Blackrock Silver Drills 5,080 g/t AGEQ over 0.9m Within 4.1m of 2,027 g/t AGEQ; Cuts Multiple One Kilogram per Tonne Intercepts at Tonopah West
Blackrock Silver Drills 5,080 g/t AGEQ over
0.9m Within 4.1m of 2,027 g/t AGEQ; Cuts
Multiple One Kilogram per Tonne Intercepts at
Tonopah West
Vancouver, British Columbia--(Newsfile Corp. - October 12, 2021) - Blackrock Silver Corp. (TSXV:
BRC) (the "
Company
") is pleased to announce additional high-grade silver and gold intercepts from its
core and reverse circulation (RC) drilling program on the 100% controlled Tonopah West project, located
in the Walker Lane trend of Western Nevada. These new results continue to demonstrate continuity of
high-grade mineralization over an 800 metre by 800 metre area that will form the basis of the upcoming
maiden resource on the DPB target.
In conjunction with drilling done to date, these results validate the
Company's understanding of the structural orientation and confirm continuity of mineralization of the vein
swarm at DPB.
Tonopah West is primely situated directly adjacent to the town of Tonopah, with Interstate
95 traversing the property, and the DPB target area is entirely on patented ground.
HIGHLIGHTS:
4.1 metres grading
2,027 g/t silver equivalent
(AgEq) (9.07 grams per tonne (g/t) gold (Au) and
1120 g/t silver (Ag) including a 0.9 metre zone grading
5,080 g/t AgEq
(20.85 g/t Au and 2,994 g/t
Ag) from the high-grade Bermuda vein were returned in Core hole
TXC21-026
(AgEq silver: gold
ratio 100:1);
Core hole
TXC21-010
cut multiple high grades zones on the Mule, Paymaster and Merten veins,
with the Mule vein returning
1,006 g/t AgEq
over 0.7 metres (5.61 g/t Au and 445 g/t Ag);
TXC21-027
intersected multiple zones in the Merten vein including 1.5 metres grading 6.5 g/t Au
and 592 g/t Ag or
1,242 g/t AgEq
, including 0.7 metres returning 12.1 g/t Au and 1,095 g/t Ag, or
2,305 g/t AgEq
;
The Company is working towards delivery of a maiden resource estimate during Q1, 2022;
The resource definition program is winding down and nearing completion with one core rig having
already been decommissioned.
Two core rigs and one RC drill rig remain in operation at site; and
Fifteen infill core holes have assays pending from the DPB target area and nine RC drillholes are
pending from the step-out program. Two core holes are currently in process and eight remain to be
completed to finish the resource drill campaign at DPB.
"As our resource definition program winds down, infill assays continue to deliver world-class results, with
the Bermuda vein returning our best intercept on a grade by thickness basis at the project this year in
drillhole TXC21-026, which also included our highest-grade silver intercept at the project to date," stated
Andrew Pollard, Blackrock Silver President & CEO.
"Since commencing drilling in June of last year, we
have completed nearly 100,000 metres of drilling across the entire project and look forward to delivery of
a maiden resource estimate in Q1, 2022, that will cover the DPB vein swarm over an 800 by 800 metre
area."
Mr. Pollard continued, "Our understanding of this vein corridor shows that the best mineralization lies
between two andesite units with the high-grade gold and silver hosted in veins cutting the West End
Rhyolite and a flow-banded rhyolite of the Tonopah Formation.
In essence, what we're seeing is that the
geology resembles a doubled-stuff Oreo cookie with the vein swarm occupying the rich filling and the two
andesites providing the hard crust. We know to drill through upper andesite and terminate the holes in
the lower andesite, with the high-grade silver and gold veins located in the centre. All known veins in this
area remain open. With our model predictive at this point, drills still turning, and assays for 24 completed
drillholes pending at the lab, which include a 500 metre step-out on our Merten vein, we have a lot to look
forward to while awaiting our maiden resource estimate."
Table 1: Summary of significant Au and Ag assay results using a 200 g/t AgEq cut-off grade.
(Intercepts greater than 2,000 gram-metre AgEq shown in bold text)
HOLEID
Area
From (m)
To (m)
Length (m)
Au_g/t
Ag_g/t
AgEq_g/t
TW21-085
Victor
594.4
599.0
4.6
3.113
275.6
586.9
TXC21-009
DPB
442.6
443.2
0.6
1.180
163.0
281.0
TXC21-010
DPB
458.6
459.3
0.7
5.610
445.0
1,006.0
TXC21-010
DPB
472.9
475.3
2.4
4.040
301.2
705.1
TXC21-010
DPB
527.6
528.2
0.6
27.500
1537.0
4287.0
TXC21-011
DPB
NSV
TXC21-014
DPB
NSV
TXC21-018
DPB
NSV
TXC21-019
DPB
NSV
TXC21-025
DPB
330
330.5
0.5
1.220
152.0
274.0
TXC21-025
DPB
333.8
334.1
0.3
3.220
429.0
751.0
TXC21-026
DPB
301.1
302.7
1.6
2.500
210.0
460.0
TXC21-026
DPB
310
310.3
0.3
1.010
119.0
220.0
TXC21-026
DPB
359.1
363.2
4.1
9.070
1120.0
2027.0
Including
361.2
362.1
0.9
20.850
2994.5
5079.5
TXC21-027
DPB
373.7
375.5
1.8
1.168
173.2
290.0
TXC21-027
DPB
376.8
377.7
0.9
3.457
315.7
661.3
TXC21-027
DPB
378.2
379.7
1.5
6.500
592.1
1242.1
Including
379
379.7
0.7
12.100
1095.0
2305.0
TXC21-028
DPB
524.9
526.1
1.2
4.420
68.4
510.4
TW21-086
Step Out
NSV
TW21-087
Step Out
NSV
AgEq_g/t = Ag_g/t + Au_g/t*100;. True thickness unknown. NSV = No significant values (< 200 g/t AgEq)
DPB Target
Core drilling continues to show the DPB target to have thick, high-grade silver and gold intercepts.
The
area hosts six veins with a cumulative high-grade strike in excess of 4 kilometres over significant widths
and mineralized shoots measuring several hundred metres vertically.
The Bermuda vein continues to impress with high grade silver and gold values.
TXC21-026 returned 4.1
metres grading 9.07 g/t Au and 1,120 g/t Ag including a 0.9 metre intersection which contained 20.85 g/t
Au and 2,994 g/t Ag.
The Bermuda vein has returned the most impressive bonanza-grade gold and
silver intercept from the in the in-fill drill program to date.
Drillhole TXC21-010 cut the Mule vein with 0.7 metres grading 1,006 g/t AgEq (5.61 g/t Au and 445 g/t
Ag), the Paymaster vein, intersecting 2.4 metres grading 705 g/t AgEq (4.04 g/t Au and 301 g/t Ag), and
the Merten vein, which yielded 27.5 g/t Au and 1,537 Ag over 0.6 metres or 4,287 g/t AgEq.
Drillholes TXC21-009, -011, -014, -018 and -019 drilled the Denver, Paymaster and Mule veins.
The
drillholes intersected the structures with gold and silver; however, the values were below the 200 g/t
AgEq cut off.
Silver Equivalent values from these drillholes on the Denver vein ranged from 75 g/t AgEq
(0.389 g/t Au and 36.99 g/t Ag) to 126 g/t AgEq (0.62 g/t Au and 65.1 g/t Ag).
On the Paymaster and
Mule veins, assays from these drillholes reached a high of 55 g/t AgEq (4.67 g/t Ag and 0.504 g/t Au)
and 52 g/t AgEq 0.35 g/t Au and 17.1 g/t Ag) respectively. These lower grade areas are helping to
define the rake of the high-grade zones in these veins.
Assays are pending for 15 core holes and 9 RC drillholes at this time. The project has reduced to two
core drills and one RC drill operating 24 hours per day, 7 days per week.
The majority of the DPB in-fill
drill program is now complete. Eight core holes remain to be completed and all resource drilling should
be finished during October.
Assay results have slowed to a 10 to 12 week turnaround time from the date
submitted. The Company ships samples weekly from Tonopah to the assay lab in Sparks, Nevada.
More than 95,000 metres of drilling has been completed since June 15, 2020, and a total of
approximately 65,000 metres has been completed year-to-date in pre-collar, core and RC drilling.
The 2021 program is approximately 85% complete and is utilizing two diamond core drills and one
reverse circulation drill.
The core drills are focused on the DPB resource delineation while the RC drill
continues to drill pre-collar holes, pull casing, and drill expansion-focused holes on the margin of the
resource evaluation area.
The DPB resource definition program consists of ~40,000 metres of diamond core drilling from 20 drill
sites within this large multi-vein target.
This broad multi-vein, high-grade system sits within an area
measuring 800 by 800 metres.
Drilling to date has identified two new veins bringing the total to six veins
within the DPB, all of which remain open. The maiden resource estimate is on track for delivery by first
quarter of 2022.
Figure 1: DPB N-S Cross Section 478050E, looking West
To view an enhanced version of Figure 1, please visit:
https://orders.newsfilecorp.com/files/676/99252_dc1eeaf1f4729b68_002full.jpg
Step Out Drilling
Drillholes TW21-086 and -087 were step-out drillholes completed 250 metres west of the western most
fence of core holes in the DPB resource area.
The two RC drillholes encountered significant water and
were halted before reaching their target depths.
A review of the target will be completed and a surface
core hole will be considered.
Assays for nine additional step-out drillholes are pending. Of these expansion-focused drillholes pending
assay, five are targeting the up-dip extension of the Merten vein, with step-outs targeting up to 500
metres to the south. Three drillholes are targeting the western extension of the Paymaster and Denver
veins, with step-outs up to 150 metres beyond the resource envelope, and one drillhole is targeting a
100 metre step-out to the east of the Bermuda vein.
Victor
Results previously reported from Drillhole TW21-085 (
see news release September 21, 2021
) are being
restated, While the gold and silver values were reported correctly, the silver equivalent value was
miscalculated to be substantially lower than it was. The drillhole in fact intersected 4.1 metres grading
3.11 g/t Au and 275.6 g/t Ag, or 586.9 g/t AgEq.
Figure 2: Plan map of significant Intercepts
To view an enhanced version of Figure 2, please visit:
https://orders.newsfilecorp.com/files/676/99252_dc1eeaf1f4729b68_003full.jpg
Table 2: Drillhole location information for drillholes in this news release
Drillhole ID
Target
Type
NAD27 East
NAD27 North
Elevation
metres
Azimuth
Dip
Total Depth
metres
TW21-086
Step Out
RC
477310.0
4214285.0
1775.0
0
-90
562.4
TW21-087
Step Out
RC
477310.0
4214285.0
1775.0
180
-70
422.1
TXC21-009
DPB
Core
477819.0
4214219.0
1775.0
0
-90
674.1
TXC21-010
DPB
Core
477819.0
4214219.0
1775.0
180
-70
671.2
TXC21-011
DPB
Core
477819.0
4214219.0
1775.0
180
-50
689.5
TXC21-014
DPB
Core
478144.4
4214304.5
1776.3
180
-70
607.5
TXC21-018
DPB
Core
478030.0
4214345.0
1775.0
180
-50
715.4
TXC21-019
DPB
Core
477700.0
4214225.0
1775.0
0
-90
694.0
TXC21-025
DPB
Core
477960.0
4213735.0
1775.0
0
-90
630.3
TXC21-026
DPB
Core
477960.0
4213735.0
1775.0
180
-80
556.7
TXC21-027
DPB
Core
477960.0
4213735.0
1775.0
180
-60
645.6
TXC21-028
DPB
Core
477700.0
4214050.0
1775.0
0
-90
540.2
Webinar
Blackrock Silver would like to invite interested shareholders to join Andrew Pollard, President and CEO,
and Bill Howald, Executive Chairman, for an hour-long webinar hosted by Taylor Combaluzier of Red
Cloud Financial.
The webinar will take place
Wednesday, October 13
th
at 11:00 am PDT / 2:00 pm EDT.
Management will be available to answer questions following their presentation.
To Register:
https://www.redcloudfs.com/rcwebinar-brc-2/
Quality Assurance/ Quality Control
All sampling is conducted under the supervision of the Company's project geologists, and a strict chain
of custody from the project to the sample preparation facility is implemented and monitored. The core
and reverse circulation samples are hauled from the project site to a secure and fenced facility in
Tonopah, Nevada, where they are loaded on to American Assay Laboratory's (AAL) flat-bed truck and
delivered to AAL's facility in Sparks, Nevada.
A sample submittal sheet is delivered to AAL personnel
who organize and process the sample intervals pursuant to the Company's instructions.
The core, reverse circulation, and QA/QC samples are crushed and pulverized, then the pulverized
material is digested and analyzed for Au using fire assay fusion and an Induced Coupled Plasma (ICP)
finish on a 30-gram assay split. Silver is determined using five-acid digestion and ICP analysis.
Over
limits for gold and silver are determined using a gravimetric finish.
Data verification of the assay and
analytical results are completed to ensure accurate and verifiable results. Blackrock personnel insert a
blind prep blank, lab blank or a certified standard approximately every 15
th
to 20
th
sample.
Blackrock's exploration activities at the Tonopah West Project are being conducted and supervised by
Mr. William Howald, Executive Chairman of Blackrock Silver Corp. Mr. William Howald, AIPG Certified
Professional Geologist #11041, is a Qualified Person as defined under National Instrument 43-101. He
has reviewed and approved the contents of this news release.
About Blackrock Silver Corp.
Blackrock is a junior precious metals focused exploration company that is on a quest to make an
economic discovery. Anchored by a seasoned Board, the Company is focused on its Nevada portfolio of
properties consisting of low-sulphidation epithermal gold & silver projects located along the established
Northern Nevada Rift in north-central Nevada and the Walker Lane trend in western Nevada.
For further information, please contact:
Andrew Pollard, President & CEO
Blackrock Silver Corp.
Phone: 604 817-6044
Email:
Forward-Looking Statements
This news release contains "forward-looking statements" within the meaning of Canadian securities
legislation. Such forward-looking statements concern the Company's strategic plans, completion and
exercise of the Tonopah option agreement, timing and expectations for the Company's exploration
and drilling programs, estimates of mineralization from drilling, geological information projected from
sampling results and the potential quantities and grades of the target zones. Such forward-looking
statements or information are based on a number of assumptions, which may prove to be incorrect.
Assumptions have been made regarding, among other things: conditions in general economic and
financial markets; accuracy of assay results; geological interpretations from drilling results, timing and
amount of capital expenditures; performance of available laboratory and other related services; future
operating costs; and the historical basis for current estimates of potential quantities and grades of
target zones. The actual results could differ materially from those anticipated in these forward-looking
statements as a result of the risk factors including the timing and content of work programs; results of
exploration activities and development of mineral properties; the interpretation and uncertainties of
drilling results and other geological data; receipt, maintenance and security of permits and mineral
property titles; environmental and other regulatory risks; project costs overruns or unanticipated costs
and expenses; availability of funds; failure to delineate potential quantities and grades of the target
zones based on historical data, and general market and industry conditions. Forward-looking
statements are based on the expectations and opinions of the Company's management on the date
the statements are made. The assumptions used in the preparation of such statements, although
considered reasonable at the time of preparation, may prove to be imprecise and, as such, readers
are cautioned not to place undue reliance on these forward-looking statements, which speak only as of
the date the statements were made. The Company undertakes no obligation to update or revise any
forward-looking statements included in this news release if these beliefs, estimates and opinions or
other circumstances should change, except as otherwise required by applicable law.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this
release.
To view the source version of this press release, please visit
https://www.newsfilecorp.com/release/99252