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Further High-Grade Silver&Gold Results at Pyramid

7 Dec 2021 07:00

RNS Number : 7290U
Tertiary Minerals PLC
07 December 2021
 

 

07 December 2021

 

Tertiary Minerals plc

("Tertiary" or "the Company")

 

Further High-Grade Silver and Gold Results at Pyramid

 

Tertiary Minerals plc (AIM: TYM) is pleased to provide an update from its Pyramid Silver-Gold Project in Nevada, USA, where analytical results from a recently completed surface sampling and mapping programme continue to return high-grade silver and gold grades. The majority of these new samples were collected over a wide area along the recently established zone of silver mineralisation at the North Ruth target. North Ruth has a target strike length of at least 530 metres (announced 14 October 2021).

 

Highlights:

 

· Rock chip and grab samples collected during further detailed mapping programme

 

· Analytical results reporting significant1 silver mineralisation in 34 of 37 samples

 

· 4 high-grade2 samples reporting silver grades of 1,286 g/t, 889 g/t, 522 g/t and 513 g/t

 

· Includes 4 samples reporting gold grades of 2.72 g/t, 1.67 g/t, 1.30 g/t and 1.20 g/t

 

· Mapping and sampling providing key input to modelling and design of drill programme

 

Commenting today, Managing Director Patrick Cullen said: "These are very encouraging results and include the highest silver grades we have sampled at North Ruth to date. While silver is the primary target, it is also excellent to see the presence of reportable gold grades.

"We have steadily built our dataset and our understanding of the North Ruth target over a series of work programmes. This has allowed us to identify mineralised structures with increasing confidence, as reflected in these results.

"I have been on site with our geologist in Nevada over recent days, examining previous work and planning for an upcoming drill program and I look forward to providing updates."

 

Results:

Sample

Area

Type

Width (m)

Ag (g/t)

Ag (oz/ton)

Au (g/t)

PR-305

North Ruth

Rock Chip

1.20

253

7.38

0.27

PR-309

North Ruth

Rock Chip

1.00

513

14.96

0.81

PR-311

North Ruth

Rock Chip

1.50

231

6.74

0.15

PR-315

North Ruth

Rock Chip

3.00

522

15.23

0.36

PR-318

North Ruth

Rock Chip

1.50

1,286

37.51

0.64

PR-319

North Ruth

Grab

-

889

25.93

0.46

PR-321

North Ruth

Rock Chip

1.00

238

6.94

1.67

PR-322

North Ruth

Rock Chip

0.60

210

6.13

0.65

PR-332

North Ruth

Rock Chip

1.00

231

6.74

2.72

PR-339

North Ruth

Grab

-

270

7.88

0.66

PR-334

-

Rock Chip

1.20

204

5.95

1.46

 

A summary of high-grade2 silver results is shown in the table above. The location plan of the samples and updated mapping may be accessed here http://www.rns-pdf.londonstockexchange.com/rns/7290U_1-2021-12-6.pdf or on the Company's website. Further detailed information may be found below.

 

For more information please contact:

Tertiary Minerals plc:

Patrick Cullen, Managing Director

+44 (0) 1625 838 679

SP Angel Corporate Finance LLP

Nominated Adviser and Broker

Richard Morrison

+44 (0) 203 470 0470

Caroline Rowe

 

Peterhouse Capital Limited

Joint Broker

Lucy Williams

+ 44 (0) 207 469 0930

Duncan Vasey

 

   

 

Market Abuse Regulation (MAR) Disclosure:

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 which forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018 ("MAR"). Upon the publication of this announcement via Regulatory Information Service ("RIS"), this inside information is now considered to be in the public domain.

 

Detailed Information:

Background

The Pyramid Gold-Silver Project is located in north-central Nevada, USA and is targeting epithermal gold-silver mineralisation at the northwest end of the prolific past producing Walker Lane Mineral Belt.

On 11 January 2021, the Company announced results from a soil sampling programme carried out to confirm, and determine the extent of, an open-ended gold and multi-element soil anomaly originally defined in the 1980s by Battle Mountain Gold Company. A number of significant new gold and silver-in-soil anomalies were identified and named the North Ruth, Western Line and Western Splay anomalies.

In late January 2021, follow up rock chip sampling highlighted the potential for in situ mineralisation and in particular at the 800m long North Ruth soil anomaly where grab sampling identified areas of silicified and brecciated Tertiary-age volcanics within the anomaly with one sample of spoil from an old shaft containing 314 g/t silver (9.16 ounces/ton) amongst eight samples averaging 91 g/t silver (2.67 ounces/ton) and 0.26 g/t gold.

On 3 June 2021, the Company announced results from its Phase 1 trenching programme which was designed to test various gold and silver soil anomalies. Two trenches, Nos. 1 and 2, were located over the north and south ends of the North Ruth soil anomaly, respectively. Assay results from Trench No.1 revealed a 46m continuous thickness of mineralisation grading 61g/t silver (1.78 ounces/ton) and 0.09 g/t gold. The next nearest trench, Trench No.2, some 460m along strike, cut 3.05 m grading 260 g/t silver (7.58 ounces/ton) and 0.27 g/t gold.

In August 2021, the Company conducted a Phase 2 trenching programme at Pyramid using a larger and more powerful excavator. Trench 1 EXT extended the grade of the mineralisation cutting 58.98m of continuous silver mineralisation grading 73g/t silver (2.14 ounces/ton) with 0.13g/t gold including two high grade intervals of 3.35m grading 218g/t silver (6.37 ounces/ton) with 0.25g/t gold and 2.13m grading 595g/t silver (17.35 ounces/ton) with 0.66g/t gold.

Trenches, No. 7 and No. 8, were excavated along strike from Trench 1 EXT. Trench No.7, located approximately 73m to the northwest, cut 2.44m grading 64g/t silver (1.88 ounces/ton) with 0.47g/t gold. Trench 8 was located 65m southeast of Trench 1 EXT and cut 26.80m grading 37g/t silver (1.08 ounces/ton) with 0.12g/t gold which included a higher-grade zone of 6.09m grading 102g/t silver (2.96 ounces/ton) with 0.26g/t gold. Trench 8 also cut a separate gold bearing zone 6.09m wide grading 0.73g/t gold with negligible silver.

October 2021 Mapping and Sampling Programme

In October 2021 the Company conducted a mapping and sampling programme at North Ruth to provide additional geological and grade control for drill planning. Additional samples were collected from the wider project area during the work programme.

Previous exploration had defined zones of silver-gold bearing silicification at North Ruth which were mapped and sampled along strike. Pertinent information such as dip, strike, joining and degree of silicification was recorded at each sample site and additional sites not subjected to sampling. The mapping has refined historic data and indicates the mineralised zones generally have a southwest dip of between 70 and 80°. A total of 37 samples were collected, 34 of which were located at North Ruth.

Samples were submitted to Paragon Geochemical Laboratories for sample preparation and analysis.

Samples PR‑318 and PR-319, located approximately 95m southeast of Trench 8 and 300m northwest of Trench 2, returned silver grades of 1,286 g/t and 889 g/t, respectively. Additional samples returning significant and high-grade silver grades are located within the mid-North Ruth area suggesting mineralised continuity along strike.

An additional 4 samples were collected from the southeast of the project area where trenching was planned but not conducted due to time constraints in the Phase 2 trenching programme. All 4 samples contained significant silver mineralisation and highlight the potential for additional exploration targets going forward.

Notes:

1. Significant is defined as a rock chip sample grading a minimum of 15 g/t silver.

 

2. High-grade is defined as a rock chip sample grading a minimum of 200 g/t silver.

 

3. Units:

Rock samples reported in g/t = grammes/tonne

1 g/t = 0.029167 ounce/ton (i.e. troy ounces/US ton)

1ppm = 1 g/tonne

1 (Troy) ounce =31.105g

 

4. Rock chip samples were collected by consulting Geologist Ivan Johnson and were transported under chain of custody to Paragon Geochemical facilities in Reno, Nevada for sample preparation. Samples were crushed to 85% passing 200mesh using PREP-RMB. Gold was analysed by method Au-AA30 which comprises 30g fire assay with aqua regia digest/AAS finish. Multielement analysis (including Ag) was performed using method 33‑MA-OES which comprised a 4-acid digest with ICP/OES finish. Ag overrange analysis was performed using method Ag-Gr30, a 30g fire assay with gravimetric finish. Paragon carries out duplicate and standard materials analysis as part of its internal QA/QC procedures.

 

5. The information in this release has been compiled and reviewed by Mr. Patrick Cheetham (MIMMM, MAusIMM) who is a qualified person for the purposes of the AIM Note for Mining and Oil & Gas Companies. Mr. Cheetham is a Member of the Institute of Materials, Minerals & Mining and also a member of the Australasian Institute of Mining & Metallurgy.

 

6. The news release may contain certain statements and expressions of belief, expectation or opinion which are forward looking statements, and which relate, inter alia, to the Company's proposed strategy, plans and objectives or to the expectations or intentions of the Company's directors. Such forward-looking statements involve known and unknown risks, uncertainties, and other important factors beyond the control of the Company that could cause the actual performance or achievements of the Company to be materially different from such forward-looking statements. Accordingly, you should not rely on any forward-looking statements and save as required by the AIM Rules for Companies or by law, the Company does not accept any obligation to disseminate any updates or revisions to such forward-looking statements.

 

Note to Editors:

 

Tertiary Minerals plc (LON: TYM) is an AIM-listed mineral exploration and development company whose strategic focus is on energy transition and precious metals. The Company's portfolio of projects are located in stable and democratic, geologically prospective, mining-friendly jurisdictions. Tertiary's principal activities are the discovery and development of copper, gold and silver resources in Nevada and in Zambia.

 

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