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ENERGY METALS LTD — Capital/Financing Update 2015
Jun 30, 2015
64845_rns_2015-06-30_3d2fa052-4507-4074-989e-28b3ad0133cc.pdf
Capital/Financing Update
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ABN 63 111 306 533
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ASX ANNOUNCEMENT
1[st ] July 2015
ASX Code - EME
For further information, contact:
Dr Weidong Xiang Energy Metals Limited
Telephone: 61 8 9322 6904 Facsimile: 61 8 9321 5240 Email: [email protected] Level 2, 8 Colin Street West Perth WA 6005
PO Box 1323 West Perth WA 6872
This report and further information are available on Energy Metals’ website at:
www.energymetals.net
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691 TONNES U3O8 MAIDEN RESOURCE KARINS DEPOSIT, NORTHERN TERRITORY
HIGHLIGHTS
-
JORC- reported, inferred category, uranium resource estimate of 691 tonnes U3O8 at 556ppm average grade (200ppm cut-off) obtained for the historical Karins uranium deposit, Ngalia Basin, NT .
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Resource estimate based on digitised and reprocessed gamma logs for 110 historical drill holes.
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Historical data and metadata verified and archival drill core re-logged, providing a high-confidence dataset as basis of the resource estimation.
Significant drill hole intercepts include:
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1.3m at 4,092ppm eU3O8 from 7.7m in RPH95
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1.9m at 1,200ppm eU3O8 from 87.0m in RPH83
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1.0m at 1,489ppm eU3O8 from 27.2m in RPH77
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0.6m at 2,547ppm eU3O8 from 29.9m in RPH66
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6.1m at 830ppm eU3O8 from 10.9m in RPH64
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1.6m at 916ppm eU3O8 from 42.6m in RPH43
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1.5m at 722ppm eU3O8 from 62.6m in RPH18
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4.9m at 1,240ppm eU3O8 from 61.9m in RPH04
Energy Metals Limited (ASX: EME) is pleased to advise that a maiden uranium resource estimate has been obtained for the historical Karins deposit, located approximately 260km northwest of Alice Springs in the Ngalia Basin, Central Australia (Figure 1). The deposit lies on tenement applications MLN1952 and MCS318-328; part of a joint venture between EME (53.3%), Paladin Energy Ltd (41.7%) & Southern Cross Exploration NL (5%).
The Karins area was recognised as prospective for sandstone-hosted uranium by Central Pacific Minerals (CPM) in 1973 following discovery of carnotite in drill cuttings from a seismic shot hole. Subsequent exploration work, including the drilling of 110 exploration holes, was carried out by CPM in the period 1974 to 1981. EME acquired CPM’s interest in the project in 2005, including all the historical exploration records which are now held in EME’s archives.
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The Ngalia Basin, which is some 12,600 km[2] in size, is recognised as one of the Northern Territory’s significant and most prospective uranium provinces (JSU Ngalia Basin Uranium Mineral System Project, Northern Territory Geological Survey Record 2012-003) . In 2014, EME began a program of systematic documentation and evaluation of historical uranium deposits and prospects located on its Ngalia Basin tenure. Because of the thorough and meticulously kept CPM exploration records for the Karins deposit held in EME archives, it was recognised early on that this data would be of sufficient quality to proceed with a JORC-compliant resource estimation, provided geological criteria such as sufficient continuity of mineralisation and appropriate drill hole density could be demonstrated. A review by EME’s resource consultants CSA Global Ltd confirmed that the appropriate criteria were met for Karins and EME elected to proceed with a resource estimate.
Exploration Results
Karins is a tabular uranium-vanadium-style deposit similar to the Bigrlyi deposit, although with an oxidised zone (carnotite zone) of variable thickness that extends from near surface to as much as 60m depth. The fresh host rocks are generally, reduced, light grey, feldspathic, fine to medium grained sandstones containing interbedded greenish-grey siltstone or mudstone. Primary uranium mineralisation is usually present as uraninite. Drilling by CPM showed the presence of widespread uranium mineralisation, which occurs as a series of discontinuous sheets or pods, over a strike length of approximately 5.8km. Mineralised zones, which typically vary in thickness from 0.2 to 6m, were intercepted from surface to approximately 100m depth within shallowly dipping (15 to 22 degrees) sandstone beds of the Mt Eclipse Formation. The mineralised sandstone is confined by upper and lower shale units; the latter is a prominent marker bed 3 to 10m thick known as the ‘red shale’. Drillhole collar locations and other drilling details are provided in Annexure 1.
All CPM’s drill holes were logged open-hole, by independent geophysical contractors, using downhole gamma probe tools (initially the sensitive L1 probe for all holes with follow up using the O1 or ore probe over significant mineralised zones). The downhole gamma probe was used as the primary analytical tool to measure eU3O8 grade. A number of drill core samples were assayed for uranium and vanadium for comparative purposes, however, these data are not considered to be sufficiently robust nor representative to be used in the resource estimation; a number of samples were assayed to determine the extent of possible radiometric disequilibrium but no evidence of any systematic deviation from equilibrium was found.
Drill hole information and gamma log data for all drill holes, including associated metadata and probe calibration records, were compiled from EME’s archives. Historical gamma logs were archived as a compilation of analogue printouts on paper charts; these were scanned at high resolution, digitised and converted to counts per second (cps) data at 10cm intervals downhole. Using the calibration data and hole information, the cps data was reprocessed to yield deconvolved eU3O8 values according to well established methods. Significant intercepts, i.e. those defined as: minimum width 0.3m, maximum internal dilution 0.3m, cut-off grade 100ppm eU3O8, have been detailed in Annexure 2. All relevant drilling data, gamma logging data and geological data including lithological logs have been converted to digital format, verified and loaded into EME’s database. A summary of the information provided for the resource estimation is given in Table 1 below.
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Table 1. Database Summary used in the Resource Estimation
| Category | Total |
|---|---|
| Number of Drill holes | 110 |
| Total metres drilled | 5,563.6 |
| Number of Downhole Surveyrecords | 110 |
| Number of Gamma logged intervals (at 10 cm) |
49,378 |
| Number of Mineralised intervals based on 10 cmgamma-logging |
79 |
| Historical mineralised intervals based on gamma logging |
35 |
| Number of assays | 168 |
| Number of Intervals with lithological data | 648 |
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Figure 1. Map showing the location of the Karins Deposit in relation to the Ngalia Basin (in green), EME tenement boundaries and various deposits and prospects (significant deposits on EME tenure identified).
Land tenure and site access
Joint venture tenements MLN1952 (formerly SML85) and MCS318-328 (formerly MC699H-709H) were applications made by CPM in 1977 to cover the Karins prospect following cessation of the underlying EL453. Although Mineral Claims (such as MCS318-328) are considered non-compliant titles under the NT’s current Mineral Titles Act (the Act ), such applications remain in force under transitional provisions until they are transitioned to an alternative suitable title under the Act. The exact areas of Mineral Leases and Mineral Claims in the NT are subject to survey of the boundary
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and datum pegs, and this is the case with MLN1952 and MCS318-328. Therefore the exact tenement locations and geometry may differ from those displayed on the NT Department of Mines and Energy mineral titles system or in Figure 2 below. EME holds all the relevant historical records associated with the original tenement applications.
The area outside MLN1952 and MCS318-328, on which a number of un-mineralised holes are situated and on which potential strike extensions of the deposit may occur, lies within EL24462 (Figure 2). This is an application owned 100% by EME. The land underlying EL24462 was formerly part of the Mount Allan pastoral lease but in 1988 it was converted to Aboriginal Freehold land under the Aboriginal Land Rights (Northern Territory) Act 1976 (the ALRA ). The land is currently held by the Yalpirakinu Aboriginal Land Trust. Under the ALRA, access to and future grant of titles encroaching on Aboriginal Freehold land (including MLN1952, MCS318-328 and EL24462) requires an agreement with traditional owners and their representatives, in this instance, the Central Land Council (CLC). EME next has an opportunity to negotiate an exploration agreement for EL24462 on 7 December 2015 when the tenement is released from ALRA moratorium. Additionally, grant of Mineral Leases for uranium in the NT (such as MLN1952) require Federal Government approval.
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Figure 2. Map showing the location of Karins Deposit exploration drill collars (black dots) in relation to tenement boundaries, the Tanami Road and the Mt Allan trigonometric station (refer to the discussion above for further information). Topographic contour lines (brown) and drainages (blue) are shown.
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Resource Estimation Procedure
Mineralised envelopes at a 100ppm eU3O8 cut-off grade were interpreted and wireframed (Figures 3 & 4). The wireframes were constructed on the basis of a sectional interpretation in which the boundaries were extrapolated to half the nominal section spacing beyond the extents of current drilling. For profiles containing only one drill hole, an average bedding dip of 20 degrees was assumed. Using the digital lithological logs, digital models were generated for the shale horizons, base of alluvial cover, and boundary between oxidised sandstone (predominance of carnotite mineralisation) and reduced sandstone (predominance of uraninite mineralisation).
The Karins downhole eU3O8 data were composited over mineralised intervals using the following parameters: minimum thickness 0.3m, 100ppm eU3O8 cut-off grade, 0.3m maximum width of internal waste, no external dilution, and minimum grade-thickness of 30 ppm·m. Statistical and geostatistical analysis were then performed. The block model was created and filled following application of a coordinate transformation to provide a constant orientation of mineralisation for interpolation purposes. The Inverse Distance Weighted Squared method was used for interpolation of grades in the block model. The dimensions of the parent blocks were set at 5х5х0.5m with subcelling applied at the boundaries of the model. Modelled cells located above the alluvial cover surface were removed. An average bulk density of 2.48t/m[3] , as measured from Karins core samples held in EME’s core storage facility, was used. The distribution of grades obtained is shown in Figure 5 and the resulting resource estimate, which is classified as inferred, is provided in Annexure 3 for various cut-off grades.
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Figure 3. Example of the Interpretation of Mineralised Bodies along the RPH92, RPH64, RPH91 section.
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Figure 4. Wireframe models of the mineralised bodies.
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Figure 5. View showing grade distribution within mineralised bodies.
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Summary
The Mineral Resources are summarised in Table 2 for a 200ppm U3O8 cut-off grade:
Table 2: Estimate of Mineral Resources for the Karins Deposit (Ngalia Basin)
| Grade | Grade | Mineral Resources | Mineral Resources | ||||
|---|---|---|---|---|---|---|---|
| Category | Type | Volume '000 m3 |
Tonnes '000 t |
U3O8 | U | U3O8 |
U3O8 |
| ppm | % | tonnes | M lb | ||||
| Inferred | Oxidised | 290 | 719 | 526 | 0.045 | 379 | 0.83 |
| Inferred | Primary | 211 | 524 | 597 | 0.051 | 312 | 0.69 |
| Inferred | Total | 501 | 1,243 | 556 | 0.047 | 691 | 1.52 |
Notes:
1. The Mineral Resources are for a 100% interest in the joint venture and not the Mineral Resources attributable to the individual joint venture partners.
2. Mineral Resources are based on 200 ppm cut-off grade per resource block.
3. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.
4. Mineral Resources are based on JORC-2012 definitions.
5. Mineral Resources are based on a bulk density of 2.48 t/m[3] .
6. Rows and columns may not add up exactly due to rounding.
The Mineral Resources have been classified and reported in accordance with JORC (2012) requirements. The resource classification is based on the assessed level of confidence in sample methods used, geological interpretation, drill spacing and geostatistical measures.
Energy Metals believes the mineral resources defined here make a valuable contribution to total regional uranium resources in the Ngalia Basin – a significant uranium province in the NT – as well as enhancing the economics of any potential regional mining development since the resource is located at open pittable depths. The economics of any mining development could be further enhanced if the uranium is amenable to in-situ recovery methods, as suggested by the favourable deposit geology at Karins including confinement of mineralisation by shale horizons. In addition, EME believes there is considerable scope for expansion of the deposit down-dip of the current resource, which is largely untested, as well as along strike. Access to the deposit for further exploration and test work will require grant of the mineral titles and an agreement with the Aboriginal landowners.
For and on behalf of the Board.
Weidong Xiang Managing Director 1[st] July 2015
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Competent Persons Statement
The information in this report that relates to Mineral Resource estimation is based on information compiled by Mr Dmitry Pertel, Principal Consultant Geologist, CSA Global Ltd and Dr Maxim Seredkin, Principal Consultant Geologist, CSA Global Ltd. Information in this report relating to the interpretation and determination of gamma probe results is based on information compiled by Mr Evgeny Sirotenko, consultant geophysicist, under supervision of Dr Maxim Seredkin, Principal Consultant Geologist, CSA Global Ltd. Mr Pertel is a member of the Australian Institute of Geoscientists (MAIG) and is an employee of CSA Global. Dr Seredkin is a Fellow of the Australasian Institute of Mining and Metallurgy (FAusIMM), a member of the Australian Institute of Geoscientists (MAIG), and is an employee of CSA Global. Mr Pertel and Dr Seredkin have sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which they are undertaking to qualify as Competent Persons as defined by the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves – The JORC Code (2012)”, and Mr Pertel and Dr Seredkin both consent to the inclusion in this report of the matters based on the information in the form and context in which it appears.
Information in this report relating to exploration results, data, cut-off grades and QAQC analysis is based on information compiled by Dr Wayne Taylor and Mr Lindsay Dudfield. Mr Dudfield is a member of the AusIMM and the AIG. Dr Taylor is a member of the AIG and is a full time employee of Energy Metals; Mr Dudfield is a consultant to Energy Metals. They both have sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which they are undertaking to qualify as a Competent Person as defined in the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves – The JORC Code (2012)”. Dr Taylor and Mr Dudfield both consent to the inclusion of the information in the report in the form and context in which it appears.
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Annexure 1. Collar coordinates for historical drilling at the Karins Deposit, GDA94 datum, Zone 52.
| TRUE AZIMUTH (degrees) |
TOTAL DEPTH (m) |
|||||||
| HOLE NUMBER |
EASTING (m) |
NORTHING (m) |
ELEVATION (m) |
DRILL TYPE* |
DIP (degrees) |
Completion Date |
||
| RPH01 | 802720 | 7515665 | 633 | PH | -90 | 5 | 100.0 | 13/09/1974 |
| RPH02A | 803619 | 7516114 | 633 | PH | -90 | 5 | 85.0 | 16/09/1974 |
| RPH03 | 804262 | 7515714 | 636 | PH | -90 | 5 | 86.0 | 18/09/1974 |
| RPH04 | 802621 | 7515534 | 634 | PH | -90 | 5 | 86.0 | 19/09/1974 |
| RPH05 | 802571 | 7515375 | 635 | PH | -90 | 5 | 139.0 | 20/09/1974 |
| RPH06 | 802744 | 7515683 | 633 | PH | -90 | 5 | 17.0 | 29/10/1974 |
| RPH07 | 802693 | 7515700 | 633 | PH | -90 | 5 | 21.0 | 28/10/1974 |
| RPH08 | 802651 | 7515728 | 633 | PH | -90 | 5 | 19.0 | 28/10/1974 |
| RPH09 | 802604 | 7515752 | 633 | PH | -90 | 5 | 19.0 | 28/10/1974 |
| RPH10 | 802556 | 7515770 | 633 | PH | -90 | 5 | 20.0 | 29/10/1974 |
| RPH11 | 802766 | 7515634 | 634 | PH | -90 | 5 | 29.0 | 29/10/1974 |
| RPH12 | 802810 | 7515610 | 634 | PH | -90 | 5 | 30.0 | 29/10/1974 |
| RPH13 | 802857 | 7515591 | 634 | PH | -90 | 5 | 30.0 | 03/11/1974 |
| RPH14 | 802909 | 7515583 | 634 | PH | -90 | 5 | 27.0 | 04/11/1974 |
| RPH15 | 802673 | 7515681 | 633 | PH | -90 | 5 | 30.0 | 04/11/1974 |
| RPH16 | 802666 | 7515515 | 634 | PH | -90 | 5 | 80.0 | 08/11/1974 |
| RPH17 | 802573 | 7515554 | 634 | PH | -90 | 5 | 81.0 | 11/11/1974 |
| RPH18 | 802596 | 7515544 | 634 | PH | -90 | 5 | 79.0 | 15/11/1974 |
| RPH19 | 802642 | 7515523 | 634 | PH | -90 | 5 | 82.0 | 18/11/1974 |
| RPH20 | 802670 | 7515584 | 634 | PH | -90 | 5 | 59.0 | 03/09/1975 |
| RPH21 | 802569 | 7515488 | 635 | PH | -90 | 5 | 99.0 | 03/09/1975 |
| RPH22 | 828505 | 7504045 | 610 | PH | -90 | 5 | 37.0 | 02/09/1975 |
| RPH23 | 828468 | 7503817 | 609 | PH | -90 | 5 | 61.0 | 04/09/1975 |
| RPH24 | 828698 | 7503901 | 610 | PH | -90 | 5 | 50.0 | 05/09/1975 |
| RPH25 | 828990 | 7504099 | 611 | PH | -90 | 5 | 50.0 | 05/09/1975 |
| RPH25A | 828992 | 7504099 | 611 | PH | -90 | 5 | 100.0 | 14/09/1975 |
| RPH26 | 829849 | 7504679 | 613 | PH | -90 | 5 | 43.0 | 09/09/1975 |
| RPH27 | 830213 | 7505802 | 617 | PH | -90 | 5 | 50.0 | 09/09/1975 |
| RPH28 | 829671 | 7505124 | 615 | PH | -90 | 5 | 38.0 | 09/09/1975 |
| RPH29 | 829537 | 7505748 | 616 | PH | -90 | 5 | 38.0 | 10/09/1975 |
| RPH30 | 831880 | 7501712 | 600 | PH | -90 | 5 | 26.0 | 10/09/1975 |
| RPH31 | 831632 | 7501490 | 599 | PH | -90 | 5 | 44.0 | 10/09/1975 |
| RPH32 | 831853 | 7501091 | 598 | PH | -90 | 5 | 44.0 | 10/09/1975 |
| RPH33 | 802241 | 7515830 | 635 | PH | -90 | 5 | 60.0 | 04/05/1976 |
| RPH34 | 801807 | 7516082 | 639 | PH | -90 | 5 | 61.0 | 05/05/1976 |
| RPH35 | 801391 | 7516361 | 642 | PH | -90 | 5 | 50.0 | 05/05/1976 |
| RPH36 | 800974 | 7516658 | 644 | PH | -90 | 5 | 64.0 | 05/05/1976 |
| RPH37 | 800516 | 7516870 | 647 | PH | -90 | 5 | 48.0 | 06/05/1976 |
| RPH38 | 800117 | 7517168 | 650 | PH | -90 | 5 | 31.0 | 06/05/1976 |
| RPH39 | 803147 | 7515423 | 636 | PH | -90 | 5 | 54.0 | 06/05/1976 |
| RPH40 | 803626 | 7515273 | 639 | PH | -90 | 5 | 38.0 | 06/05/1976 |
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| RPH41 | 804049 | 7515029 | 636 | PH | -90 | 5 | 48.0 | 07/05/1976 |
|---|---|---|---|---|---|---|---|---|
| RPH42 | 804525 | 7514872 | 630 | PH | -90 | 5 | 52.0 | 07/05/1976 |
| RPH43 | 805053 | 7514811 | 625 | PH | -90 | 5 | 53.0 | 07/05/1976 |
| RPH44 | 805532 | 7514654 | 621 | PH | -90 | 5 | 50.0 | 07/05/1976 |
| RPH45 | 805304 | 7514773 | 624 | PH | -90 | 5 | 35.0 | 07/05/1976 |
| RPD46 | 805077 | 7514854 | 625 | DD | -90 | 5 | 55.6 | 07/05/1976 |
| RPH47 | 805032 | 7514764 | 625 | PH | -90 | 5 | 55.0 | 08/07/1976 |
| RPH48 | 804814 | 7514884 | 627 | PH | -90 | 5 | 34.0 | 08/05/1976 |
| RPH49 | 804287 | 7514954 | 633 | PH | -90 | 5 | 41.0 | 08/05/1976 |
| RPH50 | 803862 | 7515197 | 639 | PH | -90 | 5 | 33.0 | 09/05/1976 |
| RPH51 | 804985 | 7514782 | 625 | PH | -90 | 5 | 44.0 | 09/05/1976 |
| RPH52 | 805008 | 7514827 | 625 | PH | -90 | 5 | 41.0 | 09/05/1976 |
| RPH53 | 805079 | 7514745 | 625 | PH | -90 | 5 | 48.0 | 09/05/1976 |
| RPH54 | 805103 | 7514790 | 625 | PH | -90 | 5 | 62.0 | 10/05/1976 |
| RPD55 | 805097 | 7514845 | 625 | DD | -90 | 5 | 32.0 | 10/05/1976 |
| RPH56 | 802072 | 7516042 | 636 | PH | -90 | 5 | 55.0 | 11/05/1976 |
| RPH57 | 802153 | 7515879 | 636 | PH | -90 | 5 | 44.0 | 11/05/1976 |
| RPH58 | 801894 | 7516028 | 638 | PH | -90 | 5 | 49.0 | 11/05/1976 |
| RPH59 | 801744 | 7516179 | 639 | PH | -90 | 5 | 35.0 | 11/05/1976 |
| RPH60 | 802065 | 7515932 | 637 | PH | -90 | 5 | 47.0 | 12/05/1976 |
| RPH61 | 802325 | 7515781 | 635 | PH | -90 | 5 | 51.0 | 12/05/1976 |
| RPH62 | 802455 | 7515704 | 634 | PH | -90 | 5 | 53.0 | 12/05/1976 |
| RPH63 | 802306 | 7515851 | 635 | PH | -90 | 5 | 34.0 | 12/05/1976 |
| RPH64 | 801639 | 7516296 | 640 | PH | -90 | 5 | 25.0 | 13/05/1976 |
| RPH65 | 801591 | 7516210 | 641 | PH | -90 | 5 | 38.0 | 13/05/1976 |
| RPH66 | 802908 | 7515501 | 634 | PH | -90 | 5 | 52.0 | 13/05/1976 |
| RPH67 | 802132 | 7515646 | 638 | PH | -90 | 5 | 128.0 | 14/05/1976 |
| RPD68 | 802897 | 7515479 | 634 | PH | -90 | 5 | 58.7 | 13/07/1976 |
| RPH69 | 803388 | 7515348 | 639 | PH | -90 | 5 | 42.0 | 14/07/1976 |
| RPH70 | 805757 | 7514590 | 620 | PH | -90 | 5 | 45.0 | 15/07/1976 |
| RPH71 | 805989 | 7514492 | 619 | PH | -90 | 5 | 61.0 | 15/07/1976 |
| RPH72 | 806276 | 7514503 | 619 | PH | -90 | 5 | 35.0 | 16/07/1976 |
| RPH73 | 806515 | 7514425 | 619 | PH | -90 | 5 | 22.0 | 16/07/1976 |
| RPH74 | 806801 | 7514439 | 619 | PH | -90 | 5 | 12.0 | 16/07/1976 |
| RPH75 | 801164 | 7516465 | 643 | PH | -90 | 5 | 45.0 | 17/07/1976 |
| RPH76 | 800723 | 7516725 | 646 | PH | -90 | 5 | 45.0 | 17/07/1976 |
| RPH77 | 800319 | 7517017 | 648 | PH | -90 | 5 | 33.0 | 17/07/1976 |
| RPH78 | 799869 | 7517231 | 651 | PH | -90 | 5 | 46.0 | 18/07/1976 |
| RPH79 | 799653 | 7517386 | 652 | PH | -90 | 5 | 37.0 | 18/07/1976 |
| RPD80 | 799408 | 7517438 | 654 | PH | -90 | 5 | 59.6 | 22/07/1976 |
| RPD81 | 801665 | 7516283 | 638 | DD | -90 | 5 | 20.4 | 23/07/1976 |
| RPD82 | 801613 | 7516311 | 640 | DD | -90 | 5 | 19.0 | 23/07/1976 |
| RPD83 | 802173 | 7515709 | 638 | DD | -90 | 5 | 106.8 | 09/08/1976 |
| RPD84 | 802625 | 7515502 | 634 | DD | -59 | 26 | 84.5 | 27/07/1976 |
| RPD85 | 800304 | 7516989 | 648 | DD | -59 | 6 | 36.7 | 28/07/1976 |
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| RPH86 | 799227 | 7517624 | 655 | PH | -90 | 5 | 33.0 | 07/08/1976 |
|---|---|---|---|---|---|---|---|---|
| RPH87 | 799002 | 7517730 | 656 | PH | -90 | 5 | 39.0 | 07/08/1976 |
| RPH88 | 798798 | 7517874 | 658 | PH | -90 | 5 | 27.0 | 07/08/1976 |
| RPH89 | 798568 | 7517980 | 659 | PH | -90 | 5 | 42.0 | 07/08/1976 |
| RPH90 | 800336 | 7517045 | 648 | PH | -90 | 5 | 24.0 | 07/08/1976 |
| RPH91 | 801643 | 7516317 | 640 | PH | -90 | 5 | 12.0 | 08/08/1976 |
| RPH92 | 801624 | 7516268 | 642 | PH | -90 | 5 | 32.0 | 08/08/1976 |
| RPH93 | 801686 | 7516263 | 638 | PH | -90 | 5 | 20.0 | 09/08/1976 |
| RPH94 | 801581 | 7516322 | 640 | PH | -90 | 5 | 20.0 | 09/08/1976 |
| RPH95 | 801554 | 7516359 | 640 | PH | -90 | 5 | 17.0 | 10/08/1976 |
| RPH96 | 801514 | 7516387 | 641 | PH | -90 | 5 | 16.0 | 10/08/1976 |
| RPH97 | 801473 | 7516417 | 641 | PH | -90 | 5 | 14.0 | 10/08/1976 |
| RPH98 | 801433 | 7516449 | 642 | PH | -90 | 5 | 12.0 | 10/08/1976 |
| RPH99 | 801391 | 7516478 | 642 | PH | -90 | 5 | 10.0 | 10/08/1976 |
| RPH100 | 801218 | 7516566 | 643 | PH | -90 | 5 | 13.0 | 10/08/1976 |
| RPH101 | 801089 | 7516589 | 644 | PH | -90 | 5 | 26.0 | 10/08/1976 |
| RPH102 | 802807 | 7515820 | 632 | PH | -90 | 5 | 150.0 | 18/08/1979 |
| RPH103 | 802979 | 7516163 | 630 | PH | -90 | 5 | 117.0 | 19/08/1979 |
| RPH104 | 803116 | 7516451 | 629 | PH | -90 | 5 | 96.0 | 05/10/1980 |
| RPH105 | 803229 | 7516673 | 628 | PH | -90 | 5 | 133.0 | 06/10/1980 |
| RPH106 | 803333 | 7516877 | 626 | PH | -90 | 5 | 90.0 | 13/06/1981 |
| RPH107 | 803409 | 7517104 | 625 | PH | -90 | 5 | 90.0 | 14/06/1981 |
| RPH108 | 803299 | 7516770 | 627 | PH | -90 | 5 | 120.0 | 15/06/1981 |
| RPH109 | 803498 | 7516653 | 628 | PH | -75 | 35 | 102.0 | 15/06/1981 |
*PH = Percussion Hole; DD = Diamond Drill Core
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Annexure 2. Significant eU3O8 (Deconvolved Gamma Log) intercepts from the Karins Deposit based on the criteria: minimum width 0.3m, maximum internal dilution 0.3m, 100ppm eU3O8 cut-off grade. Grade x Thickness values >1000 are highlighted in bold italics.
| GRADE eU3O8 (ppm) |
||||||
| HOLE NUMBER |
FROM (m) |
TO (m) |
WIDTH (m) |
Gamma Probe* |
Grade x Thickness |
|
| RPH01 | 16.0 | 16.8 | 0.8 | O-1 | 444 | 355 |
| RPH04 | 58.6 | 58.9 | 0.3 | O-1 | 322 | 97 |
| and | 61.9 | 66.8 | 4.9 | O-1 | 1,240 | 6075 |
| RPH11 | 18.7 | 19.2 | 0.5 | O-1 | 457 | 228 |
| RPH12 | 13.1 | 13.6 | 0.5 | L-1 | 115 | 57 |
| RPH17 | 58.8 | 59.9 | 1.1 | L-1 | 156 | 172 |
| RPH18 | 58.6 | 59.0 | 0.4 | O-1 | 494 | 198 |
| and | 62.6 | 64.1 | 1.5 | O-1 | 722 | 1082 |
| and | 65.6 | 67.2 | 1.6 | O-1 | 282 | 452 |
| RPH19 | 60.9 | 61.5 | 0.6 | O-1 | 1,086 | 651 |
| and | 65.7 | 66.3 | 0.6 | O-1 | 264 | 159 |
| RPH20 | 35.4 | 36.5 | 1.1 | O-1 | 333 | 366 |
| and | 47.5 | 48.5 | 1.0 | O-1 | 282 | 282 |
| and | 53.6 | 55.8 | 2.2 | O-1 | 275 | 606 |
| RPH25A | 36.2 | 37.7 | 1.5 | L-1 | 110 | 166 |
| RPH33 | 38.7 | 39.5 | 0.8 | O-1 | 238 | 191 |
| and | 40.3 | 40.6 | 0.3 | O-1 | 204 | 61 |
| RPH34 | 46.1 | 46.4 | 0.3 | O-1 | 274 | 82 |
| RPH36 | 17.6 | 18.0 | 0.4 | L-1 | 120 | 48 |
| and | 21.1 | 21.4 | 0.3 | L-1 | 104 | 31 |
| and | 21.7 | 22.3 | 0.6 | L-1 | 104 | 62 |
| RPH37 | 33.4 | 34.6 | 1.2 | O-1 | 297 | 356 |
| and | 35.2 | 35.6 | 0.4 | O-1 | 123 | 49 |
| RPH43 | 42.6 | 44.2 | 1.6 | O-1 | 916 | 1466 |
| RPH51 | 43.6 | 43.9 | 0.3 | L-1 | 131 | 39 |
| RPH56 | 8.5 | 9.2 | 0.7 | L-1 | 120 | 84 |
| RPH57 | 39.4 | 40.3 | 0.9 | O-1 | 215 | 193 |
| RPH59 | 25.9 | 26.6 | 0.7 | O-1 | 190 | 133 |
| RPH61 | 31.4 | 32.0 | 0.6 | L-1 | 154 | 93 |
| and | 36.9 | 37.2 | 0.3 | L-1 | 121 | 36 |
| and | 37.8 | 38.7 | 0.9 | L-1 | 120 | 108 |
| RPH62 | 49.9 | 50.2 | 0.3 | L-1 | 106 | 32 |
| RPH63 | 22.8 | 23.6 | 0.8 | O-1 | 331 | 265 |
| and | 23.9 | 24.4 | 0.5 | O-1 | 106 | 53 |
| RPH64 | 10.9 | 17.0 | 6.1 | O-1 | 830 | 5066 |
| RPH66 | 29.9 | 30.5 | 0.6 | O-1 | 2,547 | 1528 |
| and | 31.4 | 31.7 | 0.3 | O-1 | 106 | 32 |
| and | 41.4 | 42.1 | 0.7 | O-1 | 348 | 243 |
| RPH67 | 102.7 | 103.1 | 0.4 | O-1 | 476 | 190 |
12
| and | 104.6 | 105.1 | 0.5 | O-1 | 469 | 234 |
|---|---|---|---|---|---|---|
| RPD68 | 33.5 | 33.8 | 0.3 | O-1 | 318 | 95 |
| and | 35.2 | 35.5 | 0.3 | O-1 | 298 | 89 |
| and | 38.8 | 39.3 | 0.5 | O-1 | 435 | 218 |
| and | 47.4 | 48.0 | 0.6 | O-1 | 277 | 166 |
| RPH75 | 15.0 | 15.6 | 0.6 | L-1 | 139 | 84 |
| and | 34.4 | 36.4 | 2.0 | L-1 | 113 | 225 |
| RPH76 | 38.8 | 39.6 | 0.8 | O-1 | 362 | 289 |
| RPH77 | 27.2 | 28.2 | 1.0 | O-1 | 1,489 | 1489 |
| and | 29.5 | 29.9 | 0.4 | O-1 | 123 | 49 |
| RPH78 | 36.9 | 37.7 | 0.8 | L-1 | 109 | 87 |
| and | 38.3 | 38.6 | 0.3 | L-1 | 102 | 30 |
| RPD81 | 10.4 | 12.7 | 2.3 | O-1 | 756 | 1738 |
| RPD82 | 10.1 | 15.3 | 5.2 | O-1 | 408 | 2122 |
| RPD83 | 87.0 | 88.9 | 1.9 | O-1 | 1,200 | 2280 |
| RPD84 | 63.8 | 66.5 | 2.7 | O-1 | 515 | 1389 |
| and | 67.0 | 68.2 | 1.2 | O-1 | 373 | 447 |
| and | 73.1 | 74.1 | 1.0 | O-1 | 281 | 281 |
| RPH91 | 8.1 | 8.9 | 0.8 | L-1 | 151 | 121 |
| RPH92 | 23.9 | 24.7 | 0.8 | O-1 | 332 | 266 |
| and | 29.1 | 29.4 | 0.3 | O-1 | 106 | 32 |
| RPH93 | 10.5 | 12.8 | 2.3 | O-1 | 326 | 749 |
| and | 14.0 | 14.3 | 0.3 | O-1 | 118 | 35 |
| and | 14.6 | 16.5 | 1.9 | O-1 | 450 | 854 |
| and | 17.4 | 18.0 | 0.6 | O-1 | 145 | 87 |
| RPH94 | 13.5 | 15.1 | 1.6 | O-1 | 351 | 561 |
| and | 16.6 | 16.9 | 0.3 | O-1 | 106 | 32 |
| RPH95 | 7.7 | 9.0 | 1.3 | O-1 | 4,092 | 5320 |
| and | 9.4 | 9.7 | 0.3 | O-1 | 133 | 40 |
| and | 11.2 | 11.6 | 0.4 | O-1 | 314 | 126 |
| and | 13.6 | 14.1 | 0.5 | O-1 | 228 | 114 |
| RPH96 | 12.2 | 13.2 | 1.0 | O-1 | 273 | 273 |
| and | 14.4 | 14.7 | 0.3 | O-1 | 106 | 32 |
| RPH97 | 5.6 | 8.2 | 2.6 | O-1 | 580 | 1507 |
| and | 10.6 | 11.1 | 0.5 | O-1 | 228 | 114 |
| and | 11.8 | 12.2 | 0.4 | O-1 | 121 | 48 |
| RPH98 | 8.8 | 9.2 | 0.4 | L-1 | 115 | 46 |
| RPH99 | 6.3 | 7.2 | 0.9 | L-1 | 129 | 116 |
| RPH101 | 15.9 | 17.2 | 1.3 | O-1 | 459 | 597 |
*Gamma probe: O-1 = Ore-Probe; L-1 = Lithology Probe.
13
Annexure 3. Karins Deposit Resource Report.
| Grade | Grade | Mineral Resources | Mineral Resources | |||||
|---|---|---|---|---|---|---|---|---|
| Cut off grade |
Category | Type | Volume '000 m3 |
Tonnes '000 t |
U3O8 ppm |
U % |
U3O8 |
U3O8 |
| tonnes | M lb | |||||||
| 0 | Inferred | Oxidised | 438 | 1,087 | 391 | 0.033 | 425 | 0.94 |
| Primary | 335 | 831 | 420 | 0.036 | 349 | 0.77 | ||
| Total | 773 | 1,918 | 404 | 0.034 | 775 | 1.71 | ||
| 100 | Inferred | Oxidised | 438 | 1,087 | 391 | 0.033 | 425 | 0.94 |
| Primary | 335 | 831 | 420 | 0.036 | 349 | 0.77 | ||
| Total | 773 | 1,918 | 404 | 0.034 | 775 | 1.71 | ||
| 200 | Inferred | Oxidised | 290 | 719 | 526 | 0.045 | 379 | 0.83 |
| Primary | 211 | 524 | 597 | 0.051 | 312 | 0.69 | ||
| Total | 501 | 1,243 | 556 | 0.047 | 691 | 1.52 | ||
| 300 | Inferred | Oxidised | 178 | 441 | 693 | 0.059 | 305 | 0.67 |
| Primary | 143 | 354 | 754 | 0.064 | 268 | 0.59 | ||
| Total | 321 | 795 | 721 | 0.061 | 573 | 1.26 | ||
| 400 | Inferred | Oxidised | 107 | 265 | 937 | 0.079 | 249 | 0.55 |
| Primary | 108 | 268 | 892 | 0.076 | 239 | 0.53 | ||
| Total | 215 | 534 | 914 | 0.078 | 488 | 1.08 | ||
| 500 | Inferred | Oxidised | 75 | 187 | 1,139 | 0.097 | 213 | 0.47 |
| Primary | 85 | 212 | 1,008 | 0.085 | 213 | 0.47 | ||
| Total | 161 | 399 | 1,069 | 0.091 | 426 | 0.94 | ||
| 600 | Inferred | Oxidised | 58 | 143 | 1,321 | 0.112 | 189 | 0.42 |
| Primary | 65 | 161 | 1,144 | 0.097 | 184 | 0.41 | ||
| Total | 123 | 304 | 1,227 | 0.104 | 373 | 0.82 | ||
| 700 | Inferred | Oxidised | 48 | 118 | 1,466 | 0.124 | 173 | 0.38 |
| Primary | 58 | 144 | 1,203 | 0.102 | 173 | 0.38 | ||
| Total | 106 | 262 | 1,321 | 0.112 | 347 | 0.76 | ||
| 800 | Inferred | Oxidised | 42 | 103 | 1,568 | 0.133 | 162 | 0.36 |
| Primary | 53 | 131 | 1,248 | 0.106 | 164 | 0.36 | ||
| Total | 95 | 234 | 1,389 | 0.118 | 325 | 0.72 | ||
| 900 | Inferred | Oxidised | 36 | 90 | 1,670 | 0.142 | 151 | 0.33 |
| Primary | 47 | 117 | 1,295 | 0.11 | 152 | 0.33 | ||
| Total | 84 | 208 | 1,458 | 0.124 | 303 | 0.67 | ||
| 1,000 | Inferred | Oxidised | 33 | 81 | 1,756 | 0.149 | 142 | 0.31 |
| Primary | 43 | 105 | 1,334 | 0.113 | 140 | 0.31 | ||
| Total | 75 | 186 | 1,517 | 0.129 | 283 | 0.62 |
Note: All figures in the tables are rounded, and therefore the total sums might not be the direct sum of the input figures
14
The following commentary is provided to ensure compliance with the JORC (2012) requirements for the reporting of Mineral Resource Estimates as discussed above for the Karins Deposit located on tenements MLN1952 and MCS318-328.
Section 1 Sampling Techniques and Data
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Sampling | Nature and quality of sampling (eg cut channels, random chips, or | | The primary sampling instrument at the Karins Deposit was the |
| techniques | specific specialised industry standard measurement tools appropriate | downhole gamma tool (or ‘probe’) which was used to obtain a total | |
| to the minerals under investigation, such as down hole gamma | gamma count reading with depth down each drill hole. Drilling was by | ||
| sondes, or handheld XRF instruments, etc). These examples should | rotary percussion (PH) or diamond core drilling (DD) methods and drill | ||
| not be taken as limiting the broad meaning of sampling. | lines were on a nominal 250m spacing (eastings) with closer spacing | ||
| Include reference to measures taken to ensure sample representivity | (50 to 25m) within mineralised zones. Drill holes were mostly vertical | ||
| and the appropriate calibration of any measurement tools or systems | to optimally intersect shallow-dipping mineralisation. Original |
||
| used. | analogue gamma log data was digitised at 10cm intervals downhole | ||
| Aspects of the determination of mineralisation that are Material to the | and converted to standard format LAS files followed by calculation of | ||
| Public Report. | equivalent U3O8(eU3O8) grades (see below for further information on | ||
| In cases where ‘industry standard’ work has been done this would be | gamma log processing procedures). | ||
| relatively simple (eg ‘reverse circulation drilling was used to obtain 1 | | The total count gamma logging method used here is a common | |
| m samples from which 3 kg was pulverised to produce a 30 g charge | method used to estimate uranium grade where the radiation | ||
| for fire assay’). In other cases more explanation may be required, | contribution from thorium and potassium is small (as is the case for | ||
| such as where there is coarse gold that has inherent sampling | sandstone-hosted deposits of the Bigrlyi-type considered here). | ||
| problems. Unusual commodities or mineralisation types (eg | Gamma radiation is measured from a volume surrounding the drill | ||
| submarine nodules) may warrant disclosure of detailed information. | hole that has a radius of approximately 35cm. Therefore the gamma | ||
| probe samples a much larger volume than drill spoil or drill core | |||
| samples recovered from a drill hole of normal diameter; gamma | |||
| logging is considered to provide a more representative sample of the | |||
| ore body and is preferred over geochemical assay of drill samples. | |||
| | Estimates of uranium concentration determined from gamma ray | ||
| measurements are based on the commonly accepted initial | |||
| assumption that the uranium is in secular equilibrium with its daughter | |||
| products (radionuclides), which are the principal gamma ray emitters | |||
| along the U-series decay chain. If uranium is in disequilibrium as a | |||
| result of the redistribution (depletion or enhancement) of uranium | |||
| relative to its daughter radionuclides, then the true uranium | |||
| concentration in the holes logged using the gamma probe will be | |||
| higher or lower than those reported. Closed can gamma |
|||
| measurements and chemical assay data from 17 samples from both | |||
| the carnotite and uraninite zones of the Karins Deposit confirm that | |||
| there is no systematic deviation from equilibrium and a correction for |
15
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| disequilibrium has not been made. i.e. the Radioactive Equilibrium | ||
| Factor (REF) = U3O8/eU3O8= 1. This is consistent with current | ||
| knowledge of other Ngalia Basin uranium deposits such as Bigrlyi. | ||
| Drilling | Drill type (eg core, reverse circulation, open-hole hammer, rotary air | Most of the drilling was by the rotary percussion (PH) method using |
| techniques | blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple | tricone roller bits and an air hammer. Hole sizes ranged from 4.5 to |
| or standard tube, depth of diamond tails, face-sampling bit or other | 6.5 inches and were not cased except for PVC collars in the top 2- | |
| type, whether core is oriented and if so, by what method, etc). | 4m. Seven NQ-size diamond core holes were drilled and the core is | |
| archived in EME’s Bigrlyi core yard. As part of data validation | ||
| procedures, four drill core holes were re-logged by EME geologists. | ||
| Drill sample | Method of recording and assessing core and chip sample recoveries | Drill spoil recovery is not relevant to the sampling method used (i.e. |
| recovery | and results assessed. | downhole gamma logging). |
| Measures taken to maximise sample recovery and ensure | ||
| representative nature of the samples. | ||
| Whether a relationship exists between sample recovery and grade | ||
| and whether sample bias may have occurred due to preferential | ||
| loss/gain of fine/coarse material. | ||
| Logging | Whether core and chip samples have been geologically and | Four historical diamond core holes were re-logged by EME geologists |
| geotechnically logged to a level of detail to support appropriate | for lithology, colour, grain-size, stratigraphic unit, oxidation state, | |
| Mineral Resource estimation, mining studies and metallurgical | alteration, cementation, weathering and other features; data was | |
| studies. | recorded digitally and the core was photographed. Scintillometer and | |
| Whether logging is qualitative or quantitative in nature. Core (or | Niton portable XRF measurements were undertaken at 20cm | |
| costean, channel, etc) photography. | intervals through ore zones to confirm the width of mineralisation. The | |
| The total length and percentage of the relevant intersections logged. | coded data was verified according to Energy Metals’ standard logging | |
| look-up tables. The re-logs were found to be in good agreement with | ||
| previous logging records, which provided confidence in the quality of | ||
| original CPM logging, and permitted EME to proceed with digitisation | ||
| of the remaining CPM historical drill core logs. | ||
| PH drill chip samples were logged at the time of drilling by CPM | ||
| geologists and the hard copy lithological logs were converted to | ||
| digital format by EME geologists using EME’s standard codes. |
16
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sub- | If core, whether cut or sawn and whether quarter, half or all core | Samples of half core were submitted for uranium (and vanadium) |
| sampling | taken. | assay work historically by CPM, however, these data were not used |
| techniques and sample preparation |
If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry. For all sample types, the nature, quality and appropriateness of the sample preparation technique. |
for the present resource estimation work as they are not considered sufficiently robust nor representative in comparison with the gamma log measurements. |
| Quality control procedures adopted for all sub-sampling stages to | ||
| maximise representivity of samples. | ||
| Measures taken to ensure that the sampling is representative of the in | ||
| situ material collected, including for instance results for field | ||
| duplicate/second-half sampling. | ||
| Whether sample sizes are appropriate to the grain size of the material | ||
| being sampled. | ||
| Quality of | The nature, quality and appropriateness of the assaying and | The gamma tools used for downhole gamma ray measurements were |
| assay data | laboratory procedures used and whether the technique is considered | calibrated and operated by geophysical contractors McPhar |
| and | partial or total. | Geophysics Pty Ltd until 1975 and after this time by Geoex Pty Ltd of |
| laboratory tests |
For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their |
South Australia who acquired the assets of McPhar. Calibration information including k-factors and deadtime corrections and hole information including hole diameter and fluid levels/type were |
| derivation, etc. | recorded for each hole. The accuracy and reproducibility of the probe | |
| Nature of quality control procedures adopted (eg standards, blanks, | data were monitored using two on-site standard radioactive sources | |
| duplicates, external laboratory checks) and whether acceptable levels | (a low-level and a high-level source) and the monitoring data was |
|
| of accuracy (ie lack of bias) and precision have been established. | included on each paper log and deemed satisfactory. | |
| All drill holes were probed open-hole with the L1 or lithology gamma | ||
| probe which employed a sensitive 4 x 1 inch detector crystal. | ||
| Intervals of significant mineralisation (off-scale on the L1 probe) were | ||
| re-probed with the O1 or ore gamma probe which employed a less | ||
| sensitive 1 x ¾ inch detector crystal. | ||
| Approximately half the drill holes (i.e. those with a standing water | ||
| level) were logged electrically to provide downhole electric potential | ||
| and resistivity information. One hole was logged with a neutron probe | ||
| to provide porosity information. This data has not been digitised nor | ||
| used for the present resource estimation purposes. | ||
| The counts per second (cps) downhole gamma data were recorded | ||
| on paper charts with an analogue pen recorder; for some holes the | ||
| cps data was also recorded in digital printout form for the O1 probe. | ||
| Logging parameters including the time constant, logging speed and | ||
| chart scale were recorded. Both L1 and O1paper logs were digitised |
17
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| by EME’s geophysical contractor and converted into digital standard- | ||
| format LAS files. | ||
| LAS file data were converted to equivalent U3O8values (eU3O8in | ||
| ppm) using the specified probe calibration factors and taking into | ||
| account drill-hole size, fluid levels and other parameters. The eU3O8 | ||
| data was filtered (deconvolved) to correct for smearing of the gamma | ||
| signal at mineralised interfaces so that true grades and thicknesses | ||
| more closely reproduce actual grade. The eU3O8grades were | ||
| calculated by consultant geophysicist Mr Evgeny Sirotenko under the | ||
| supervision of Dr Maxim Seredkin using the well-established | ||
| methodology of Khaikovich and Shashkin, widely tested and upheld in | ||
| the evaluation of uranium deposits in Kazakhstan and the former | ||
| USSR. | ||
| Good agreement, better than 10 percent, was found for eU3O8grade | ||
| composites calculated by CPM from the O1 digital printouts and | ||
| grade-composites calculated by Sirotenko for the same intervals. This | ||
| provides confidence in the quality of gamma log data. | ||
| Verification | The verification of significant intersections by either independent or | Significant uranium intersections for the four re-logged NQ holes were |
| of sampling | alternative company personnel. | verified by geological personnel from the Uranium Resources |
| and assaying | The use of twinned holes. Documentation of primary data, data entry procedures, data |
Company (URC), Beijing, China; URC is the technical arm of the China General Nuclear Power Corporation (CGNPC), the major |
| verification, data storage (physical and electronic) protocols. | shareholder of Energy Metals Ltd. | |
| Discuss any adjustment to assay data. | Two holes were probed twice with the O1 gamma probe as a | |
| duplicate check and one hole was probed over its entire length with | ||
| both the L1 and O1 probes as a check for internal consistency. In | ||
| both cases the results were found to be in good agreement | ||
| No twinned holes are available from the historical data set (see | ||
| comments in Section 3). | ||
| Historical data including paper gamma and lithological logs were | ||
| stored in a series of archive boxes in Energy Metals library. The data | ||
| is a complete record of exploration works conducted in the period | ||
| 1974 to 1981. | ||
| No adjustments were made to eU3O8assay data other than the | ||
| standard reprocessing (deconvolution) discussed above. | ||
| Location of | Accuracy and quality of surveys used to locate drill holes (collar and | Hole collar locations of which there are 110 were determined using |
| data points | down-hole surveys), trenches, mine workings and other locations | three independent data-sets. The primary data-set comprised CPM’s |
| used in Mineral Resource estimation. | original exploration drill hole plans, which were scanned at high | |
| Specification of thegrid system used. | resolution and carefully georeferenced to allow extraction of hole |
18
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Quality and adequacy of topographic control. | coordinates. The drill collars locations were compared with drill sites | |
| identifiable from Google Earth (GE) imagery and with the same drill | ||
| sites converted from CPM’s original local coordinate grid. Agreement | ||
| between the three data-sets was found to be excellent and the | ||
| accuracy of the collar coordinates is judged to be better than +/-10m | ||
| in the horizontal plane. | ||
| The coordinates are located on the MGA94 grid, Zone 52 using the | ||
| GDA94 datum (see Annexure 1). | ||
| In the vertical plane topographic control was provided by a digital | ||
| elevation model generated from NatMap topographic data, local | ||
| benchmark data supplied by the NT DIPE, GE imagery and original | ||
| CPM RL survey data. Accuracy is judged to be at least +/-1m in the | ||
| vertical plane. | ||
| Most holes were drilled vertically and as no surveys were undertaken | ||
| were assumed to have remained vertical to the end of hole. Several | ||
| angle holes were drilled but no historical downhole surveys are | ||
| available; in these cases the starting azimuth was assumed to be | ||
| constant until end of hole; as most holes were short, <120m, this is | ||
| considered to be a reasonable assumption. | ||
| Data spacing | Data spacing for reporting of Exploration Results. |
The Karins deposit was drilled on lines with a nominal 250m spacing |
| and | Whether the data spacing and distribution is sufficient to establish the | (eastings); within mineralised zones drilling was infilled to 25 to 50m |
| distribution | degree of geological and grade continuity appropriate for the Mineral | spacing (eastings). Limited down-dip drilling was undertaken on |
| Resource and Ore Reserve estimation procedure(s) and | panels with 100m step-outs. | |
| classifications applied. | Energy Metals and consultants CSA Global consider the spacing | |
| Whether sample compositing has been applied. | sufficient to establish continuity of geology and grade for the | |
| purposes of estimation of an inferred mineral resource at Karins. | ||
| Downhole gamma logs were measured at 10cm spacing and were | ||
| composited as discussed in Annexure 2 for resource reporting | ||
| purposes. | ||
| Orientation | Whether the orientation of sampling achieves unbiased sampling of | Several investigations have shown that Bigrlyi-style (tabular stratiform |
| of data in | possible structures and the extent to which this is known, considering | sandstone-hosted) uranium mineralisation exhibits no significant |
| relation to | the deposit type. | structural control. Mineralisation is controlled by physical and |
| geological structure |
If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. |
chemical characteristics of the host rock such as permeability and redox state and is influenced by primary depositional and sedimentological features. |
| The deposit occurs in shallowly dipping beds and was sampled by | ||
| vertical drill holes; downhole gamma probe data was subsequently | ||
| corrected for mineralised zone boundaryeffects bydeconvolution, |
19
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| therefore there is no bias of sampling related to orientation of | ||
| mineralised zones. | ||
| Sample | The measures taken to ensure sample security. | Not applicable. |
| security | ||
| Audits or | The results of any audits or reviews of sampling techniques and data. | No audits or reviews were conducted, however, the historical gamma |
| reviews | probe data has been verified to an acceptable standard. |
Section 2 Reporting of Exploration Results
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral | Type, reference name/number, location and ownership including | The Karins Deposit is located on tenement applications MLN1952 |
| tenement | agreements or material issues with third parties such as joint | (Mineral Lease North) and MCS318-328 (Mineral Claim South) which |
| and land | ventures, partnerships, overriding royalties, native title interests, | are part of a joint venture between Energy Metals Ltd (53.3%), |
| tenure status | historical sites, wilderness or national park and environmental | Paladin Energy Ltd (41.7%) and Southern Cross Exploration (5%). |
| settings. | Energy Metals is the operator of the Joint Venture. | |
| The security of the tenure held at the time of reporting along with any | Tenement application EL24462, which is 100% Energy Metals | |
| known impediments to obtaining a licence to operate in the area. | owned, surrounds the Karins Deposit and covers along-strike | |
| geological units to the east, but does not contain any known mineral | ||
| resources at present. | ||
| Mineral Claims (such as MCS318-328) are considered_non-compliant_ | ||
| titles_under the Northern Territory’s current_Mineral Titles Act(the | ||
| Act); such applications remain in force under transitional provisions | ||
| until they are transitioned to an alternative suitable title under the Act. | ||
| The exact areas of Mineral Leases and Mineral Claims in the | ||
| Northern Territory, including MLN1952 and MCS318-328, are subject | ||
| to survey of their boundary and datum pegs. | ||
| The exploration licence applications are all located on Aboriginal | ||
| freehold land granted in 1988 under the_Aboriginal Land Rights_ | ||
| (Northern Territory) Act 1976(the ALRA). The land was formerly part | ||
| of the Mount Allan pastoral lease and is now held by the Yalpirakinu | ||
| Aboriginal Land Trust. | ||
| Under the ALRA, access to and future grant of titles encroaching on | ||
| Aboriginal Freehold land (including MLN1952, MCS318-328 and | ||
| ELA24462) requires an agreement with traditional owners and their | ||
| representatives the Central Land Council. At present no agreement | ||
| exists. |
20
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| EME next has an opportunity to negotiate an exploration agreement | ||
| for EL24462 from 7 December 2015 when the tenement is released | ||
| from ALRA moratorium. | ||
| Grant of Mineral Leases for uranium in the NT (such as MLN1952) | ||
| are subject to Federal Government approval. | ||
| Exploration | Acknowledgment and appraisal of exploration by other parties. | All the exploration data reported here is the result of drilling programs |
| done by | undertaken by Central Pacific Minerals (CPM) in the period 1974- | |
| other parties | 1981. Energy Metals acquired CPM’s interest in the project in 2005 together with all the historical data including historical drill core. |
|
| Geology | Deposit type, geological setting and style of mineralisation. | Karins is a Bigrlyi–style, tabular, stratiform, sandstone-hosted |
| uranium-vanadium deposit of Carboniferous age located in the north | ||
| central Ngalia Basin (NT). Refer to Figure 1. | ||
| Drill hole | A summary of all information material to the understanding of the | Refer to Annexure 1 and Annexure 2. |
| Information | exploration results including a tabulation of the following information | |
| for all Material drill holes: | ||
o easting and northing of the drill hole collar |
||
o elevation or RL (Reduced Level – elevation above sea level in |
||
| metres) of the drill hole collar | ||
o dip and azimuth of the hole |
||
o down hole length and interception depth |
||
o hole length. |
||
| If the exclusion of this information is justified on the basis that the | ||
| information is not Material and this exclusion does not detract from | ||
| the understanding of the report, the Competent Person should clearly | ||
| explain why this is the case. | ||
| Data | In reporting Exploration Results, weighting averaging techniques, | Exploration results, i.e. mineralised intercepts, are reported as |
| aggregation | maximum and/or minimum grade truncations (eg cutting of high | equivalent U3O8values (eU3O8) from processed gamma logs. For |
| methods | grades) and cut-off grades are usually Material and should be stated. | reporting purposes in Annexure 2, gamma log intersections have |
| Where aggregate intercepts incorporate short lengths of high grade | been composited from 10cm deconvolved eU3O8values. A cut-off | |
| results and longer lengths of low grade results, the procedure used | grade of 100ppm U3O8has been used with a minimum thickness of | |
| for such aggregation should be stated and some typical examples of | 0.3m, a maximum internal dilution of 0.3m and no external dilution. A | |
| such aggregations should be shown in detail. | REF value of 1 was applied, i.e. U3O8/ eU3O8= 1. Results are | |
| The assumptions used for any reporting of metal equivalent values | reported in Annexure 2. | |
| should be clearly stated. | ||
| Relationship | These relationships are particularly important in the reporting of | Based on geological mapping work by CPM geologists and structural |
| between | Exploration Results. | measurements of drill core, beds are shallowly dipping between 15 |
| mineralisatio | If the geometry of the mineralisation with respect to the drill hole | and 22 degrees. Most holes have been drilled vertically and true |
21
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| n widths and | angle is known, its nature should be reported. | widths of intersections are approximately 95% of the reported |
| intercept | If it is not known and only the down hole lengths are reported, there | downhole widths. |
| lengths | should be a clear statement to this effect (eg ‘down hole length, true _width not known’). _ |
|
| Diagrams | Appropriate maps and sections (with scales) and tabulations of | Refer to Figures 2 to 5 in the body of the text. |
| intercepts should be included for any significant discovery being | ||
| reported These should include, but not be limited to a plan view of | ||
| drill hole collar locations and appropriate sectional views. | ||
| Balanced | Where comprehensive reporting of all Exploration Results is not | All results have been reported. |
| reporting | practicable, representative reporting of both low and high grades | |
| and/or widths should be practiced to avoid misleading reporting of | ||
| Exploration Results. | ||
| Other | Other exploration data, if meaningful and material, should be reported | The recovery of vanadium is not considered an economic proposition |
| substantive | including (but not limited to): geological observations; geophysical | for Bigrlyi-style deposits at present. |
| exploration data |
survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, |
|
| groundwater, geotechnical and rock characteristics; potential | ||
| deleterious or contaminating substances. | ||
| Further work | The nature and scale of planned further work (eg tests for lateral | No further work is planned until the mineral titles covering the deposit |
| extensions or depth extensions or large-scale step-out drilling). | are granted. | |
| Diagrams clearly highlighting the areas of possible extensions, | ||
| including the main geological interpretations and future drilling areas, | ||
| provided this information is not commercially sensitive. |
Section 3 Estimation and Reporting of Mineral Resources
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Database | Measures taken to ensure that data has not been corrupted by, for | Data used in the Mineral Resource estimate was sourced from |
| integrity | example, transcription or keying errors, between its initial collection | original hardcopy. Hardcopy data was converted to digital format and |
| and its use for Mineral Resource estimation purposes. | collated, tabulated & verified by several persons before being | |
| Data validation procedures used. | validated upon importation into EME’s Geobank database. Resource | |
| consultants CSA were provided with a validated Micromine database | ||
| by EME. Relevant tables from the database were exported to | ||
| Micromine .DAT format for import into Micromine 2014 software for | ||
| use in the Mineral Resource estimationprocedure. |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Validation of the imported data included checks for missing, duplicated | ||
| and/or incorrectly recorded collar locations, survey data, sample data, | ||
| gamma log data & lithological log data. | ||
| Original historical gamma logs were reprocessed and deconvolved to | ||
| yield eU3O8(ppm) values which correlated with historical digital print- | ||
| out information stored in EME’s archives. The average difference is | ||
| +/-5%foreU3O8 grades and+/-8%forgrade-thicknesses ofeU3O8. | ||
| Site visits | Comment on any site visits undertaken by the Competent Person and | No site visits were undertaken by the Competent Person (Resource |
| the outcome of those visits. | Estimation) or CSA staff. | |
| If no site visits have been undertaken indicate why this is the case. | CSA has relied on Energy Metals for all data regarding the deposits, | |
| and giventhe current stage ofthe project, considers this appropriate. | ||
| Geological | Confidence in (or conversely, the uncertainty of the geological | There is a reasonable level of confidence in the geological |
| interpretation | interpretation of the mineral deposit. | interpretation of the Karins deposit. The geology is traceable and |
| Nature of the data used and of any assumptions made. | reasonably continuous between drill holes and sections. Geological | |
| The effect, if any, of alternative interpretations on Mineral Resource | controls such as the dip of the sedimentary rocks have been used to | |
| estimation. | constrain the extrapolation of mineralisation within stratigraphic | |
| The use of geology in guiding and controlling Mineral Resource | bounds. It is recommended in future exploration programs that several | |
| estimation. | holes are “twinned” to validate the historical data and a more detailed | |
| The factors affecting continuity both of grade and geology. | estimation of the Radioactive Equilibrium Factor (REF) be undertaken. It is further recommended that the possibility of in-situ recovery of the |
|
| uranium at the Karins deposit be investigated; this would include | ||
| hydrogeological test work and laboratory leaching tests. More exploration | ||
| work is needed along the southern flank of the deposit, i.e. down-dip of | ||
| currently known mineralised bodies. | ||
| Geological structure and gamma logging have formed the basis for | ||
| the geological interpretation. The Radioactive Equilibrium Factor (REF) | ||
| is assumed to be 1 based on comparison of closed can gamma and | ||
| chemical assay measurements from 17 samples. | ||
| Further work may be required to better define the geometry and limits | ||
| of the mineralisation, particularly with depth, but no significant | ||
| downside changes to the currently interpreted mineralised volume are | ||
| anticipated. | ||
| Mineralisation is primarily concentrated within sandstones between | ||
| silt/claystone lenses & interlayers that form lower and upper | ||
| confining layers. A zone of oxidation is developed at the upper part | ||
| of the deposit. Mineralised host sedimentary rocks are covered by | ||
| <5m of alluvial/aeolian sediments. | ||
| Grade continuity is controlled by redox boundaries within sandstones | ||
| and siltstones;regionallythe deposits are hosted alongthe northern |
23
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| margin of the Ngalia Basin, which is an elongate intracratonic | |||
| depression about 300km long (east-west) and 40km wide (north- | |||
| south) on average. This basin is filled with late Proterozoic to | |||
| Palaeozoic aged sedimentary rocks, predominantly | |||
| continental/marine arkosic sandstone, and Neoproterozoic glacigene | |||
| deposits and quartzite. | |||
| Dimensions | The extent and variability of the Mineral Resource expressed as | | Mineralisation is stratiform in nature but is variably distributed |
| length (along strike or otherwise), plan width, and depth below | along strike and at depth due to the probable epigenetic genesis of | ||
| surface to the upper and lower limits of the Mineral Resource. | the deposit. The dimensions of the main Karins ore bodies are | ||
| approximately 3.7km of strike length with an average plan width of | |||
| 150m and maximum modelled plan width of 350m. The total strike | |||
| length of the Karins deposit is some 5.8km overall. Stratigraphy & | |||
| mineralisation dips between 15 and 22 degrees. The mineralised | |||
| interval varies between 0.2m to 6.1m averaging 1.0m. The model | |||
| extends from 2m below surface to 120 metres below surface. | |||
| Estimation | The nature and appropriateness of the estimation technique(s) | | Gamma logging has been used for the definition of mineralised |
| and | applied and key assumptions, including treatment of extreme grade | intervals and interpretation (wireframing) of mineralised bodies. The | |
| modelling | values, domaining, interpolation parameters and maximum distance | REF is assumed to be 1. The deposit has been separated into zones | |
| techniques | of extrapolation from data points. If a computer assisted estimation | of predominantly oxidised mineralisation (carnotite) and primary | |
| method was chosen include a description of computer software and | reduced mineralisation (uraninite). The model consists of 23 | ||
| parameters used. | mineralised domains as defined by the wireframe model. | ||
| The availability of check estimates, previous estimates and/or mine | Grade estimation was calculated by the Inverse Distance Weighted | ||
| production records and whether the Mineral Resource estimate takes | Squared method (IDW2) using Micromine 2014 software in a | ||
| appropriate account of such data. | flattened model to horizontal surface. Omni directions and downhole | ||
| The assumptions made regarding recovery of by-products. | semivariograms have been used for the definition of the distance of | ||
| Estimation of deleterious elements or other non-grade variables of | interpolation. No top cutting of extreme grade values was | ||
| economic significance (eg sulphur for acid mine drainage | undertaken. The number of samples within the mineralised | ||
| characterisation). | wireframes for each deposit was generally too small to establish what | ||
| In the case of block model interpolation, the block size in relation to the average sample spacing and the search employed. Any assumptions behind modelling of selective mining units. Any assumptions about correlation between variables. Description of how the geological interpretation was used to control the resource estimates. |
|
constitutes an extreme grade value. No previous estimates have been completed for this deposit and no mining has taken place. No assumptions have been made regarding recovery of by- products. No other elements were estimated. |
|
| Discussion of basis for using or not using grade cutting or capping. | | The block model was constructed using a 5mE x 5mN x 0.5mRL | |
| The process of validation, the checking process used, the comparison | parent block size, with sub-celling to 4mE x 4mN x 2mRL for | ||
| of model data to drill hole data, and use of reconciliation data if | domain volume resolution. The parent cell size was chosen on the | ||
| available. | basis of the general morphology of mineralised bodies and in order to | ||
| avoid thegeneration of unrealisticallylarge blocks. The sub-celling |
24
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| size was chosen to maintain the resolution of the mineralised bodies. | |||
| The sub-cells were optimised in the models where possible to form | |||
| larger cells. | |||
| | The search ellipse radii were determined from evaluation of the | ||
| exploration drill hole distribution due to the low ranges of | |||
| semivariograms (low variable mineralisation). Omnidirectional | |||
| semivariograms were generated with a range of 90m for the | |||
| Northings & Eastings, and downhole semivariograms were | |||
| generated with a range of 4m. The first search radii were 10 x 10 | |||
| x 1m, second 25 x 25 x 2m, third 60 x 60 x 2.67m then 90 x 90 x | |||
| 4m. The model cells that did not receive grades from the first | |||
| runs were then estimated using radii incremented by the 90 x 90 | |||
| x 4m. | |||
| | No selective mining units were assumed in this estimate. | ||
| | There is a positive correlation between eU3O8and V2O5for the | ||
| oxidised mineralised bodies. | |||
| | Geological boundaries were used to guide the interpretation of | ||
| mineralised lenses. Specifically, mineralisation is interpreted to occur | |||
| along redox boundaries within the shallow dipping 20° Mt Eclipse | |||
| Sandstone. Mineralised bodies have been separated into oxidised & | |||
| primary reduced facies. Many profiles contain one drillhole only. | |||
| Grade envelopes at 100ppm eU3O8were defined for interpretation | |||
| purposes. | |||
| | A 200ppm eU3O8cut-off grade was applied to mineralisation inside | ||
| envelopes. No top cuts have been applied at this stage. | |||
| | Validation of the block model consisted of a comparison between the | ||
| block model volume and the wire-framed volumes. Grade estimates | |||
| were validated by visual comparison with the drill data. No | |||
| reconciliation data is available at this earlystage of theproject. | |||
| Moisture | Whether the tonnages are estimated on a dry basis or with natural | | The tonnages are estimated on a dry basis. |
| moisture, and the method of determination of the moisture content. | |||
| Cut-off | The basis of the adopted cut-off grade(s) or quality parameters | | A cut-off grade of 100ppm U3O8has been used for interpretation and |
| parameters | applied. | 200ppm U3O8for resource estimation modelling. Based on CSA’s | |
| experience with this type of deposit; this is considered a reasonable | |||
| cut-off which could result in eventual economic extraction. | |||
| Mining | Assumptions made regarding possible mining methods, minimum | | At this stage of resource development it is assumed that mining |
| factors or | mining dimensions and internal (or, if applicable, external) mining | would be by open pit methods. Future hydrogeological investigations | |
| assumptions | dilution. It is always necessary as part of the process of determining | and leaching tests would be useful in determining whether solution | |
| reasonableprospects for eventual economic extraction to consider | miningmaybepossible. |
25
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| potential mining methods, but the assumptions made regarding | |||
| mining methods and parameters when estimating Mineral Resources | |||
| may not always be rigorous. Where this is the case, this should be | |||
| reported with an explanation of the basis of the mining assumptions | |||
| made. | |||
| Metallurgical | The basis for assumptions or predictions regarding metallurgical | | Metallurgical testwork is required to determine if the deposit is |
| factors or | amenability. It is always necessary as part of the process of | amenable to solution mining and/or heap leaching. There is a | |
| assumptions | determining reasonable prospects for eventual economic extraction to | requirement for a certain level of natural permeability and for | |
| consider potential metallurgical methods, but the assumptions | mineralisation to occur below the watertable if in-situ recovery is to be | ||
| regarding metallurgical treatment processes and parameters made | considered. Hydrological pumping cluster tests would need to be | ||
| when reporting Mineral Resources may not always be rigorous. | undertaken if the deposit is found to be amenable to in-situ extraction | ||
| Where this is the case, this should be reported with an explanation of | processes. | ||
| the basis of the metallurgical assumptions made. | |||
| Environmen- | Assumptions made regarding possible waste and process residue | | No detailed assumptions regarding possible waste and process |
| tal factors or | disposal options. It is always necessary as part of the process of | residue options have been made at this early stage. | |
| assumptions | determining reasonable prospects for eventual economic extraction to | ||
| consider the potential environmental impacts of the mining and | |||
| processing operation. While at this stage the determination of | |||
| potential environmental impacts, particularly for a greenfields project, | |||
| may not always be well advanced, the status of early consideration of | |||
| these potential environmental impacts should be reported. Where | |||
| these aspects have not been considered this should be reported with | |||
| an explanation of the environmental assumptions made. | |||
| Bulk density | Whether assumed or determined. If assumed, the basis for the | | Bulk density testing was carried out on both mineralised & un- |
| assumptions. If determined, the method used, whether wet or dry, the | mineralised drill core from the Karins deposit. Energy Metals supplied | ||
| frequency of the measurements, the nature, size and | CSA with a table comprising 12 bulk density determinations from two | ||
| representativeness of the samples. | drill holes. The rock types found at Karins include sub-arkosic | ||
| The bulk density for bulk material must have been measured by | sandstone and shale. | ||
| methods that adequately account for void spaces (vugs, porosity, | | Density estimates were obtained using the Archimedes method on | |
| etc), moisture and differences between rock and alteration zones | the selected core samples. The balance was calibrated using two | ||
| within the deposit. | standard weights. An oven was used to dry the core to evaporate | ||
| Discuss assumptions for bulk density estimates used in the | excess moisture and hairspray was used to seal the exterior to | ||
| evaluation process of the different materials. | account for natural porosity (voids) when necessary. Test work to | ||
| date has shown that there are no significant density differences due | |||
| to sample porosity or alteration type. | |||
| | The same average bulk density of 2.48 t/m3has been applied to all | ||
| material in the models. | |||
| Classification | The basis for the classification of the Mineral Resources into varying |
| CSA has considered several factors in the classification of the |
| confidence categories. | Mineral Resources such as search ellipse dimensions, geological |
26
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Whether appropriate account has been taken of all relevant factors (ie | data and exploration drill hole grids. The Karins deposit has been | ||
| relative confidence in tonnage/grade estimations, reliability of input | classified as Inferred-category Mineral Resources due to: limited data | ||
| data, confidence in continuity of geology and metal values, quality, | for REF definition, need to verify historical gamma logging by drilling | ||
| quantity and distribution of the data). | twin holes, and the fact that many exploration sections are based on | ||
| Whether the result appropriately reflects the Competent Person’s | single drill holes only. | ||
| view of the deposit. | | The Inferred classification has taken into account all available | |
| geological and sampling information, and the classification level is | |||
| considered appropriate for the current stage of the project. | |||
| | The Mineral Resource estimate appropriately reflects the views of the | ||
| Competent Persons. | |||
| Audits or | The results of any audits or reviews of Mineral Resource estimates. | | No audits of the Mineral Resource estimate has been undertaken at |
| reviews | this time. | ||
| Discussion of | Where appropriate a statement of the relative accuracy and |
| The relative accuracy of the Mineral Resource estimate is reflected in |
| relative | confidence level in the Mineral Resource estimate using an approach | the reporting of the Mineral Resource to Inferred classification as per | |
| accuracy/ | or procedure deemed appropriate by the Competent Person. For | the guidelines of the 2012 JORC Code. | |
| confidence | example, the application of statistical or geostatistical procedures to | | The resource statement refers to global estimation of tonnes and |
| quantify the relative accuracy of the resource within stated confidence | grade. | ||
| limits, or, if such an approach is not deemed appropriate, a qualitative | |
No production data is available for comparison. | |
| discussion of the factors that could affect the relative accuracy and | |||
| confidence of the estimate. | |||
| The statement should specify whether it relates to global or local | |||
| estimates, and, if local, state the relevant tonnages, which should be | |||
| relevant to technical and economic evaluation. Documentation should | |||
| include assumptions made and the procedures used. | |||
| These statements of relative accuracy and confidence of the estimate | |||
| should be compared withproduction data, where available. |
27