Universal Copper Ltd.
(
"Universal
Copper" or the
"Company") (TSX Venture:
UNV) (Frankfurt:
3TA2) has
completed a comprehensive 3-Dimensional (
“3D”)
geological modelling initiative to establish the controls on the
distribution of higher-grade mineralization at the Company’s
flagship Poplar Copper Deposit (
“Poplar”) which
will be used to direct ongoing exploration drilling at Poplar in
2023. This is the first time a 3D geological model has been created
for the Poplar deposit and it demonstrates the project has
considerable exploration upside potential:
-
Higher-grade
copper-molybdenum-gold-silver
mineralization is focused along porphyry
intrusion contacts; these contact
zones have not been the focus of historic
exploration
drilling.
- The
deposit is open at depth, toward the north and toward the
east
- Numerous
higher-grade targets (porphyry
intrusion contacts,
step-outs,
step-downs, and down-plunge
target zones) are
present both internal
to and adjacent to the Poplar Resource
suggesting there is excellent potential to increase the grade and
tonnage of the resource.
- The
Poplar deposit is one of the few
remaining road accessible porphyry copper-molybdenum-gold-silver
deposits in British Columbia with the potential for grade and
resource expansion as well as the
potential for discovery of
additional new porphyry centers within
the large land
position.
Clive Massey, Universal Copper’s CEO, stated:
“The newly recognized geological controls on
copper-molybdenum-gold-silver mineralization are the result of a
dedicated 8-month 3D geological modelling effort based on
logging/relogging of drill core, lithogeochemistry, mineralization
zonation, and newly acquired alteration data. This campaign has
yielded a heighten understanding of the distribution of
higher-grade mineralization at Poplar.” Mr. Massey added,
“Furthermore, the work has established a predictive modeling
framework which will be central to targeting exploration drill
holes in 2023 where we will continue to add high-grade tonnes to
the Poplar deposit.”
Figure 1. Distribution of
Copper-Gold-Molybdenum-Silver
Please click here to view image
Recent high-grade intercepts include drill hole
22-PC-138 which cut 214.4 meters @ 0.500% CuEq* (0.401% copper,
0.15 g/t gold and 1.27 g/t silver) as well as drill hole 22-PC-137
that contained 0.535% CuEq* (0.353% copper, 0.14 g/t gold and 5.91
g/t silver) over the last 216 metres of the hole (see news releases
from July 12, 2022, and May 31, 2022). These recent drill results
indicate copper-molybdenum-gold-silver mineralization in new search
spaces is extensive, continuous, and controlled by the host rock
geology. Prior to this year, a 3D geological model had not
previously been developed for the Poplar deposit. The new model
will be used to target higher grade mineralization and to increase
the size of the deposit through diamond drilling going forward (see
below).
* Copper equivalents based on the following:
copper US$9,972.10 per tonne, gold US$1,816.60 per ounce, silver
US$22.90 and molybdenum US$41,836.39 per tonne.
New 3D Geological Modeling of the Poplar
Resource
Systematic geological modeling was done at the
Poplar deposit to identify the controls on
copper-molybdenum-gold-silver mineralization, establish the 3D
mineral deposit geometry, and to evaluate the distribution and
continuity of higher-grade mineralized shoots (Fig. 1). A first
pass core re-logging initiative using historical drill core at
Poplar demonstrated: 1) higher grade shoots and zones of the
deposit are controlled by intrusive, volcanic, and sedimentary
contacts, and 2) the overlap in the distribution of
mineralization-distal (quartz-sericite-pyrite) and
mineralization-proximal (K feldspar and biotite) alteration
assemblages suggest the deposit is the product of two or more
overlapping copper-molybdenum-gold-silver porphyry systems
(telescoping). Based on this new understanding, the 3D modeling
work was constrained by updated lithogeochemical characterization
of rock types, modeling of rock type distribution, and by the
zonation of alteration minerals and metals.
Lithogeochemical Rock
Classification
Previous attempts to construct a 3D geological
model for the Poplar deposit have been hindered by a lack of
consistently defined key rock units. Universal Copper has utilized
the historical multi-element geochemical drill core database at
Poplar to generate a revised host rock classification scheme based
on immobile elements (Ni-Th and Zr-Ti) which can be used to
“fingerprint” rock types and generate an internally consistent rock
classification scheme (Fig. 2).
Figure 2. Geochemical Modeling
Example and Basic
Lithologic Relationships
at Poplar
Please click here to view image
Lithological Modeling
Lithological modeling based on the 2022 core
relogging work as well as newly defined lithogeochemical units was
completed to characterize the Poplar deposit architecture and to
constrain the controls on mineralization. The oldest rocks at
Poplar consist of layered sedimentary and volcanic rocks that dip
shallowly to moderately toward the east and are intruded by the C
Porphyry (mineralized), followed by the X Porphyry (mineralized)
and then by a series of sills, dikes, and other post mineral
intrusions (Fig. 1). The X porphyry occurs as vertical bodies
internal and marginal to the C porphyry. Comparing the orientation
of the layered rocks (sedimentary and volcanic) to the orientation
of the X Porphyry suggests the deposit may be tilted toward the
east, imparting a steep westerly plunge to the
magmatic-hydrothermal system. The newly recognized geometry for X
Porphyry contacts is a first-order control on high-grade
mineralization.
Alteration Modeling
Alteration modeling at Poplar was conducted
using 12 representative drill holes across the deposit where higher
grade mineralization is present. A Terraspec was used to generate
Short Wave Infrared (“SWIR”) data to quantify the alteration
mineralogy at regular intervals down the drill holes.
Mineralization-distal alteration zones (quartz-sericite and
chlorite-epidote) overlap with mineralization-proximal alteration
zones (potassium feldspar-biotite) suggesting the deposit may be a
product of two or more overlapping porphyry-type mineralizing
events (telescoping; Fig. 3). Telescoped porphyry deposits can have
mineralized root zones, as well as multiply overprinted high-grade
zones with elevated vein density.
Figure
3. Alteration Zonation
and Mineralization at the Poplar Deposit
* *Copper equivalents based on the following: copper US$9,972.10
per tonne, gold US$1,816.60 per ounce, silver US$22.90 and
molybdenum US$41,836.39 per tonne.
Please click here to view image
Targets
The Universal Copper technical team has improved
the understanding of the distribution of higher-grade
mineralization at Poplar and is continuing to build out a
predictive modeling framework. The new 3D geological framework will
be directly applied toward upcoming drill campaigns, which are
being designed to test the newly recognized search spaces both
inside and adjacent to known mineralized volumes. Multiple
high-priority target zones have been identified and the team
anticipates further refinement of the exploration framework as new
datasets come into focus from 2023 drilling.
About Poplar
The 61,566-hectare Poplar Project hosts a
current undiluted indicated mineral resource of 152.3 million
tonnes grading 0.32 per cent copper, 0.009 per cent molybdenum,
0.09 g/t gold and 2.58 g/t silver and an undiluted inferred mineral
resource of 139.3 million tonnes grading 0.29 per cent copper,
0.005 per cent molybdenum, 0.07 g/t gold and 4.95 g/t silver. The
mineral resource estimate has a cut-off grade of 0.20% copper.
Universal Copper cautions investors mineral resources, which are
not mineral reserves, do not have demonstrated economic
viability.
Poplar lies in a historic mining region, located
35km from the Huckleberry Mine and 42km from Equity Silver Mine,
where low snowfalls will allow year-round work. The road accessible
property is bisected by a 138 Kva Hydro electric line and lies 88km
from the rail head at Houston and 400km from the deep-water port at
Prince Rupert by rail.
Qualified Person
The technical content of this New Release has
been reviewed and approved by R. Tim Henneberry, P. Geo (BC) a
member of the Company’s Advisory Board and a Qualified Person under
National Instrument 43-101.
About Universal Copper
Universal Copper Ltd. is a Canadian-based copper
exploration company focused on the acquisition and exploration of
copper properties. The Company's management team has many years of
experience in exploration, finance, and efficient public company
management. Universal's current focus is on advancing the Poplar
Copper Project, one of the most advanced pre-production copper
projects in British Columbia with a historic 43-101 resource.
For additional information, please visit the Company's website
at www.universalcopper.com
ON BEHALF OF THE BOARD OF
DIRECTORS
“Clive Massey” Clive H. MasseyPresident &
CEO
For further information, please
contact:Investor RelationsPhone: (604) 341-6870
Neither 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.
Forward-Looking Statements
This news release contains certain statements
that may be deemed "forward-looking" statements. 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”, and similar expressions, or that events or
conditions "will", "would", "may", "could" or "should" occur.
Although Universal Copper Ltd. believes the expectations expressed
in such forward-looking statements are based on reasonable
assumptions, such statements are not guarantees of future
performance and actual results may differ materially from those in
forward looking statements. Forward looking statements are based on
the beliefs, estimates and opinions of Universal Copper Ltd.
management on the date the statements are made. Except as required
by law, Universal Copper Ltd. 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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