Discovery Silver Corp. (TSX-V: DSV, OTCQX: DSVSF)
(“Discovery” or the “Company”) is pleased to announce results of
the final 26 drill holes from its Phase 2 drill program on its
flagship Cordero silver project (“Cordero” or “the Project”)
located in Chihuahua State, Mexico. These holes consisted of
upgrade and expansion drilling of the PEA pit and expansion
drilling of the 2021 resource pit. Drilling will be used to support
a Pre-Feasibility Study (“PFS”) planned for early 2023. The Company
is also pleased to provide an update on its ongoing exploration
program on its property wide targets.
Highlight intercepts from Phase 2 drilling
include:
- 58 m averaging 208 g/t AgEq1
(99 g/t Ag, 0.33 g/t Au, 1.6% Pb and 1.0% Zn) from 78 m and
48 m averaging 231 g/t AgEq1 (100 g/t Ag, 0.63 g/t
Au, 1.8% Pb and 0.8% Zn) from 148 m in hole C22-614. These
intercepts were from upgrade drilling within the PEA starter
pit.
- 125 m averaging 111 g/t AgEq1 (37 g/t Ag, 0.04
g/t Au, 0.4% Pb and 1.6% Zn) from 265 m in hole C22-644. This
intercept was directly below the 2021 resource pit in an area
previously modeled as waste.
- 42 m averaging 201 g/t AgEq1 (76 g/t Ag, 0.06
g/t Au, 1.0% Pb and 2.4% Zn) from 453 m in hole C22-634. This
interval is located approximately 20 m below the resource pit.
- 86 m averaging 120 g/t AgEq1 (32 g/t Ag, 0.02
g/t Au, 0.1% Pb and 2.2% Zn) from 716 m in hole C22-636,
highlighting the mineralization potential at depth.
Tony Makuch, Interim CEO, states: “The
completion of our Phase 2 drill program, consisting of close to
80,000 m in over 250 drill holes, represents another major
milestone in the advancement of our Cordero project. This program
consistently intercepted mineralization beneath and to the
northeast of the open pit outlined in last year’s Preliminary
Economic Assessment highlighting the potential to expand the size
of the open pit in our upcoming PFS.
“Our PFS is now expected to be completed in
early 2023, a slight delay from our original target of mid to late
4Q 2022. The additional time will allow us to further optimise the
study to incorporate recent positive metallurgical developments
including the streamlining of the process circuit via co-processing
of oxides and sulphides and cost efficiencies through lower reagent
consumption and a coarse grind size.”
DRILL RESULTS:
This final set of Phase 2 drill holes was
focused on two main areas: 1) upgrade and expansion drilling of the
PEA open pit; and 2) expansion drilling of the resource at depth in
the northeast of the deposit. Results will be incorporated in a
resource update and PFS scheduled for completion in the first
quarter of 2023.
Plan maps summarizing the drilling completed
since the 2021 PEA can be found at the following link: PEA vs PFS
drill hole plan maps
Detailed drill highlights from the holes in this
release are provided in the tables below. Supporting maps and
sections, drill hole locations and full assay results can be found
at the following link: Plan map, sections & assays
A PDF of this release with supporting maps and sections included
as appendices can be found at the following link: Press release
with plan map & sections
PEA Pit Upgrade & Expansion
Drilling
Resource upgrade drilling in the PEA starter pit
(Pozo de Plata zone) continue to confirm the excellent continuity
of near-surface high-grade mineralization. Highlight intercepts
include 58.3 m of 208 g/t AgEq1 from 78.1 m, 48.3m of 231 g/t AgEq1
from 147.6 m (both intercepts from C22-614) and 50.0 m of 109 g/t
AgEq1 from 140.0 m (C22-613).
Drilling beneath the PEA pit in the northeast of
the deposit returned a number of excellent intercepts highlighting
the potential to expand the open pit for the upcoming PFS. Examples
include 61.1m of 123 g/t AgEq1 approximately 50 m below the PEA pit
in hole C22-637, 65.3 m of 121 g/t AgEq1 approximately 100 m below
the PEA pit in hole C22-615 and 46.7 m of 108 g/t AgEq1
approximately 100 m below the PEA pit in hole C22-645.
Detailed drill highlights from the open pit
upgrade and expansion drilling are provided in the table below:
Hole ID |
From (m) |
To (m) |
Width(m) |
Ag (g/t) |
Au (g/t) |
Pb (%) |
Zn (%) |
AgEq1(g/t) |
C22-613 |
140.0 |
190.0 |
50.0 |
58 |
0.21 |
0.7 |
0.4 |
109 |
|
|
|
|
|
|
|
|
|
C22-614 |
78.1 |
136.4 |
58.3 |
99 |
0.33 |
1.6 |
1.0 |
208 |
and |
147.6 |
195.9 |
48.3 |
100 |
0.63 |
1.8 |
0.8 |
231 |
|
|
|
|
|
|
|
|
|
C22-615 |
322.7 |
388.0 |
65.3 |
53 |
0.07 |
0.7 |
1.1 |
121 |
|
|
|
|
|
|
|
|
|
C22-618 |
106.1 |
165.3 |
59.2 |
42 |
0.03 |
0.9 |
1.0 |
110 |
and |
274.2 |
347.4 |
73.2 |
47 |
0.07 |
0.3 |
0.2 |
68 |
|
|
|
|
|
|
|
|
|
C22-634 |
452.9 |
495.1 |
42.2 |
76 |
0.06 |
1.0 |
2.4 |
201 |
|
|
|
|
|
|
|
|
|
C22-637 |
18.3 |
33.7 |
15.4 |
50 |
0.07 |
1.0 |
1.8 |
153 |
and |
128.9 |
189.9 |
61.1 |
37 |
0.05 |
0.9 |
1.5 |
123 |
|
|
|
|
|
|
|
|
|
C22-638 |
89.2 |
168.9 |
79.7 |
37 |
0.03 |
0.7 |
1.0 |
97 |
and |
179.9 |
232.2 |
52.3 |
21 |
0.02 |
0.5 |
0.7 |
63 |
|
|
|
|
|
|
|
|
|
C22-641 |
259.9 |
300.0 |
40.2 |
75 |
0.14 |
1.2 |
1.5 |
178 |
|
|
|
|
|
|
|
|
|
C22-643 |
222.2 |
243.7 |
21.5 |
81 |
0.09 |
1.2 |
1.1 |
164 |
including |
510.3 |
536.6 |
26.3 |
26 |
0.05 |
0.3 |
2.9 |
147 |
|
|
|
|
|
|
|
|
|
C22-644 |
264.8 |
389.5 |
124.7 |
37 |
0.04 |
0.4 |
1.6 |
111 |
|
|
|
|
|
|
|
|
|
C22-645 |
115.5 |
157.2 |
41.8 |
47 |
0.04 |
0.9 |
1.0 |
113 |
and |
234.6 |
270.7 |
36.1 |
47 |
0.05 |
0.8 |
0.4 |
88 |
and |
354.6 |
401.3 |
46.7 |
52 |
0.04 |
0.7 |
0.8 |
108 |
1See supporting technical disclosure underneath
the second table below.
Resource Expansion Drilling
Drilling continues to be successful in
demonstrating the continuity of mineralization beneath the resource
pit constraint highlighting the potential to expand the resource at
depth in the northeast of the deposit. In the South Corridor,
C22-644 intercepted a broad zone of higher-grade mineralization
starting at the edge of the resource pit that returned 124.7 m of
111 g/t AgEq1. This area of the deposit was previously modeled as
waste. In the North Corridor, C22-634 intercepted 42.2 m of 201 g/t
AgEq1 approximately 20 m below the resource pit constraint.
Drilling also continues to intercept broad zones
of mineralization at significant depths that correlate with the
deep feeder structures of the mineralized system at Cordero.
Examples from the drill holes in this press release include
C22-637, which returned 86.4m of 120 g/t AgEq1 from 716.4 m and
C22-625, which returned 40.6m of 97 g/t AgEq1 from 721.1 m.
Detailed drill highlights from the resource
expansion drilling are provided in the table below:
Hole ID |
From (m) |
To (m) |
Width(m) |
Ag (g/t) |
Au (g/t) |
Pb (%) |
Zn (%) |
AgEq1(g/t) |
C22-621 |
326.7 |
384.8 |
58.2 |
21 |
0.05 |
0.2 |
1.0 |
70 |
and |
723.8 |
776.0 |
52.2 |
15 |
0.02 |
0.1 |
1.4 |
71 |
|
|
|
|
|
|
|
|
|
C22-625 |
61.7 |
79.0 |
17.3 |
25 |
0.12 |
0.3 |
3.1 |
161 |
and |
325.9 |
355.9 |
30.0 |
24 |
0.02 |
0.2 |
1.9 |
102 |
and |
721.1 |
761.7 |
40.6 |
35 |
0.07 |
0.0 |
1.5 |
97 |
|
|
|
|
|
|
|
|
|
C22-629 |
224.5 |
272.0 |
47.6 |
30 |
0.08 |
0.3 |
0.8 |
74 |
and |
304.1 |
327.8 |
23.7 |
29 |
0.08 |
0.4 |
0.7 |
72 |
and |
634.1 |
662.3 |
28.3 |
17 |
0.02 |
0.1 |
1.7 |
86 |
|
|
|
|
|
|
|
|
|
C22-634 |
452.9 |
495.1 |
42.2 |
76 |
0.06 |
1.0 |
2.4 |
201 |
|
|
|
|
|
|
|
|
|
C22-637 |
0.0 |
42.9 |
42.9 |
34 |
0.03 |
0.6 |
0.7 |
81 |
and |
716.4 |
802.8 |
86.4 |
32 |
0.02 |
0.1 |
2.2 |
120 |
|
|
|
|
|
|
|
|
|
C22-644 |
264.8 |
389.5 |
124.7 |
37 |
0.04 |
0.4 |
1.6 |
111 |
1All results in this news release are rounded.
Assays are uncut and undiluted. Widths are drilled widths, not true
widths, as a full interpretation of the actual orientation of
mineralization is not complete. As a guideline, intervals with
disseminated mineralization were chosen based on a 25 g/t AgEq
cutoff with no more than 10 m of dilution. AgEq calculations are
used as the basis for total metal content calculations given Ag is
the dominant metal constituent as a percentage of AgEq value in
approximately 70% of the Company’s mineralized intercepts. AgEq
calculations for reported drill results are based on USD $22.00/oz
Ag, $1,600/oz Au, $1.00/lb Pb, $1.20/lb Zn. The calculations assume
100% metallurgical recovery and are indicative of gross in-situ
metal value at the indicated metal prices. Refer to Technical Notes
below for metallurgical recoveries assumed in the 2021 PEA
completed on Cordero.
PROPERTY WIDE EXPLORATION:
Surface exploration work has been ongoing at
Cordero since March 2021. Work completed to date includes
geological mapping, surface rock and soil sampling, geophysics and
diamond drilling. In total results from 2,190 surface rock samples
and 3,639 soil samples have been received. An additional 1,508 soil
samples are pending results. The surface work is based on
historical data including soil geochemistry, structural and
alteration interpretations of satellite imagery, induced
polarization (“IP”) geophysics surveys and an airborne magnetometry
(“Mag”) and electromagnetic (“EM”) geophysical survey completed by
the Company in 2019.
The five main surface exploration target areas
based on this work are Sanson, Porfido Norte, Dos Mil Diez, Molino
de Viento, and La Perla. Discovery so far has completed preliminary
reconnaissance-style drilling at Sanson and Porfido Norte
consisting of 10 drill holes totaling 4,500 m. A map showing the
location of these five target areas can be found at the following
link: Property wide targets
At Sanson, located two kilometres northeast of
the main resource area, seven drill holes have been completed.
Drill targeting was based on surface alteration, a magnetic anomaly
indicating a proximal intrusive body, and surface mapping of
intrusive rocks and breccias. Six of the holes intersected very
strongly silicified and sericite-altered rhyodacite, breccias and
sedimentary rocks with traces of quartz-molybdenite veining that
returned anomalous levels of molybdenum (100 – 400 ppm) and silver
(260 – 270 ppm).
At Porfido Norte, three drill holes were
completed following surface mapping and rock sampling. Historic IP
geophysics indicated the presence of an intrusive body at depth and
mapping identified several intrusive sills at surface. Drilling
intersected sparse, very narrow (<10cm) mineralized sulphide
veins within the intrusive rocks that returned anomalous Ag, Au,
and Zn values. Further work at Sanson and Porfido Norte will be
evaluated following the completion of the current exploration
program across all five property-wide targets.
At Dos Mil Diez, at the southwest edge of the
Cordero deposit, surface mapping and sampling has identified a
number of rhyodacite intrusive sills and dikes hosted by calcareous
sedimentary rocks similar to those present at Cordero. Surface
sampling has returned anomalous values of Ag, Pb, and Zn within
narrow sulphide veins, including a 10 cm galena vein that returned
2,530 g/t Ag. The typical strike extent of the veins is
approximately 10 to 20 m. Drill hole planning is in its final
stages for this area.
At Molino de Viento, located ten km southwest of
the main Cordero resource, surface mapping and sampling returned
elevated Zn values that may coincide with an intrusive body at
depth based on the 2019 Mag and EM survey. Drill targets are
currently being finalised for this area and will incorporate a
recently completed 15,200 m 2D IP survey that supplements the
historic geophysical data.
The La Perla target is located approximately 10
km south of the Cordero deposit. Historic work includes an IP
survey (16,500m) and a four-hole, 1,380 m drill program. The
Company has also completed surface mapping and sampling across the
target area. The IP geophysical survey identified weak
chargeability anomalies at depth and historic drilling intersected
sulphide veins with anomalous Ag, Pb, and Zn values as well as
wider intervals of mineralized rhyolite in hole C12-247 that
returned 12.0 m averaging 28 g/t Ag from surface and 174.2 m
averaging 4 g/t Ag and 0.13% Zn from 38.0 m. Additional IP
geophysics survey lines are currently being completed to assist
with finalizing drill targets.
DRILL PROGRAM UPDATE:
The Company has now completed its Phase 2 drill
program. This drill program along with all previous drilling is
summarized in the table below. Feasibility study drilling has
already commenced and will consist of engineering drilling,
resource upgrade drilling and drilling targeting the expansion of
the PFS open pit. The total metres to be drilled in the feasibility
study drill program will be finalised following the completion of
the PFS.
Drill Program |
Period |
Drill Metres |
Drill Holes |
|
Historic |
2009 – 2017 |
123,000 m |
253 |
|
Discovery Silver – Phase 1 |
2019 – 2021 |
92,000 m |
225 |
|
Discovery Silver – Phase 2 |
2021 – 2022 |
78,000 m |
257 |
|
TOTAL |
|
293,000 m |
735 |
|
About Discovery
Discovery’s flagship project is its 100%-owned
Cordero project, one of the world’s largest silver deposits. The
PEA completed in November 2021 demonstrates that Cordero has the
potential to be developed into a highly capital efficient mine that
offers the combination of margin, size and scaleability. Cordero is
located close to infrastructure in a prolific mining belt in
Chihuahua State, Mexico. Continued exploration and project
development at Cordero is supported by a strong balance sheet with
cash of approximately C$60 million.
On Behalf of the Board of Directors,Tony
Makuch, P.EngInterim CEO
For further information contact:
Forbes Gemmell, CFAVP Corporate
DevelopmentPhone: 416-613-9410Email:
forbes.gemmell@discoverysilver.comWebsite:
www.discoverysilver.com
Sample analysis and QA/QC
ProgramThe true width of the veins is estimated to be
approximately 70% of the drilled width. Assays are uncut except
where indicated. All core assays are from HQ drill core unless
stated otherwise. Drill core is logged and sampled in a secure core
storage facility located at the project site 40km north of the city
of Parral. Core samples from the program are cut in half, using a
diamond cutting saw, and are sent to ALS Geochemistry-Mexico for
preparation in Chihuahua City, Mexico, and subsequently pulps are
sent to ALS Vancouver, Canada, which is an accredited mineral
analysis laboratory, for analysis. All samples are prepared using a
method whereby the entire sample is crushed to 70% passing -2mm, a
split of 250g is taken and pulverized to better than 85% passing 75
microns. Samples are analyzed for gold using standard Fire
Assay-AAS techniques (Au-AA24) from a 50g pulp. Over limits are
analyzed by fire assay and gravimetric finish. Samples are also
analyzed using thirty three-element inductively coupled plasma
method (“ME-ICP61”). Over limit sample values are re-assayed for:
(1) values of zinc > 1%; (2) values of lead > 1%; and (3)
values of silver > 100 g/t. Samples are re-assayed using the
ME-OG62 (high-grade material ICP-AES) analytical package. For
values of silver greater than 1,500 g/t, samples are re-assayed
using the Ag-CON01 analytical method, a standard 30 g fire assay
with gravimetric finish. Certified standards and blanks are
routinely inserted into all sample shipments to ensure integrity of
the assay process. Selected samples are chosen for duplicate assay
from the coarse reject and pulps of the original sample. No QAQC
issues were noted with the results reported herein.
Qualified
PersonGernot Wober, P.Geo, VP Exploration,
Discovery Silver 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.
TECHNICAL NOTES & FORWARD-LOOKING
STATEMENTS:
The most recent technical report for the Cordero
Project is the 2021 Preliminary Economic Assessment (PEA). The PEA
was completed by Ausenco Engineering Canada Inc. with support from
AGP Mining Consultants Inc. and Knight Piésold and Co. (USA). The
full technical report supporting the PEA is available on
Discovery’s website and on SEDAR under Discovery Silver Corp.
The PEA assumed average life-of-mine recovery
assumptions for sulphide material of 84% for Ag, 19% for Au, 86%
for Pb and 85% for Zn. The PEA assumed oxide recovery assumptions
of 56% for Ag and 63% for Au for crushed feed and 36% for Ag and
35% for Au for uncrushed ROM feed.
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.
This news release is not for distribution to United States
newswire services or for dissemination in the United States.
This news release does not constitute an offer
to sell or a solicitation of an offer to buy nor shall there be any
sale of any of the securities in any jurisdiction in which such
offer, solicitation or sale would be unlawful, including any of the
securities in the United States of America. The securities have not
been and will not be registered under the United States Securities
Act of 1933, as amended (the “1933 Act”) or any state securities
laws and may not be offered or sold within the United States or to,
or for account or benefit of, U.S. Persons (as defined in
Regulation S under the 1933 Act) unless registered under the 1933
Act and applicable state securities laws, or an exemption from such
registration requirements is available.
Cautionary Note Regarding Forward-Looking
Statements
This news release may include forward-looking
statements that are subject to inherent risks and uncertainties.
All statements within this news release, other than statements of
historical fact, are to be considered forward looking statements.
Forward-looking statements including, but not limited to
Discovery’s future plans and objectives regarding the Cordero
Project and the prospect of further discoveries there, which
constitute forward looking information that involve various risks
and uncertainties. Although Discovery believes the expectations
expressed in such forward-looking statements are based on
reasonable assumptions, such statements are not guarantees of
future performance and actual results or developments may differ
materially from those described in forward-looking statements.
Factors that could cause actual results to differ materially from
those described in forward-looking statements include fluctuations
in market prices, including metal prices, continued availability of
capital and financing, and general economic, market or business
conditions. There can be no assurances that such statements will
prove accurate and, therefore, readers are advised to rely on their
own evaluation of such uncertainties. Discovery does not assume any
obligation to update any forward-looking statements except as
required under applicable laws.
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