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LCL RESOURCES LIMITED — Capital/Financing Update 2021
Apr 5, 2021
65217_rns_2021-04-05_c3f8c3ec-ea53-47c6-a296-2bdd4165a4cf.pdf
Capital/Financing Update
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6 April 2021 ASX Announcement ASX: LCL
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HIGHLIGHTS
Globally significant 582m @ 0.94g/t Au drill intercept – Tesorito Gold Porphyry
-
Hole TS-DH16 at Tesorito South hits spectacular intercept of 460.9m @ 1.11g/t Au, with gold mineralisation starting from surface including:
-
116m @ 2.32g/t Au and 0.12% Cu from 132m including –
- 34.0m @ 3.03g/t Au and 0.12% Cu from 214m – the highest porphyry gold grade intercept ever recorded at Tesorito
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Total intersection 629m @ 0.88g/t Au[1] (553gram.metres) from surface including 582.3 @ 0.94g/t Au from surface
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Significant potential for higher grade envelopes extending at depth to south west
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Porphyry mineralisation south-west of fault raises exciting questions at regional level
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Assays pending for four Tesorito diamond holes (TS-DH17, 18, 20, 21)
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Drilling remains ongoing at the Quinchia Project, with two diamond rigs at Tesorito South and a third diamond rig drilling at the Chuscal prospect
Los Cerros Limited (ASX: LCL) (Los Cerros or the Company) is extremely pleased to advise that Tesorito South diamond drill hole TS-DH16, within the 100% owned Quinchia Gold Project in Colombia, has delivered an outstanding intercept of 460.9m @ 1.11g/t Au from surface within a broader intercept of 582.3 @ 0.94g/t Au from surface , far eclipsing the best drill intercepts to date, and elevating Tesorito South to a globally significant recent gold porphyry discovery (Figure 1). Porphyry associated mineralisation is now demonstrated to continue below and south-west of a fault structure at 356m downhole, introducing opportunity for more deep mineralisation in all directions.
Whilst gold mineralisation started from surface, the drill core reveals higher grade mineralisation of the target porphyry suite from 90m down hole as indicated by increased porphyry signatures such as vein density and including -
- 254m @ 1.61g/t Au from 92m which includes an even higher grade interval of 116m @ 2.32g/t Au and 0.12% Cu from 132m .
Within this interval is a 34m zone grading 3.03g/t Au and 0.12% Cu , the highest grade porphyry style mineralisation intersected at Tesorito South to date. The drill hole continued through the porphyry suite of mineralised andesites, magmatic breccias and diorites down to 356m where it crossed a fault, as expected (Figure 2).
TS-DH16 was drilled in the same fence line as TS-DH07, which was drilled in 2017[2] and generated 253m @ 1.01g/t Au from surface , with a higher grade zone of 64m @ 1.67g/t Au from 144m . The higher grade zone of TS-DH16 (254m @ 1.61g/t Au) is thought to be a much thicker extension of the high grade zone encountered in TS-DH07.
1 Uncut, assays range from 0.005g/t Au to 6.9g/t Au and includes a 32m intercept grading <0.2g/t. 2 See ASX announcements of 31 July 2018 and 30 August 2018 for the initial reporting of the assays for drill holes TS-DH01 to TS-DH07; 10 September 2020 for TS-DH08 assays; 10 November 2020 for TS-DH10 & ’11; 21 January 2021 for TS-DH12, ‘13 & ’14 and 18 March 2021 for TS-DH15. The Company confirms that it is not aware of any new information that affects the information contained in the announcements.
6 April 2021 ASX Announcement ASX: LCL
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In previous drilling, the above-mentioned fault marked the end of the zone of interest, with unmineralised units encountered to the west of the fault at depth. However, mineralisation in TS-DH16 continued for another 226m below and south-west of the fault (to 582.3m downhole), albeit at lower average grade, but with some zones of interest such as:
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20.4m @ 0.51g/t Au from 380m in porphyritic andesite
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13.7m @ 0.51g/t Au from 447.2m in porphyritic andesite
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12.0m @ 0.51g/t Au from 510m in breccia contact with diorite
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6.2m @ 0.52g/t Au from 554m in breccia
The above-mentioned 12m and 6.2m intervals are within a porphyry suite of magmatic breccias and porphyritic diorite over a 119.3m interval from 463m to 582.3m and show encouraging porphyry signatures and vein density[3] . At this stage it is inconclusive if the 119.3m interval represents the faulted extension of the Tesorito South porphyry suite or a separate porphyry suite. These results at depth have greatly enhanced the potential for Tesorito to be further expanded to the south-west, and will require a more thorough assessment, including multi-element analysis, to better understand the relationship between this new porphyry suite and the Tesorito South porphyry.
Below 582.3m to EOH at 690m, the drill cut country rock andesites which carry low grade gold mineralisation to 629m.
Los Cerros Managing Director, Jason Stirbinskis added:
“On a gram.metre basis TS-DH16 is the best hole ever recorded in the entire Quinchia district and has raised exciting questions about the potential scale of this gold system. The near surface (first 411m of this hole) has expanded to the south-west the modelled gold envelopes described by the high grade intercepts reported in the TS-DH02, ’14, ’11, ’15 drill fence and mineralisation still remains open to the south west. Follow-up drilling will further explore this region of relatively sparse data. The Company will offer further detail on interpretation of the porphyry suite intercepted below and south-west of the fault in coming weeks as we assimilate new drill data as it arrives.”
Assays remain pending for an additional four completed holes at Tesorito South (TS-DH17, 18, 20 and 21) all of which tested the lateral and depth extensions of the porphyry system. Tesorito South is developing into an exciting addition to the mid-Cauca porphyry belt which hosts many multi-million ounce gold porphyry discoveries (Figure 3).
3 Visual log of this intercept was first reported in ASX announcement 18 March 2021
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6 April 2021
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Figure 1: Tesorito plan view showing modelled gold envelopes and major controlling structures (faults)[2] .
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6 April 2021
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Figure 2: Tesorito South section C-D, showing extensions of mineralisation beyond the Secondary Fault. TS-DH16 higher grade zones are shown as wider blue drill traces with call-out box.
About Los Cerros
Los Cerros Limited is a gold/copper explorer with a dominant position within the Andes and Quinchia regions of the mid-Cauca Gold Belt of Colombia which hosts many major discoveries (Figure 3). Located in the Department of Risaralda, the Quinchia Gold Project (Los Cerros 100%) hosts the Miraflores Gold Deposit with a Resource of 877,000 Au ounces at 2.80g/t Au and Reserve of
6 April 2021 ASX Announcement ASX: LCL
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457,000 Au ounces at 3.29g/t Au[4] with economic sensitivities reported in Table 1. Miraflores is in advanced stages of approvals for mine development. Within 3km of Miraflores is the Tesorito near surface gold porphyry and the Chuscal porphyry target (Figure 4). There are several other targets within the region including the Dosquebradas deposit which has an Inferred Resource of 459,000 ounces grading 0.71g/t Au[5] (Figure 4). The Andes Gold Project (Los Cerros 90%, BHC 10% free carry to feasibility study) is a larger area of early stage exploration in the Department of Antioquia ~70km north of Quinchia. The Company has previously completed extensive preliminary surface work at many sites within the expansive footprint including ~14,000 surface samples to identify multiple early stage epithermal gold and porphyry gold +/- copper targets.
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Figure 3: The Company’s Andes and Quinchia Projects sit on the Miocene aged, mid-Cauca Gold Belt in a sub-section of the belt that hosts many major coppergold porphyry discoveries.
4 Refer ASX announcements dated 14 March 2017 (Resource) and 27 November 2017 (Reserve). The Company confirms that it is not aware of any new information or data that materially affects the information included in the market announcements, and that all material assumptions and technical parameters underpinning the estimates continue to apply
5 Inferred Mineral Resources using 0.5g/t Au cut-off grade. See announcement 25 February 2020. The Company confirms that it is not aware of any new information or data that materially affects the information included in the market announcement and that all material assumptions and technical parameters underpinning the estimate continue to apply
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6 April 2021 ASX Announcement ASX: LCL
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Figure 4: The Quinchia Gold Project contains multiple targets at various levels of investigation within a ~3km radius. This image reveals the major known target areas and gold in soils anomalism.
6 April 2021 ASX Announcement ASX: LCL
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Table 1 : The Miraflores Feasibility Study[4] generated the following parameters based on US$72m CapEx for a retreat long hole stope with backfill mining operation feeding a 1,300tpd conventional cyanide leaching facility producing an average 4koz gold/month (48koz/yr) over a 10 year operating life. It is worth noting that current gold price far exceeds the upper limit of US$1,400/oz used in the 2017 sensitivity analysis provided in the table above .
Los Cerros confirms in the subsequent public report that all the material assumptions underpinning the Miraflores project, or the forecast financial information derived from the Miraflores project, in the initial public report referred to in rule 5.16 or rule 5.17 (as the case may be) continue to apply and have not materially changed
For the purpose of ASX Listing Rule 15.5, the Board has authorised this announcement to be released.
For further enquiries contact:
Jason Stirbinskis
Managing Director - Los Cerros Limited 12/11 Ventnor Avenue WEST PERTH WA 6005 [email protected]
FORWARD LOOKING STATEMENTS This document contains forward looking statements concerning Los Cerros. Forward-looking statements are not statements of historical fact and actual events and results may differ materially from those described in the forward-looking statements as a result of a variety of risks, uncertainties and other factors. Forward-looking statements are inherently subject to business, economic, competitive, political and social uncertainties and contingencies. Many factors could cause the Company’s actual results to differ materially from those expressed or implied in any forward-looking information provided by the Company, or on behalf of the Company. Such factors include, among other things, risks relating to additional funding requirements, metal prices, exploration, development and operating risks, competition, production risks, regulatory restrictions, including environmental regulation and liability and potential title disputes. Forward looking statements in this document are based on Los Cerros’ beliefs, opinions and estimates of Los Cerros as of the dates the forward-looking statements are made, and no obligation is assumed to update forward looking statements if these beliefs, opinions and estimates should change or to reflect other future developments. Although management believes that the assumptions made by the Company and the expectations represented by such information are reasonable, there can be no assurance that the forward-looking information will prove to be accurate. Forward-looking information involves known and unknown risks, uncertainties, and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any anticipated future results, performance or achievements expressed or implied by such forward-looking information. Such factors include, among others, the actual market price of gold, the actual results of future exploration, changes in project parameters as plans continue to be evaluated, as well as those factors disclosed in the Company's publicly filed documents. Readers should not place undue reliance on forward-looking information. The Company does not undertake to update any forward-looking information, except in accordance with applicable securities laws. No representation, warranty or undertaking, express or implied, is given or made by the Company that the occurrence of the events expressed or implied in any forward-looking statements in this presentation will actually occur.
6 April 2021 ASX Announcement ASX: LCL
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JORC STATEMENTS - COMPETENT PERSONS STATEMENTS
The technical information related to Los Cerros assets contained in this report that relates to Exploration Results (excluding those pertaining to Mineral Resources and Reserves) is based on information compiled by Mr Cesar Garcia, who is a Member of the Australasian Institute of Mining and Metallurgy and who is a Geologist employed by Los Cerros on a full-time basis. Mr Garcia has sufficient experience which is 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 and Ore Reserves’. Mr Garcia consents to the inclusion in the release of the matters based on the information he has compiled in the form and context in which it appears.
The information presented here that relates to Mineral Resources of the Dosquebradas Project, Quinchia District, Republic of Colombia is based on and fairly represents information and supporting documentation compiled by Mr. Scott E. Wilson of Resource Development Associates Inc, of Highlands Ranch Colorado, USA. Mr Wilson takes overall responsibility for the Resource Estimate. Mr. Wilson is Member of the American Institute of Professionals Geologists, a “Recognised Professional Organisation” as defined by the Australasian Institute of Mining and Metallurgy (AusIMM). Mr Wilson is not an employee or related party of the Company. Mr. Wilson has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity he is undertaking to qualify as Competent Persons as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code 2012)’. Mr. Wilson consents to the inclusion in the news release of the information in the form and context in which it appears
The Company is not aware of any new information or data that materially affects the information included in this release.
TABLE 2 - MIRAFLORES PROJECT RESOURCES AND RESERVES
The Miraflores Project Mineral Resource estimate has been estimated by Metal Mining Consultants in accordance with the JORC Code (2012 Edition) and first publicly reported on 14 March 2017. No material changes have occurred after the reporting of these resource estimates since their first reporting.
Miraflores Mineral Resource Estimate, as at 14 March 2017 (100% basis)
| Resource Classification | Tonnes (000t) | Au (g/t) | Ag (g/t) | Contained Metal (Koz Au) |
Contained Metal (Koz Ag) |
|---|---|---|---|---|---|
| Measured | 2,958 | 2.98 | 2.49 | 283 | 237 |
| Indicated | 6,311 | 2.74 | 2.90 | 557 | 588 |
| Measured & Indicated | 9,269 | 2.82 | 2.77 | 840 | 826 |
| Inferred | 487 | 2.36 | 3.64 | 37 | 57 |
Notes:
i) Reported at a 1.2 g/t gold cut-off. ii) Mineral Resource estimated by Metal Mining Consultants Inc. iii) First publicly released on 14 March 2017. No material change has occurred after that date that may affect the JORC Code (2012 Edition) Mineral Resource estimation.
iv) These Mineral Resources are inclusive of the Mineral Reserves listed below.
v) Rounding may result in minor discrepancies.
Miraflores Mineral Reserve Estimate, as at 27 November 2017 (100% basis)
The Miraflores Project Ore Reserve estimate has been estimated by Ausenco in accordance with the JORC Code (2012 Edition) and first publicly reported on 18 October 2017 and updated on 27 November 2017. No material changes have occurred after the reporting of these reserve estimates since their reporting in November 2017.
| Reserve Classification | Tonnes (Mt) | Au (g/t) | Ag (g/t) | Contained Metal (Koz Au) |
Contained Metal (Koz Ag) |
|---|---|---|---|---|---|
| Proved | 1.70 | 2.75 | 2.20 | 150 | 120 |
| Probable | 2.62 | 3.64 | 3.13 | 307 | 264 |
| Total | 4.32 | 3.29 | 2.77 | 457 | 385 |
Notes:
i) Rounding of numbers may result in minor computational errors, which are not deemed to be significant. ii) These Ore Reserves are included in the Mineral Resources listed in the Table above. iii) First publicly released on 27 November 2017. No material change has occurred after that date that may affect the JORC Code (2012 Edition) Ore Reserve estimation.
Source: Ausenco, 2017
6 April 2021 ASX Announcement ASX: LCL
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Annexure: Assay Results for Hole TS-DH16
| From | To | Au ppm | Ag ppm | Cu ppm | Mo ppm |
|---|---|---|---|---|---|
| 0 | 2 | 0.58 | 0.823 | 363 | 6.79 |
| 2 | 4 | 1.07 | 0.786 | 625 | 7.58 |
| 4 | 6 | 1.52 | 4.53 | 673 | 6.29 |
| 6 | 8 | 0.56 | 4.24 | 1165 | 9.55 |
| 8 | 10 | 1.14 | 3.83 | 958 | 12.85 |
| 10 | 12 | 0.69 | 3.84 | 883 | 10.45 |
| 12 | 14 | 0.77 | 2.05 | 574 | 32.9 |
| 14 | 16 | 0.61 | 4.28 | 665 | 27.6 |
| 16 | 18 | 0.82 | 0.358 | 676 | 26.3 |
| 18 | 20 | 0.59 | 0.398 | 664 | 15.85 |
| 20 | 22 | 0.54 | 0.514 | 355 | 14.25 |
| 22 | 24 | 0.49 | 0.682 | 316 | 10.45 |
| 24 | 26 | 0.33 | 0.596 | 387 | 7.47 |
| 26 | 28 | 0.5 | 0.662 | 529 | 17.8 |
| 28 | 30 | 0.43 | 0.881 | 434 | 55.4 |
| 30 | 32 | 0.43 | 0.54 | 453 | 79.2 |
| 32 | 34 | 0.55 | 0.491 | 450 | 55.9 |
| 34 | 36 | 0.76 | 0.463 | 478 | 27.2 |
| 36 | 38 | 0.81 | 1.995 | 1010 | 83.2 |
| 38 | 40 | 0.37 | 0.896 | 521 | 60.2 |
| 40 | 42 | 0.57 | 1.015 | 1050 | 89.6 |
| 42 | 44 | 0.31 | 1.235 | 578 | 100 |
| 44 | 46 | 0.41 | 0.494 | 423 | 55.3 |
| 46 | 48 | 0.5 | 0.401 | 462 | 90 |
| 48 | 50 | 1.23 | 0.473 | 646 | 58.3 |
| 50 | 52 | 2.18 | 0.617 | 908 | 55.9 |
| 52 | 54 | 0.62 | 0.676 | 669 | 44.8 |
| 54 | 56 | 0.41 | 0.484 | 599 | 57.7 |
| 56 | 58 | 0.4 | 0.481 | 518 | 116 |
| 58 | 60 | 0.75 | 0.604 | 837 | 114.5 |
| 60 | 62 | 0.53 | 0.848 | 1430 | 133 |
| 62 | 64 | 0.21 | 0.253 | 259 | 67.7 |
| 64 | 66 | 0.85 | 0.597 | 993 | 93.8 |
| 66 | 68 | 0.32 | 0.447 | 499 | 19.1 |
| 68 | 70 | 0.27 | 0.386 | 440 | 34.4 |
| 70 | 72 | 0.37 | 0.446 | 566 | 49.1 |
| 72 | 74 | 0.33 | 0.271 | 434 | 18.4 |
| 74 | 76 | 0.42 | 0.64 | 737 | 73 |
| 76 | 78 | 0.46 | 0.497 | 629 | 280 |
| 78 | 80 | 0.51 | 0.443 | 570 | 32.5 |
| 80 | 82 | 0.93 | 1.06 | 834 | 72.3 |
| 82 | 84 | 0.78 | 0.838 | 586 | 54.5 |
| 84 | 85.45 | 0.65 | 1.82 | 629 | 100.5 |
| 85.45 | 86.1 | 0.57 | 5.18 | 737 | 265 |
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| 86.1 | 88 | 0.73 | 2.17 | 885 | 519 |
|---|---|---|---|---|---|
| 88 | 90 | 0.5 | 0.926 | 519 | 34.1 |
| 90 | 92 | 0.58 | 0.506 | 385 | 47.9 |
| 92 | 94 | 1.53 | 0.863 | 770 | 63.7 |
| 94 | 96 | 1.14 | 0.769 | 765 | 69.2 |
| 96 | 98.3 | 1.66 | 0.859 | 791 | 101.5 |
| 98.3 | 100 | 1.16 | 0.511 | 722 | 35.9 |
| 100 | 102 | 1.45 | 0.727 | 915 | 30.6 |
| 102 | 104 | 1.01 | 0.406 | 549 | 38 |
| 104 | 106 | 2.25 | 0.527 | 827 | 41 |
| 106 | 108 | 0.7 | 0.472 | 521 | 37.8 |
| 108 | 109.2 | 0.41 | 0.464 | 338 | 15.95 |
| 109.2 | 111 | 1.31 | 0.608 | 788 | 49.5 |
| 111 | 112 | 0.7 | 0.469 | 554 | 19.5 |
| 112 | 114 | 0.64 | 0.346 | 426 | 39 |
| 114 | 116 | 0.51 | 0.307 | 328 | 65.1 |
| 116 | 118 | 0.61 | 0.452 | 472 | 57.8 |
| 118 | 120 | 0.23 | 0.21 | 214 | 45 |
| 120 | 122 | 0.46 | 0.24 | 307 | 44.8 |
| 122 | 124 | 0.89 | 0.543 | 630 | 112 |
| 124 | 125.5 | 1.06 | 0.6 | 718 | 236 |
| 125.5 | 126.6 | 0.53 | 0.453 | 321 | 136 |
| 126.6 | 128 | 1.18 | 0.469 | 499 | 133.5 |
| 128 | 130 | 1.65 | 0.508 | 878 | 157 |
| 130 | 132 | 1.54 | 0.738 | 1010 | 263 |
| 132 | 134 | 2.18 | 0.796 | 1130 | 113 |
| 134 | 136 | 3.3 | 1.015 | 1560 | 166.5 |
| 136 | 138 | 2.31 | 0.862 | 1420 | 373 |
| 138 | 140 | 3.5 | 1.955 | 2280 | 289 |
| 140 | 142 | 1.78 | 1.105 | 1660 | 186.5 |
| 142 | 144 | 2.92 | 1.07 | 1740 | 287 |
| 144 | 146 | 2.84 | 1.28 | 2060 | 514 |
| 146 | 148 | 2.55 | 1.21 | 2350 | 542 |
| 148 | 150 | 2.63 | 1.48 | 2330 | 374 |
| 150 | 152 | 2.25 | 0.641 | 1075 | 259 |
| 152 | 154 | 1.49 | 0.67 | 1035 | 157 |
| 154 | 156 | 0.8 | 0.394 | 573 | 104 |
| 156 | 158 | 1.55 | 0.484 | 775 | 123.5 |
| 158 | 160 | 4.33 | 0.881 | 1435 | 126 |
| 160 | 162 | 1.11 | 0.601 | 551 | 62.6 |
| 162 | 164 | 2.77 | 0.827 | 1280 | 175 |
| 164 | 166 | 1.19 | 0.406 | 680 | 40.5 |
| 166 | 168 | 1.02 | 0.484 | 726 | 113.5 |
| 168 | 170 | 1.65 | 0.663 | 990 | 263 |
| 170 | 172 | 1.02 | 0.711 | 617 | 235 |
| 172 | 174 | 0.58 | 0.471 | 602 | 159 |
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| 174 | 176 | 0.87 | 0.413 | 650 | 147.5 |
|---|---|---|---|---|---|
| 176 | 178 | 2.4 | 0.812 | 1345 | 376 |
| 178 | 180 | 2.2 | 1.025 | 1220 | 173.5 |
| 180 | 182 | 1.85 | 1.66 | 1310 | 263 |
| 182 | 184 | 1.7 | 1.48 | 1130 | 165 |
| 184 | 186 | 2.43 | 1.235 | 1410 | 194.5 |
| 186 | 188 | 2.96 | 1.05 | 1090 | 44.3 |
| 188 | 190 | 2.84 | 0.778 | 1170 | 110.5 |
| 190 | 192 | 2.57 | 0.675 | 1245 | 163 |
| 192 | 194 | 2.49 | 0.567 | 1510 | 120 |
| 194 | 196 | 3.31 | 0.408 | 1710 | 293 |
| 196 | 198 | 2.36 | 0.643 | 1400 | 122.5 |
| 198 | 200 | 1.28 | 0.725 | 863 | 97.9 |
| 200 | 202 | 1.76 | 0.817 | 1180 | 77.7 |
| 202 | 203.2 | 0.82 | 0.574 | 642 | 17.4 |
| 203.2 | 204.5 | 1.37 | 0.604 | 714 | 21.3 |
| 204.5 | 206 | 1.44 | 1.455 | 873 | 37.5 |
| 206 | 208 | 1.46 | 1.92 | 963 | 24.4 |
| 208 | 210 | 1.13 | 0.634 | 658 | 26.7 |
| 210 | 212 | 1.21 | 0.473 | 644 | 31.5 |
| 212 | 214 | 1.71 | 0.766 | 793 | 23.3 |
| 214 | 214.9 | 3.67 | 1.35 | 1660 | 21.2 |
| 214.9 | 216 | 2.78 | 1.165 | 1520 | 15.7 |
| 216 | 218 | 3.77 | 1.845 | 2500 | 21.4 |
| 218 | 220 | 4.79 | 1.765 | 2420 | 19.85 |
| 220 | 222 | 1.97 | 0.673 | 796 | 17.7 |
| 222 | 224 | 1.43 | 0.551 | 603 | 17.55 |
| 224 | 226 | 1.34 | 0.683 | 586 | 17.5 |
| 226 | 228 | 2.61 | 0.752 | 923 | 31.4 |
| 228 | 230 | 2.22 | 0.808 | 1080 | 36.9 |
| 230 | 232 | 1.09 | 0.489 | 584 | 18 |
| 232 | 234 | 0.71 | 0.437 | 309 | 15.95 |
| 234 | 236 | 2.07 | 0.416 | 472 | 11.65 |
| 236 | 238 | 1.23 | 0.501 | 557 | 9.33 |
| 238 | 240 | 2.86 | 0.525 | 520 | 21.9 |
| 240 | 242 | 5.46 | 1.165 | 1510 | 33.2 |
| 242 | 244 | 6.9 | 2.3 | 2380 | 143 |
| 244 | 246 | 6.17 | 1.79 | 2270 | 70.3 |
| 246 | 248 | 3.73 | 1.1 | 1480 | 67.4 |
| 248 | 250 | 1.28 | 0.793 | 936 | 165 |
| 250 | 252 | 1.28 | 0.657 | 902 | 263 |
| 252 | 254 | 1.21 | 0.827 | 1120 | 252 |
| 254 | 256 | 1.51 | 1.14 | 1340 | 85.3 |
| 256 | 258 | 1.03 | 0.972 | 1160 | 132.5 |
| 258 | 260 | 1.08 | 0.779 | 939 | 75.8 |
| 260 | 262 | 0.66 | 0.614 | 908 | 40.2 |
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| 262 | 264 | 0.83 | 0.695 | 914 | 38.7 |
|---|---|---|---|---|---|
| 264 | 266 | 0.71 | 0.427 | 630 | 42.1 |
| 266 | 268 | 1.22 | 0.534 | 816 | 44.6 |
| 268 | 270 | 1.64 | 1.365 | 1350 | 60.9 |
| 270 | 272 | 1.38 | 1.36 | 1340 | 73.8 |
| 272 | 274 | 2.75 | 1.775 | 2530 | 160.5 |
| 274 | 276 | 0.93 | 1.225 | 1240 | 42.6 |
| 276 | 278 | 1.59 | 1.875 | 1830 | 40 |
| 278 | 280 | 0.95 | 1.12 | 1140 | 93 |
| 280 | 282 | 1.73 | 2.94 | 2030 | 61.1 |
| 282 | 284 | 1.11 | 0.827 | 917 | 20.9 |
| 284 | 286 | 1.33 | 0.807 | 722 | 28.3 |
| 286 | 288 | 0.78 | 0.802 | 592 | 13.35 |
| 288 | 289.9 | 0.64 | 1.145 | 561 | 19.2 |
| 289.9 | 292 | 0.73 | 0.872 | 477 | 19.2 |
| 292 | 294 | 0.61 | 0.613 | 546 | 26 |
| 294 | 296 | 0.92 | 0.961 | 1090 | 38.8 |
| 296 | 298 | 0.65 | 0.795 | 625 | 37.3 |
| 298 | 300 | 0.79 | 0.781 | 697 | 33.3 |
| 300 | 302 | 0.83 | 0.863 | 915 | 39.2 |
| 302 | 304 | 0.57 | 1.155 | 743 | 24.1 |
| 304 | 306 | 0.62 | 1.25 | 663 | 31.7 |
| 306 | 308 | 0.5 | 0.781 | 543 | 16.65 |
| 308 | 310 | 0.37 | 0.666 | 408 | 14.65 |
| 310 | 312 | 0.73 | 1.45 | 855 | 34.2 |
| 312 | 314 | 0.7 | 1.59 | 751 | 42.2 |
| 314 | 316 | 1.2 | 1.61 | 1080 | 28.2 |
| 316 | 318 | 1.09 | 1.535 | 1020 | 26.6 |
| 318 | 319.8 | 1.35 | 2.19 | 1430 | 33.9 |
| 319.8 | 322 | 0.17 | 1.355 | 119.5 | 6.1 |
| 322 | 324 | 0.03 | 0.135 | 20.2 | 1.13 |
| 324 | 326 | 0.005 | 0.126 | 13.85 | 1.24 |
| 326 | 327.7 | 0.12 | 0.214 | 90.5 | 6.54 |
| 327.7 | 328.4 | 1.25 | 0.775 | 1220 | 75.1 |
| 328.4 | 330 | 1.18 | 0.817 | 1360 | 103.5 |
| 330 | 332 | 1.38 | 0.796 | 1280 | 76.6 |
| 332 | 334 | 1.97 | 1.035 | 1760 | 167 |
| 334 | 336 | 1.14 | 0.74 | 1220 | 85 |
| 336 | 338 | 1.28 | 0.524 | 924 | 80.7 |
| 338 | 340 | 0.97 | 0.455 | 797 | 159.5 |
| 340 | 342 | 0.76 | 0.378 | 556 | 44.9 |
| 342 | 344 | 1.22 | 0.586 | 894 | 99.1 |
| 344 | 346 | 1.44 | 1.315 | 933 | 129 |
| 346 | 348 | 0.36 | 0.279 | 321 | 40.4 |
| 348 | 350 | 0.44 | 0.385 | 398 | 60.2 |
| 350 | 352 | 0.88 | 0.614 | 856 | 113.5 |
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| 352 | 354 | 0.96 | 1.91 | 1210 | 77.6 |
|---|---|---|---|---|---|
| 354 | 356 | 0.81 | 0.465 | 647 | 92.4 |
| 356 | 358 | 0.37 | 0.573 | 273 | 20.4 |
| 358 | 360 | 0.15 | 0.338 | 98.9 | 17.5 |
| 360 | 362 | 0.32 | 0.424 | 220 | 24.9 |
| 362 | 364 | 0.33 | 0.351 | 212 | 17 |
| 364 | 366 | 0.13 | 0.219 | 103 | 8.08 |
| 366 | 368 | 0.59 | 0.549 | 413 | 29.9 |
| 368 | 370 | 0.51 | 0.601 | 471 | 51.8 |
| 370 | 372 | 0.14 | 1.215 | 94.3 | 3.55 |
| 372 | 374 | 0.26 | 1.01 | 243 | 14.35 |
| 374 | 376 | 0.56 | 0.522 | 407 | 25.6 |
| 376 | 378 | 0.54 | 0.318 | 348 | 24.7 |
| 378 | 380 | 0.79 | 0.438 | 438 | 24 |
| 380 | 382 | 0.63 | 0.517 | 472 | 44.5 |
| 382 | 384 | 0.76 | 2.97 | 411 | 39.2 |
| 384 | 385.8 | 0.7 | 2.39 | 445 | 33.6 |
| 385.8 | 388 | 0.23 | 0.234 | 150.5 | 12.55 |
| 388 | 390 | 0.35 | 0.456 | 244 | 16.9 |
| 390 | 391.4 | 0.53 | 0.892 | 435 | 42.8 |
| 391.4 | 393 | 0.54 | 0.907 | 514 | 61.7 |
| 393 | 394.6 | 0.2 | 0.653 | 224 | 29.4 |
| 394.6 | 396 | 0.22 | 0.39 | 232 | 10.45 |
| 396 | 398.2 | 0.44 | 0.835 | 449 | 71.5 |
| 398.2 | 399.2 | 0.48 | 0.641 | 447 | 49.8 |
| 399.2 | 400.4 | 1.23 | 4.9 | 426 | 57.2 |
| 400.4 | 401.2 | 0.14 | 1.595 | 103.5 | 5.73 |
| 401.2 | 402.5 | 0.29 | 1.375 | 258 | 36.9 |
| 402.5 | 404 | 0.35 | 1.03 | 310 | 29.7 |
| 404 | 406 | 0.16 | 0.21 | 130 | 28.3 |
| 406 | 408 | 0.16 | 0.954 | 158.5 | 14.85 |
| 408 | 409.9 | 0.09 | 0.314 | 69.6 | 6.6 |
| 409.9 | 410.2 | 0.46 | 3.47 | 242 | 35.5 |
| 410.2 | 411.3 | 0.34 | 2.56 | 440 | 25.4 |
| 411.3 | 413.5 | 0.63 | 1.675 | 388 | 150 |
| 413.5 | 415 | 0.22 | 0.622 | 365 | 13.15 |
| 415 | 416.1 | 0.62 | 0.599 | 858 | 44.2 |
| 416.1 | 418.5 | 0.39 | 1.28 | 505 | 75.5 |
| 418.5 | 420.1 | 0.14 | 1.07 | 160 | 10.2 |
| 420.1 | 422 | 0.37 | 2.26 | 533 | 78.1 |
| 422 | 424 | 0.4 | 2.87 | 841 | 128.5 |
| 424 | 426 | 0.21 | 0.253 | 132 | 11.8 |
| 426 | 428 | 0.16 | 0.16 | 96.6 | 19.25 |
| 428 | 430 | 0.17 | 0.302 | 129 | 16.8 |
| 430 | 432 | 0.11 | 0.381 | 109.5 | 4.73 |
| 432 | 434 | 0.23 | 0.417 | 237 | 23.7 |
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| 434 | 436 | 0.31 | 0.843 | 376 | 43.5 |
|---|---|---|---|---|---|
| 436 | 438 | 0.21 | 0.308 | 226 | 21.3 |
| 438 | 440 | 0.18 | 0.834 | 201 | 31 |
| 440 | 442 | 0.15 | 0.61 | 172 | 41.2 |
| 442 | 444 | 0.09 | 0.288 | 163 | 13.4 |
| 444 | 446 | 0.1 | 0.55 | 377 | 16.05 |
| 446 | 447.2 | 0.5 | 0.864 | 299 | 352 |
| 447.2 | 448.4 | 1.13 | 1.425 | 946 | 185.5 |
| 448.4 | 450 | 0.09 | 0.263 | 91.4 | 8.82 |
| 450 | 452 | 0.17 | 0.461 | 227 | 22.3 |
| 452 | 454 | 0.14 | 0.428 | 179.5 | 22.4 |
| 454 | 456 | 0.17 | 0.408 | 143 | 5.88 |
| 456 | 458 | 0.28 | 0.486 | 253 | 15.2 |
| 458 | 459.7 | 1.65 | 1.41 | 963 | 129.5 |
| 459.7 | 460.9 | 1.01 | 2.15 | 712 | 110.5 |
| 460.9 | 463 | 0.33 | 0.477 | 185 | 38.5 |
| 463 | 464.5 | 0.1 | 0.117 | 66.8 | 5.26 |
| 464.5 | 466 | 0.54 | 0.385 | 329 | 63.8 |
| 466 | 468 | 0.35 | 0.215 | 118 | 16.6 |
| 468 | 470 | 0.16 | 0.204 | 89.2 | 6.12 |
| 470 | 472 | 0.26 | 0.179 | 161 | 11.15 |
| 472 | 474 | 0.34 | 0.249 | 227 | 29.2 |
| 474 | 476 | 0.22 | 0.144 | 117 | 6.4 |
| 476 | 478 | 0.17 | 0.24 | 77.7 | 11.8 |
| 478 | 480 | 0.45 | 0.355 | 220 | 23.1 |
| 480 | 482 | 0.31 | 0.184 | 172 | 53.1 |
| 482 | 483.5 | 0.55 | 0.331 | 454 | 52 |
| 483.5 | 485 | 0.25 | 0.15 | 154 | 27.9 |
| 485 | 486.5 | 0.27 | 0.408 | 179 | 19.85 |
| 486.5 | 488 | 0.26 | 0.376 | 127.5 | 7.38 |
| 488 | 490 | 0.36 | 0.361 | 226 | 41.6 |
| 490 | 492 | 0.11 | 0.297 | 93.9 | 5.27 |
| 492 | 494 | 0.2 | 0.354 | 149 | 10.35 |
| 494 | 496 | 0.19 | 0.292 | 145.5 | 22 |
| 496 | 498 | 0.18 | 0.206 | 135.5 | 18.75 |
| 498 | 500 | 0.28 | 0.638 | 273 | 24.8 |
| 500 | 502 | 0.43 | 0.468 | 388 | 73.4 |
| 502 | 504 | 0.2 | 0.398 | 173.5 | 22.1 |
| 504 | 506 | 0.2 | 0.194 | 170.5 | 23.7 |
| 506 | 508 | 0.08 | 0.101 | 59.3 | 5.42 |
| 508 | 510 | 0.12 | 0.135 | 79.2 | 6.07 |
| 510 | 512 | 0.72 | 0.711 | 582 | 95.6 |
| 512 | 513.5 | 0.27 | 0.716 | 253 | 24 |
| 513.5 | 514.7 | 0.27 | 0.243 | 196 | 21.5 |
| 514.7 | 516 | 0.26 | 0.317 | 207 | 19 |
| 516 | 518 | 0.29 | 0.34 | 219 | 49.4 |
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| 518 | 520 | 0.5 | 0.451 | 368 | 45.5 |
|---|---|---|---|---|---|
| 520 | 522 | 1.04 | 0.768 | 724 | 30.8 |
| 522 | 524 | 0.34 | 0.366 | 312 | 46.5 |
| 524 | 526 | 0.09 | 0.198 | 126 | 6.99 |
| 526 | 528 | 0.19 | 0.293 | 197.5 | 17.25 |
| 528 | 530 | 0.14 | 0.547 | 191 | 8.21 |
| 530 | 532 | 0.21 | 0.564 | 292 | 15.65 |
| 532 | 534 | 0.12 | 0.284 | 209 | 2.82 |
| 534 | 536 | 0.1 | 0.188 | 136 | 6.14 |
| 536 | 538 | 0.07 | 0.194 | 94.1 | 2.03 |
| 538 | 540 | 0.11 | 0.345 | 192.5 | 9.78 |
| 540 | 542 | 0.33 | 0.898 | 473 | 50.2 |
| 542 | 543.5 | 0.25 | 0.426 | 260 | 16.55 |
| 543.5 | 544.9 | 0.25 | 0.312 | 194.5 | 10.25 |
| 544.9 | 546 | 0.11 | 0.219 | 76.2 | 1.16 |
| 546 | 548 | 0.13 | 0.283 | 139 | 4.39 |
| 548 | 550 | 0.26 | 0.31 | 249 | 16.4 |
| 550 | 552 | 0.18 | 0.194 | 117.5 | 20.9 |
| 552 | 554 | 0.21 | 0.34 | 210 | 12.95 |
| 554 | 556 | 0.52 | 0.695 | 429 | 126 |
| 556 | 557.8 | 0.46 | 0.574 | 519 | 10.3 |
| 557.8 | 560.2 | 0.57 | 1.42 | 698 | 256 |
| 560.2 | 561.5 | 0.27 | 0.611 | 308 | 8.83 |
| 561.5 | 562.8 | 0.22 | 0.345 | 214 | 7.45 |
| 562.8 | 564 | 0.1 | 0.241 | 103.5 | 1.93 |
| 564 | 566 | 0.17 | 0.359 | 227 | 5.4 |
| 566 | 568 | 0.49 | 0.496 | 365 | 49.1 |
| 568 | 570 | 0.14 | 0.343 | 161 | 20.1 |
| 570 | 572 | 0.08 | 0.171 | 77.3 | 6.74 |
| 572 | 574 | 0.07 | 0.165 | 67.9 | 3.84 |
| 574 | 575.1 | 0.11 | 0.203 | 107 | 3.13 |
| 575.1 | 576.5 | 0.2 | 0.345 | 203 | 3.79 |
| 576.5 | 578 | 0.2 | 0.438 | 162.5 | 10.1 |
| 578 | 580 | 0.31 | 0.72 | 306 | 13.35 |
| 580 | 581.3 | 0.23 | 0.602 | 290 | 16.05 |
| 581.3 | 582.3 | 0.24 | 0.982 | 316 | 34.8 |
| 582.3 | 584 | 0.1 | 0.126 | 70.2 | 2.66 |
| 584 | 586 | 0.14 | 0.225 | 142.5 | 14.15 |
| 586 | 588 | 0.11 | 0.19 | 84.9 | 2.51 |
| 588 | 590 | 0.12 | 0.259 | 96.8 | 6.32 |
| 590 | 592 | 0.09 | 0.267 | 97.5 | 1.99 |
| 592 | 594 | 0.07 | 0.239 | 73.3 | 2.05 |
| 594 | 596 | 0.06 | 0.283 | 77.2 | 1.19 |
| 596 | 598 | 0.06 | 0.187 | 61.5 | 1 |
| 598 | 600 | 0.04 | 0.167 | 53.9 | 1.12 |
| 600 | 602 | 0.1 | 0.225 | 113 | 7.54 |
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| 602 | 604 | 0.08 | 0.138 | 72.2 | 4.98 |
|---|---|---|---|---|---|
| 604 | 606 | 0.07 | 0.1 | 39.7 | 1.1 |
| 606 | 608 | 0.14 | 0.187 | 101 | 3.11 |
| 608 | 609.8 | 0.14 | 0.25 | 127 | 5.28 |
| 609.8 | 610.2 | 1.52 | 1.495 | 911 | 35.1 |
| 610.2 | 612 | 0.24 | 0.349 | 206 | 7.75 |
| 612 | 614 | 0.2 | 0.358 | 180.5 | 17.4 |
| 614 | 616 | 0.11 | 0.247 | 120.5 | 3.01 |
| 616 | 618 | 0.1 | 0.181 | 91.6 | 4.22 |
| 618 | 620 | 0.23 | 0.281 | 99.7 | 2.98 |
| 620 | 622 | 0.1 | 2.2 | 131 | 8.48 |
| 622 | 624 | 0.12 | 0.458 | 93.2 | 3.9 |
| 624 | 626 | 0.47 | 0.608 | 617 | 22.2 |
| 626 | 628 | 0.32 | 1.04 | 560 | 91.8 |
| 628 | 629 | 0.61 | 1.125 | 747 | 102 |
| 629 | 630.7 | 0.14 | 0.233 | 156.5 | 12.4 |
| 630.7 | 632.7 | 0.06 | 0.265 | 79.9 | 3.69 |
| 632.7 | 634 | 0.09 | 0.455 | 94.9 | 2.56 |
| 634 | 636 | 0.15 | 0.792 | 250 | 5.25 |
| 636 | 638 | 0.09 | 0.592 | 92.3 | 6.95 |
| 638 | 640 | 0.18 | 0.448 | 228 | 21.5 |
| 640 | 642 | 0.44 | 0.741 | 462 | 25.5 |
| 642 | 644 | 0.21 | 0.2 | 99.4 | 3.24 |
| 644 | 646 | 0.1 | 0.236 | 74.7 | 2.89 |
| 646 | 648 | 0.04 | 0.139 | 40.4 | 2.8 |
| 648 | 650 | 0.05 | 0.133 | 32.9 | 1.77 |
| 650 | 652 | 0.07 | 0.146 | 50.3 | 3.61 |
| 652 | 654 | 0.16 | 0.495 | 162.5 | 1.91 |
| 654 | 656 | 0.24 | 0.623 | 400 | 8.05 |
| 656 | 658 | 0.12 | 0.236 | 165 | 6.42 |
| 658 | 660 | 0.09 | 0.246 | 100.5 | 3.11 |
| 660 | 662 | 0.07 | 0.173 | 47.2 | 1.88 |
| 662 | 664 | 0.08 | 0.395 | 94.1 | 6.81 |
| 664 | 666 | 0.32 | 0.753 | 309 | 2.62 |
| 666 | 668 | 0.05 | 0.16 | 20.1 | 0.65 |
| 668 | 670 | 0.08 | 0.135 | 31.3 | 0.68 |
| 670 | 672 | 0.07 | 0.176 | 33.4 | 1.32 |
| 672 | 674 | 0.1 | 0.194 | 62.8 | 3.69 |
| 674 | 676 | 0.03 | 0.087 | 18.3 | 0.67 |
| 676 | 678 | 0.06 | 0.242 | 36.6 | 0.85 |
| 678 | 680 | 0.04 | 0.241 | 26.7 | 0.71 |
| 680 | 682 | 0.04 | 0.158 | 25 | 1.31 |
| 682 | 684 | 0.06 | 0.203 | 29.2 | 0.86 |
| 684 | 686 | 0.03 | 0.089 | 19.3 | 0.56 |
| 686 | 687.5 | 0.03 | 0.085 | 14.3 | 0.75 |
| 687.5 | 688.9 | 0.03 | 0.168 | 22.6 | 0.69 |
18 March 2020 ASX Announcement ASX: LCL
==> picture [102 x 68] intentionally omitted <==
JORC Code, 2012 Edition – Table 1 report template
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sampling | Nature and quality of sampling (eg cut channels, random | Diamond drilling is carried out to produce HQ and NQ core. |
| techniques | chips, or specific specialised industry standard | Following verification of the integrity of sealed core boxes and the core within |
| measurement tools appropriate to the minerals under | them at the Company’s core shed in Quinchia, the core is ‘quick logged’ by a | |
| investigation, such as down hole gamma sondes, or | Project Geologist and marked for sampling. Following the marking of the cutting | |
| handheld XRF instruments, etc). These examples should | line and allocation of sample numbers, allowing for insertion of QAQC samples, | |
| not be taken as limiting the broad meaning of sampling. | the core is cut by employees in the company’s facility within the core-shed. | |
| Include reference to measures taken to ensure sample | Nominally core is cut in half and sampled on 2m intervals, however the interval | |
| representivity and the appropriate calibration of any | may be reduced by the Project Geologist based on the visual ‘quick log’. | |
| measurement tools or systems used. | Samples are bagged in numbered calico sacks and these placed in heavy duty | |
| Aspects of the determination of mineralisation that are | plastic bags with the sample tag. Groups of 5 samples are bagged in a hessian | |
| Material to the Public Report. | sack, labelled and sealed, for transport. | |
| In cases where ‘industry standard’ work has been done this | Sample preparation is carried out by ALS’ Laboratory in Medellin where the | |
| would be relatively simple (eg ‘reverse circulation drilling | whole sample is crushed to -2mm and then 1kg split for pulverising to - | |
| was used to obtain 1 m samples from which 3 kg was | 75micron. | |
| pulverised to produce a 30 g charge for fire assay’). In other | Splits are then generated for fire assay (Au-AA26) and analyses for an | |
| cases more explanation may be required, such as where | additional 48 elements using multi-acid (four acid) digest with ICP finish | |
| there is coarse gold that has inherent sampling problems. | (MEMS61) at ALS’ laboratory in Lima, Peru. | |
| Unusual commodities or mineralisation types (eg submarine | ||
| nodules) may warrant disclosure of detailed information. | ||
| Drilling | Drill type (eg core, reverse circulation, open-hole hammer, | The Tesorito drilling program is a diamond drilling program using HQ diameter |
| techniques | rotary air blast, auger, Bangka, sonic, etc) and details (eg | core. In the case of operational necessity this will be reduced to NQ core. |
| core diameter, triple or standard tube, depth of diamond | Where ground conditions permit, core orientation is conducted on a regular | |
| tails, face-sampling bit or other type, whether core is | basis. | |
| _oriented and if so, by what method, etc). _ | ||
| Drill sample | Method of recording and assessing core and chip sample | The drillers are required to meet a minimum recovery rate of 95%. |
| recovery | recoveries and results assessed. | On site, a Company employee is responsible for labelling (wood spacer block) |
| Measures taken to maximise sample recovery and ensure | the beginning and end depth of each drill run plus actual and expected | |
| representative nature of the samples. | recovery in meters. This and other field processes are audited on a daily basis. | |
| Whether a relationship exists between sample recovery and | On receipt the core is visually verified for inconsistencies including depth | |
| grade and whether sample bias may have occurred due to | labels, degree of fracturing (core breakage versus natural), lithology | |
| preferential loss/gain of fine/coarse material. | progression etc. If the core meets the required conditions it is cleaned, core | |
| pieces are orientated andjoined,lengths and labellingare verified,and |
==> picture [102 x 68] intentionally omitted <==
18 March 2020 ASX Announcement ASX: LCL
| Criteria JORC Code explanation Commentary |
|
|---|---|
| geotechnical observations made. The core box is then photographed. Orientated sections of core are aligned, and a geology log prepared. Following logging, sample intervals are determined and marked up and the cutting line transferred to the core. Core quality is, in general, high and far exceeding minimum recovery conditions. |
|
| 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. Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. The total length and percentage of the relevant intersections logged. Logging is carried out visually by the Project Geologists focusing on lithology, structure, alteration and mineralization characteristics. Initially a ‘quick log’ is carried out to guide sampling and this is then followed by detailed logging. The level of logging is appropriate for exploration and initial resource estimation evaluation. All core is photographed following the initial verification on receipt of the core boxes and then again after the ‘quick log’, cutting and sampling. Ie half core. All core is logged and sampled, nominally on 2m intervals respectively but in areas of interest more dense logging and sampling may be undertaken. On receipt of the multi-element geochemical data this is interpreted for consistency with the geologic logging. |
|
| 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. After logging and definition of sample intervals by the geologist, the marked core is cut in half using a diamond saw in a specially designed facility on site. All core is cut and sampled. The standard sample interval is 2m but may be varied by the geologist to reflect lithology, alteration or mineralization variations. As appropriate, all half or quarter core generated for a specific sample interval is collected and bagged. The other half of the core remains in the core box as a physical archive. The large size (4-8kg) of individual samples and continuous sampling of the drill hole, provides representative samples for exploration activities. Through the use of QAQC sample procedure in this phase of drilling, any special sample preparation requirements eg due to unexpectedly coarse gold, will be identified and addressed prior to the resource drilling phase. |
|
| Quality of assay data and laboratory tests The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading Gold assays will be obtained using a lead collection fire assay technique (AuAA26) and analyses for an additional 48 elements obtained using multi-acid (four acid) digest with ICP finish (ME-MS61) at ALS’ laboratory in Lima, Peru. Fire assay for gold is considered a “total” assay technique. An acid (4 acid) digest is considered a total digestion technique. However, for |
18 March 2020 ASX Announcement ASX: LCL
==> picture [102 x 68] intentionally omitted <==
| Criteria JORC Code explanation Commentary |
|
|---|---|
| times, calibrations factors applied and their derivation, etc. 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. some resistant minerals, not considered of economic value at this time, the digestion may be partial e.g. Zr, Ti etc. No field non-assay analysis instruments were used in the analyses reported. Los Cerros uses certified reference material and sample blanks and field duplicates inserted into the sample sequence. Geochemistry results are reviewed by the Company for indications of any significant analytical bias or preparation errors in the reported analyses. Internal laboratory QAQC checks are also reported by the laboratory and are reviewed as part of the Company’s QAQC analysis. The geochemical data is only accepted where the analyses are performed within acceptable limits. |
|
| Verification of sampling and assaying The verification of significant intersections by either independent or alternative company personnel. The use of twinned holes. Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. Discuss any adjustment to assay data. All digital data received is verified and validated by the Company’s Competent Person before loading into the assay database. Over limit gold or base metal samples are re-analysed using appropriate, alternative analytical techniques (Au-Grav22 50g and OG46). Reported results are compiled by the Company’s geologists and verified by the Company’s database administrator and exploration manager. No adjustments to assay data were made. |
|
| Location of data points Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. Specification of the grid system used. Quality and adequacy of topographic control. The drill hole is located using a handheld GPS and Lider DTM. This has an approximate accuracy of 3-5m considered sufficient at this stage of exploration. On completion of the drilling program the collars of all holes will be surveyed using high precision survey equipment. Downhole deviations of the drill hole are evaluated on a regular basis and recorded in a drill hole survey file to allow plotting in 3D. The grid system is WGS84 UTM Z18N. |
|
| Data spacing and distribution 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 Resource and Ore Reserve estimation procedure(s) and classifications applied. Whether sample compositing has been applied. The interpretation of surface mapping and sampling relies on correlating isolated points of information that are influenced by factors such as weathering, accessibility and sample representivity. This impacts on the reliability of interpretations which are strongly influenced by the experience of the geologic team. Structures, lithologic and alteration boundaries based on surficial information are interpretations based on the available data and will be refined as more data becomes available during the exploration program. It is only with drilling, that provides information in the third dimension, that the geologic model can be refined. |
|
| Orientation of data in Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this Drill hole is preferentially located in prospective area. All drillholes are planned to best test the lithologies and structures as known |
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18 March 2020 ASX Announcement ASX: LCL
| Criteria JORC Code explanation Commentary |
|
|---|---|
| relation to geological structure is known, considering the deposit type. If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. taking into account that steep topography limits alternatives for locating holes. Drill holes are oriented to determine underlying lithologies and porphyry vectors and to intercept the two principal sets of veining. |
|
| Sample security The measures taken to ensure sample security. All core boxes are nailed closed and sealed at the drill platform. On receipt at the Quinchia core shed the core boxes are examined for integrity. If there are no signs of damage or violation of the boxes, they are opened and the core is evaluated for consistency and integrity. Only then is receipt of the core formally signed off. The core shed and all core boxes, samples and pulps are secured in a closed Company facility at Quinchia secured by armed guard on a 24/7 basis. Each batch of samples are transferred in a locked vehicle and driven 165 km to ALS laboratories for sample preparation in Medellin. The transfer is accompanied by a company employee. |
|
| Audits or reviews The results of any audits or reviews of sampling techniques and data. At this stage no audits have been undertaken. |
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral | Type, reference name/number, location and ownership | The Exploration Titles were validly issued as Concession Agreements pursuant |
| tenement and | including agreements or material issues with third parties |
to the Mining Code. |
| land tenure | such as joint ventures, partnerships, overriding royalties, | The Concession Agreement grants its holders the exclusive right to explore for |
| status | native title interests, historical sites, wilderness or national | and exploit all mineral substances on the parcel of land covered by such |
| park and environmental settings. | concession agreement. | |
| The security of the tenure held at the time of reporting along | There are no outstanding encumbrances or charges registered against the | |
| with any known impediments to obtaining a licence to | Exploration Title at the National Registry. | |
| operate in the area. | ||
| Exploration | Acknowledgment and appraisal of exploration by other | Artisanal gold production was most significant from the Miraflores mines during |
| done by other | parties. |
the 1950s. Interest was renewed in the area in the late 1970s. In the 1980s the |
| parties | artisanal mining cooperative "Asociación de Mineros de Miraflores" (AMM) was | |
| formed. | ||
| In 2000, the Colombian government's geological division, INGEOMINAS, with |
| 18 March 2020 ASX Announcement ASX: LCL |
|
| Criteria JORC Code explanation Commentary |
|
| the permission of the AMM, undertook a series of technical studies at Miraflores, which included geological mapping, geochemical and geophysical studies, and non-JORC compliant resource estimations. In 2005, Sociedad Kedahda S.A. (Kedahda), now called AngloGold Ashanti Colombia S.A., a subsidiary of AngloGold Ashanti Ltd., entered into an exploration agreement with the AMM, and carried out exploration including diamond drilling in 2005 to 2007 at Miraflores, completing 1,414.75m. In 2007 Kedahda optioned the project to B2Gold Corp. (B2Gold), which carried out exploration including additional diamond drilling from 2007 to 2009. B2Gold made a NI 43-101 technical study of the Miraflores Project in 2007. On 24 March 2009, B2Gold advised the AMM that it had decided to not make further option payments and the property reverted to AMM under the terms of the option agreement. Seafield Resources Ltd. (Seafield) signed a sale-purchase contract with AMM to acquire a 100% interest in the Mining Contract on 16 April 2010. Seafield completed the payments to acquire 100% of rights and obligations on the Miraflores property in 30 November 2012. AMM stopped the artisanal exploitation activities in the La Cruzada tunnel on the same date, and transferred control of the mine to Seafield. Since June 2010, Seafield drilled 63 drillholes for a total of 22,259m on the Miraflores Project adjacent to Tesorito. The initial exploration undertaken by Seafield at Tesorito in 2012 and 2013 included systematic geological mapping, rock and soil sampling, followed by trenching within the area of anomalous Au and Cu in soils. Seafield commissioned an Induced Polarisation (IP) survey over the Tesorito Prospect in August 2012 and undertook a three-hole diamond drilling program for a total of 1,150.5m in 2013. |
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| Geology Deposit type, geological setting and style of mineralisation. The Tesorito area is underlain mainly by fine to coarse grained, intrusive porphyritic rocks of granodioritic to dioritic composition, which intrude an andesite porphyry body of the Miocene Combia formation, Tertiary sandstones and mudstones of the Amaga Formation, as well as basaltic rocks of the Barroso Formation of Cretaceous age. The intrusives suite show variable intensities of hydrothermal alteration, including potassic alteration overprinted by quartz-sericite and sericite-chlorite alteration. NNE to EW faulting controls the intrusive emplacement and mineralization, including faulting of contacts between the rock units. The depth of sulphide oxidation observed in the drill holes is approximately20m. |
18 March 2020 ASX Announcement ASX: LCL
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| Criteria JORC Code explanation Commentary |
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| Gold, copper and molybdenite observed in the intrusive rocks is typical of Au- Cu-Mo rich porphyry deposit; mineralisation occurs as sulphides and magnetite in disseminations as well as in veinlets and stockworks of quartz. Pyrite, chalcopyrite and molybdenite have been recognised. |
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| Drill hole Information A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes: o easting and northing of the drill hole collaro elevation or RL (Reduced Level – elevation above sealevel in metres) of the drill hole collar o dip and azimuth of the holeo down hole length and interception deptho 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. HOLE EASTING NORTHING RL (m) AZIMUTH DIP EOH (m) TSDH16 423782 584506 1245.65 245 65 688.9 TSDH17 423782 584506 1245.653 190 60 266.15 TSDH20 423747 584567 1257.57 165 60 400 TSDH21 423705.5 584528.7 1258 90 70 341.2 |
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| Data aggregation methods In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated. Where aggregate intercepts incorporate short lengths of high grade 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. No metal equivalent values have been stated. Quoted intervals use a weighted average compositing method of all assays within the interval. Uncut intervals include values below 0.1 g/t Au. No cut of high grades has been done. All widths quoted are intercept widths, not true widths, as there is insufficient information at this stage of exploration to know the geometries within the system. |
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| Relationship between mineralisation widths and intercept lengths These relationships are particularly important in the reporting of Exploration Results. If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported. 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’). The results reported in this announcement are considered to be of an early stage in the exploration of the project. Mineralisation geometry is not accurately known as the exact number, orientation and extent of mineralised structures are not yet determined. |
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| Diagrams Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery Geological maps showing the location of drill holes and exploration results includingdrillingover the Tesorito Prospect is shown in the bodyof the |
| 18 March 2020 ASX Announcement ASX: LCL |
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| Criteria JORC Code explanation Commentary |
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| being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views. announcement. |
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| Balanced reporting Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results. Reporting is considered balanced. |
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| Other substantive exploration data Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances. A ground magnetic survey that covered the Chuscal and Tesorito Prospects was performed in 2019 and presented two magnetic high anomalies that are spatially related to the soil gold and molybdenum anomalies. The magnetic high anomalies appear associated with the presence of potassic alteration and quartz-magnetite veining and stockworks. |
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| Further work The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step- out drilling). Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive. Additional drilling is required to systematically test the nature and extent of mineralisation. The objective of the Tesorito drill program is to test two anomalous zones, the southern and northern Tesorito targets. |