- Results were received from 206 new channel samples from the Puerto Rico Mine at the Puerto Rico Project, completing the detailed underground channel sampling program of the Puerto Rico, San Jose and Zaragoza Mines.
- A total of 13 separate manto horizons were identified in the three levels of workings, of which nine were accessible for sampling. Significant results include:
Manto 7 average – 101 g/t Ag, 9.5% Pb, 20.0% Zn (29.4% ZnEq1), over 1.8m;Manto 12 average – 116 g/t Ag, 6.1% Pb, 22.5% Zn (29.5% ZnEq1), over 1.4m;Manto 8 average – 253 g/t Ag, 10.8% Pb, 11.7% Zn (24.8% ZnEq1), over 1.1m.
- 17 near-vertical mineralized faults and fractures (chimneys) were identified. These chimneys are interpreted to be feeder structures for the manto mineralization. Significant results include:
Chimney NW1 average – 279 g/t Ag, 27% Pb, 26.5% Zn (53.1% ZnEq1), over 0.8m;Chimney NE10 average – 484 g/t Ag, 22.7% Pb, 22.1% Zn (48.8% ZnEq1) over 0.6m;Chimney NE11 average – 701 g/t Ag, 43.5% Pb, 5.9% Zn (53.1% ZnEq1), over 0.5m.
TORONTO, Sept. 27, 2018 (GLOBE NEWSWIRE) — Discovery Metals Corp. (TSX-V: DSV) (“Discovery” or the “Company”) is pleased to announce results from its detailed underground channel sampling program at the Puerto Rico Mine (“PRM”), one of three historic mines comprising its flagship Puerto Rico project (“Puerto Rico” or “the Project”) in northern Coahuila State, Mexico.
Taj Singh, P.Eng, President and CEO, states, “Puerto Rico is advancing quickly and systematically, with all three historic mines now completely mapped and sampled. These current results prove that robust, high-grade mineralization remains in all three historic mines. The distribution of mineralization in all of the historic mines, combined with the structural characteristics identified in our mapping and modeling work, demonstrate the continuity and significant potential of mineralization at the Project. We have gained invaluable insight into the overall system which will aid us in vectoring towards more mineralization and possibly the source. The results of the upcoming airborne mag and EM survey, scheduled for October, will provide the final inputs required for the placement of drill holes for the Project’s maiden drill program. The drill permitting process at Puerto Rico is almost complete and we estimate the receipt of permits within the next one to two months.”
Results & DiscussionThe PRM hosts approximately 650m of underground drifts and stopes over three levels that span a vertical extent of 60m and cover a horizontal extent of approximately 200m (strike) by 30m (width) in a northwesterly direction. The underground workings (from bottom to top: Haulage, Stairs, and Upper Levels) are host to strongly mineralized Ag-Pb-Zn mantos and chimneys. Several mantos are well exposed in the underground workings, where they follow bedding in flat-lying to gently folded strata, and locally step across limestone beds. The mineralized vertical faults and fracture zones and are considered chimneys and extend between mine levels.
A total of 206 channel samples were collected at approximately 5m intervals along both sides of the entire length of the developed workings (across mineralization and wallrock). Sampling methodology is outlined in detail in the Technical Notes section of this news release. Sampling locations and thicknesses were somewhat constrained by the extent of historic workings.
The table below summarizes the significant results by level and mineralization type:
|PRM Level & Mineralization Type|| # of channel
|Average grades (thickness-weighted)|
Host Structure Descriptions:
Haulage Level Mantos (lowest elevation):
Stairs Level Mantos:
Upper Level Mantos:
A full table of results and maps related to this news release can be found at:https://dsvmetals.com/site/assets/files/PRM-Sept2018-FINAL_APPENDIX.pdf
Sample analysis and QA/QC Program: The rock chip and channel samples were taken perpendicular to mineralization, with variable length (across width of mineralization, typically 0.5m-2.5m) and a minimum channel thickness of 60mm and minimum channel depth of 30mm.The entire volume of each chip or channel sample was transported from site by ALS and prepared at the ALS lab facilities in Zacatecas and Chihuahua facilities, with splits of pulps shipped to the ALS lab in Vancouver for analysis. Samples were analyzed for gold using (1) a standard fire assay with a 30-gram pulp and Atomic Absorption (AA) finish for gold; and (2) Thirty-element inductively coupled plasma atomic emission spectrometry (“ICP-AES”). Over limit sample values were re-assayed for: (1) values of zinc > 10%; (2) values of lead > 10%; and (3) values of silver > 100 g/t. Samples were re-assayed using the ME-OG62 (high-grade material ICP-AES) analytical package. For values of zinc or lead greater than 30%, a third re-assay using the Zn-VOL50 or Pb-VOL50 (potentiometric titration) analytical method was used while values of silver greater than 1,500 g/t, were re-assayed using the Ag-CON01 analytical method, a standard fire assay with 30g pulp and gravimetric finish. Certified standards and blanks were routinely inserted into all sample shipments to ensure integrity of the assay process.
Qualified Person: Gernot Wober, P.Geo, Vice-President of Exploration of Discovery Metals Corp., is the Company’s designated Qualified Person for this news release within the meaning of National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”) and has reviewed and validated that the information contained in this news release is accurate.
1All numbers in this news release are rounded and assays are uncut and undilute. ZnEq and AgEq calculations are based on USD $15/oz Ag, $1.25/lb Zn, $1.00/lb Pb, $3.00/lb Cu and do not consider metallurgical recovery.
/EIN News/ — 2For a full table of results, maps and graphics related to this news release, please refer to: https://dsvmetals.com/site/assets/files/PRM-Sept2018-FINAL_APPENDIX.pdf
ABOUT DISCOVERY METALS
Discovery Metals is focused on discovering and advancing high grade polymetallic deposits in a recently assembled land package of approximately 300,000 hectares over a large and historic mining district in northern Coahuila State, Mexico. The portfolio of seven key properties, all with shallow high-grade silver-zinc-lead mineralization, is situated in a world class CRD belt that stretches from southeast Arizona to central Mexico. The land holdings contain numerous historical direct-ship ore workings with approximately 4km of underground development. No modern exploration or exploration drill testing has been carried out on the properties prior to Discovery’s time on the projects.
On Behalf of the Board of Directors“Taj Singh”
Taj Singh, M.Eng, P.Eng, CPA
For further information contact: [email protected]
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
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