New Gneiss-Hosted Gold, Arsenic, and
Bismuth Soil Anomalies Point to Pogo-like Targets
VANCOUVER, BC, Oct. 26, 2020 /CNW/ - Tectonic Metals
Inc. (TSX-V: TECT; OTCQB: TETOF) ("Tectonic" or the
"Company") today announced the results of the Company's Summer 2020
soil sampling campaign at the Tibbs Gold Project ("Tibbs"), located
35 kilometres ("km") east of Northern Star Resources' Pogo Gold
Mine ("Pogo") in the Goodpaster Mining District ("Goodpaster"),
Alaska. Tectonic's soil sampling
targeted the underexplored, western portion of the Tibbs property
after recent mapping highlighted low-angle faults within moderately
dipping gneissic rocks, which are key characteristics of the Pogo
geological model. Tectonic deployed a soil sampling crew in these
newly identified areas collecting 1,153 samples. Soil assay results
have now identified numerous high-tenor, drill-ready targets which
share identical host rocks and geochemical signatures to
mineralization observed at Pogo in a similar structural setting
consisting of low-angle faults and shears.
Key Takeaways
- Multiple 1 km Long Drill-Ready Targets Highlight Potential for
Pogo-style Mineralization
- Newly Identified Gneiss-Hosted Gold-in-Soil Anomalies
-
- Soil sampling in the west of the Tibbs property identified new
geochemical anomalies with gold-arsenic-bismuth-tungsten,
gold-arsenic-antimony, and gold-arsenic signatures; identical
signatures as the mineralization observed at Pogo
- Zoned Mineralizing System Now Found, Indicating High Levels of
Mineralizing Fluid Flow
-
- Multiple styles of gold mineralization observed within the
Tibbs footprint
- Elemental zonation, which may aid in vectoring towards
additional zones of high-grade gold mineralization, shows both
proximal and distal intrusion-related gold signatures and vein
styles
- Proximal: Gold-Arsenic-Bismuth-Tungsten anomalies may be
indicative of additional high-grade lodes analogous to Gray
Lead/Pogo-style vein mineralization
- Distal: Gold-Arsenic-Antimony anomalies are consistent with
Michigan-style mineralization where Tectonic identified high-grade
gold mineralization in its 2019 and 2020 drill programs
- 2020 Soil Sampling Program Validates Underexplored Nature and
Potential at Tibbs
-
- Exploration work to date has focused on high-grade gold targets
at surface and within high-angle structures at the contact zone
between gneiss and intrusive rocks, and within the intrusive rocks
themselves. However, no work has been conducted until now in the
west of the project area in the gneissic rocks, despite the
>25-year history of modern exploration at Tibbs
- The discovery of new, gneiss-hosted soil anomalies represents
the next evolution of the targeting methodology at the Tibbs
project, and opens the prospect of Pogo-like mineralization west of
the previously known exploration targets
- Plan maps of the 2020 soil sampling program at Tibbs may be
viewed by clicking here
Tony Reda, President and CEO of
Tectonic Metals, commented, "Our 2020 soil survey at Tibbs
identified significant gneiss-hosted gold-in-soil anomalies in
areas with low-angle faulting and shearing. These anomalies
indicate mineralizing fluids traveled not only through the known
high-angle structures within the intrusive rocks at Tibbs, but also
through the gneissic rocks found in the western part of Tibbs.
Low-angle thrust faults are mapped within these gneissic rocks and
are now tied to increased gold-in-soil anomalism. This is a
powerful new observation, as gneissic rocks also host the Liese
veins at Pogo, just 35km away. We again see potential for true,
Pogo-style mineralization at Tibbs, and are excited to test these
new targets."
2020 Soil Sampling Program – New Exploration Targets
Generated
During the 2020 RAB drilling campaign at Tibbs, Tectonic
collected a total of 1,153 soil samples to both infill and expand
the historic soil grid over previously untested ground to the west
and east. The goal of the soil program was to generate new
exploration targets with a focus on exploring the low-angle faults
within moderately dipping gneissic rocks in the west of the
property, which appears to be never targeted at Tibbs. Five soil
grids were sited over gneissic rocks found to the west of the
Wolverine Zone ("Wolverine") in the north and the Gray Lead Zone
("Gray Lead") in the south. Samples were collected along east-west
oriented lines on 50 metre ("m") sample spacing, with lines spaced
100m apart. A sixth grid was
established east of the Blue Lead Zone ("Blue Lead"), with samples
collected along east-west oriented lines on 50m sample spacing, with lines spaced
200m apart to cover additional
ground.
Each soil grid returned multiple soil samples in excess of 100
ppb Au, with a global range of trace to 987.3 ppb Au. It is
worth noting that Tectonic has established, through the use of the
recently acquired Goodpaster data set (see here), that the
98th percentile threshold for gold-in-soil values in the
Goodpaster district is approximately 24 ppb, suggesting any value
greater than 20 ppb warrants further investigation. Interestingly,
multiple new anomalies have been identified entirely within
gneissic host rocks, including a 2.5km long, NE-SW trending
gold-arsenic anomaly in the southwest of the property found
approximately 500m northwest of
historic diamond drilling at Gray Lead. In addition, a high-tenor
gold-in-soil anomaly with coincident arsenic, bismuth and tungsten
was discovered 1,200m west of the
Lower Trench Zone ("Lower Trench") in previously untested ground.
This new anomaly, yet unnamed, is hosted by moderately dipping
gneisses cut by a mapped diorite dike.
New Soil Anomalies Highlight Pogo Model
At Pogo, 35km west of Tibbs, gold-bearing veins formed in
high-angle (steep) and low-angle (shallow) structural zones within
gneissic host rocks. High quality exploration targets at Tibbs,
including Gray Lead, are found along the margin of the same
gneissic dome which hosts Pogo. Gray Lead is one of the few
places in the Goodpaster where high-angle veins with Pogo-style
geochemical and petrological characteristics are found (see Table
1). The Gray Lead vein in particular shares the same average
thickness, orientation, multi-ounce gold grades, high gold-bismuth
correlation, and fluid petrochemistry as the North Zone veins at
Pogo. However, the Gray Lead vein is found within a high-angle
contact zone between gneisses in the west and intrusive rocks in
the east. No advanced exploration work has been conducted west of
Gray Lead to test for both low and high-angle structures within the
gneissic rocks, where Pogo-style mineralization would be
expected.
Critically, the newly defined, gneiss-hosted soil anomalies
exhibit geochemical associations (gold-arsenic-bismuth-tungsten)
typical of a mineralization observed in high-grade gold-bearing
quartz veins at Gray Lead, which in turn closely resembles
mineralization observed at Pogo. In addition, low angle thrust
faults in the gneissic rocks at Tibbs have been mapped by the
United States Geological Survey ("USGS") and previous workers.
Low-angle, reactivated shear zones are critical to the Pogo
geological model as the structural host for the high-grade,
low-angle Liese veins.
The combination of identical host rocks, a similar structural
setting, including known low-angle shears, similar geochemical
signature, and the immediate presence of Pogo-style quartz veining
at Gray Lead makes these new soil anomalies prime candidates for
follow up.
Table 1: Comparison of the Gray Lead and
Michigan Zones at the Tibbs Gold Project with mineralization
observed at Pogo Gold Mine
Characteristic
|
Pogo
|
Tibbs - Gray
Lead
|
Tibbs -
Michigan
|
Alteration
Assemblages
|
Qtz-sericite,
biotite
|
Qtz-biotite
|
Qtz-sericite
|
Carbonate
Alteration
|
Fe-dolomite in/near
veins
|
Ankerite in/near
veins
|
Ankerite in/near
veins
|
Gold
Fineness
|
~900
|
Unknown
|
Unknown
|
Primary
Sulphides
|
Aspy
Bi+/-Po
|
Aspy Bi
|
Aspy Stib
Py
|
Late Stage
Mineralization
|
As-Sb
Sulphides
|
As-Sb
Sulphides
|
As-Sb
Sulphides
|
Tungsten
Mineralization
|
Scheelite in skarns
and veins
|
W in proximal
veins
|
W absent
|
Bismuth
Mineralization
|
Strong Au
Correlation
|
Strong Au
Correlation
|
No
Correlation
|
Tellurium
Mineralization
|
Strong Au
Correlation
|
Strong Au
Correlation
|
No
Correlation
|
Fluid
Chemistry
|
CO2, low
salinity
|
CO2 rich, low
salinity
|
CO2 rich, low
salinity
|
Age of
Mineralization
|
104.2 Ma
|
102 Ma
|
102 Ma
|
Sulphur
Isotopes
|
Unknown
|
Unknown
|
Unknown
|
Homogenization
Temp.
|
310-570 C
|
260-455 C
|
200-400 C
|
Current Deposit
Model
|
Plutonic-related
Au
|
Plutonic-related
Au
|
Plutonic-related
Au
|
Source: Tectonic
Metals Inc.; publicly available data
|
Next Steps – The Gneiss Frontier
Tectonic has rapidly and effectively tested a number of
occurrences of high-grade gold at surface at Tibbs, including the
successful follow-up RAB drill campaigns at the Michigan Zone
("Michigan") and Lower Trench recently released (see here). Tibbs
has been shown to host at least two styles of mineralization as
part of a single, comprehensive, regional-scale intrusion-related
gold system, with both "proximal" (Gray Lead) and "distal"
(Michigan) components. Both styles
of mineralization carry high-grade gold and require significant
follow up.
Exploration work to date has focused on high-grade gold targets
at surface and within high-angle structures at the contact zone
between gneiss and intrusive rocks, and within the intrusive rocks
themselves. However, no work has been conducted in the west of the
project area in the gneissic rocks, despite the >25-year history
of modern exploration at Tibbs. The discovery of new, gneiss-hosted
soil anomalies represents the next evolution of the targeting
methodology at the Tibbs project, and opens the prospect of
Pogo-like mineralization west of the currently known exploration
targets.
Qualified Person & QA/QC
Tectonic's disclosure of a technical or scientific nature in
this press release has been reviewed, verified, and approved by
Eric Buitenhuis, M.Sc., P.Geo.,
Tectonic's Vice President Exploration, who serves as a Qualified
Person under the definition of National Instrument 43-101.
The analytical work for the 2020 Tibbs soil sampling program was
performed by Bureau Veritas Laboratories ("BV"), an internationally
recognized and accredited analytical services provider, which is
independent of Tectonic. All soil samples were prepared using
procedure SS80 (dry at 60 C and sieve 100g at -80 mesh) and
analyzed by method AQ201 (aqua regia digestion and ICP-MS
analysis). Field duplicate samples are collected at regular
intervals and analysed within the sample stream. Samples are placed
in sealed bags and shipped directly to the BV preparation facility
in Fairbanks, Alaska.
About Tectonic
Tectonic Metals Inc. is a mineral exploration company created
and operated by an experienced and well-respected technical and
financial team with a track record of wealth creation for
shareholders. Key members of the Tectonic team were involved
with Kaminak Gold Corporation, the company that raised C$165 million to fund the acquisition, discovery
and advancement of the Coffee Gold Project in the Yukon Territory through to the completion of a
bankable feasibility study before selling the multi-million ounce
gold project to Goldcorp Inc. (now Newmont Goldcorp) for
C$520 million in 2016.
Tectonic is focused on the acquisition, exploration, discovery
and development of mineral resources from district-scale projects
in politically stable jurisdictions that have the potential to host
world-class orebodies.
Tectonic believes that responsible mineral exploration and
development can positively impact the communities in which the
company lives and operates and is committed to early and ongoing
community engagement, best practices in environmental stewardship
and the development of a strong safety culture. Whether at home or
at work, the Tectonic team is grounded on the following core
values: passion, integrity, patience, focus, perseverance,
honesty, fairness, accountability, respect, and a play big
mindset. The company works for its shareholders and is
committed to creating value for them.
On behalf of Tectonic Metals Inc.,
Tony Reda
President
and Chief Executive Officer
For further information about Tectonic Metals Inc. or this news
release, please visit our website at www.tectonicmetals.com or
contact Bill Stormont, Investor
Relations, at toll-free 1.888.685.8558 or by email at
info@tectonicmetals.com.
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Cautionary Note Regarding Forward-Looking Statements and
Historical Information
Certain information in this news release constitutes
forward-looking information and statements under applicable
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be forward-looking statements. Forward-looking statements are often
identified by terms such as "may", "should", "anticipate",
"expect", "intend" and similar expressions and include, but are not
limited to, statements with respect to the potential for
mineralization at Tectonic's projects and any future exploration
activities. The Company makes no representation
or warranty regarding the accuracy or completeness of any
historical data from prior exploration undertaken by others other
than the company and has not taken any steps to verify, the
adequacy, accuracy or completeness of the information provided
herein and, under no circumstances, will be liable for any
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Forward-looking information is not a guarantee of future
performance and is based upon a number of estimates and assumptions
of management at the date the statements are made including, among
others, assumptions about future prices of gold and other metal
prices, currency exchange rates and interest rates, favourable
operating conditions, political stability, obtaining
governmental and other approvals and financing on time,
obtaining required licenses and permits, labour stability,
stability in market conditions, availability of equipment, accuracy
of any mineral resources, successful resolution of disputes and
anticipated costs and expenditures. Many assumptions are based on
factors and events that are not within the control of
Tectonic, and there is no assurance they will prove to be
correct.
Although Tectonic considers these beliefs and assumptions to
be reasonable based on information currently available to it, they
may prove to be incorrect, and the forward-looking statements in
this release are subject to numerous risks, uncertainties and other
factors that may cause future results to differ materially from
those expressed or implied in such forward-looking statements.
Forward-looking statements necessarily involve known and unknown
risks, including, without limitation: the Company's ability to
implement its business strategies; risks associated with mineral
exploration and production; risks associated with general economic
conditions; adverse industry events; marketing and transportation
costs; loss of markets; volatility of commodity prices; inability
to access sufficient capital from internal and external sources,
and/or inability to access sufficient capital on favourable terms;
industry and government regulation; changes in legislation, income
tax and regulatory matters; competition; currency and interest rate
fluctuations; and other risks.
Readers are further cautioned not to place undue reliance on
forward-looking statements as there can be no assurance that the
plans, intentions or expectations upon which they are placed will
occur. Such information, although considered reasonable by
management at the time of preparation, may prove to be incorrect
and actual results may differ materially from those anticipated.
Forward-looking statements contained in this news release are
expressly qualified by this cautionary statement. Although Tectonic
has attempted to identify important factors that could cause actual
results to differ materially from those contained in
forward-looking information, there may be other factors that cause
results not to be as anticipated, estimated or intended. There can
be no assurance that such information will prove to be accurate, as
actual results and future events could differ materially from those
anticipated in such statements. Accordingly, readers should not
place undue reliance on forward-looking information. Tectonic does
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accordance with applicable securities laws.
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