Carolina Rush Reports Elevated Molybdenum in Deepest Hole Drilled at Brewer, Samples up to 1,320 ppm Mo
Carolina Rush Reports Elevated Molybdenum
in Deepest Hole Drilled at Brewer, Samples up
to 1,320 ppm Mo
Toronto, Ontario--(Newsfile Corp. - January 22, 2025) - Carolina Rush Corporation (TSXV: RUSH)
(OTCQB: PUCCF) ("Carolina Rush," "Rush" or the "Company") is pleased to report results for the final
and deepest drill hole of its recently completed phase IV drill program at the Brewer gold-copper project,
South Carolina. Hole B24C-016x was an extension of a pre-existing hole (B21C-016) initially drilled in
2021 to a depth of 381m.
The hole was collared approximately 500 meters north-northwest of the former
mine (Figure 2) and was extended to a final depth of 658 meters.
The hole was designed to evaluate the
Company's working exploration model that targets a deep copper-gold porphyry system.
Results
indicate elevated molybdenum (Table 1, Figure 1), a critical pathfinder metal, and provides further
evidence that supports the Company's porphyry exploration model.
Key Highlights:
Broad Zones of Anomalous Molybdenum Mineralization
: Hole B24C-016x returned 87 parts
per million (ppm) Mo over the final 185 meters (473-658m).
Higher Grade Molybdenum:
Occurs in discrete zones (e.g. 7.5 meters @276 ppm Mo from 479
- 486.5m) associated with intense quartz-topaz dominated alteration, indicating potential fluid
pathways.
Strategic Insight:
Geochemical and mineralogical data are consistent with high-temperature
alteration, suggesting proximity to a potential porphyry system.
Exploration Model:
As the deepest hole ever drilled at Brewer, this marks a critical step in
testing the Company's exploration model for porphyry style mineralization and provides useful
vectors for further exploration.
"Molybdenum often acts as a valuable guide in porphyry exploration, and these results are highly
encouraging as we advance our understanding of Brewer's deep potential," said Layton Croft, President
and CEO of Carolina Rush. "We decided to extend hole 16 as a cost-effective way to explore the Brewer
system at depth and hole 16x is an important milestone in our journey to understand the potential
porphyry copper-gold target.
To that end, we plan to conduct a deep-sensing geophysical survey that is
designed to provide useful information down to approximately 1,000 meters below surface."
Table 1.
Composited Assay Results for Hole B24C-016x
BHID
From (m)
To (m)
Interval (m)
Mo (ppm)
B24C-016x
473.00
658.00
185.00
87
Incl.
479.00
486.50
7.50
276
And
601.00
602.00
1.00
1,320
And
628.00
634.00
6.00
285
Figure 1.
Vertical Cross Section (looking West).
A) Section displaying downhole molybdenum
values.
B)
Section displaying downhole MDRU Porphyry Index (MPIx) values.
Refer to text for
discussion and figure two for section location.
To view an enhanced version of this graphic, please visit:
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Geologic Discussion
The extension of hole 16 marks the first targeted drill hole aimed at evaluating the potential for Brewer to
host a porphyry Cu (Mo-Au) deposit.
The decision to re-enter hole 16 was a result of a property-wide
compilation of geochemical and geophysical datasets and the recent evaluation of Brewer by renowned
porphyry copper expert, Dr. Richard Sillitoe.
The results of this work suggests that the Brewer magmatic-
hydrothermal system has been rotated and inclined 30-50 degrees to the north-northwest.
The results of
hole 16x give confidence to this exploration model and suggest that additional drilling to target a
potential porphyry will need to explore deeper and further north than our current drill coverage.
A brief
discussion of the vectors being used to help refine the Company's exploration model are provided
below.
Molybdenum Anomalism
Molybdenum commonly acts as a useful vector to porphyry copper mineralization and can be
concentrated in the proximal parts of lithocaps, above source intrusions, as well as forming halos
overlying deeper copper +/- gold mineralization.
The presence of elevated molybdenum in hole 16x
(Figure 1A) suggests a deeper part of the mineral system has been intersected. This, coupled with the
presence of minor chalcopyrite and bornite, further indicates a higher temperature, lower sulfidation
phase of the system as would be expected as you transition from the advanced argillic lithocap
environment to underlying low sulfidation mineralization in the porphyry environment.
MPIx Geochemical Index
The MDRU Porphyry Index (MPIx) developed by the Mineral Deposit Research Unit at University of
British Colombia is used to discriminate between porphyry/proximal from more distal/shallow
mineralizing environments.
Specifically, elements Cu, Mo, W, and Sn that are enriched at the core of
porphyry deposits are ratioed against elements formed in shallow or distal environments, namely As, Sb,
Ag, Tl, and Li.
The index is defined as Cu/10 + Mo +(10*W) + (20*Sn)/ (5*Sb) + (20*Tl) + Ag + As + Li.
Hole 16x shows a pronounced increase in MPIx values towards the bottom of the hole, correlating with
increased Mo, and is in sharp contrast to the lower MPIx values associated with the Au-Cu mineralization
in the higher-level Brewer and Tanyard breccia zones (Figure 1B).
Taken together, the mineralogic and
geochemical indicators give the Company confidence that we are vectoring closer to a potential
porphyry system to the north-northwest of the historic Brewer gold mine.
Figure 2.
Brewer Project Plan Map Showing Drill Hole Locations and Cross Section Location
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Quality Assurance and Quality Control Statement
The Company's 2023-2024 exploration diamond core drilling was HQ and/or NQ size. The core was
logged and marked for sampling and assaying by geologists contracted by Rush. Samples, typically 1.5
meters in length, were sawn in half using a diamond core saw and one-half of the core was placed in
sample bags and tagged with unique sample numbers, while the remaining half was kept in the core box
for storage. Each bagged core sample was shipped to ALS Laboratory in Twin Falls, ID where it was
dried, crushed and pulverized to >80% passing -200 mesh. Gold was analyzed by fire assay (30 g) with
an AA (atomic absorption) finish (method Au-AA23) with detection limits of 0.005 g/t gold. Samples
containing greater than 10.0 g/t gold are analyzed by fire assay with a gravimetric finish (method Au-
GRA21). Multielement analyses were analyzed with ICP-MS following a four-acid digestion (method ME-
MS61) and samples containing >1.0% copper are reanalyzed using method Cu-OG62. ALS Minerals is
accredited in accordance with International Standard ISO/IEC 17025:2017 and also inserts its own
certified reference materials plus blanks and duplicates. Strict sampling and QA/QC protocols are
followed, and assay integrity is monitored internally with a quality control program including the insertion
of standards and blanks every 10
th
sample within the sample stream. Assay results are reviewed, and
discrepancies are investigated prior to incorporation into the Company's database.
Qualified Person
The technical information in this news release has been prepared in accordance with Canadian
regulatory requirements as set out in NI 43-101 and reviewed and approved by Patrick Quigley, MSc,
CPG-12116, the Company's Senior Geologist and Exploration Manager and a Qualified Person as
defined by NI 43-101.
About Carolina Rush
Carolina Rush Corporation (TSXV: RUSH) (OTCQB: PUCCF) is exploring the Carolina Terrane in the
southeastern USA. Its flagship Brewer Gold-Copper Project is located at the past-producing, 397-
hectare Brewer Gold Mine property in Chesterfield County, South Carolina, 17 kilometers along trend
from the producing Haile Gold Mine. In January 2023, the Company signed exclusive mineral exploration
lease and purchase option agreements for both the 246.6-hectare New Sawyer Gold Mine Property and
the 54.6-hectare Sawyer Gold Mine Property, both located on the Sawyer Gold Trend and in Randolph
County, North Carolina.
For further information, please contact:
Layton Croft, President and CEO
or
Jeanny So, Corporate Communications Manager
E:
T: +1.647.202.0994
For additional information please visit our new website at
http://www.TheCarolinaRush.com/
and our X
feed:
https://twitter.com/TheCarolinaRush
.
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