Blackrock Discovers Bonanza Grades in New Vein at Silver Cloud - 52.6 g/t Gold and 606 g/t Silver over 1.5 Metres in Northwest Canyon
Blackrock Discovers Bonanza Grades in New
Vein at Silver Cloud - 52.6 g/t Gold and 606 g/t
Silver over 1.5 Metres in Northwest Canyon
Vancouver, British Columbia--(Newsfile Corp. - December 7, 2022) - Blackrock Silver Corp. (TSXV:
BRC) (the "
Company
" or "
Blackrock
") is pleased to announce the results of its recently completed
diamond exploration drill program on its 100% controlled Silver Cloud project situated 20 kilometres
south of the Midas mine and 3 kilometres west of Hollister mine, along the prolific Northern Nevada Rift
in north-central Nevada.
The Company completed three diamond core holes, SBC22-019, -020, AND -021, totalling 1,447
metres (4,746 ft) in two target areas on the Silver Cloud project.
Two holes totalling 927 metres were
completed adjacent to the Silver Cloud mine and one hole, 520 metres, was drilled at Northwest Canyon.
Highlights:
Bonanza grades were returned from SBC22-020, which intersected 52.62 g/t gold (1.53 opt) and
606 g/t silver (17.68 opt) over 1.5 metres in the Northwest Canyon area, representing a new high-
grade vein discovery now known as Zeus;
SBC22-020 was directed at a conceptually projected structure based on results received from
Blackrock's SBC19-002 (8.32 g/t gold over 1.52m) and Placer Dome's SCP-15 (5.61 g/t gold over
12.2m). These assay intercepts represent a high-grade drill defined structure separated by 425
metres;
The bonanza grades are associated with a banded quartz vein which contains black sulphides,
and the 606 g/t silver is the highest-grade silver intercept on the Silver Cloud property to date;
SBC22- -021 drilled at Silver Cloud Mine returned significant thickness of low-grade gold returning
20.6 metres grading 0.458 g/t gold; and
Coarse gold is known to occur on the property, and all significant gold intervals will be re-submitted
to the assay laboratory for metallic-screen analysis.
Andrew Pollard, Blackrock President and CEO, commented, "Silver Cloud was the project Blackrock
was built around in its current form beginning three years ago, and though our Tonopah West property
has now become a globally significant silver discovery, it's Silver Cloud that has returned our highest-
grade gold intercept as a Company to date, in the process, establishing a new bona fide high-grade
discovery on one of the most prolific gold belts in Nevada.
Our understanding of the rich ore deposits
along the Northern Nevada Rift were key to making the Zeus discovery.
The Midas mine, located 20
kilometres to the north, which started with a similar intercept, ultimately lead to the discovery of the
Colorado Grande and Gold Crown veins which were 0.3 to 6 metres wide, yet managed to form the
basis for one of Nevada's most iconic historic gold mines.
Making a blind discovery of this magnitude on
such a limited round of drilling is a testament to the caliber of our geologic team. The discovery of Zeus
may have just parted the Silver Clouds once and for all, with indications that the system has plenty of
room to grow from here."
Table 1: Silver Cloud significant diamond drill hole assays above 0.3 g/t gold
Hole ID
Area
From (m)
To (m)
Length (m)
Au g/t
Ag g/t
AgEq g/t
SBC22-019
Silver Cloud Mine
218.85
221.90
3.05
0.442
0.385
44.6
SBC22-019
Silver Cloud Mine
224.94
227.99
3.05
0.377
0.360
38.0
SBC22-019
Silver Cloud Mine
266.24
267.31
1.07
0.578
0.49
58.3
SBC22-020
Northwest Canyon
307.54
309.07
1.52
52.617
606.00
5959.3
SBC22-021
Silver Cloud Mine
178.61
187.91
9.30
0.397
0.131
39.8
SBC22-021
Silver Cloud Mine
197.97
198.73
0.76
0.465
0.03
46.5
SBC22-021
Silver Cloud Mine
203.30
204.83
1.52
0.361
0.03
36.1
SBC22-021
Silver Cloud Mine
215.49
217.02
1.52
0.486
0.18
48.8
SBC22-021
Silver Cloud Mine
256.64
257.86
1.22
0.411
0.93
42.0
SBC22-021
Silver Cloud Mine
287.73
290.78
3.05
0.494
0.24
49.6
SBC22-021
Silver Cloud Mine
296.88
299.31
2.44
0.389
0.030
39.0
SBC22-021
Silver Cloud Mine
359.82
380.39
20.57
0.458
3.491
49.3
SBC22-021
Silver Cloud Mine
391.36
391.67
0.31
1.590
10.43
169.4
AgEq_g/t = Ag_g/t + Au_g/t*100; True thickness unknown; NSV = No significant values
Hole ID
Area
From (m)
To (m)
Length (m)
Au g/t
Ag g/t
AgEq g/t
At Northwest Canyon, SBC22-020 cut bonanza grades, 52.62 g/t gold (1.53 opt) and 606 g/t silver
(17.68 opt) over 1.5 metres, representing a new high-grade vein discovery.
The high-grade interval is
associated with a banded and stockwork quartz veins containing black sulphides from 307.5 to 309.1
metres (1,009 to 1,014 ft) down the drillhole.
The 606 g/t silver is the highest-grade silver drill intercept
on the Silver Cloud property to date.
SBC22-020 was completed to 464 metres (1,523 ft).
The core hole targeted the projection of the NNW
structure encountered in the Company's 2019 drilling (SBC19-002: 8.32 g/t gold over 1.52m), and
Placer Dome's 2002 drillhole (SCP-15: 5.61 g/t gold over 12.2m).
SBC22-020's collar location is a 366
metre step out, drillhole collar to drillhole collar, to the SSE along the interpreted structure; however, and
the assay intercepts are separated by 425 metres.
At the Silver Cloud mine, SBC22-019 and SBC22-021 targeted an interpreted structural zone and
tested 170 metres of strike.
SBC22-019 encountered a zone of pyrite-cemented breccia from 357 to
360 metres down the hole.
The zone was mineralized but below the 0.3 g/t gold cut off grade.
An
additional three zones of gold mineralization were encountered between 219 and 267 metres down the
hole.
These zones range from one to three metres in thickness and have gold values from 0.377 g/t to
0.578 g/t gold.
The intervals have been submitted for metallic-screen analysis.
SBC22-021 was drilled 170 metres to the SSE of SBC22-019, and it encountered oxidized breccia and
fault gouge with intermittent quartz veining from 165 to 174 metres (540 to 572 ft) down the hole.
The
alteration suggests the drillhole penetrated the intended NNW structure which is mineralized over a thick
zone and returned assays yielding 20.6 metres returning 0.438 g/t gold.
The intervals have also been
submitted for metallic-screen analysis.
Additional work is being planned for Northwest Canyon to follow up on the new discovery.
This area has
limited drilling and shows potential for a large vein-hosted deposit similar to Midas.
At the Silver Cloud
mine, more exploration is warranted to understand the thick zones of alteration with lower-grade gold
mineralization.
Figure 1: 2022 drillhole location map
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/676/147013_23fa0a6fa4020949_002full.jpg
Figure 2: Cross Section between SCP-15, SBC19-002 and SBC22-020 looking northeast
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/676/147013_23fa0a6fa4020949_003full.jpg
Table 2: Drillhole location information
Hole ID
UTMNAD27 E
UTMNAD27 N
Elevation (m)
Total Depth (m)
Azimuth
Inclination
SBC22-019
531554
4544421
1615.1
462.5
273
78
SBC22-020
530149
4544148
1631.0
520.0
272
74
SBC22-021
531648
4544259
1556.3
464.2
268
73
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
samples are hauled from the project site to a secure and fenced facility in Battle Mountain, 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 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
certified reference material approximately every 15
th
to 20
th
sample.
In addition, a random selection of
pulps are sent to ALS Minerals in Reno, Nevada, for check assays.
Blackrock's exploration activities at the Silver Cloud, Tonopah North and Tonopah West projects are
conducted and supervised by Mr. William Howald, Executive Chairman of Blackrock. 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, 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
risk factors, 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.
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