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CODA MINERALS LTD — Capital/Financing Update 2021
Mar 11, 2021
64682_rns_2021-03-11_89711f5d-0c06-4603-bd38-f6f346c63fa0.pdf
Capital/Financing Update
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ASX RELEASE 12[th] March 2021
Retraction and Re-release of Release “Assay Results Confirm Huge Lateral Extent of Emmie Bluff Copper-Cobalt Mineralisation”
ASX Code: COD
Coda Minerals Limited (ASX:COD, “Coda” or “the Company”) refers to the release “Assay Results Confirm Huge Lateral Extent of Emmie Bluff Cu-Co Mineralisation” on 22[nd] February 2020.
Following consultation with ASX, the Company has retracted the release and will re-release to exclude Figure 6, a peer comparison which contains information presented that is not in accordance with ASX Compliance Update 19 September 2018 (Update no. 08/2018).
Investors should not rely on the information contained within Figure 6 of the announcement dated 22[nd] February 2020. Please refer only to the updated announcement appended below.
For, and on behalf of the Board of Coda Minerals Ltd .
6 Altona Street West Perth Western Australia, 6005
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ABN 49 625 763 957
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ASX RELEASE 22[nd] February 2021
Assay Results Confirm Huge Lateral Extent of Emmie Bluff Copper – Cobalt Mineralisation
ASX Code: COD
Highlights
-
Drilling defines major extensions of Emmie Bluff copper-cobalt mineralisation
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Enormous lateral extent of over 4.5km[2] confirmed; open in several directions
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Mineralisation extent extended by up to 830m in three directions, including new intercepts of 2.05m at 4.09% CuEq and 3.49m at 2.49% CuEq
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All holes collared within Emmie Bluff Exploration Target to date have encountered mineralisation
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Maiden JORC 2012 Compliant Mineral Resource estimate process to commence shortly
Coda Minerals Limited (ASX:COD, “Coda” or “the Company”) is pleased to provide the market with an update on its ongoing drill programme at the Emmie Bluff prospect, part of the Elizabeth Creek Copper Project (Coda 70%, Torrens Mining ASX:TRN 30%) in South Australia.
Assays received to date confirm the continuity of mineralisation, establishing significant mineralised extensions from historical holes drilled at the Emmie Bluff deposit. This drilling also provides further drill-backed evidence supporting the broad geometry and scale of the Emmie Bluff Exploration Target, first defined in 2019.
All holes drilled within the Emmie Bluff Exploration Target area during the current program encountered mineralisation. Further to this, drilling and geophysical work undertaken subsequent to the completion of these drill holes demonstrates the potential for an extension of the Emmie Bluff deposit of over 3km, with exploration drilling currently testing zones outside of the existing defined Exploration Target area.
Commenting on the results, Coda CEO Chris Stevens said: “Our programme was designed to improve confidence and coverage within the bounds of the Exploration Target itself, and we have achieved that goal. We deliberately took some big swings, placing holes hundreds of metres away from known mineralisation, and we got the results we wanted, extending the mineralisation in multiple directions.”
“Assays from this round of drilling, as well as from historical drilling intersections, confirm that the Emmie Bluff mineralisation occurs in flat-lying beds, typically 2-6m in thickness. The key to the Emmie Bluff copper-cobalt deposit is its lateral scale. The Emmie Bluff Exploration Target already covers an area over 4.5km[2] , larger than King’s Park in Perth and it has considerable scope to expand. On that scale, mineralisation of this great lateral extent adds up to an impressive whole.
“Although rarely seen in Australia, these large, laterally-extensive copper deposits commonly occur in other parts of the world. Indeed, the Kupferschiefer, one of the world’s greatest copper deposits rarely exceeds 60cm in thickness but has incredible lateral extent. Although clearly there are some differences, we believe that Kupfershiefer, located in Northern Europe, is an excellent analogue, both chemically and genetically, for Emmie Bluff.”
6 Altona Street E: [email protected] West Perth Western Australia, 6005 ABN 49 625 763 957
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Ongoing Drill Programme
Coda commenced its current drill programme at Emmie Bluff in late 2020, and has completed 14 holes to date, with two key objectives.
Coda’s first objective was to drill within the area of the Exploration Target[1] , in order to increase confidence in the continuity of the copper-cobalt mineralisation and to extend the known mineralised envelope (See Figure 1 and Figure 2 below). To date, all drillholes collared within the Exploration Target have encountered mineralisation[2] . In addition, drillholes in the northeast of the target area have extended the mineralised envelope several hundred metres in that direction, and the mineralisation remains open along most of the eastern and south eastern flanks.
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Figure 1 Implicit model of Tapley Hill Formation at Emmie Bluff showing major extensions of known mineralisation by three mineralised holes within the Emmie Bluff Exploration Target.
1 See “The Emmie Bluff Exploration Target”, below .
2 As determined by Assays (see “”, below) where available, or by geological logging and portable XRF where assays are pending.
6 Altona Street E: [email protected] West Perth Western Australia, 6005 ABN 49 625 763 957
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Detailed assay results for the first seven holes (including three mineralised holes within the Exploration Target) are included in “2021 Results”, below.
An additional key objective of the initial drill programme was to test geophysical anomalies at significant distances from the boundaries of the Exploration Target. Three holes designed to test magnetotelluric and seismic anomalism to the south of the deposit did not directly encounter Tapley Hill Formation shale. However, one of these holes (DD20EB0002) did encounter prospective stratigraphy, and a major structure which hosts vuggy copper-bearing sulphides. This structure is interpreted by Coda to be a key mineralising pathway along which, copper and cobalt metals have been introduced into the prospective host stratigraphy.
A downhole EM survey of DD20EB0002 confirmed a nearby off-hole conductor, currently interpreted as Tapley Hill Formation shale, will be drill tested in the coming weeks.[ 3 ] This drillhole demonstrates the potential to open up a 3-kilometre extension to Emmie Bluff mineralisation. It also interpreted as evidence for an entirely new mineralised zone extending into the southeast corridor.
Speaking about the future of the Emmie Bluff prospect, Mr Stevens said: “We are thrilled with the results to date and we still have some of our most exciting drillholes ahead of us, from an exploration and expansion perspective. In particular, we anticipate drilling the downhole EM anomaly at hole DD20EB0002 in the coming fortnight, potentially extending the known mineralisation several kilometres to the southeast. Given these results, Coda is increasingly confident about Emmie Bluff’s future as major new South Australian copper-cobalt project. We are now moving towards a full Resource Estimation process over the Emmie Bluff Exploration Target area. We will also continue to systematically explore opportunities for major extensions to known mineralisation. We have a track record of delivering copper-cobalt resources at Elizabeth Creek and fully intend to keep on delivering with Emmie Bluff.”
Resource Definition
Drilling is ongoing at Emmie Bluff, with a total of 14 holes having been completed to date, and 17 expected to be completed by early March 2021. So far, all criteria including assays (See Section 2021 Results below), geological logging in the field and handheld XRF results have confirmed Coda’s exploration model of the deposit, demonstrating strong continuity between holes and its enormous lateral extent, currently estimated to exceed 4.5 square kilometres.
In line with these results, Coda confirms that it has appointed a resource geologist to begin the work of upgrading the Emmie Bluff Exploration Target to JORC 2012 Mineral Resource status. This work is expected to take place in three steps:
1. Assess existing drilling and geophysical data and determine any additional work which may be required for JORC 2012 compliance. Coda estimates that this is likely to be no more than 4-6 drillholes over and above the current programme.
2. Execute any additional drilling required to complete Mineral Resource definition. Full approvals are in place for any additional drilling likely to be required, and Coda does not anticipate significant delays before undertaking this drilling, currently planned for Q2 2021.
3. If results of this work allow, generate a maiden JORC 2012 Compliant Mineral Resource estimate for the Emmie Bluff Exploration Target.
3 For full details, please see ASX Release “ Downhole EM Supports Major Extension at Emmie Bluff ” at https://www.codaminerals.com/download/downholeem-supports-major-extension-at-emmie-bluff/?wpdmdl=2137
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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Figure 2 (Above) Plan view showing the Emmie Bluff Exploration Target and the current understanding of the extent of the Tapley Hill Formation host rock embayment at Emmie Bluff, major faults and exploration/expansion corridor to the southeast. (Right, Above) Emmie Bluff Long Section West, showing an estimated 3.4 linear km of potential mineralisation. (Right, Below) Emmie Bluff Long Section West, showing and estimated 2.3 linear km of potential mineralisation. Further drilling on and around both sections is anticipated as part of the process of defining an Inferred Mineral Resource .
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6 Altona Street West Perth Western Australia, 6005
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ABN 49 625 763 957
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Figure 3 Emmie Bluff Exploration Target with preliminary implicit model of the host Tapley Hill Formation shale. Note the extension to the northeast. The area to the southeast is a potential expansion zone which will be tested by upcoming drilling.
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E: [email protected] ABN 49 625 763 957
6 Altona Street West Perth Western Australia, 6005
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2021 Results
Of the seven drillholes, three were drilled in the Exploration Target, all of which were mineralised. The remaining holes were designed to define the edges of the mineralisation, or test seismic anomalism, a process which is still ongoing. Results from the mineralised holes are summarised in Table 1, below. Collar locations can be seen in Figure 3, above.
Table 1 Emmie Bluff Drilling Results, 0.5% CuEq cutoff.
| HoleID | Results |
|---|---|
| DD20EB0001 | Not Assayed |
| DD20EB0002 | No Significant Results |
| DD20EB0003 | Not Assayed |
| DD20EB0004 | 1.75m from [email protected]% CuEq (1.45% Cu,24ppm Co and 43.81g/t Ag) |
| DD20EB0004 | 2.05m from [email protected]% CuEq (1.76% Cu,1,936ppm Co and 16.89g/t Ag) |
| DD20EB0004 | 1.51m from [email protected]% CuEq (1.62% Cu,179ppm Co and 11.88g/t Ag) |
| DD20EB0005 | 1.5m from [email protected]% CuEq (0.68% Cu,15ppm Co and 17.17g/t Ag) |
| DD20EB0005 | 1.28m from [email protected]% CuEq (0.71% Cu,156ppm Co and 5.87g/t Ag) |
| DD20EB0006 | Not Assayed |
| DD20EB0007 | 3.49m from [email protected]% CuEq (1.47% Cu,620ppm Co and 17.45g/t Ag) |
The Emmie Bluff Exploration Target
The Emmie Bluff Exploration Target was first defined in 2019, and most recently updated in 2020.[4] It consists of two layers of laterally extensive copper-cobalt-silver mineralisation at the upper and lower contacts of the Tapley Hill Formation black shale, with a combined tonnage of 46 to 77 million tonnes and an estimated grade of between 0.5 and 2.3% CuEq . The Company notes that the potential grade and tonnage is conceptual in nature and there has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource.
Table 2 Emmie Bluff Exploration Target.
| Mineralisation Area | |||||||
|---|---|---|---|---|---|---|---|
| Layer | Volume |
Tonnage | Cu | Co Range | Ag Range | Cu Eq. | |
| Thickness (m) | **(m3) ** | Range (Mt) |
Range | (%) | (%) | Range5(%) | |
| (%) | |||||||
| 1.7 - 6.1 | 14,271,000 | 28.7 – 47.8 | 0.9 - 1.6 | 0.04 - 0.06 | 11 – 19 |
1.4 – 2.3 | |
| Tapley Hill Formation | |||||||
| Upper Layer | |||||||
| 0.8 - 4.7 | 8,642,000 | 17.4 – 29.0 | 0.3 - 0.6 | 0.02 - 0.03 | 5 – 18 |
0.5 – 0.9 | |
| Tapley Hill Formation | |||||||
| Lower Layer | |||||||
| Total | 0.8 - 6.1 | 22,913,000 | 46.1 – 76.8 | 0.3 - 1.6 | 0.02 - 0.06 | 5 - 19 |
0.5 – 2.3 |
4 Please see ASX Announcement “Confirmation Statements (JORC)” (Confirmation of Exploration Target & Mineral Resource and Ore Reserve Statement) , released to the ASX on 23[rd] October 2020, for full details and Competent Person’s Statement.
5 Cu Eq = Cu % + (Co ppm*0.0012). Please see Coda Announcement “Appendix to the Annual Report 2020 – Mineral Resource and Ore Reserve Statement”, released 31/07/2020, available at https://www.codaminerals.com/wp-content/uploads/2020/08/Coda_Announcement_Resource-andReserve-statement-2020_Typeset.pdf for derivation.
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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Figure 4 Long section looking southwest through the approximate centre of the Emmie Bluff deposit. Recent (2020) drillholes are labelled in red, historical drillholes are labelled in white. Mineralisation is located at the upper and lower contacts of the Tapley Hill Formation shale, displayed in red.
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Figure 5 Emmie Bluff Exploration Target rotated 95° degrees and overlaid on top of Kings Park in Perth, WA, to demonstrate the extent of the mineralisation.
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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—
This announcement has been authorised for release by the Board of Coda Minerals Ltd For more information, please contact [email protected] Further Information:
Chris Stevens Chief Executive Officer [email protected]
Confirmatory Statement
The information is extracted from the report entitled “Confirmation Statements JORC” created on 26[th] October 2020 and is available to view on https://www.codaminerals.com/wp-content/uploads/2020/10/20201026_Coda_ASXANN_Confirmation-Statements-JORC.pdf
The company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and, in the case of estimates of Mineral Resources or Ore Reserves, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. The company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement.
Forward Looking Statements
This announcement contains ‘forward-looking information’ that is based on the Company’s expectations, estimates and projections as of the date on which the statements were made. This forward-looking information includes, among other things, statements with respect to the Company’s business strategy, plans, development, objectives, performance, outlook, growth, cash flow, projections, targets and expectations, mineral reserves and resources, results of exploration and related expenses. Generally, this forward-looking information can be identified by the use of forward-looking terminology such as ‘outlook’, ‘anticipate’, ‘project’, ‘target’, ‘potential’, ‘likely’, ‘believe’, ‘estimate’, ‘expect’, ‘intend’, ‘may’, ‘would’, ‘could’, ‘should’, ‘scheduled’, ‘will’, ‘plan’, ‘forecast’, ‘evolve’ and similar expressions. Persons reading this announcement are cautioned that such statements are only predictions, and that the Company’s actual future results or performance may be materially different. Forward-looking information is subject to known and unknown risks, uncertainties and other factors that may cause the Company’s actual results, level of activity, performance or achievements to be materially different from those expressed or implied by such forward-looking information.
Competent Person’s Statement
The information in this report which relates to exploration results is based on information compiled by Mr. Matthew Weber, who is an employee of the company. Mr Weber is a Member of the Australasian Institute of Mining and Metallurgy and has sufficient relevant experience to the style of mineralisation and type of deposit under consideration and to the activities undertaken to qualify as a Competent Person as defined in the 2012 Edition of the Joint Ore Reserves Committee (JORC) Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Weber consents to the inclusion in this report of the matters based on the information compiled by him, in the form and context in which it appears.
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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Appendix 1: Detailed Technical Information and JORC Table 1
Table 3 Completed and ongoing drillholes at Emmie Bluff at the time of publication.
| HoleID | Phase | Easting | Northing | EOH (RC) | Dip | Azi | EOH (DD) | Comments |
|---|---|---|---|---|---|---|---|---|
| DD20EB0001 | 1 | 708140 | 6553048 | 212.7 | -80 | 270 | 490.08 | Results released |
| DD20EB0002 | 1 | 708025 | 6554312 | 251.3 | -80 | 280 | 512.85 | Results released |
| DD20EB0003 | 1 | 707260 | 6554861 | 251.4 | -90 | 273 | 456.77 | Results released |
| DD20EB0004 | 1 | 705461 | 6555872 | - | -80 | 90 | 456.8 | Results released |
| DD20EB0005 | 1 | 704128 | 6557375 | 155.7 | -75 | 90 | 390.9 | Results released |
| DD20EB0006 | 1 | 705158 | 6555872 | 220.5 | -80 | 90 | 414 | Results released |
| DD20EB0007 | 1 | 706583 | 6556580 | 218.7 | -80 | 270 | 479.4 | Results released |
| DD21EB0008 | 1 | 706331 | 6556140 | 218.7 | -88 | 90 | 460 | Completed, Results Pending |
| DD21EB0009 | 2 | 706602 | 6555859 | 218.7 | -88 | 270 | 471.8 | Completed, Results Pending |
| DD21EB0010 | 2 | 705715 | 6555250 | 218.7 | -75 | 90 | 390.7 | Completed, Results Pending |
| DD21EB0011 | 2 | 705937 | 6555248 | 218.7 | -85 | 90 | 432.8 | Completed, Results Pending |
| DD21EB0012 | 2 | 706651 | 6557401 | 219.6 | -60 | 270 | 519.5 | Completed, Results Pending |
| DD21EB0013 | 2 | 705408 | 6556132 | 218.7 | -80 | 90 | 453.3 | Completed, Results Pending |
| DD21EB0014 | 2 | 706490 | 6556220 | 218.7 | -80 | 90 | 468.4 | Completed, Results Pending. |
Table 4 Referenced Historic drillholes at Emmie Bluff
| HoleID | Easting | Northing | Dip | Azi | EOH |
|---|---|---|---|---|---|
| IHAD2 | 705450 | 6557500 | -90 | 0 | 1158.8 |
| IHAD5 | 705119 | 6557882 | -90 | 0 | 1152.8 |
| IHAD6 | 704806 | 6558260 | -90 | 0 | 1116.7 |
| IHAD7 | 704430 | 6557930 | -90 | 0 | 465.9 |
| MGD 1 | 706687.9 | 6554811 | -90 | 0 | 435.66 |
| MGD 55 | 704100 | 6555500 | -90 | 0 | 1107.3 |
| MGD 57 | 705350 | 6556700 | -90 | 0 | 1242.9 |
| PEB 64 | 704838.9 | 6555982 | -90 | 0 | 401 |
| SAE 12 | 705879 | 6555682 | -90 | 0 | 446.3 |
| SAE 13 | 706969 | 6556872 | -90 | 0 | 477.6 |
| SAE 14 | 705429 | 6558162 | -90 | 0 | 498.44 |
| SAE 15 | 704459 | 6556812 | -90 | 0 | 400.81 |
| SAE 16 | 705929 | 6554722 | -90 | 0 | 357.8 |
| SAE 17 | 706519 | 6555292 | -90 | 0 | 435.2 |
| SAE 18 | 706439 | 6555362 | -90 | 0 | 426.7 |
| SAE 19 | 706579 | 6555512 | -90 | 0 | 429.7 |
| SAE 20 | 706309 | 6555212 | -90 | 0 | 417.85 |
| SAE 21 | 705799 | 6556302 | -90 | 0 | 452.3 |
| SAE 22 | 705279 | 6556962 | -90 | 0 | 435.6 |
| SAE 3 | 704379 | 6555352 | -90 | 0 | 1221 |
| SAE 4 | 704179 | 6556172 | -90 | 0 | 1172.5 |
| SAE 5 | 706029 | 6557322 | -90 | 0 | 914.4 |
| SAE 6 | 705029 | 6556222 | -90 | 0 | 1200 |
| DD18EB0001 | 706110 | 6555382 | -90 | 0 | 441.88 |
| DD19EB0001 | 706378 | 6555681 | -60 | 90 | 467.5 |
| DD18EB0002 | 706122 | 6555939 | -90 | 0 | 444.04 |
| DD19EB0002a | 705792 | 6556452 | -90 | 0 | 456.9 |
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| Criteria | JORC | Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Sampling | • | Nature and quality of sampling (eg cut channels, | • | RC precollars of varying depths were drilled before drilling technique |
| techniques | random chips, or specific specialised industry | switched over to HQ drill core. | ||
| standard measurement tools appropriate to the | • | Core was logged in the field and rough metal content was measured at | ||
| minerals under investigation, such as down hole | regular intervals with a portable XRF device. XRF measurement intervals | |||
| gamma sondes, or handheld XRF instruments, | varied depending on lithology, from 10m in suspected unmineralised strata to | |||
| etc). These examples should not be taken as | 10cm in areas of suspected mineralisation. | |||
| limiting the broad meaning of sampling. | • | Sampling intervals were selected by field geologist based on logging and XRF | ||
| • | Include reference to measures taken to ensure | results. | ||
| sample representivity and the appropriate | • | Understanding of the mineralising system based on historical drilling and the | ||
| calibration of any measurement tools or systems | XRF results allowed large parts of the holes to remain unsampled. Typically, | |||
| used. | sampling as restricted to the Tapley Hill Formation shale, and the material | |||
| • | Aspects of the determination of mineralisation | immediately above and below its upper and lower contacts. | ||
| that are Material to the Public Report. | ||||
| • | In cases where ‘industry standard’ work has been | |||
| done this would be relatively simple (eg ‘reverse | ||||
| circulation drilling was used to obtain 1 m | ||||
| samples from which 3 kg was pulverised to | ||||
| produce a 30 g charge for fire assay’). In other | ||||
| cases more explanation may be required, such as | ||||
| where there is coarse gold that has inherent | ||||
| sampling problems. Unusual commodities or | ||||
| mineralisation types (eg submarine nodules) may | ||||
| warrant disclosure of detailed information. |
ABN 49 625 763 957
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6 Altona Street West Perth Western Australia, 6005
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| Criteria | JORC | Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Drilling | • | Drill type (eg core, reverse circulation, open-hole | • | All drill holes with one exception were drilled with RC precollars to |
| techniques | hammer, rotary air blast, auger, Bangka, sonic, | approximately 150 – 250m, followed by HQ standard tube diamond tails to a | ||
| etc) and details (eg core diameter, triple or | maximum depth of between 400 and 512.8m. The one exception | |||
| standard tube, depth of diamond tails, face- | (DD20EB0004) was drilled as diamond from surface, commencing as PQ until | |||
| sampling bit or other type, whether core is | 50.9m, then changing over to HQ for the remainder of the hole. | |||
| oriented and if so, by what method, etc). | • | Core was oriented by Ezymark core orientation tool. | ||
| Drill sample | • | Method of recording and assessing core and chip | • | RC precollars are not believed to be relevant to the mineralising system at |
| recovery | sample recoveries and results assessed. | Emmie Bluff and were not assessed for recovery. | ||
| • | Measures taken to maximise sample recovery | • | Recovery of diamond tails was excellent based on minimal core loss. | |
| and ensure representative nature of the samples. | • |
No relationship is believed to exist between sample recovery and grade. | ||
| • | 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 | • | Basic stratigraphic logging has been carried out by appropriately trained and |
| geologically and geotechnically logged to a level | experienced field geologists on RC precollars. | |||
| of detail to support appropriate Mineral Resource | • |
Detailed qualitative geological logging has been carried out by appropriately | ||
| estimation, mining studies and metallurgical | trained and experienced field geologists on all diamond core. Quantitative | |||
| studies. | logging by means of portable XRF has been undertaken on an as needed basis | |||
| • | Whether logging is qualitative or quantitative in | in areas of prospectivity, typically utilising a 0.5m interval with interval | ||
| nature. Core (or costean, channel, etc) | reduction down to 0.2, 0.1 or 0.05m in areas of known prospectivity (i.e. the | |||
| photography. | upper and lower contacts of the Tapley Hill Fm shale) or where coarser | |||
| • | The total length and percentage of the relevant | analysis revealed geochemical anomalism. | ||
| intersections logged. |
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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| Sub-sampling techniques and sample preparation • 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 whether sampled wet or dry. • For all sample types, the nature, quality and appropriateness of the sample preparation technique. • 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. |
• Sample intervals were defined by field geologists based on portable XRF results and detailed geological logging. • Core was then transported by road to Adelaide where the core was cut by means of an Almonte core saw (where competent enough to do so) or by brick saw, where it was not. • A total of 171 samples were taken, including field duplicates and standards, which were inserted at a 1:20 and 1:10 ratio respectively (17 standards, 8 field duplicates), leaving a total of 146 samples. • Core was cut on a sample-by sample-basis according to need in the following manner: oWhere a field duplicatewas notrequired:¼ core for assay, ¼ core for retention by Coda on site for future review, ½ core for future metallurgical work (currently being held in cold storage). oWhere a field duplicatewasrequired:¼ core for assay, ¼ core for duplicate assay, ¼ core for retention by Coda on site for future review, ¼ core for future metallurgical work (currently being held in cold storage). • Samples varied in width from 0.2 to 1.6m, with an average of 0.64m per sample. Mineralised samples (i.e. CuEq>0.5) varied in width from 0.2 to 0.86m, with an average of 0.39m per sample. Full details regarding the CuEq calculation can be found in the body of the document. • Field duplicates were taken based on sample numbers ensuring random selection of mineralised and unmineralized material: Hole ID SampleID From To Interval Cu Co Ag DD20EB0002 D20A0019 492.30 493.00 0.70 30 4 <0.2 DD20EB0002 D20A0021 492.30 493.00 0.70 40 5 <0.2 DD20EB0002 D20A0039 507.00 508.00 1.00 4 4 <0.2 DD20EB0002 D20A0041 507.00 508.00 1.00 9 4 <0.2 DD20EB0004 D20A0059 410.20 410.60 0.40 13000 588 14.6 DD20EB0004 D20A0061 410.20 410.60 0.40 12400 567 14.2 |
• Sample intervals were defined by field geologists based on portable XRF results and detailed geological logging. • Core was then transported by road to Adelaide where the core was cut by means of an Almonte core saw (where competent enough to do so) or by brick saw, where it was not. • A total of 171 samples were taken, including field duplicates and standards, which were inserted at a 1:20 and 1:10 ratio respectively (17 standards, 8 field duplicates), leaving a total of 146 samples. • Core was cut on a sample-by sample-basis according to need in the following manner: oWhere a field duplicatewas notrequired:¼ core for assay, ¼ core for retention by Coda on site for future review, ½ core for future metallurgical work (currently being held in cold storage). oWhere a field duplicatewasrequired:¼ core for assay, ¼ core for duplicate assay, ¼ core for retention by Coda on site for future review, ¼ core for future metallurgical work (currently being held in cold storage). • Samples varied in width from 0.2 to 1.6m, with an average of 0.64m per sample. Mineralised samples (i.e. CuEq>0.5) varied in width from 0.2 to 0.86m, with an average of 0.39m per sample. Full details regarding the CuEq calculation can be found in the body of the document. • Field duplicates were taken based on sample numbers ensuring random selection of mineralised and unmineralized material: Hole ID SampleID From To Interval Cu Co Ag DD20EB0002 D20A0019 492.30 493.00 0.70 30 4 <0.2 DD20EB0002 D20A0021 492.30 493.00 0.70 40 5 <0.2 DD20EB0002 D20A0039 507.00 508.00 1.00 4 4 <0.2 DD20EB0002 D20A0041 507.00 508.00 1.00 9 4 <0.2 DD20EB0004 D20A0059 410.20 410.60 0.40 13000 588 14.6 DD20EB0004 D20A0061 410.20 410.60 0.40 12400 567 14.2 |
• Sample intervals were defined by field geologists based on portable XRF results and detailed geological logging. • Core was then transported by road to Adelaide where the core was cut by means of an Almonte core saw (where competent enough to do so) or by brick saw, where it was not. • A total of 171 samples were taken, including field duplicates and standards, which were inserted at a 1:20 and 1:10 ratio respectively (17 standards, 8 field duplicates), leaving a total of 146 samples. • Core was cut on a sample-by sample-basis according to need in the following manner: oWhere a field duplicatewas notrequired:¼ core for assay, ¼ core for retention by Coda on site for future review, ½ core for future metallurgical work (currently being held in cold storage). oWhere a field duplicatewasrequired:¼ core for assay, ¼ core for duplicate assay, ¼ core for retention by Coda on site for future review, ¼ core for future metallurgical work (currently being held in cold storage). • Samples varied in width from 0.2 to 1.6m, with an average of 0.64m per sample. Mineralised samples (i.e. CuEq>0.5) varied in width from 0.2 to 0.86m, with an average of 0.39m per sample. Full details regarding the CuEq calculation can be found in the body of the document. • Field duplicates were taken based on sample numbers ensuring random selection of mineralised and unmineralized material: Hole ID SampleID From To Interval Cu Co Ag DD20EB0002 D20A0019 492.30 493.00 0.70 30 4 <0.2 DD20EB0002 D20A0021 492.30 493.00 0.70 40 5 <0.2 DD20EB0002 D20A0039 507.00 508.00 1.00 4 4 <0.2 DD20EB0002 D20A0041 507.00 508.00 1.00 9 4 <0.2 DD20EB0004 D20A0059 410.20 410.60 0.40 13000 588 14.6 DD20EB0004 D20A0061 410.20 410.60 0.40 12400 567 14.2 |
• Sample intervals were defined by field geologists based on portable XRF results and detailed geological logging. • Core was then transported by road to Adelaide where the core was cut by means of an Almonte core saw (where competent enough to do so) or by brick saw, where it was not. • A total of 171 samples were taken, including field duplicates and standards, which were inserted at a 1:20 and 1:10 ratio respectively (17 standards, 8 field duplicates), leaving a total of 146 samples. • Core was cut on a sample-by sample-basis according to need in the following manner: oWhere a field duplicatewas notrequired:¼ core for assay, ¼ core for retention by Coda on site for future review, ½ core for future metallurgical work (currently being held in cold storage). oWhere a field duplicatewasrequired:¼ core for assay, ¼ core for duplicate assay, ¼ core for retention by Coda on site for future review, ¼ core for future metallurgical work (currently being held in cold storage). • Samples varied in width from 0.2 to 1.6m, with an average of 0.64m per sample. Mineralised samples (i.e. CuEq>0.5) varied in width from 0.2 to 0.86m, with an average of 0.39m per sample. Full details regarding the CuEq calculation can be found in the body of the document. • Field duplicates were taken based on sample numbers ensuring random selection of mineralised and unmineralized material: Hole ID SampleID From To Interval Cu Co Ag DD20EB0002 D20A0019 492.30 493.00 0.70 30 4 <0.2 DD20EB0002 D20A0021 492.30 493.00 0.70 40 5 <0.2 DD20EB0002 D20A0039 507.00 508.00 1.00 4 4 <0.2 DD20EB0002 D20A0041 507.00 508.00 1.00 9 4 <0.2 DD20EB0004 D20A0059 410.20 410.60 0.40 13000 588 14.6 DD20EB0004 D20A0061 410.20 410.60 0.40 12400 567 14.2 |
• Sample intervals were defined by field geologists based on portable XRF results and detailed geological logging. • Core was then transported by road to Adelaide where the core was cut by means of an Almonte core saw (where competent enough to do so) or by brick saw, where it was not. • A total of 171 samples were taken, including field duplicates and standards, which were inserted at a 1:20 and 1:10 ratio respectively (17 standards, 8 field duplicates), leaving a total of 146 samples. • Core was cut on a sample-by sample-basis according to need in the following manner: oWhere a field duplicatewas notrequired:¼ core for assay, ¼ core for retention by Coda on site for future review, ½ core for future metallurgical work (currently being held in cold storage). oWhere a field duplicatewasrequired:¼ core for assay, ¼ core for duplicate assay, ¼ core for retention by Coda on site for future review, ¼ core for future metallurgical work (currently being held in cold storage). • Samples varied in width from 0.2 to 1.6m, with an average of 0.64m per sample. Mineralised samples (i.e. CuEq>0.5) varied in width from 0.2 to 0.86m, with an average of 0.39m per sample. Full details regarding the CuEq calculation can be found in the body of the document. • Field duplicates were taken based on sample numbers ensuring random selection of mineralised and unmineralized material: Hole ID SampleID From To Interval Cu Co Ag DD20EB0002 D20A0019 492.30 493.00 0.70 30 4 <0.2 DD20EB0002 D20A0021 492.30 493.00 0.70 40 5 <0.2 DD20EB0002 D20A0039 507.00 508.00 1.00 4 4 <0.2 DD20EB0002 D20A0041 507.00 508.00 1.00 9 4 <0.2 DD20EB0004 D20A0059 410.20 410.60 0.40 13000 588 14.6 DD20EB0004 D20A0061 410.20 410.60 0.40 12400 567 14.2 |
• Sample intervals were defined by field geologists based on portable XRF results and detailed geological logging. • Core was then transported by road to Adelaide where the core was cut by means of an Almonte core saw (where competent enough to do so) or by brick saw, where it was not. • A total of 171 samples were taken, including field duplicates and standards, which were inserted at a 1:20 and 1:10 ratio respectively (17 standards, 8 field duplicates), leaving a total of 146 samples. • Core was cut on a sample-by sample-basis according to need in the following manner: oWhere a field duplicatewas notrequired:¼ core for assay, ¼ core for retention by Coda on site for future review, ½ core for future metallurgical work (currently being held in cold storage). oWhere a field duplicatewasrequired:¼ core for assay, ¼ core for duplicate assay, ¼ core for retention by Coda on site for future review, ¼ core for future metallurgical work (currently being held in cold storage). • Samples varied in width from 0.2 to 1.6m, with an average of 0.64m per sample. Mineralised samples (i.e. CuEq>0.5) varied in width from 0.2 to 0.86m, with an average of 0.39m per sample. Full details regarding the CuEq calculation can be found in the body of the document. • Field duplicates were taken based on sample numbers ensuring random selection of mineralised and unmineralized material: Hole ID SampleID From To Interval Cu Co Ag DD20EB0002 D20A0019 492.30 493.00 0.70 30 4 <0.2 DD20EB0002 D20A0021 492.30 493.00 0.70 40 5 <0.2 DD20EB0002 D20A0039 507.00 508.00 1.00 4 4 <0.2 DD20EB0002 D20A0041 507.00 508.00 1.00 9 4 <0.2 DD20EB0004 D20A0059 410.20 410.60 0.40 13000 588 14.6 DD20EB0004 D20A0061 410.20 410.60 0.40 12400 567 14.2 |
• Sample intervals were defined by field geologists based on portable XRF results and detailed geological logging. • Core was then transported by road to Adelaide where the core was cut by means of an Almonte core saw (where competent enough to do so) or by brick saw, where it was not. • A total of 171 samples were taken, including field duplicates and standards, which were inserted at a 1:20 and 1:10 ratio respectively (17 standards, 8 field duplicates), leaving a total of 146 samples. • Core was cut on a sample-by sample-basis according to need in the following manner: oWhere a field duplicatewas notrequired:¼ core for assay, ¼ core for retention by Coda on site for future review, ½ core for future metallurgical work (currently being held in cold storage). oWhere a field duplicatewasrequired:¼ core for assay, ¼ core for duplicate assay, ¼ core for retention by Coda on site for future review, ¼ core for future metallurgical work (currently being held in cold storage). • Samples varied in width from 0.2 to 1.6m, with an average of 0.64m per sample. Mineralised samples (i.e. CuEq>0.5) varied in width from 0.2 to 0.86m, with an average of 0.39m per sample. Full details regarding the CuEq calculation can be found in the body of the document. • Field duplicates were taken based on sample numbers ensuring random selection of mineralised and unmineralized material: Hole ID SampleID From To Interval Cu Co Ag DD20EB0002 D20A0019 492.30 493.00 0.70 30 4 <0.2 DD20EB0002 D20A0021 492.30 493.00 0.70 40 5 <0.2 DD20EB0002 D20A0039 507.00 508.00 1.00 4 4 <0.2 DD20EB0002 D20A0041 507.00 508.00 1.00 9 4 <0.2 DD20EB0004 D20A0059 410.20 410.60 0.40 13000 588 14.6 DD20EB0004 D20A0061 410.20 410.60 0.40 12400 567 14.2 |
• Sample intervals were defined by field geologists based on portable XRF results and detailed geological logging. • Core was then transported by road to Adelaide where the core was cut by means of an Almonte core saw (where competent enough to do so) or by brick saw, where it was not. • A total of 171 samples were taken, including field duplicates and standards, which were inserted at a 1:20 and 1:10 ratio respectively (17 standards, 8 field duplicates), leaving a total of 146 samples. • Core was cut on a sample-by sample-basis according to need in the following manner: oWhere a field duplicatewas notrequired:¼ core for assay, ¼ core for retention by Coda on site for future review, ½ core for future metallurgical work (currently being held in cold storage). oWhere a field duplicatewasrequired:¼ core for assay, ¼ core for duplicate assay, ¼ core for retention by Coda on site for future review, ¼ core for future metallurgical work (currently being held in cold storage). • Samples varied in width from 0.2 to 1.6m, with an average of 0.64m per sample. Mineralised samples (i.e. CuEq>0.5) varied in width from 0.2 to 0.86m, with an average of 0.39m per sample. Full details regarding the CuEq calculation can be found in the body of the document. • Field duplicates were taken based on sample numbers ensuring random selection of mineralised and unmineralized material: Hole ID SampleID From To Interval Cu Co Ag DD20EB0002 D20A0019 492.30 493.00 0.70 30 4 <0.2 DD20EB0002 D20A0021 492.30 493.00 0.70 40 5 <0.2 DD20EB0002 D20A0039 507.00 508.00 1.00 4 4 <0.2 DD20EB0002 D20A0041 507.00 508.00 1.00 9 4 <0.2 DD20EB0004 D20A0059 410.20 410.60 0.40 13000 588 14.6 DD20EB0004 D20A0061 410.20 410.60 0.40 12400 567 14.2 |
|---|---|---|---|---|---|---|---|---|
| Hole ID | SampleID | From | To | Interval | Cu | Co | Ag | |
| DD20EB0002 | D20A0019 | 492.30 | 493.00 | 0.70 0.70 |
30 40 |
4 5 |
<0.2 <0.2 |
|
| DD20EB0002 | D20A0021 | 492.30 | 493.00 | |||||
| DD20EB0002 | D20A0039 | 507.00 | 508.00 | 1.00 1.00 |
4 9 |
4 4 |
<0.2 <0.2 |
|
| DD20EB0002 | D20A0041 | 507.00 | 508.00 | |||||
| DD20EB0004 | D20A0059 | 410.20 | 410.60 | 0.40 0.40 |
13000 12400 |
588 567 |
14.6 14.2 |
|
| DD20EB0004 | D20A0061 | 410.20 | 410.60 |
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6 Altona Street E: [email protected] West Perth Western Australia, 6005 ABN 49 625 763 957
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| Criteria JORC Code explanation Commentary |
Criteria JORC Code explanation Commentary |
|||||||
|---|---|---|---|---|---|---|---|---|
| DD20EB0004 | D20A0079 | 421.80 | 422.36 | 0.56 0.56 |
52 67 |
18 17 |
4.4 4 |
|
| DD20EB0004 | D20A0081 | 421.80 | 422.36 | |||||
| DD20EB0004 | D20A0099 | 435.85 | 436.50 | 0.65 0.65 |
121 58 |
5 5 |
0.8 1.6 |
|
| DD20EB0004 | D20A0101 | 435.85 | 436.50 | |||||
| DD20EB0005 | D20A0119 | 352.20 | 352.50 | 0.30 0.30 |
6600 7870 |
11 10 |
17 17.8 |
|
| DD20EB0005 | D20A0121 | 352.20 | 352.50 | |||||
| DD20EB0005 | D20A0139 | 363.8 | 364.2 | 0.40 0.40 |
751 763 |
186 186 |
5.8 6.2 |
|
| DD20EB0005 | D20A0141 | 363.8 | 364.2 | |||||
| DD20EB0007 | D20A0159 | 454.6 | 454.88 | 0.28 0.28 |
30900 33000 |
37 31 |
25.8 28 |
|
| DD20EB0007 | D20A0161 | 454.6 | 454.88 | |||||
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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-
Criteria JORC Code explanation Commentary Quality of • The nature, quality and appropriateness of the • Assays were undertaken by Bureau Veritas in Adelaide SA. assay data and assaying and laboratory procedures used and • Quartered core was crushed, split and pulverised before being digested with laboratory whether the technique is considered partial or a mixture of nitric, perchloric and hydrofluoric acids. This digest approximates tests total. a total digest in most samples. • For geophysical tools, spectrometers, handheld • Al, Ca, Fe, Mg, Mn and S were determined by ICP-AES, Ag, As, Bi, Ce, Co, Cu, XRF instruments, etc, the parameters used in La, Ni, Pb, Th, Y, Zn, Zr.were determined by ICP-MS.
-
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 derivation, etc.
-
These techniques were determined in consultation with the assay laboratory and are considered appropriate for the deposit type.
-
Field duplicates and standards were inserted at a 1:20 and 1:10 ratio respectively (17 standards, 8 field duplicates over 171 total samples).
-
• Average error for target elements was 0.02% (Cu), 0.13 ppm (Ag) and 23 ppm (Co). See below:
-
Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established.
| Cu Cu |
Cu Cu |
Ag Ag |
Ag Ag |
Co Co |
Co Co |
|---|---|---|---|---|---|
| Measured Expected |
Measured Expected |
Measured Expected |
|||
| 40100 | 39300 | 11.2 | 11.5 | 49.9 | 53 |
| 4020 | 4090 | 1 | 1.1 | 119 | 113 |
| 4010 | 4090 | 1 | 1.1 | 119 | 104 |
| 4130 | 4090 | 1 | 1.1 | 119 | 109 |
| 4040 | 4090 | 1 | 1.1 | 119 | 117 |
| 3950 | 4090 | 1 | 1.1 | 119 | 107 |
| 3710 | 4090 | 1 | 1.1 | 119 | 114 |
| 4230 | 4090 | 1.2 | 1.1 | 119 | 123 |
| 4070 | 4090 | 1.2 | 1.1 | 119 | 124 |
| 7140 | 7720 | 3.2 | 3.5 | 631 | 583 |
| 7050 | 7720 | 3.2 | 3.5 | 631 | 579 |
| 7190 | 7720 | 3.2 | 3.5 | 631 | 618 |
| 7450 | 7720 | 3.4 | 3.5 | 631 | 625 |
| 7720 | 7720 | 3.6 | 3.5 | 631 | 674 |
| 7770 | 7720 | 3.6 | 3.5 | 631 | 652 |
| 31400 | 32000 | 3 | 3.02 | 2445 | 2380 |
| 32500 ~~•~~ |
32000 | 3 | 3.02 | 2445 | 2360 |
6 Altona Street West Perth Western Australia, 6005
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ABN 49 625 763 957
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| Criteria | JORC | Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Verification of | • | The verification of significant intersections by | • | Significant intersections have been verified against geological logging, |
| sampling and | either independent or alternative company | portable XRF results, and distributed to field geologists for further review. | ||
| assaying | personnel. | • | No adjustments have been made to assay data except to composite for | |
| • | The use of twinned holes. | simplicity in this release. | ||
| • | Documentation of primary data, data entry | • | No twin holes have been undertaken at this prospect. | |
| procedures, data verification, data storage | ||||
| (physical and electronic) protocols. | ||||
| • | Discuss any adjustment to assay data. | |||
| Location of | • | Accuracy and quality of surveys used to locate | • | Drill collar locations (including RL) have been located using handheld GPS, |
| data points | drill holes (collar and down-hole surveys), | MGA 94 Zone 53. | ||
| trenches, mine workings and other locations used | • |
Precise location of drillholes will be determined by an independent surveyor | ||
| in Mineral Resource estimation. | at the completion of the overall drill programme (expected March 2021). | |||
| • | Specification of the grid system used. | |||
| • | Quality and adequacy of topographic control. | |||
| Data spacing | • | Data spacing for reporting of Exploration Results. | • | Drillholes reported are irregularly spaced, with a mean distance of 984m to |
| and | • | Whether the data spacing and distribution is | their nearest neighbour, a minimum nearest neighbour distance of 299m | |
| distribution | sufficient to establish the degree of geological | (DD20EB0004 – DD20EB0006) and a maximum of 1,812m (DD20EB0005 – | ||
| and grade continuity appropriate for the Mineral | DD20EB0006). | |||
| Resource and Ore Reserve estimation | • | If nearby historic holes are included, the mean distance to their nearest | ||
| procedure(s) and classifications applied. | neighbour falls to 621m, with an unchanged minimum and a new maximum | |||
| • | Whether sample compositing has been applied. | of 1,107m (DD20EB0001 – MGD 42) | ||
| • | Coda does not believe that the results reported in this release are sufficient | |||
| to estimate a Mineral Resource and has not attempted to do so. |
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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| Criteria | JORC | Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Orientation of | • | Whether the orientation of sampling achieves | • | Due to drilling conditions, drillholes at Emmie Bluff are difficult to keep |
| data in | unbiased sampling of possible structures and the | straight and tend to dip towards -90 degrees as they increase in depth, | ||
| relation to | extent to which this is known, considering the | regardless of starting dip. This makes orienting of core difficult and largely | ||
| geological | deposit type. | ineffective at the prospect. | ||
| structure | • | If the relationship between the drilling | • | The main mineralised stratum (Tapley Hill Fm shale) is relatively flat lying |
| orientation and the orientation of key | throughout the prospect area based on previously announced seismic results | |||
| mineralised structures is considered to have | and historical drilling. As such, the near-vertical intersects reported are | |||
| introduced a sampling bias, this should be | believed to be broadly representative of true width and are not believed to | |||
| assessed and reported if material. | introduce any meaningful sampling bias. | |||
| Sample | • | The measures taken to ensure sample security. | • | Samples were taken by representatives of Coda Minerals or Challenger |
| security | Geological Services from the field to a core cutting facility in Adelaide, and | |||
| then on to the assay lab. No third part other than Challenger Geological | ||||
| Services had access to the samples between the field and the assay lab. | ||||
| Audits or | • | The results of any audits or reviews of sampling | • | No audits, umpire assays or reviews were undertaken beyond standard |
| reviews | techniques and data. | QA/QC procedures. |
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 | • | All drilling took place on EL 6265. |
| tenement and | agreements or material issues with third parties such as joint | • | EL 6265 is owned in a 70:30 relationship by Coda | |
| land tenure | ventures, partnerships, overriding royalties, native title interests, | Minerals Ltd and Terrace Mining Ltd. | ||
| status | historical sites, wilderness or national park and environmental | • | Coda Minerals is currently farming in to increase its | |
| settings. | ownership to a maximum of 75%. | |||
| • | The security of the tenure held at the time of reporting along with any | • | The tenure is in good standing and is considered secure | |
| known impediments to obtaining a licence to operate in the area. | at the time of this release. No other impediments are | |||
| known at this time. |
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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| Criteria | JORC | Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Exploration | • | Acknowledgment and appraisal of exploration by other parties. | • | Historical exploration of the Emmie Bluff prospect has |
| done by other | been undertaken by (among others) Mt Isa Mines, | |||
| parties | Gunson Resources, Torrens Mining and Gindalbie Metals | |||
| (Coda’s predecessor company). | ||||
| • | With the exception of data from Gindalbie Metals, all | |||
| historical results used to guide Coda’s exploration has | ||||
| been obtained from the Geological Survey of South | ||||
| Australia via the South Australian Resources Information | ||||
| Gateway (SARIG). | ||||
| Geology | • | Deposit type, geological setting and style of mineralisation. | • | The Elizabeth Creek project sits in the Stuart Shelf within |
| the broader Olympic Copper Province in South Australia. | ||||
| Specifically, mineralisation is hosted in the dolomitic | ||||
| shales and dolarenites of the Neoproterozoic Tapley Hill | ||||
| Formation. This formation unconformably overlies the | ||||
| Meso/Palaeoproterozoic Pandurra Formation due to | ||||
| local uplifting associated with the Pernatty Upwarp. This | ||||
| unconformity, as well as structures associated with the | ||||
| Pernatty Upwarp, represent the most likely fluid flow | ||||
| pathways associated with the emplacement of metal | ||||
| bearing sulphides. | ||||
| • | Emmie Bluff mineralisation closely resembles | |||
| mineralisation in the MG14 and Windabout resources | ||||
| found approximately 40 kilometres to the south, also | ||||
| within the broader Elizabeth Creek tenure. It is | ||||
| considered to fall within the broad “Zambian-style” | ||||
| family of sediment hosted copper deposits. |
6 Altona Street E: [email protected] West Perth Western Australia, 6005 ABN 49 625 763 957
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| Criteria | JORC | Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Drill hole | • | A summary of all information material to the understanding of the | • | See Table 1 in body of announcement. |
| Information | exploration results including a tabulation of the following information | |||
| for all Material drill holes: | ||||
oeasting and northing of the drill hole collar |
||||
oelevation or RL (Reduced Level – elevation above sea level in |
||||
| metres) of the drill hole collar | ||||
odip and azimuth of the hole |
||||
odown hole length and interception depth |
||||
ohole 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. |
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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| Criteria | JORC | Code explanation | Commentary | Commentary | |
|---|---|---|---|---|---|
| Data | • | In reporting Exploration Results, weighting averaging techniques, | • | Cut Off grade for reporting assays is 0.5% CuEq | |
| aggregation | maximum and/or minimum grade truncations (eg cutting of high | calculated as per Footnote 5 in the main body of the | |||
| methods | grades) and cut-off grades are usually Material and should be stated. | announcement. | |||
| • | Where aggregate intercepts incorporate short lengths of high grade | • | Due to the narrow nature of the mineralised intercepts, | ||
| results and longer lengths of low grade results, the procedure used for | Coda believes that selective mining of high grade bands | ||||
| such aggregation should be stated and some typical examples of such | is likely impractical and would be misleading. All | ||||
| aggregations should be shown in detail. | intersects have been reported as length weighted | ||||
| • | The assumptions used for any reporting of metal equivalent values | averages, in line with how they would most likely be | |||
| should be clearly stated. | eventually extracted. | ||||
| • | Typical example is included below: | ||||
| DD20EB0004:2.05m from 408.95 @ 4.09% CuEq | |||||
| (1.76% Cu,1,936ppm Co and 16.89g/t Ag) | |||||
| From To Length Cu Co Ag CuEq |
|||||
| 408.95 409.30 0.35 30200 5620 27.8 9.764 |
|||||
| 409.30 409.60 0.30 24500 2570 17.4 5.534 |
|||||
| 409.60 409.90 0.30 19000 1810 13.4 4.072 |
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| 409.90 410.20 0.30 17800 1090 14.6 3.088 |
|||||
| 410.20 410.60 0.40 13000 588 14.6 2.0056 |
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| 410.60 411.00 0.40 5010 316 13.6 0.8802 |
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| Relationship | • | These relationships are particularly important in the reporting of | • | Due to drilling conditions, drillholes at Emmie Bluff are | |
| between | Exploration Results. | difficult to keep straight and tend to dip towards -90 | |||
| mineralisation | • | If the geometry of the mineralisation with respect to the drill hole | degrees as they increase in depth, regardless of starting | ||
| widths and | angle is known, its nature should be reported. | dip. | |||
| intercept | • | If it is not known and only the down hole lengths are reported, there | • | The main mineralised stratum (Tapley Hill Fm shale) is | |
| lengths | should be a clear statement to this effect (eg ‘down hole length, true | relatively flat lying throughout the prospect area based | |||
| width not known’). | on previously announced seismic results and historical | ||||
| drilling. As such, the near-vertical intersects reported are | |||||
| believed to be broadly representative of true width. |
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6 Altona Street E: [email protected] West Perth Western Australia, 6005 ABN 49 625 763 957
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| Criteria | JORC | Code explanation | Commentary | Commentary | |
|---|---|---|---|---|---|
| Diagrams | • | Appropriate maps and sections (with scales) and tabulations of | • | See map, sections and tables in main body of | |
| intercepts should be included for any significant discovery being | announcement. | ||||
| 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 assays > 0.5% CuEq reported in this announcement. | |
| reporting | practicable, representative reporting of both low and high grades | Intersects not specifically reported on in this | |||
| and/or widths should be practiced to avoid misleading reporting of | announcement can be assumed to be <0.5% CuEq. | ||||
| Exploration Results. | |||||
| Other | • | Other exploration data, if meaningful and material, should be | • | No other substantive exploration results are considered | |
| substantive | reported including (but not limited to): geological observations; | relevant to this release. | |||
| exploration | geophysical survey results; geochemical survey results; bulk samples – | • | The information regarding the Exploration Target | ||
| data | size and method of treatment; metallurgical test results; bulk density, | referred to on page 2 is extracted from the report | |||
| groundwater, geotechnical and rock characteristics; potential | entitled Confirmation of Exploration Target and Mineral | ||||
| deleterious or contaminating substances. | Resource and Ore Reserve Statement, created on 23 | ||||
| October 2020 and is available to view on | |||||
| https://www.asx.com.au/asxpdf/20201026/pdf/44p31f | |||||
| mg5k2579.pdf.The company confirms that it is not | |||||
| aware of any new information or data that materially | |||||
| affects the information included in the original market | |||||
| announcement and that all material assumptions and | |||||
| technical parameters underpinning the estimates in the | |||||
| relevant market announcement continue to apply and | |||||
| have not materially changed. The company confirms that | |||||
| the form and context in which the Competent Person’s | |||||
| findings are presented have not been materially | |||||
| modified from the original market announcement. |
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957
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| Criteria | JORC | Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Further work | • | The nature and scale of planned further work (eg tests for lateral | • | The Coda board has approved a total of 17 holes, of |
| extensions or depth extensions or large-scale step-out drilling). | which 14 have been completed at the time of this | |||
| • | Diagrams clearly highlighting the areas of possible extensions, | release. Three additional holes are planned, two testing | ||
| including the main geological interpretations and future drilling areas, | seismic anomalies seeking to expand the mineralised | |||
| provided this information is not commercially sensitive. | envelope to the east, while the third is intended to test | |||
| downhole EM anomalism noted in hole DD20EB0002. | ||||
| This phase of the programme is expected to be | ||||
| completed in March 2021. | ||||
| • | Coda has appointed a resource geologist to assess the | |||
| existing drilling and geophysical dataset. The objective of | ||||
| this work is to identify necessary drill holes required to | ||||
| define a JORC 2012 compliant Inferred Mineral | ||||
| Resource. Coda anticipates that this will involve the | ||||
| drilling of up to six additional diamond drillholes, which | ||||
| it expects to complete in the second quarter of 2021. |
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6 Altona Street West Perth Western Australia, 6005
ABN 49 625 763 957