GR Silver Mining Reports High-grade Underground Sampling Results at Plomosas, Including Assays up to 6,128 gpt Ag over 0.2 meters.
GR Silver Mining Reports High-grade
Underground Sampling Results at Plomosas,
Including Assays up to 6,128 gpt Ag over 0.2
meters.
VANCOUVER
,
April 2, 2020
/CNW/ -
GR Silver Mining Ltd. (TSXV: GRSL,
FRANKFURT
: GPE,
OTCQB: GLYXF) ("GR Silver" or the "Company")
– is pleased to announce assay results for
initial underground channel sampling from the
San Juan
underground workings at the recently
acquired Plomosas Silver Project ("Plomosas"), in
Sinaloa, Mexico
.
San Juan
is one of six priority
areas with underground development not yet exploited by previous owners (
view photo here
). The
underground workings at
San Juan
have recently been rehabilitated by GR Silver to allow for this
initial sampling program. The company is currently validating all recent and historical information,
including the review of over 500 drill holes in the six priority areas and sampling mineralized zones,
aiming to complete multiple resource estimations in 2020.
The most significant sample results for this release returned
high-grade intervals of
0.4 m
at 3,003
g/t Ag and
0.2 m
at 6,128 g/t Ag
both within a composite sample of
2.1 m
at 532 g/t Ag,
defining
in situ high grade silver veins/breccia along with high-grade gold, zinc and lead mineralization (Table
1). Other important intervals include
0.5 m
at 1,142 g/t Ag
within a channel composite of
9.3 m
at
346 g/t Ag,
hosted by a hydrothermal breccia, typical of low sulphidation epithermal mineralized
systems. These results provide support for the potential definition of wide, mineable, underground
zones at
San Juan
.
The following Table 1 and Figure 1 summarize significant (>300 g/t Ag) composited and un-
composited assay results (uncut, undiluted) from continuous channel sampling on the initial
140 m
of
the San Juan Vein (upper level).
Table 1- Results Channel Sampling San Juan Vein
San Juan Underground Development – Upper Level – Channel Sampling > 300 g/t Ag
Channel
Sequence
Type
Width
(m)
***
Au g/t
Ag g/t
Pb %
Zn %
I
COMPOSITE
2.1
0.30
552
0.73
1.04
Incl.
0.4
1.20
3,003
2.91
3.08
Incl.
0.2
2.45
6,128
5.83
6.02
II
COMPOSITE
5.0
0.28
816
0.88
0.46
Incl.
0.4
0.18
1,804
1.47
0.25
Incl.
0.1
0.331
3051
4.470
0.340
Incl.
0.5
0.76
2343
1.420
0.522
III
COMPOSITE
2.0
0.51
1,145
0.92
0.37
Incl.
1.3
0.46
1,324
0.84
0.32
IV
COMPOSITE
2.8
0.42
482
0.45
0.37
Incl.
1.2
0.81
1,024
0.55
0.24
V
COMPOSITE
9.3
0.13
346
0.69
1.03
Incl.
4.8
0.17
416
0.86
0.53
Incl.
0.5
0.31
1,142
0.80
0.55
Incl.
0.2
0.25
609
0.89
0.44
VI
COMPOSITE
1.1
0.54
542
0.53
1.14
Incl.
0.2
0.38
1,541
0.61
2.20
VII
COMPOSITE A
1.2
0.19
535
1.05
1.05
Incl.
0.9
0.07
713
0.53
1.52
COMPOSITE B
1.1
0.54
1,810
0.49
0.28
Incl.
0.4
1.09
4,698
0.88
0.34
VIII
COMPOSITE (dil)
1.85
0.01
57.68
0.01
0.15
IX
COMPOSITE (dil)
1.7
0.40
205.82
0.12
0.35
X
COMPOSITE
1.3
0.54
341
0.09
0.19
XI
COMPOSITE
1.7
0.99
460
0.13
0.36
XII
COMPOSITE
2.0
0.85
511
0.08
0.38
XIII
COMPOSITE
3.0
0.11
485
0.16
0.32
Incl.
1.0
0.228
1410
0.28
0.40
Incl.
1.3
0.21
263
0.19
0.30
*** The underground channel sample width of the mineralization might not be indicative of the true width of mineralization. Ongoing sampling and review of recent+ historical drilling
results may provide support for future definition of the true width. (dil): internal dilution
Figure 1- Location – Underground Workings – Channel Sampling San Juan Vein
Figure 1- Location – Underground Workings – Channel Sampling San Juan Vein (CNW Group/GR
Silver Mining Ltd.)
GR Silver Mining President and CEO,
Marcio Fonseca
, commented
,
"It is very encouraging to
receive the first high grade silver and gold results from our ongoing underground channel
sampling at the
San Juan
area. This area is one of our six priority areas for resource estimation at
the Plomosas Project in 2020. We continue to rehabilitate the underground workings at
San Juan
to
facilitate further sampling along the strike of the mineralization and in the lower levels. This will
allow the Company to integrate new channel sample data with the recent and historical drilling data
(to be released) and thus gain further understanding of not only the high-grade silver results but
also the relationship with attractive gold results. Our initial studies indicate the existence of multiple
high-grade silver and gold vein/breccia systems at the Plomosas Project".
The results presented in this news release are part of a systematic sampling program implemented
at regular intervals along the strike of the silver-gold mineralization in the underground workings at
San Juan
area. The Company is currently upgrading the extensive underground areas to working
conditions, to allow further sampling. The true thickness and extent of the mineralization hosted by
veins and breccias will be fully determined once all recent and historical drill results in each area are
reviewed and released.
One of the most remarkable discoveries in the sampling program at
San Juan
has been the
presence of two mineralized systems. The first system is oriented NW-SE along major regional
structures hosting polymetallic (Zn-Pb-Ag with minor Au) mineralization. The second system is hosts
NE-SW oriented veins-stockwork with high grade Ag-Au. These two systems represent upside
potential for delineation of new resource areas.
Qualified Person
The scientific and technical data contained in this news release related to the Plomosas Project was
reviewed and/or prepared under the supervision of
Marcio Fonseca
, P.Geo.
Quality Assurance Program and Quality Control Procedures ("QA/QC")
GR Silver Mining has implemented QA/QC procedures which include insertion of blank and standard
samples in all sample lots sent to SGS de México, S.A. de C.V laboratory facilities in
Durango,
Mexico
, for sample preparation and assaying. For every sample with results above Ag >100 ppm
(over limits), these samples are submitted directly by SGS de
Mexico
to SGS Canada Inc in
Burnaby, BC
. The analytical methods are 4-acid Digest and Inductively Coupled Plasma Optical
Emission Spectrometry with Lead Fusion Fire Assay with gravimetric finish for silver above over
limits. For gold assays the analytical methods are Lead Fusion and Atomic Absorption Spectrometry
Lead Fusion Fire Assay and gravimetric finish for gold above over limits.
About GR Silver Mining Ltd
.
GR Silver Mining Ltd. (GRSL.V) is a
Mexico
-focused company engaged in cost-effective silver-gold
resource expansion on its key assets which lie on the eastern edge of the Rosario Mining District.
PLOMOSAS SILVER PROJECT
GR Silver Mining owns 100% of the Plomosas Silver Project located near the historic mining village
of
La Rastra
, within the Rosario Mining District. The silver and gold mineralization on this Project
display the alteration, textures, mineralogy and deposit geometry characteristics of a low
sulphidation epithermal silver-gold-base metal vein/breccia mineralized system. Previous exploration
was focused on Pb-Zn-Ag-Au polymetallic shallow mineralization, hosted in NW-SE structures in the
vicinity of the Plomosas mine. The E-W portion of the mineralization remains under-explored.
Plomosas and San Marcial collectively represent a geological setting resembling the multi-million-
ounce San Dimas Mining District which has historically produced more than 620Moz silver and
11Moz gold over a period of more than 100 years.
SAN MARCIAL PROJECT
San Marcial is a near-surface, high-grade silver, lead, and zinc open pit amenable project. GR Silver
Mining is currently expanding its NI 43-101 resource estimate at the San Marcial Project, which
contains 36Moz AgEq (indicated) + 11Moz AgEq (Inferred), by defining new high-grade gold and
silver targets along the project's 6 km mineralized trend. GR Silver Mining is the first company to
undertake exploration work at San Marcial in over 10 years.
OTHER PROJECTS
GR Silver Mining's other projects are situated in areas attractive for future discoveries and
development in the same vicinity of Plomosas and San Marcial in the Rosario Mining District.
Mr.
Marcio Fonseca
P. Geo, President & CEO
GR Silver Mining Ltd.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in
the policies of the TSX Venture Exchange) accept responsibility for the adequacy or accuracy of
this press release.
Disclaimer for Forward-Looking Information
This press release contains forward-looking statements and information that are based on the
beliefs of management and reflect the Company's current expectations. When used in this press
release, the words "estimate", "project", "belief", "anticipate", "intend", "expect", "plan", "predict",
"may" or "should" and the negative of these words or such variations thereon or comparable
terminology are intended to identify forward-looking statements and information. Such statements
and information reflect the current view of the Company. Risks and uncertainties may cause actual
results to differ materially from those contemplated in those forward-looking statements and
information. By their nature, forward-looking statements involve known and unknown risks,
uncertainties and other factors which may cause our actual results, performance or
achievements,
or other future events, to be materially different from any future results, performance or
achievements expressed or implied by such forward-looking statements.
SOURCE
GR Silver Mining Ltd.
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For further information:
+1 (604) 202 3155, Email: [email protected]
CO: GR Silver Mining Ltd.
CNW 07:30e 02-APR-20