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HAWSONS IRON LTD — Capital/Financing Update 2016
Dec 19, 2016
65053_rns_2016-12-19_6f4c2e96-3a77-4d6c-8da0-a9062b63ad91.pdf
Capital/Financing Update
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ASX ANNOUNCEMENT
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We find it. We prove it. We make it possible.
ABN : 63 095 117 981 ASX : CAP
20 December 2016
Hawsons Iron Project resource upgrade on track
Highlights
-
Completion of a 5,963m reverse circulation drilling programme comprising 20 holes directed to a JORC* mineral resource category upgrade of the existing resource to enable support of prefeasibility study due Q2 2017
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Potential for successful mineral resource upgrade as observed geology, preliminary assays meet expectations
-
Analyses received from first 12 holes and showed 10 intersections between 105-200m thick and intersection of a proximal new mineralised zone in the north-east
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Best intersection of 200m at 16.8% magnetite mass recovery at 69.9%Fe concentrate grade in RC16BRP062
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Weighted average magnetite mass recovery and concentrate quality of significant intersections returned so far is 15.2% and 69.9%Fe, consistent with or better than current resource (14.9% at 69.7%Fe)
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Confidence in mining and processing plans increased as characteristics so far consistent with expectations
-
Detailed analysis of geology and analytical results underway
* Joint Ore Reserves Committee
Level 6, 345 Ann Street Brisbane Qld 4000
PO Box 10919, Adelaide St Brisbane Qld 4000
e-mail: [email protected]
For further information contact: Quentin Hill Managing Director Phone: 07 3220 2022
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Emerging iron producer Carpentaria Exploration Limited (ASX:CAP) announced today positive results from a recent drilling programme at its Hawsons Iron Project. The programme, aided by the Company’s recent successful capital raising, is designed to support a resource upgrade and planned new prefeasibility study for the Company’s flagship project near Broken Hill.
Drilling comprising 5,963m in 20 reverse circulation ( RC ) holes was completed on Friday and included additional drilling in the Fold prospect (Figure 1). The drilling targets upgrading significant portions of the resource from JORC Inferred Resource to JORC Indicated Resource which, if achieved would boost confidence in the project’s economic viability[1] . A resource upgrade is set to form part of a new prefeasibility study for Hawsons, scheduled for completion in the second quarter of 2017.
Carpentaria’s Managing Director Quentin Hill said the early results indicated the resource upgrade programme is on track for one of Australia’s highest quality emerging iron projects.
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ASX ANNOUNCEMENT
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“We have received results from the first twelve holes, and so far the geological interpretation is proving very robust and the analytical results so far are in line with our expectations. This gives us confidence we can achieve a significant upgrade from Inferred Resources to Indicated Resources,” Mr Hill said.
“Should this be achieved, it is planned that a new resource estimate will support a revised mine plan for use in a prefeasibility study for Hawsons, due in quarter two next calendar year.”
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Targeted resource upgrade area
Sections shown in
Figures 2 and 3
Fold
prospect
Geophysics collected on earlier holes
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Figure 1 – Drill hole location plan
Drilling programme
The work programme carried out, together with results to date, have improved the potential for a resource upgrade due to the following:
-
Drill spacing across large areas of the deposit has tightened from a nominal 400m x 200m to a nominal 200m x 200m in areas of existing Inferred Resource;
-
Initial analysis of observed geological data and analytical results received to date correlate closely with the existing interpretation, demonstrating that interpolating across significant distances can be done with some confidence;
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Downhole geophysical data was collected from over 80% of the mineralised parts of this drill programme and also from two earlier drill holes. This data type was integral to the classification of existing Indicated Resources.
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ASX ANNOUNCEMENT
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The confidence in some of the deposit’s key competitive advantages is also increasing as extra drilling supports earlier mining and processing assumptions. This is because:
-
there is no expected material change in mining characteristics, including the exceptional mining widths of circa 500m and the depth of overburden as the geological interpretation so far appears robust;
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Davis Tube Recovery ( DTR ) tests were done for every fresh rock interval drilled, consistent with earlier drilling programmes;
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concentrate quality results received to data are outstanding and consistent with expectations. Pilot plant work (ASX Announcement 14 October 2015) has shown Hawsons can produce amongst the finest quality concentrate in the world, known as Hawsons Supergrade, at 70.3%Fe. While the resource grade determined by DTR concentrate analysis is currently 69.7% Fe, the test work included an additional upgrade stage without materially affecting recoveries.
The drilling has provided some analytical data for Unit 1 and confirmed its presence in the north central part of the deposit, where it has previously been ignored. The magnetite mass recovery and concentrate grades are above the resource cutoff grades, potentially extending the known resource limits (Figures 1 and 3).
Analysis of the data is continuing, and a further update will be provided when the remaining results are received.
Table 2 shows the significant intersections and Figures 2 and 3 are representative cross sections of the results.
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New mineralisation, Unit 1
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Figures 2 and 3 Example cross sections
Commenting on the latest results, Mr Hill said: “Hawsons is set to benefit from its favourable location near Broken Hill and superior access to infrastructure, putting it first in the queue for development among the next wave of iron projects. Having already attracted support from international blue-chip buyers across Asia and the Middle East in the Hawsons Supergrade product, Carpentaria is now focused on further upgrading Hawsons to secure a strategic development partner, complete a bankable feasibility study and launch production at this valuable new project for Broken Hill and Australia.”
Background
Under the JORC Code, 2012 Edition, an Indicated Mineral Resource is that part of a Mineral Resource for which quantity, grade (or quality), densities, shape and physical characteristics are estimated with sufficient confidence to allow the
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ASX ANNOUNCEMENT
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application of Modifying Factors in sufficient detail to support mine planning and evaluation of the economic viability of the deposit.
An Indicated Mineral Resource has a higher level of confidence than an Inferred Mineral Resource and is the dominant resource in the early mine plan of any prefeasibility study under the Code.
At Hawsons, iron distribution is largely controlled by sedimentary processes resulting in thick, widespread sequences of magnetite iron ore. Being magnetite, magnetic surveys are reliable predictors of iron ore distribution. These deposit characteristics mean that drill spacing to achieve the confidence level of Indicated Resources is wider than a typical metal deposit and closer in character to that of a coal resource.
About Hawsons Iron Project
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The Hawsons Iron Project joint venture (Carpentaria 64%, Pure Metals P/L 36%) is currently undertaking development studies based on the low cost, long term supply of a high grade, ultralow impurity iron concentrate to a growing premium iron market, including the direct reduction market.
The project has a clear technical and permitting pathway. It is located 60km southwest of Broken Hill, an ideal position for mining operations with existing power, rail and port infrastructure available for a conceptual 10 Mtpa start-up operation. A mining lease application has been lodged.
The project’s soft rock is different from traditional hard rock magnetite and allows a very different approach to the typical magnetite mining and processing challenges (both technical and cost-related). The soft rock enables simple liberation of a Supergrade magnetite product without complex and expensive processing methods.
The Company is targeting the growing premium high grade Figure 4 Location of Hawsons Iron Project and Port Pirie product market, both pellets and pellet feed, which is separate to the bulk fines market, and believes its targeted cost structure is very competitive and profitable at consensus long-term price forecasts for this sector. It has secured offtake intent from blue chip companies Bahrain Steel, Emirates Steel, Formosa Plastics, Mitsubishi RtM and Gunvor.
The project is underpinned by Inferred and Indicated Resources totalling 1.8 billion tonnes at 15% mass recovery for 263 million tonnes of concentrate grading at 69.7% Fe. The Company confirms that it is not aware of any new data that materially affects this resource statement since the first public announcement and that all material assumptions and technical parameters underpinning the resource estimates continue to apply and have not materially changed since first reported (ASX Announcement 26 March 2014 and Table 2).
| concentrate grades | concentrate grades | concentrate grades | concentrate grades | concentrate grades | Contained | |||
|---|---|---|---|---|---|---|---|---|
| Magnetite | ||||||||
| Billion Tonnes | ||||||||
| Concentrate million | ||||||||
| Category | (cut off 12% mass recovery) |
mass recovery (%) |
Fe% | **SiO2% ** | **Al2O3% ** | P% | LOI% | tonnes |
| Inferred | 1.55 | 14.7 | 69.6 | 2.9 | 0.20 | 0.004 | -3.0 | 228 |
| Indicated | 0.22 | 16.2 | 69.8 | 2.8 | 0.20 | 0.005 | -3.0 | 35 |
| Total | 1.77 | 14.9 | 69.7 | 2.9 | 0.20 | 0.004 | -3.0 | 263 |
Table1 JORC compliant resources- Hawsons Iron Project
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ASX ANNOUNCEMENT
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| Hole ID | From (m) | To (m) | Thickness (m) |
Magnetite Mass Recovery % (DTR) |
Head Fe % |
Concentrategrades | Concentrategrades | Concentrategrades | Concentrategrades | Concentrategrades | Concentrategrades | comment |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fe% | SiO2 % | Al2O3 % | P % | S % | LOI | |||||||
| RC16BRP060 | 69 | 241 | 172 | 13.0 | 17.9 | 70.2 | 2.02 | 0.16 | 0.001 | 0.003 | -2.94 | |
| incl incl |
116 211 |
186 236 |
70 25 |
15.3 14.1 |
15.3 23.1 |
70.3 70.6 |
2.13 1.71 |
0.16 0.14 |
0.001 0.000 |
0.003 0.002 |
-3.18 -3.14 |
|
| 251 | 306 | 55 | 14.0 | 16.0 | 69.6 | 2.83 | 0.20 | 0.001 | 0.004 | -3.02 | ||
| RC16BRP061 | 79 | 234 | 155 | 15.7 | 17.0 | 69.2 | 3.25 | 0.19 | 0.003 | 0.002 | -2.94 | |
| incl | 79 | 204 | 125 | 16.9 | 18.1 | 69.2 | 3.28 | 0.18 | 0.004 | 0.003 | -2.86 | |
| 244 | 279 | 35 | 16.9 | 20.5 | 71.1 | 1.20 | 0.09 | 0.001 | -0.001 | -3.29 | ||
| RC16BRP062 | 105 | 305 | 200 | 16.8 | 19.2 | 69.9 | 2.53 | 0.17 | 0.004 | 0.000 | -3.10 | |
| incl incl |
150 240 |
275 265 |
125 25 |
17.8 18.7 |
17.5 20.7 |
69.7 70.7 |
2.85 1.71 |
0.19 0.12 |
0.004 0.003 |
0.000 -0.001 |
-3.12 -3.23 |
|
| 315 | 335 | 20 | 13.2 | 14.2 | 69.1 | 3.61 | 0.22 | 0.006 | 0.002 | -3.17 | ||
| 345 | 350 | 5 | 11.2 | 11.5 | 69.7 | 2.77 | 0.25 | 0.004 | 0.006 | -3.23 | EOH | |
| RC16BRP064 | 92 | 117 | 25 | 15.8 | 19.1 | 69.8 | 2.08 | 0.11 | 0.002 | -0.001 | -2.37 | |
| 142 | 227 | 85 | 14.9 | 16.4 | 69.3 | 3.24 | 0.16 | 0.002 | -0.001 | -3.06 | ||
| incl. | 152 | 212 | 60 | 16.5 | 17.5 | 69.3 | 3.25 | 0.16 | 0.003 | -0.001 | -3.03 | |
| 237 | 354 | 117 | 15.4 | 16.8 | 70.4 | 2.16 | 0.12 | 0.000 | -0.001 | -3.28 | EOH | |
| incl. | 297 | 354 | 57 | 17.3 | 17.1 | 70.4 | 2.12 | 0.11 | 0.000 | -0.001 | -3.31 | EOH |
| RC16BRP065 | 96 | 291 | 195 | 16.1 | 18.4 | 70.5 | 1.84 | 0.13 | 0.002 | -0.001 | -3.13 | |
| 301 | 311 | 10 | 14.3 | 18.3 | 69.3 | 3.31 | 0.18 | 0.005 | -0.001 | -3.10 | ||
| RC16BRP066 | 98 | 203 | 105 | 15.2 | 16.9 | 70.3 | 2.09 | 0.13 | 0.001 | -0.001 | -3.10 | |
| 213 | 238 | 25 | 12.5 | 21.9 | 70.5 | 2.09 | 0.12 | 0.001 | -0.001 | -3.19 | ||
| RC16BRP069 | 89 | 124 | 35 | 12.1 | 15.5 | 69.2 | 2.74 | 0.19 | 0.002 | -0.001 | -2.03 | transition zone |
| 134 | 179 | 45 | 11.0 | 13.8 | 69.7 | 2.79 | 0.16 | 0.000 | -0.001 | -3.07 | ||
| 194 | 348 | 154 | 14.9 | 19.7 | 70.6 | 1.84 | 0.12 | 0.001 | -0.001 | -3.31 | EOH | |
| incl. | 229 | 319 | 90 | 16.7 | 18.0 | 70.7 | 1.77 | 0.12 | 0.000 | -0.001 | -3.34 | |
| RC16BRP067 | 174 | 181 | 7 | 12.8 | 22.6 | 70.7 | 1.38 | 0.13 | 0.003 | -0.001 | -3.02 | EOH, abondoned |
| RC16BRP068 | 149 | 309 | 160 | 17.6 | 18.2 | 68.7 | 3.89 | 0.23 | 0.004 | -0.001 | -2.94 | |
| incl. | 219 | 279 | 60 | 19.6 | 18.4 | 68.1 | 4.55 | 0.25 | 0.005 | -0.001 | -2.87 | |
| 334 | 354 | 20 | 11.5 | 14.3 | 70.4 | 1.96 | 0.12 | 0.003 | 0.000 | -3.28 | EOH | |
| RC16BRP070 | 88 | 233 | 145 | 13.6 | 20.1 | 70.2 | 2.14 | 0.12 | 0.002 | 0.000 | -3.07 | |
| incl. incl. |
143 198 |
168 228 |
25 30 |
15.5 15.8 |
24.0 21.2 |
70.6 69.0 |
1.74 3.55 |
0.10 0.19 |
0.002 0.004 |
-0.001 0.002 |
-3.17 -2.90 |
|
| 283 | 323 | 40 | 12.2 | 14.4 | 69.1 | 3.41 | 0.19 | 0.003 | 0.005 | -3.05 | ||
| 333 | 355 | 22 | 18.7 | 20.7 | 70.0 | 2.44 | 0.16 | 0.005 | -0.001 | -3.23 | EOH | |
| RC16BRP071 | 79 | 214 | 135 | 17.3 | 19.0 | 68.5 | 4.00 | 0.16 | 0.005 | 0.000 | -2.70 | |
| incl. | 99 | 204 | 105 | 18.3 | 18.9 | 68.5 | 4.19 | 0.17 | 0.005 | 0.000 | -2.89 | |
| RC16BRP072 | 104 | 109 | 5 | 23.8 | 25.1 | 70.1 | 2.14 | 0.07 | 0.004 | -0.001 | -2.84 | |
| 119 | 184 | 65 | 13.7 | 16.2 | 70.7 | 1.35 | 0.13 | 0.002 | 0.004 | -2.91 | EOH |
Table 2 Significant intersections (10% magnetite mass recovery cut off, no more than 5m of internal dilution)
For further information please contact:
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Quentin Hill Managing Director +61 7 3220 2022
Media Enquiries
Anthony Fensom Fensom Communications +61 (0) 407 112 623
We find it. We prove it. We make it possible.
The information in this report that relates to Exploration Results, Exploration Targets and Resources is based on information evaluated by Mr Q.S. Hill who is a member of the Australian Institute of Geoscientists (MAIG) and who has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources
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ASX ANNOUNCEMENT
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and Ore Reserves (the “JORC Code”). Mr Hill is a Director of Carpentaria Exploration Ltd and he consents to the inclusion in the report of the Exploration Results in the form and context in which they appear.
| Hole ID | Hole Type |
GDA_East | GDA_North | RL | Dip | Azimuth (Grid) | Hole Depth | Assay Result Status |
|---|---|---|---|---|---|---|---|---|
| RC16BRP060 | RC | 512263 | 6413511 | 196 | -60 | 40 | 336 | Received |
| RC16BRP061 | RC | 512225 | 6413155 | 194 | -60 | 40 | 282 | Received |
| RC16BRP062 | RC | 512349 | 6413301 | 195 | -60 | 40 | 354 | Received |
| RC16BRP063 | RC | 512435 | 6413395 | 195 | -60 | 40 | 264 | Pending |
| RC16BRP064 | RC | 512532 | 6412895 | 190 | -60 | 40 | 354 | Received |
| RC16BRP065 | RC | 512670 | 6413058 | 191 | -60 | 40 | 324 | Received |
| RC16BRP066 | RC | 512845 | 6412953 | 191 | -60 | 40 | 265 | Received |
| RC16BRP067 | RC | 512659 | 6412422 | 189 | -60 | 40 | 181 | Received |
| RC16BRP068 | RC | 512770 | 6412557 | 188 | -60 | 40 | 354 | Received |
| RC16BRP069 | RC | 512904 | 6412712 | 189 | -60 | 40 | 348 | Received |
| RC16BRP070 | RC | 513019 | 6412851 | 191 | -60 | 40 | 355 | Received |
| RC16BRP071 | RC | 512322 | 6412968 | 191 | -60 | 40 | 214 | Received |
| RC16BRP072 | RC | 513243 | 6412516 | 194 | -60 | 40 | 184 | Received |
| RC16BRP073 | RC | 513064 | 6412597 | 192 | -60 | 40 | 354 | Pending |
| RC16BRP074 | RC | 513174 | 6412726 | 192 | -60 | 40 | 324 | Pending |
| RC16BRP075 | RC | 513152 | 6412375 | 193 | -60 | 40 | 312 | Pending |
| RC16BRP076 | RC | 513845 | 6412129 | 195 | -60 | 40 | 312 | Pending |
| RC16BRP077 | RC | 513952 | 6412254 | 193 | -60 | 40 | 276 | Pending |
| RC16BRP078 | RC | 514078 | 6411938 | 195 | -60 | 40 | 300 | Pending |
| RC16BRP079 | RC | 514175 | 6412053 | 193 | -60 | 40 | 270 | Pending |
Table 3 Drillhole collar data
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ASX ANNOUNCEMENT
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JORC Code, 2012 Edition – Table 1 Hawsons Iron Project
Section 1 Sampling Techniques and Data
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Sampling techniques |
Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma |
| A total of 20 drillholes were drilled by CAP. Results of 12 drillholes have been received to date. Drillholes were reverse circulation (RC) from surface. |
| sondes, or handheld XRF instruments, etc). These examples should | | All sampling was to industry standard | |
| not be taken as limiting the broad meaning of sampling. | | RC drillholes were drilled to obtain 1m samples with sample | |
| Include reference to measures taken to ensure sample representivity | compositing applied to obtain a 5m 6kg sample which was | ||
| and the appropriate calibration of any measurement tools or systems | pulverized to produce 150g aliquot for X-Ray Fluorescence (XRF) | ||
| used. | and Davis Tube Recovery (DTR) analysis. Magnetic susceptibility | ||
| Aspects of the determination of mineralisation that are Material to the | measurements and geological logging was completed for every | ||
| Public Report. | metre of every drillhole. | ||
| In cases where ‘industry standard’ work has been done this would be | | Endeavour Geophysics carried out down hole geophysical logging | |
| relatively simple (eg ‘reverse circulation drilling was used to obtain 1 | and gyroscope surveying on all drillholes. Surveys were | ||
| m samples from which 3 kg was pulverised to produce a 30 g charge | conducted on open hole. The geophysical logging consisted of | ||
| for fire assay’). In other cases more explanation may be required, | natural gamma, magnetic susceptibility, density and caliper | ||
| such as where there is coarse gold that has inherent sampling | readings. | ||
| problems. Unusual commodities or mineralisation types (eg | | CAP has a suite of documented procedures for drilling related | |
| submarine nodules) may warrant disclosure of detailed information. | activities | ||
| | Consistency of sampling method maintained. | ||
| | Samplingtechnique is considered appropriate for deposit type | ||
| Drilling techniques |
Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other |
|
Drilling was RC. RC drilling was carried out using a truck mounted Sandvik DE 840 (UDR1200) and truck mounted UDR1000. Both used 4.5 inch rods |
| type, whether core is oriented and if so, by what method, etc). | and 5 ½ inch face bits. | ||
| Drill sample recovery |
Method of recording and assessing core and chip sample recoveries and results assessed. Measures taken to maximise sample recovery and ensure |
| RC sampling done on 1m intervals into green plastic bags. Sample recoveries for RC were visually estimated by the geologist |
| representative nature of the samples. | at the time of drilling and recorded, | ||
| Whether a relationship exists between sample recovery and grade | | Because no numerical RC chip recovery data exists it is not | |
| and whether sample bias may have occurred due to preferential | possible to conclude if there is a relationship between sample | ||
| loss/gain of fine/coarse material. | recovery and mineral grade | ||
| | A hand held XRF orientation study concluded that there was no | ||
| sample bias with loss orgain of fine/coarse material. |
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ASX ANNOUNCEMENT
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| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| | Negligible wet samples in the RC drilling | ||
| Logging | Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. |
| Every RC drillhole was logged by a geologist & entered into Excel spread sheets recording; Recovery, Moisture content, Magnetic susceptibility, Oxidation state, Colour, % of Magnetite, Gangue |
| Whether logging is qualitative or quantitative in nature. Core (or | Min, Sulphide Min, Veins and Structure. Data was uploaded to a | ||
| costean, channel, etc) photography. | customised Access database. | ||
| The total length and percentage of the relevant intersections logged. | | Logging used a mixture of qualitative and quantitative codes | |
| | All RC sample metres were sub-sampled, sieved, washed and | ||
| stored in a labelled plastic chip tray. All remaining drill core after | |||
| sampling was stored in labelled plastic core trays on site. | |||
| | All relevant intersections were logged | ||
| | Geological logging was of sufficient detail to allow the creation of | ||
| a geological model. | |||
| Sub-sampling techniques |
If core, whether cut or sawn and whether quarter, half or all core taken. If non-core, whether riffled, tube sampled, rotary split, etc and |
| RC samples were composited using the riffle split method. A 1/8 split was taken from the rig every metre then composited by splitting again using a 50/50 riffle splitter. |
| and sample | whether sampled wet or dry. | | Field duplicates, blanks (washed sand) and standards we used for |
| preparation | For all sample types, the nature, quality and appropriateness of the sample preparation technique. |
| quality control measures All sampling methods and samples sizes are deemed appropriate |
| 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 assay data |
The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. |
| Pulverizing Crush the sample to 100% below 3.35 mm. Separate a sample of 150 g for pulverizing in aC125 ring |
| and | For geophysical tools, spectrometers, handheld XRF instruments, etc, | pulverizer(record weight) – DTR SAMPLE. | |
| laboratory tests |
the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc. |
Initially pulverize the 150 g sample for nominal 30 seconds – the sample is unusually soft for a ferro-silicate rock! Wet screen the DTR sample at 38 micron pressure filter and |
|
| Nature ofquality controlprocedures adopted(eg standards, blanks, | dry,screen at 1 mm to de-clumpand re-homogenize. |
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| Criteria JORC Code explanation Commentary |
Criteria JORC Code explanation Commentary |
|---|---|
| duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established. |
Record the oversize weights – if less than approximately 20 g is oversize, stop the procedure – failure. If failure - select another 150 g DTR Sample and reduce the initial pulverization time by 5 secs, repeat until initial grind pass returns greater than approximately 20 g oversize. Once achieved retain the – 38 micron undersize. Regrind only the oversize for 4 seconds of every 5 g weight of oversize. Repeat the wet screening, drying, de-clumping & weighing stages until less than 5g above 38micron remains. Ensure the remaining < 5 g oversize is returned back into the previously retained -38 micron product. Report the times and weights for each grind pass phase. Combine and homogenize all retained -38 micron aliquots and <5 g oversize –final pulverized product. Sub-sample the final pulverized product to give a 20 g feed sample forDTR workand a ~10 g sample for HEAD analysis via XRF fusion. The objective of the pulverizing procedure is to achieve a nominal P80 of approximately 25 micron for the sample. Davis Tube Recovery (DTR) Analysis Pulverizer bowl 150 ml Stroke Frequency 60/minute Stroke length – 38mm Magnetic field strength – 3000 gauss Tube Angle – 45 degrees Tube Diameter – 40mm Water flow rate – 540-590 ml/min Washing time 20 minutes Collect the concentrate in small collector (magnetic fraction) and discard tails. X-Ray Fluorescence (XRF) Assaying Head Sample Using the Head Sample, analyse byXRF fusion methodfor the following elements: Al2O3 %, As % , Ba % , CaO % , Cl % , Co % , Cr % , Cu % , Fe % , K2O % , MgO % , Mn % , Na2O % , Ni % , P % , Pb % , S % , SiO2 % , Sn % , Sr % , TiO2 %,V %,Zn %,Zr % & LOI. |
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| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| | DTR Concentrate Sample | ||
| Dry the DTR concentrate and report the weight of the | |||
| concentrate as a percentage of measured feed and report – | |||
| DTR Mass Recovery. | |||
| Analyse the concentrate by XRF fusion method for the | |||
| following elements: Al2O3 %, As % , Ba % , CaO % , Cl % , | |||
| Co % , Cr % , Cu % , Fe % , K2O % , MgO % , Mn % , Na2O | |||
| % , Ni % , P % , Pb % , S % , SiO2 % , Sn % , Sr % , TiO2 % | |||
| , V % , Zn % , Zr % & LOI. | |||
| | JH8 and KT5 magnetic susceptibility metres were using to | ||
| record magnetic susceptibility. A laboratory standard was used | |||
| each day to calibrate each metre. A Niton XL3T Gold hand help | |||
| XRF machine was used. A laboratory analysed sample was | |||
| used to calibrate for Fe. | |||
| | QAQC procedures consisted of using Field duplicates, Blanks | ||
| and Standards at a frequency of 10 per 100 samples. | |||
| | Internal QAQC measures were also undertaken by ALS. | ||
| | Samples were sent to Interteck acting as an umpire laboratory. | ||
| | Satisfaction of precision, accuracy and any lack of bias was | ||
| made by an independent consultant using control plots. | |||
| | All sampling and assay methods and samples sizes are deemed | ||
| appropriate. | |||
| Verification of | The verification of significant intersections by either independent or |
| Data was stored in an Access database |
| sampling and | alternative company personnel. The use of twinned holes. |
| Twin DD holes were used to verify the results for RC holes and the DTR performance. |
| assaying | Documentation of primary data, data entry procedures, data | | No Adjustments were made to raw assay data and lab |
| verification, data storage (physical and electronic) protocols. | certificates were presented to verify the data. | ||
| Discuss any adjustment to assay data. | |||
| Location of | Accuracy and quality of surveys used to locate drill holes (collar and | | Drill holes collars were located using a Differential GPS accuracy |
| data points | down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. |
| to less than one metre by a local surveyor. Coordinates were supplied in GDA 94 – MGA Zone 54. |
| Specification of the grid system used. | | Down hole surveys were recorded using a gyroscope due to the | |
| Quality and adequacy of topographic control. | highly magnetic nature of the deposit. | ||
| | Topographic control was collected using a high resolution | ||
| Differential GPS bya local surveyor |
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| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| | Location methods used to determine accuracy of drillhole collars | ||
| is considered appropriate | |||
| Data spacing and |
Data spacing for reporting of Exploration Results. Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral |
|
The deposit is drill at a nominal spacing of 150m to 200m in section and plan. The drill spacing was deemed adequate for the interpretation of |
| distribution | Resource and Ore Reserve estimation procedure(s) and | geological and grade continuity noting the homogeneity of the | |
| classifications applied. | deposit and style of mineralisation. | ||
| Whether sample compositing has been applied. | | Drill samples were composited at a nominal 5m | |
| Orientation of | Whether the orientation of sampling achieves unbiased sampling of | ||
| data in | possible structures and the extent to which this is known, considering the deposit type. |
| Drilling was completed at -60o, generally sub-perpendicular to the bedding, which is the primary control to the magnetite |
| relation to | If the relationship between the drilling orientation and the orientation | mineralisation. | |
| geological structure |
of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. |
| Different azimuths were used to reflect the changing strike of the beds associated with folding of the sediments and were designed to maintain the steep angle to the bedding |
| | Locally holes deviated to the right (east) with depth. | ||
| | Drilling orientations are considered appropriate with no bias. | ||
| Sample security |
The measures taken to ensure sample security. | |
All samples were stored on site under company personnel supervision until transporting to the companies Broken Hill office Intensity of magnetite mineralisation is difficult to see visually but |
| detectable usinga magnet. | |||
| Audits or | The results of any audits or reviews of sampling techniques and data. | |
Sample procedures and results were reviewed by company |
| reviews | personnel systematically. The QAQC data is being reviewed by Carpentaria staff and an external consultant. |
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary | Commentary | |
|---|---|---|---|---|
| Mineral | Type, reference name/number, location and ownership including | | The Hawsons Magnetite project is located in Western NSW, 60 | |
| tenement | and | agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, |
km southwest of Broken Hill. The deposit is 30km from the Adelaide-Sydney railway line, a main highway and a power |
|
| historical sites, wilderness or nationalpark and environmental | supply. |
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| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| land tenure | settings. | | The project is under a Joint Venture between Carpentaria |
| status | The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area. |
Exploration Ltd (CAP) and Pure Metals Pty Ltd where CAP holds 64% and Pure Metals 36% equity in the project. Pure Metals |
|
| currently manage the project. | |||
| | The project area is wholly within Exploration Licences (ELs) 6979, | ||
| 7208 & 7504 which are 100% owned by CAP. | |||
| | Licence conditions for all ELs have been met and are in good | ||
| standing. | |||
| | An application for a Mining Lease (ML) was lodged with the NSW | ||
| Trade & Investment Department in October 2013 and Carpentaria | |||
| is not aware of anyimpediments to obtaininga mininglease. | |||
| Exploration done by other |
Acknowledgment and appraisal of exploration by other parties. |
| In 1960 Enterprise Exploration Company (the exploration arm of Consolidated Zinc) outlined a number of track-like exposures of Neoproterozoic magnetite ironstone (+/- hematite) which returned |
| parties | a maximum result of 6 m at 49.1% Fe from a cross-strike channel | ||
| sample. No drilling was undertaken by Enterprise. | |||
| | CRAE completed five holes within EL 6979 seeking gold | ||
| mineralisation in a second-order linear magnetic low interpreted | |||
| to be a concealed faulted iron formation within the hinge of the | |||
| curvilinear Hawsons’ aeromagnetic anomaly. CRAE’s program | |||
| failed to locate significant gold or base metal mineralisation but | |||
| the drilling intersected concealed broad magnetite ironstone units | |||
| interbedded with diamictite adjacent to the then untested peak of | |||
| the highest amplitude segment of the Hawsons aeromagnetic | |||
| anomaly. | |||
| Geology | Deposit type, geological setting and style of mineralisation. | | The Hawsons Magnetite Project is situated within folded, upper greenschist facies Neoproterozoic rocks of the Adelaide Fold Belt. |
| The Braemar Facies magnetite ironstone is the host stratigraphy | |||
| and comprises a series of narrow, strike extensive magnetite- | |||
| bearing siltstones generally with a moderate dip (circa 45o). The | |||
| airborne magnetic data clearly indicates the magnetite siltstones | |||
| as a series of parallel, narrow, high amplitude magnetic | |||
| anomalies. Large areas of the Hawsons prospective stratigraphy | |||
| are concealed by transported ferricrete and other younger cover. | |||
| The base of oxidation due to weathering over the prospective | |||
| horizons is estimated to average 80m in depth. |
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| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| | The Hawsons project comprises a number of prospects including | ||
| the Core, Fold, T-Limb, South Limb and Wonga deposits. | |||
| Resource Estimates have been generated for the Core and Fold | |||
| areas which are contiguous. | |||
| | The depositional environment for the Braemar Iron Formation is | ||
| believed to be a subsiding basin, with initial rapid subsidence | |||
| related to rifting possibly in a graben setting eg the diamictites in | |||
| the lower part of the sequence. A possible sag phase of cyclical | |||
| subsidence followed with deposition of finer grained sediments | |||
| with more consistent, as compared to the diamictite units, bed | |||
| thicknesses, style and clast composition. The top of the Interbed | |||
| Unit marks the transition from high to lower energy sediment | |||
| deposition | |||
| | The distribution of disseminated, inclusion-free magnetite in the | ||
| Braemar Iron Formation at Hawsons is related to the composition | |||
| and nature of the sedimentary beds. The idioblastic nature of the | |||
| of the magnetite is believed due to one or more of a range of | |||
| possible processes including in situ recrystallisation of primary | |||
| detrital grains, chemical precipitation from seawater, permeation | |||
| of iron-rich metamorphic fluids associated with regional | |||
| greenschist metamorphism . Grain size generally ranges from | |||
| 10microns to 0.2mm but tends to average around the 40micron | |||
| mark. The sediment composition and grain size appear to provide | |||
| a control on the mineralisation. There is no evidence for structural | |||
| control in the form of veins or veinlets coupled with the lack of a | |||
| strong structural fabric. | |||
| | In the majority of the Core and Fold deposit the units strike south | ||
| east and dip between 45 and 65˚ to the south west. The eastern | |||
| Fold deposit comprises a relatively tight synclinal fold structure | |||
| resultingina 90o strikerotation. | |||
| Drill hole | A summary of all information material to the understanding of the | | See Table 3 for all drill hole information in this report |
| 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 |
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| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
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, | | All significant intercepts reported are downhole weighted |
| aggregation | maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated. |
averages with magnetite mass recovery (DTR) 10% bottom cut off grade with no more than 5m (one sample) of internal dilution in |
|
| methods | Where aggregate intercepts incorporate short lengths of high grade | Table 2. | |
| results and longer lengths of low grade results, the procedure used | |||
| for such aggregation should be stated and some typical examples of | |||
| such aggregations should be shown in detail. | |||
| The assumptions used for any reporting of metal equivalent values | |||
| should be clearly stated. | |||
| Relationship between |
These relationships are particularly important in the reporting of Exploration Results. If the geometry of the mineralisation with respect to the drill hole |
| Drilling was planned to intersect the geology as close to perpendicular as possible to bedding to achieve true widths. |
| mineralisation | angle is known, its nature should be reported. |
||
| widths and intercept |
If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg ‘down hole length, true width not known’). |
||
| lengths | |||
| Diagrams | Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being |
| Figure 1 -3 illustrate drill hole locations and typical section for the results reported. |
| 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 significant intercepts reported are downhole weighted |
| reporting | practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of |
averages with no top or bottom cuts. | |
| Exploration Results. | |||
| Other | Other exploration data, if meaningful and material, should be reported | |
Downhole geophysics comprises magnetic susceptibility, gamma |
| substantive | including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples – size and |
and density has been completed for a majority of the holes. This has resulted in the definition of a magnetic(and density-related) |
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| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| exploration data |
method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances. |
stratigraphy that is coincident with a chronostratigraphic interpretation. |
|
| Further work | The nature and scale of planned further work (eg tests for lateral | | Further environmental and engineering studies are planned which |
| extensions or depth extensions or large-scale step-out drilling). | will form part of the current PFS completion. | ||
| Diagrams clearly highlighting the areas of possible extensions, | |||
| including the main geological interpretations and future drilling areas, | |||
| provided this information is not commercially sensitive. |
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