Gold Bull Resources Corp. (TSX-V: GBRC) (“
Gold
Bull” or the “
Company”) is pleased to
report definition of new high priority multimillion ounce gold
targets using an expanded exploration model and recently digitized
historic drill hole geochemical data within its 100% owned Sandman
Project (“Sandman” or the “Project”) located in Humboldt County,
Nevada, USA.
HIGHLIGHTS & UPDATE:
- Exploration Model
Expanded to target gold bearing hydrothermal fluid feeder
structures below known deposits at the Tertiary-Triassic
unconformity. Hydrothermal breccias formed at this contact at the
nearby Sleeper deposit hosting bonanza gold ore (Figure 1).
- John Wood, the
geologist who discovered the nearby Sleeper deposit in the 80’s,
has been engaged to advise, challenge and mentor Gold Bull’s
geology team.
- Multi-element geochemical
data has defined new (undrilled) target areas adjacent to
known gold deposits
- Historic drill hole geochemical
data have defined new broad haloes of pathfinder elements and gold
that are being used to define new regional exploration
targets.
- High priority drilling
scheduled to re-commence in Q4 2021
John Wood, discoverer of the
circa 5-million-ounce Sleeper gold deposit
commented: “The size of the Sandman surface gold
anomaly, at least, 15 km in length, and the apparent elevation
control of the gold deposits and adularia “cap” rocks are direct
indications that a very large gold-bearing hydrothermal system was
active at Sandman. At the Sleeper deposit and regionally at other
deposits, bonanza grade gold often occurs at the pre-Tertiary
contact where gold-bearing fluids depressurize quickly and deposit
high-grade gold. This horizon is not well tested at Sandman and
offers an opportunity to target bonanza grade structures,
essentially feeder zones to the known deposits. The target here is
for relatively small but very high-grade structures like the
Sleeper vein and at this stage, could reflect multi-million-ounce
potential”
CEO Cherie Leeden commented:
“To have globally renowned Advisors, locally available to
us here in Nevada, such as John Wood, combined with a Sandman
database worth circa $25 million dollars to replicate, is such a
gift to Gold Bull. This new target horizon at the geological
contact is super exciting. If there is another Sleeper deposit
laying just beneath the surface at Sandman, after this next round
of drilling, we should know about it.”
Background: Expanded Sandman exploration
model
Exploration at Sandman since 1987 has focused on
shallow gold mineralization. Only 9% of holes drilled to date had
end-of-hole depths greater than 200 m and only a minority of holes
have intersected the basement rocks underlying the Tertiary
sequence. The bulk of these holes testing basement were drilled in
two gold occurrences. Bonanza-grade gold deposits like Sleeper
(which produced 1.66 million ounces of gold and 2.3 million ounces
of silver from 1986 to 1996 at an average cash cost of $158/oz Au)
occur close to the contact between the relatively unconsolidated
Tertiary volcanic/volcaniclastic rocks and the underlying tight,
metamorphosed Triassic basement rocks of the Auld Lang Syne Group
(Figure 1) consisting of the Raspberry Formation phyllite and
O’Neill Formation quartzite. Due to the emphasis on shallow
mineralization in previous exploration programs, this contact is
largely un-tested at Sandman. The shallow mineralization in the
district hosted within adularia caps is recognized as being formed
by hydrothermal fluids migrating upward from the bonanza grade
deeper zone into the last available trap sites before flowing out
onto the land surface.
Figure 1 Expanded exploration
model for the Sandman project. Currently known deposits comprise
strata-bound and structurally controlled mineralization formed at
shallow depths near the paleo-water table. Bonanza grade gold
deposits are expected to have formed at greater depth, near the
contact between the Tertiary volcanic-volcaniclastic sequence and
the Triassic basement rocks not previously targeted.
The Tertiary-Triassic contact at Sleeper and
other epithermal gold deposits in Northern Nevada is a locus for
the formation of hydrothermal breccias, which are zones of
fractured rock that result when the pressure of hydrothermal fluids
exceeds the sum of the lithostatic load and the tensile strength of
the rocks. The sharp lithostatic pressure gradient around this
contact makes it a favored horizon for hydrothermal breccia
formation, which results in a rapid decrease in fluid pressure and
temperature, leading to exsolution of volatile components (CO2 and
H2S), which causes a decrease in pH and consequent precipitation of
precious metals. (Refer to USGS publication “Descriptive Models for
Epithermal Gold-Silver Deposits”, Scientific Investigations Report
2010–5070–Q)
Gold Bull is developing drill targets at Sandman
based on the projection of interpreted hydrothermal feeder
structures below known gold deposits to the Tertiary-Triassic
unconformity. This work incorporates historic drilling and
geophysical data such as the 3D IP/resistivity survey read at North
Hill in late 2020.
Historic multi-element drill-hole geochemical data
define new targets
Another direction for target generation at
Sandman centers on analysis of historic multi-element geochemical
data compiled from scanned paper records. Statistical analysis of
these data indicates a strong association of elements such as
arsenic and antimony with mineralizing systems at Sandman.
Gold mineralization at Silica Ridge and North
Hill is fundamentally controlled by a west-dipping normal fault
that is evident in geophysical data, as well as several smaller
antithetic structures. 3D contouring of recently digitized historic
multi-element drill-hole geochemical data define broad halos of
anomalous gold and potential pathfinder elements (principally
arsenic and antimony) along this prospective structural corridor
(Figure 2). The Midway target area extending west of the normal
fault has very sparse historic drilling. Dipole-dipole
IP/resistivity surveying completed in this area in early 2021
defined resistive anomalies consistent with adularia-quartz
alteration, which hosts most of the known gold mineralization in
the project area. Drilling west of Silica Ridge intersected
anomalous gold and arsenic deposited by the hydrothermal system
that likely extends several kilometers northward into Midway
towards the North Hill deposit.
Figure 2 3D perspective view
(looking downward toward 349°) of the Silica Ridge – North Hill
area, where broad halos of anomalous gold (>50 ppb Au contour
shown) and arsenic (>25 ppm As) are defined by drilling adjacent
to the main normal fault (blue surface) influencing
mineralization.
Drill hole SA-0024 (results reported in press
release “Sandman drill holes at North Hill and Silica Ridge
intersect gold mineralization outside of current resource” dated
July 19, 2021) intersected gold mineralization (19.8 m (65 ft) @
0.67 g/t Au from 111.3 m (365 ft), including 9.1 m @ 1.13 g/t Au
from 114.3 m (375 ft)) west of the Silica Ridge deposit, in rocks
that are interpreted to be downthrown on the west side of a normal
fault (Figure 3) below the level of previous drilling. The regional
dip of the Tertiary sequence in the North Hill – Silica Ridge area
is towards the east, so the mineralized receptive units intersected
in SA-0024 can be projected up-dip to the west if mineralisation is
stratiform. 3D contouring of the historic drill hole geochemical
data indicates the presence of a hydrothermal system in this
western target area depositing gold and associated pathfinder
elements such as arsenic in a halo extending over 300 m from the
Silica Ridge deposit (Figure 4). These results further highlight
the prospectivity of this newly identified target zone adjacent a
previously defined Mineral Resource Estimate (MRE) which is largely
untested with drilling.
Figure 3 Cross-section of the
Silica Ridge deposit, including hole SA-0024. Contours of gold
(Au>50 ppb) and arsenic (As>25 ppm) derived from drill hole
geochemical assays are shown. The geochemical anomaly extends west
from SA-0024 and the host units are interpreted to extend up-dip
into this western target area.
Figure 4 Plan view of the
Silica Ridge deposit area. A zone of anomalous gold, arsenic and
other potential pathfinder elements is defined by historic drilling
west of the Silica Ridge Mineral Resource Estimate. Gold
mineralization intersected in hole SA-0024 is hosted in receptive
rocks that extend up-dip into this zone and the zone also continues
northward into the Midway target area.
The Gold Bull exploration team is currently
defining similar target areas to the north of the Abel Knoll
deposit and east of Silica Ridge, where a CSAMT survey is planned
for late August.
Figure 5. General Location map
of the Sandman Project, in proximity to major nearby gold
deposits.
Figure 6 General Location map
of the Sandman Project, located near Winnemucca, Nevada.
Next steps
The Sandman Project is fully permitted for
exploration under a comprehensive Plan of Operation. The next round
of drilling will include deeper (up to 400m) targets below the
current Mineral Resource Estimate (MRE), as well as some
extensional targets based on recent drilling results (for example,
the thick strata-bound mineralization intersected at the SE edge of
the Abel Knoll MRE – see press release “Gold Bull Reports
Significant New Gold Mineralization Outside of Current Resource at
Sandman Including: 90m at 0.6 g/t Au” dated July 28, 2021). A CSAMT
survey is scheduled to commence in about 2 weeks over a regional
target east of Silica Ridge, where surface geochemical sampling
using a portable XRF instrument has defined broad zones of
pathfinder element anomalism. Targets arising from this program
will form part of the next drilling campaign in the fourth quarter
of 2021.
About Sandman
In December 2020, Gold Bull purchased the
Sandman Project from Newmont. Gold mineralization was first
discovered at Sandman in 1987 by Kennecott and the project has been
intermittently explored since then. There are four known pit
constrained gold resources located within the Sandman Project,
consisting of 21.8Mt @ 0.7g/t gold for 494,000 ounces of gold;
comprising of an Indicated Resource of 18,550kt @ 0.73g/t gold for
433kozs of gold plus an Inferred Resource of 3,246kt @ 0.58g/t gold
for 61kozs of gold. Several of the resources remain open in
multiple directions and the bulk of the historical drilling has
been conducted to a depth of less than 100m. Sandman is
conveniently located circa 25-30 km northwest of the mining town of
Winnemucca, Nevada.
Qualified Person
Cherie Leeden, B.Sc Applied Geology (Honours),
MAIG, a “Qualified Person” as defined by National Instrument
43-101, has read and approved all technical and scientific
information contained in this news release. Ms. Leeden is the
Company’s Chief Executive Officer. Cherie Leeden relied on resource
information contained within the Technical Report on the Sandman
Gold Project, prepared by Steven Olsen, a Qualified Person under NI
43-101, who is a Qualified Persons as defined by the National
Instrument NI 43-101. Mr Olsen is an independent consultant and has
no affiliations with Gold Bull except that of an independent
consultant/client relationship. Mr Olsen is a member of the
Australian Institute of Geoscientists (AIG) and is the Qualified
Person under NI 43-101, Standards of Disclosure for Mineral
Projects.
About Gold Bull Resources Corp.
Gold Bull’s mission is to grow into a US focused
mid-tier gold development Company via rapidly discovering and
acquiring additional ounces. The Company’s exploration hub is based
in Nevada, USA, a top-tier mineral district that contains
significant historical production, existing mining infrastructure
and an established mining culture. Gold Bull is led by a Board and
Management team with a track record of exploration and acquisition
success.
Gold Bull’s core asset is the Sandman Project,
located in Nevada which has a 494,000 oz gold
resource as per 2021 43-101 Resource Estimate. Sandman is located
23 km south of the Sleeper Mine and boasts excellent large-scale
exploration potential. Drilling at Sandman is currently
underway.
Gold Bull is driven by its core values and
purpose which includes a commitment to safety, communication &
transparency, environmental responsibility, community, and
integrity.
Cherie LeedenPresident and CEO, Gold
Bull Resources Corp.
For further information regarding Gold Bull
Resources Corp., please visit our website at www.goldbull.ca or
email admin@goldbull.ca.
Cautionary Note Regarding Forward-Looking
StatementsNeither 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.
This news release contains certain statements
that may be deemed “forward-looking statements” with respect to the
Company within the meaning of applicable securities laws.
Forward-looking statements are statements that are not historical
facts and are generally, but not always, identified by the words
“expects”, “plans”, “anticipates”, “believes”, “intends”,
“estimates”, “projects”, “potential”, “indicates”, “opportunity”,
“possible” and similar expressions, or that events or conditions
“will”, “would”, “may”, “could” or “should” occur. Although Gold
Bull believes the expectations expressed in such forward-looking
statements are based on reasonable assumptions, such statements are
not guarantees of future performance, are subject to risks and
uncertainties, and actual results or realities may differ
materially from those in the forward-looking statements. Such
material risks and uncertainties include, but are not limited to,
the Company’s ability to raise sufficient capital to fund its
obligations under its property agreements going forward, to
maintain its mineral tenures and concessions in good standing, to
explore and develop its projects, to repay its debt and for general
working capital purposes; changes in economic conditions or
financial markets; the inherent hazards associates with mineral
exploration and mining operations, future prices of copper and
other metals, changes in general economic conditions, accuracy of
mineral resource and reserve estimates, the potential for new
discoveries, the ability of the Company to obtain the necessary
permits and consents required to explore, drill and develop the
projects and if obtained, to obtain such permits and consents in a
timely fashion relative to the Company’s plans and business
objectives for the projects; the general ability of the Company to
monetize its mineral resources; and changes in environmental and
other laws or regulations that could have an impact on the
Company’s operations, compliance with environmental laws and
regulations, dependence on key management personnel and general
competition in the mining industry. Forward-looking statements are
based on the reasonable beliefs, estimates and opinions of the
Company’s management on the date the statements are made. Except as
required by law, the Company undertakes no obligation to update
these forward-looking statements in the event that management’s
beliefs, estimates or opinions, or other factors, should
change.
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