GR Silver Updates the Bulk Sampling Test Mining Program at the Plomosas Project
Sampling Returns 2.5 m @ 1,625 g/t Ag, 14.1 g/t Au in a New Geological Structure.
- To date, 280 m of underground development have been completed, and 15,170 t of BSTM material have been processed from the
San Juan Area , from which 235 t of concentrate have been produced, as summarized in Table 1. - The processing of BSTM material from the
San Juan Area has resulted in silver recoveries ranging from 84% to 92% and gold recoveries ranging from 60% to 75%. The BSTM program has allowed the processing of lead concentrates containing high-grade silver and gold to be commercially acceptable by off-takers. - The work on-site supports the definition of a high-grade silver-gold zone not represented in the current NI 43-101 Mineral Resource estimate, allowing better delineation of key geological controls hosting significant mineralization for future drilling.
- The channel sampling program, as part of the BSTM program (Table 2), has reported high-grade results, including 2.5 m @ 1,625 g/t Ag and 14.1 g/t Au. This new zone was recently discovered, hosted by a vein/hydrothermal breccia within a NE-trending fault zone in the
San Juan Area . These structures were not integrated in the current NI 43-101 Mineral Resource estimate, creating potential for future resource expansion in theSan Juan Area . - Underground control sampling during the BSTM program and site preparation has revealed new geological structures hosting silver- and gold-rich hydrothermal breccias not previously incorporated in the geological model (Figure 1).
Table 1 – Concentrate Assay Results San Juan Area Bulk Sampling Test Mining Program –
Concentrate ID |
Tonnes |
Ag g/t |
Au g/t |
Pb% |
24 12 |
8.4 |
12,838 |
10.1 |
7.66 |
24 14 |
9.8 |
11,061 |
12.0 |
5.95 |
24 16 |
8.4 |
10,167 |
10.2 |
4.67 |
24 17 |
13.0 |
8,233 |
6.8 |
4.11 |
24 20 |
18.5 |
9,861 |
8.4 |
3.91 |
24 25 |
28.3 |
5,112 |
5.5 |
8.09 |
24 28 |
28.3 |
5,639 |
3.5 |
20.40 |
24 30 |
17.8 |
8,454 |
12.0 |
12.00 |
24 31 |
12.8 |
10,685 |
14.9 |
11.60 |
24 33 |
12.1 |
9,220 |
10.0 |
10.96 |
24 36 |
8.6 |
10,115 |
10.4 |
8.03 |
24 38 |
11.9 |
9,407 |
10.3 |
10.02 |
24 39 |
14.1 |
6,154 |
5.7 |
20.26 |
24 45P |
21.7 |
11,420 |
8.9 |
na |
24 49P |
21.1 |
11,475 |
9.3 |
na |
Total Tonnes |
235.0 |
|
Table 2 summarizes channel sample results obtained during recent underground development and bulk sampling in the
The BSTM activities will focus on the
The activities of the BSTM program in the
Table 2 – Channel Sample Assay Results - San Juan Area Bulk Sampling Test Mining –
Sample ID |
East (m) |
North (m) |
RL(m) |
Length |
Ag g/t |
Au g/t |
Pb % |
Zn % |
73534 |
448143.371 |
2550607.03 |
873 |
0.3 |
637 |
0.51 |
0.19 |
0.21 |
73535 |
448110.684 |
2550641.25 |
877 |
1 |
4 |
0.01 |
0.01 |
0.23 |
73536 |
448133.091 |
2550663.55 |
859 |
1.3 |
160 |
0.29 |
0.39 |
0.42 |
73537 |
448123.070 |
2550662.51 |
861 |
0.7 |
499 |
0.50 |
1.07 |
1.40 |
73538 |
448124.393 |
2550662.74 |
860 |
0.5 |
338 |
0.29 |
0.73 |
0.75 |
73539 |
448125.604 |
2550662.60 |
859 |
1 |
1,095 |
0.33 |
1.18 |
3.22 |
73542 |
448162.587 |
2550774.01 |
871 |
2 |
133 |
0.65 |
0.09 |
0.17 |
73543 |
448128.729 |
2550646.41 |
869 |
1 |
70 |
0.03 |
0.09 |
0.38 |
73544 |
448092.982 |
2550658.83 |
863 |
0.5 |
126 |
0.04 |
0.15 |
0.71 |
73548 |
448177.548 |
2550596.40 |
861 |
1.5 |
64 |
0.26 |
0.07 |
0.15 |
73551 |
448128.279 |
2550651.87 |
867 |
1 |
372 |
0.10 |
0.46 |
2.32 |
73552 |
448128.194 |
2550650.32 |
867 |
1 |
927 |
1.69 |
6.31 |
5.61 |
73553 |
448133.404 |
2550670.48 |
859 |
1.7 |
3 |
0.01 |
0.01 |
0.03 |
73554 |
448130.953 |
2550642.99 |
869 |
1 |
768 |
0.74 |
2.26 |
2.22 |
73556 |
448212.886 |
2550563.13 |
855 |
1.2 |
465 |
0.98 |
8.15 |
10.39 |
73557 |
448221.674 |
2550539.07 |
860 |
1.4 |
46 |
0.03 |
0.36 |
0.35 |
73558 |
448231.651 |
2550523.84 |
859 |
1.5 |
160 |
0.96 |
1.21 |
5.50 |
73559 |
448233.056 |
2550522.34 |
859 |
1.5 |
44 |
0.07 |
0.12 |
0.24 |
73560 |
448162.564 |
2550771.74 |
871 |
0.8 |
1 |
0.01 |
0.00 |
0.01 |
73562 |
448173.578 |
2550599.72 |
862 |
2.5 |
1,624 |
14.13 |
0.06 |
0.24 |
Numbers may be rounded. Results are uncut and undiluted. |
QA/QC Procedures
The Company has implemented QA/QC procedures, including inserting blank, duplicate, and standard samples in all sample lots sent to
Qualified Person
The Qualified Person under National Instrument 43-101 Standards of Disclosure for Mineral Projects for this news release is
About
Eric Zaunscherb, Chair & CEO
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