Encouraging Copper Results from Maiden Scout Drill Program at Dora Prospect
Encouraging Copper Results from Maiden
Scout Drill Program at Dora Prospect
Vancouver, British Columbia--(Newsfile Corp. - September 5, 2023) - CopperCorp Resources Inc.
(TSXV: CPER) (OTCQB: CPCPF) ("CopperCorp" or the "Company") is pleased to report assay results
from its maiden scout drilling program at the Dora prospect located in the Skyline Project, western
Tasmania, Australia.
Summary
Results received for the Company's maiden drill program designed as a scout concept test of the
5km-long outcropping mineralization system at the Dora prospect
1,2
. The scout program is the first
drilling to target the under-explored trend and was co-funded by the Tasmanian government under
their Exploration Drilling Grant Incentive (EDGI) scheme.
Two diamond core holes (D3-001 and D2-002) totalling 788.7m drilled on the Dora 3 target testing
outcropping Cu-Au anomalies. The target concept was confirmed with both holes intersecting
broad zones of anomalous IOCG-style copper mineralization.
Best intercepts include:
29.0m @ 0.18 % Cu
from 248m, including
4.0m @ 0.46% Cu and 0.12g/t Au and 31.4g/t
Ag
from 249m (D3-001).
34.0m @ 0.12% Cu
from 212m (D3-002).
Copper mineralization comprising disseminated, breccia, and vein style chalcopyrite in moderate
to strongly magnetite-chlorite to potassic (k-feldspar) altered host rocks. The intensity of alteration
and mineralization and generally low tenure of copper grades possibly indicates that the holes
intersected the lower-grade, less intense parts of a larger IOCG system.
The results are highly encouraging and emphasize the exploration potential at the Dora prospect
and greater Skyline project area and further exploration work is being planned to expand the
Company's understanding of the potential of this system.
Stephen Swatton, President and CEO of CopperCorp, commented:
"This limited drill program at the Dora has confirmed the presence of IOCG style mineralization at the
Dora prospect. On a district scale, the larger IOCG system is interpreted to extend over a strike length
of some 95km - over which the Company holds a dominant land position including the newly acquired
and highly prospective Razorback Project
3
.
The IOCG system has genetic connections with the world
class Mount Lyell copper deposit (see figure 2). Further drilling at Dora had to be postponed due to
challenging and atypical weather conditions encountered for the duration of the drilling contract. This
first scout program has proved proof of concept and Dora warrants further exploration and drilling as
this limited program has barely tested the target."
Skyline Project
The Skyline Project (EL16/2018) covers 97 km
2
of prospective ground along the eastern margin of the
highly mineralized Cambrian-aged Mount Read Volcanics (MRV) belt. Two large-scale operating mines
lay within 5 km of the project - the Mt Lyell Cu-Au deposit (3 Mt Cu and 3 Moz Au @ 1.0% Cu and 0.3g/t
Au)
4
, and the Henty Au deposit (1.64 Moz Au @ 12.5 g/t Au)
4
.
At the Dora prospect a northwest trending zone of highly prospective outcropping Cu-Au mineralization
extends over a strike length of approximately 5km
1
. Despite evidence for a potentially significant Cu-Au
system at Dora, the area had previously remained untested by drilling. CopperCorp identified four
priority target areas at Dora
2
, with two of the target areas (Dora 2 and Dora 3) originally selected for
initial drilling
2
.
Only the Dora 3 target area was tested by drilling as the program was cut short due to
adverse weather conditions and associated logistical issues.
Exploration Concept
The Mount Read Volcanics (MRV) is an arcuate belt of Cambrian aged calc-alkaline volcanic sequences
and broadly co-magmatic granitoid intrusives. It is host to several world-class polymetallic base metal,
Cu-Au, and Au-only deposits. The MRV formed in sub-marine rift basins related to a post-subduction
extensional tectonic regime during the Middle Cambrian Tyennan-Delamerian Orogeny.
CopperCorp has recognized a large, district-scale magmatic-hydrothermal IOCG style Cu-Au and REE
system is developed along the eastern margin of the MRV belt associated with a spine of Cambrian
aged magnetite-series, K-Ba-REE rich, alkaline granitoid-porphyry intrusives that drive the
mineralization system. The regional tectonic setting (post-collisional/back-arc setting), calc-alkaline
volcanic host rocks and style of Cu-Au mineralization/alteration of the MRV can be broadly compared
with the Andean Coastal Cordillera IOCG belt which hosts numerous large Cu-Au deposits such as
Candelaria (470Mt @ 0.95% Cu, 0.22g/t Au).
The exploration potential of the IOCG system is illustrated by historical drill intercepts into IOCG style
mineralization at CopperCorp's recently acquired Razorback Project
3
including
13.4m @ 1.6% Cu and
1.6g/t Au
from 61.6m (drillhole JP2)
3
at the Jukes prospect. Potential for rare earth element (REE)
mineralization is also recognized with previous exploration drilling returning REE intercepts of
30.0m @
2.1% TREO
(drillhole SDD005)
3
, and anomalous REE's in surface rock chip sampling up to
16.2%
TREO
3
at the South Darwin prospect with limited follow-up exploration.
Drilling Results
Dora 3 Target Area
:
The Dora 3 target area comprises an elongate zone, some +500m in strike length (open), of outcropping
mineralization in an altered volcaniclastic host rock sequence. Anomalous assays from rock sampling in
the Dora 3 area has included up to 1.03% Cu with 0.4g/t Au, 21g/t Ag and 0.13% Zn
1,2
.
The Company completed a scout drilling program at the Dora 3 target comprising 2 drill holes for a total
of 788.7m. Drilling was designed to test for IOCG style mineralization highlighted by surface mapping
and geochemistry. No previous drilling had been undertaken in the target area.
Both drill holes intersected multiple zones of low-grade disseminated and vein style chalcopyrite
mineralization (see Figures 4-6). Elevated values of gold, silver, lead and zinc are associated with the
copper mineralization. Mineralized assay intervals for D3-001 and D3-002 are detailed in Table 2 and
include best results of:
D3-001:
29.0m @ 0.18 % Cu
from 248m, including
4.0m @ 0.46% Cu and 0.12g/t Au and 31.4g/t Ag
from 249m.
D3-002:
34.0m @ 0.12% Cu
from 212m (D3-002).
Host rock lithology in the drill holes comprises quartz-feldspar-phyric rhyolites, diverse felsic
volcaniclastic rocks, feldspar-biotite-hornblende-phyric andesites and related mafic-intermediate
volcaniclastic rocks.
Both holes intersected similar styles of hydrothermal alteration including K-feldspar-
chlorite, chlorite-magnetite-pyrite, and sericite-chlorite-carbonate alteration facies.
Copper
mineralization in the form of disseminated, blebby and whispy stringer-vein chalcopyrite is predominantly
associated with the chlorite-magnetite alteration zones.
The alteration types and mineralization styles in the Dora drill holes are consistent with those observed
elsewhere in the district-scale MRV IOCG system and also in IOCG terrains worldwide.
At the
Company's recently acquired Razorback Project, high-grade Cu-Au and REE intercepts in historical
drilling is associated with similar host rocks and alteration/mineralization styles as observed in the Dora
prospect holes.
Deep levels of the Mt Lyell copper-gold system (3Mt contained copper) are also known
to contain zones of significant magnetite contents that have been previously interpreted to have affinities
with Razorback style mineralization.
Other Business
New Tenements Granted
As previously reported (refs) the Company previously submitted tenement applications for EL15/2022
(Whiskey Creek Project) and EL8/2023 (Razorback Project).
Both these tenements have now been
granted and the Company looks forward to providing further information and updates on these
tenements in the near future.
Drill Hole Location Data
Hole ID
Easting
Northing
Elevation (m)
Azimuth
Inclination
Depth (m)
D3-001
387745
5354686
765
240
-50
392.5
D3-002
387745
5354686
765
290
-60
396.2
Table 1. Dora 3 target area CopperCorp drill hole location and summary data (this news release).
Significant Mineralized Intervals (0.1% Cu cut-off)
Hole Number
From (m)
To (m)
Interval (m)
Cu (%)
Au (g/t)
Ag (g/t)
Pb (%)
Zn (%)
D3-001
133.0
136.0
3.0
0.13
0.02
1.8
0.004
0.04
D3-001
152.0
159.0
7.0
0.11
0.03
6.3
0.04
0.08
D3-001
214.0
228.0
14.0
0.13
0.03
6.5
0.12
0.3
D3-001
248.0
277.0
29.0
0.18
0.04
16.0
0.23
0.23
including
249.0
253.0
4.0
0.46
0.12
31.4
0.45
0.51
and
272.0
277.0
5.0
0.24
0.05
43.3
0.48
0.18
D3-002
212.0
246.0
34.0
0.12
0.03
2.3
0.03
0.11
including
234.0
236.0
2.0
0.36
0.2
6.6
0.26
0.36
275.0
291.0
16.0
0.10
0.02
4.5
0.11
0.10
302.0
303.0
1.0
0.18
0.37
4.0
0.05
0.04
Table 2: Dora 3 target area significant drillhole mineralized intercepts reported in this news release.
Reported grades are calculated as down-hole length weighted averages. A 0.1% Cu lower cut-off
grade is applied. Intercepts are downhole intervals.
Figure 1. Location plan showing CopperCorp's exploration licenses and project areas in western
Tasmania, Australia.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8950/179523_47507322249cdabd_002full.jpg
Figure 2. Skyline and Razorback project areas with TMI magnetics image.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8950/179523_47507322249cdabd_003full.jpg
Figure 3. Drill hole locations with TMI RTP image and surface rock sample copper assays.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8950/179523_47507322249cdabd_004full.jpg
Figure 4. Photo of drill core from hole D3-001, 250.0m, showing disseminated chalcopyrite in k-
feldspar-chlorite-magnetite altered rhyolite.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8950/179523_47507322249cdabd_005full.jpg
Figure 5. Photo of drill core from hole D3-001, 261.8m, showing whispy chalcopyrite veins in chlorite-
magnetite altered andesite.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8950/179523_47507322249cdabd_006full.jpg
Figure 6. Photo of drill core from hole D3-001, 273.8m, showing whispy chalcopyrite-pyrite veins in k-
feldspar and chlorite-magnetite altered andesite.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8950/179523_47507322249cdabd_007full.jpg
About the Skyline Project
The Skyline Project (EL16/2018) covers 97 km
2
of prospective ground along the eastern margin of the
highly mineralized subduction-related, Cambrian-aged calc-alkaline volcanic arc of the Mount Read
Volcanics belt. Two large-scale operating mines lay within 5 km of the project - the Mt Lyell Cu-Au
deposit (3 Mt Cu and 3 Moz Au @ 1.0% Cu and 0.3g/t Au)
4
, and the Henty Au deposit (1.64 Moz Au @
12.5 g/t Au).
4
The project was acquired by the Company through its acquisition of Georgina Resources
Pty Ltd in November 2020.
Further information on the project is detailed within the NI43-101 technical
report
1
.
About CopperCorp
CopperCorp is a well-financed mineral exploration company with approximately C$5.2M in working
capital as of June 30, 2023 and is exploring in locations that could host world class size copper-gold
deposits in western Tasmania, Australia.
Quality Assurance / Quality Control on Assay Results
Full information on historical exploration activities and results at the Dora prospect and Skyline Project
are included in the Company's Technical Report with an effective date of September 14, 2022
1
.
Information on historical and recent prospecting, mining, and exploration activities at the Skyline Project
and Dora prospect and other prospective areas contained within this news release has been reviewed
and verified by the Qualified Person.
Historical and recent data is considered sufficiently consistent
between generations of past explorers, and sufficiently consistent with recent results, to provide
confidence that compiled and reviewed assay results are indicative of the tenor of the samples. In the
opinion of the Qualified Person, sufficient verification of the data has been undertaken to provide
sufficient confidence that past exploration programs were performed to adequate industry standards and
the data reported is fit for substantiating the prospectivity of the project in general, supporting the
geological model/s proposed, planning exploration programs, and identifying/generating targets for
further investigation.
CopperCorp's diamond core drill holes are drilled at HQ and NQ core diameters using triple tube to
maximize recovery. Core recovery is generally good in mineralized zones (95-100%) with poorer
recoveries associated with brittle faulting on zone margins. Sample collection is supervised by
CopperCorp geological staff. Mineralized zones are marked up for sampling by an experienced
geologist. Half core is split by diamond saw on nominal 1.0m sample lengths while respecting geological
contacts. Samples are bagged and ticketed prior to delivery by Company personnel to the ALS
commercial laboratories in Burnie, Tasmania, for sample preparation. The half core samples are
crushed to 80% passing 2mm, riffle split to 500g and then pulverized to pass 75um. Coarse duplicate
sampling is conducted every 20 samples to assess variability of the coarse crush. Cu and multi-element
assay is by 4-acid digest followed by ICP-MS at ALS laboratories by method ME-ICP61a. Au assay is
by 30g fire assay at ALS laboratories by method Au-AA25. Certified reference materials (CRMs), blank
and duplicate QAQC samples are included in sample submissions at 20 sample intervals. All QAQC
samples were within acceptable limits (2 standard deviations for CRMs, duplicates <5%).
Mineralized Interval Calculations
Reported significant mineralized intervals in this news release are calculated as down-hole length-
weighted intercepts using a 0.1% Cu lower cut-off grade and generally carry a maximum internal dilution
of 4m. No top-cut grade was applied. True widths of drill hole intercepts are yet to be determined;
however, it is estimated that true widths are in the range of 70% to 95% of reported intervals.
Qualified Person
The Company's disclosure of technical or scientific information related to the Skyline Project and the
Dora prospect in this news release was reviewed and approved by Sean Westbrook, VP Exploration for
the Company. Mr. Westbrook is a Qualified Person as defined in National Instrument 43-101. This news
release also contains information about adjacent properties on which the Company does not have an
interest. Information sources regarding the adjacent properties are listed in the References section of
this news release. The QP has been unable to verify the information on these adjacent properties and
the information is not necessarily indicative to the mineralization on the properties that is the subject of
this news release.
References
1
Independent Technical Report on EL16/2018 Walford Peak (Skyline Project), Tasmania, Australia.
Prepared in accordance with Canadian National
Instrument 43-101 Standards of Disclosure for Mineral Properties (NI 43-101).
Effective date September 14, 2022 (CPER TSXV News Release
September 21, 2022).
2
CPER: TSXV News Release 21
st
February 2023.
3
CPER: TSXV News Release 6
th
June 2023.