CopperCorp Samples 31.0m at 1.48% Cu & 0.83 g/t Au at Jukes Prospect, Significant Scale Potential Identified
CopperCorp Resources Inc. has confirmed high-grade copper-gold potential at the Jukes Cu-Au prospect in Tasmania. Results from historical underground sampling show significant mineralization with high-grade intervals. The magnetic data indicates potential for a large-scale mineralization system. The company has received permitting approvals for an initial drill program and is set to commence drilling at the high-grade Jukes prospect.
Confirmation of high-grade copper-gold potential at the Jukes Cu-Au prospect.
Significant mineralization with high-grade intervals from historical underground sampling.
Potential for a large-scale mineralization system indicated by magnetic data.
Permitting approvals received for an initial drill program at the high-grade Jukes prospect.
- None.
Vancouver, British Columbia--(Newsfile Corp. - May 13, 2024) - CopperCorp Resources Inc. (TSXV: CPER) (OTCQB: CPCPF) ("CopperCorp" or the "Company") is pleased to provide results of channel and rock chip sampling at the Jukes Cu-Au prospect, Razorback license in western Tasmania, Australia. Channel sampling in an early 20th Century mine adit by CPER, with intersections of up to 9.0m @
HIGHLIGHTS
- Assay results received from sampling of historical underground adits have confirmed high-grade copper-gold potential at the Jukes prospect, including significant intervals:
| Mineralized Zone | Interval (m)* | Cu (%) | Au (g/t) | Ag (g/t) | From (m) |
| J3West Zone | 31.0 | 1.48 | 0.83 | 5.21 | 8 |
| including | 9.0 | 2.92 | 1.79 | 10.17 | 8 |
| J3East Zone | 26.0 | 0.65 | 0.67 | 2.60 | 72 |
- *Intervals are along-channel sample widths. True widths are not known at this time.
Results from 14 outcrop rock chip samples taken along the interpreted strike of the underground sampled mineralization include individual assays up to
46.6% Cu and 9.54g/t Au.Modelling of magnetic data suggests a magnetic pipe feature associated with the Jukes Cu-Au system extends up to 700m along strike and up to 1,400m below surface, indicating potential for the mineralization system to have significant scale. The magnetic pipe is untested by drilling.
Mineralization and alteration styles identified at Jukes, as well as the copper and gold mineral tenor are consistent with the large Mt Lyell Cu-Au system (311Mt @
0.97% Cu and 0.31g/t Au) located 10km to the north of Jukes. The gold:copper ratio at Jukes is typically 3-4 times that of the Mt Lyell orebodies.Environmental surveys completed and initial drill program permitting approvals received.
Stephen Swatton, President and CEO of CopperCorp, commented: "The Jukes prospect is a compelling high-grade copper-gold drill target close to surface and approximately 10km south and along trend from the famous historical Mt Lyell Cu-Au mining camp. The Mt Lyell mine licenses are currently the subject of a feasibility study by Sibanye Stillwater Ltd. who report that resources of at least 1 million tonnes copper and 1 million ounces gold are still present at the site.
CopperCorp's high grade, near surface mineralization at the Jukes no.3 adit, combined with a geophysical magnetic feature that extends to about 1,400 metres below surface has developed into a convincing target that has not been drill tested since a limited program undertaken some 40 years ago. The Mt Lyell camp is interpreted as a cluster of deposits (Figures 1 and 2) with porphyry/epithermal style affinities at the upper levels of an IOCG system. Jukes is interpreted by CPER as a probable deeper extension of the same rock suite. In addition to Jukes, at least 6 other nearby prospects (Figure 3) on
In summary the excellent work by CPER geologists has defined a 'walk up' copper-gold drill target at Jukes and preliminary work on other zones definitely shows that the mineralization across the Razorback license has the potential to be of a district wide scale.
In late April the Company received permission to commence drilling Jukes with helicopter support, however, as we approach the Tasmanian winter, we have also sought permission to construct vehicle access to the initial proposed drill pads to enable year-round uninterrupted exploration."
Figure 1. - Location of the Jukes and Darwin prospects relative to the historical Mt Lyell copper-gold mine - Blue outline is CopperCorp's
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Figure 2. - Long section through the Mt Lyell copper-gold camp looking east. After New Century Resources 23 Jan 2023 ASX announcement and Sibanye Stillwater website presentation material May 2024.
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Jukes Adit Sampling
Assay results from a combined 158m of continuous channel sampling of historical underground workings at the Jukes prospect have been received. The sampling was carried out along wall rocks of the Jukes No. 3 main adit and associated crosscuts which intersect two separate mineralized zones - the Jukes No. 3 West (J3West) zone and the Jukes No. 3 East (J3East) zone (Figure 4). Significant mineralized intervals from the recent adit sampling are listed in Table 1. These results confirm the high-grade tenure of copper and gold grades previously reported from drilling and underground sampling at the prospect (see Tables 4 and 5).
| Mineralized Zone / Section | Interval (m)* | Cu (%) | Au (g/t) | Ag (g/t) | From (m) |
| J3West Zone: | |||||
| Jukes No. 3 Main Adit | 43.0 | 1.1 | 0.62 | 3.98 | 8.0 |
| Including | 31.0 | 1.48 | 0.83 | 5.21 | 8.0 |
| including | 9.0 | 2.92 | 1.79 | 10.17 | 8.0 |
| Jukes No. 3 West Crosscut | 11.0 | 1.28 | 0.73 | 3.94 | 2.0 |
| including | 4.0 | 1.84 | 1.26 | 6.39 | 9.0 |
| Jukes No. 3 Hanging wall Drive (unmineralized hanging wall side) | 3.0 | 0.5 | 0.52 | 3.03 | 17.0 |
| J3East Zone: | |||||
| Jukes No. 3 Main Adit | 26.0 | 0.65 | 0.67 | 2.60 | 72 |
Table 1. Significant mineralized intervals, channel sampling - Jukes No. 3 Adit (CopperCorp sampling).
*Intervals are along-channel sample widths. True widths are not known at this time.
The historical adit and associated crosscuts intersect the mineralized zones at various angles and over variable lengths; true widths of the mineralized zones are not known at this stage. Based on predominant NNW-trending, steeply dipping orientation of the mineralized zones, J3West is interpreted to be 30-40m wide, and J3East zone is interpreted to be 15-20m wide in the area of sampling.
Primary copper-gold mineralization at the Jukes prospect occurs predominantly as chalcopyrite and lesser bornite, commonly associated with magnetite and pyrite. High-grade mineralization is developed in strongly foliated to schistose, intensely chlorite altered host rocks (Figure 7). Secondary supergene mineralization is variably developed near surface, comprising chalcocite, malachite, cuprite, digenite and native copper (Figure 8).
Jukes Surface Sampling
Assays results have also been received for 14 rock chip samples taken during reconnaissance mapping in the Jukes prospect area (Table 2). Most of the rock chip samples were taken from mineralized zones outcropping along the interpreted strike of the J3West and parallel mineralized zones sampled in the historical adits. Results indicate that the Cu-Au mineralized trend extends north for at least up to 270m along strike (open) from the Jukes No.3 Adit sampling with
| Sample ID | Cu (%) | Au (g/t) | Ag (g/t) |
| 56801 | 0.13 | 0.04 | 0.52 |
| 56802 | 0.10 | 0.01 | 0.35 |
| 56803 | 0.10 | 0.09 | 0.98 |
| 56804 | 0.20 | 0.06 | 2.99 |
| 56805 | 46.6 | 5.96 | 59.4 |
| 56806 | 0.31 | 0.28 | 5.72 |
| 56807 | 7.87 | 0.03 | 1.48 |
| 56808 | 26.3 | 9.54 | 117 |
| 56925 | 2.58 | 0.09 | 17.1 |
| 56926 | 0.35 | 0.06 | 3.44 |
| 56927 | 0.07 | 0.77 | 0.79 |
| 56928 | 1.39 | 0.08 | 9.56 |
| 56929 | 1.64 | 0.21 | 24 |
| 56930 | 0.07 | 0.03 | 1.33 |
Table 2. Anomalous assay results from rock chip grab sampling, Jukes prospect.
| Sample ID | Easting | Northing | Description |
| 56801 | 383729 | 5331259 | K-felspar-magnetite-chlorite altered volcaniclastic |
| 56802 | 383720 | 5331258 | K-felspar-magnetite-chlorite altered volcaniclastic |
| 56803 | 383658 | 5331291 | K-felspar-magnetite-chlorite altered volcaniclastic, sparse quartz vein with minor chalcopyrite |
| 56804 | 383655 | 5331292 | K-felspar-magnetite-chlorite altered volcaniclastic, magnetite veinlets and breccia, disseminated pyrite-chalcopyrite |
| 56805 | 383559 | 5331343 | Chalcocite-bornite-malachite veins in approximately 1m wide fault zone |
| 56806 | 383584 | 5331325 | K-felspar-magnetite-chlorite altered volcaniclastic, disseminated chalcopyrite-pyrite |
| 56807 | 383591 | 5331323 | Chlorite-sericite altered fine grain volcaniclastic with supergene cuprite-malachite-native copper veins |
| 56808 | 383559 | 5331341 | Chalcocite-bornite-malachite veins in approximately 1m wide fault zone |
| 56925 | 383528 | 5331376 | K-felspar-magnetite-chlorite altered volcaniclastic with malachite and chalcopyrite |
| 56926 | 383528 | 5331377 | Silica altered coherent dacite with vain and disseminated chalcopyrite-bornite |
| 56927 | 383527 | 5331380 | Weathered semi-massive magnetite-hematite-pyrite |
| 56928 | 383396 | 5331403 | Silica-chlorite altered dacite porphyry, disseminated and vein pyrite-chalcopyrite |
| 56929 | 383395 | 5331403 | Silica-chlorite altered dacite porphyry, disseminated and vein pyrite-chalcopyrite |
| 56930 | 383396 | 5331491 | Chlorite-magnetite altered volcaniclastic, trace disseminated pyrite-chalcopyrite |
Table 3. Surface outcrop rock chip sample location details, Jukes prospect. Datum: GDA94 Zone 55.
Jukes Geophysical Modelling
CopperCorp engaged Australian-based independent geophysical consultants, Resource Potentials Pty Ltd., to carry out magnetic and gravity data compilation, processing and 3D inversion modelling using available open file regional and historical exploration geophysical data.
Results of 3D inversion modelling show the Jukes prospect is defined by an elongate pipe-like magnetic high feature with the core of the pipe extending up to 700m in a N-S direction, and up to 1.4km vertically below outcropping mineralization at surface (See Figure 5). The magnetic high (or core) is coincident with the magnetite bearing Cu-Au mineralization sampled at surface and an enveloping zone of k-feldspar-magnetite-pyrite alteration. The magnetic pipe is confined to the footwall (north) of the NE-trending, steeply SE dipping Jukes Fault, also consistent with the position of mineralization. It is untested by drilling.
Previous Work and proposed work going forward in 2024
Historical (1970's and 1980's) drilling at Jukes was designed to test an early geological model that involved mineralization being confined to the immediate footwall zone of the Jukes fault and has not tested the potential of the interpreted larger NNW-trending mineralization system and structurally controlled high-grade shoots now recognized by CopperCorp. It is interpreted that most historical exploration drilling was focused on the southern edge of the larger mineralized system.
CopperCorp recently received Government approval for a proposed initial 1000m diamond drill program at Jukes. The Company has also applied for road access and is awaiting confirmation of this more cost-effective and convenient option. Proposed drilling in 2024 will target depth and strike extensions to the sampled high-grade mineralization.
About The Jukes Prospect
At the Jukes prospect, located 10km south of the Mt Lyell copper mine, historical prospecting and small-scale mining during the late 1890's to early 1900's was carried out on high-grade copper-gold magnetite-sulphide mineralization with several exploration adits and shafts developed throughout the prospect area. The small-scale mining was not extensive and was mostly ceased by 1903 when nearby smelters closed.
Drilling below historical workings at Jukes in the 1970's and 1980's gave a best intercept of 13.4m @
| Drillhole ID | Interval (m)* | Cu (%) | Au (g/t) | Ag (g/t) | From (m) |
| JP1 | 4.0 | 0.41 | <0.01 | 1.0 | 100.0 |
| JP2 | 13.4 | 1.60 | 1.60 | 5.3 | 61.6 |
| JP2 | 18.3 (to EOH) | 0.18 | NA | NA | 140.0 |
| JP3 | 20.0 | 0.52 | 0.06 | 2.0 | 214.0 |
| JP3 | 1.0 | 2.45 | 0.01 | 10.0 | 252.0 |
| JP3 | 2.0 | 1.48 | <0.01 | 2.5 | 266 |
| JP3 | 32.0 | 0.28 | 0.06 | 1.0 | 273 |
| JP4 | 25.0 | 0.28 | 0.06 | 0.7 | 191.5 |
| Z142003 | 6.0 | 0.59 | <0.05 | 2.7 | 139.2 |
Table 4. Historical drill hole significant mineralized interval, Jukes prospect.
| Mineralized Zone / Section | Interval (m)* | Cu (%) | Au (g/t) | Ag (g/t) | From (m) |
| J3West Zone: | |||||
| Jukes No. 1 Main Adit | 9.0 | 1.84 | 0.80 | 3.3 | 0.0 |
| Jukes No. 2 Main Adit | 12.0 | 0.63 | 0.3 | 0.6 | 152.0 |
| including | 2.0 | 2.4 | 1.7 | 35.0 | 158 |
| Jukes No. 2 Main Adit | 6.0 | 0.58 | 1.6 | 7.3 | 172.0 |
| Jukes No. 2 SE Crosscut | 20.0 | 0.98 | 0.4 | 8.7 | 2.0 |
| Jukes No.3 HW Drive (mineralized footwall side) | 23.4 | 1.39 | 1.03 | 3.5 | 2.0 |
| King Jukes No.1 (K1North) Zone: | |||||
| King Jukes No.1 Main Adit | 58.0 | 0.74 | 0.39 | 6.8 | 0.0 |
| including | 18.0 | 1.34 | 1.09 | 11.4 | 16.0 |
| King Jukes No.1 E Crosscut | 4.0 | 0.33 | 0.2 | 3.0 | 0.0 |
| King Jukes No.1 W Crosscut | 10 | 0.60 | <0.1 | 2.8 | 2.0 |
| King Jukes No.2 Adit | 10 | 0.12 | 0.1 | 0.4 | 0.0 |
Table 5. Historical adit channel sampling significant mineralized intervals, Jukes prospect.
*Intervals are along-channel sample widths. True widths are not known at this time.
Surface mapping by CPER indicates the hydrothermal alteration system at Jukes is characterised by K-feldspar-magnetite alteration with extensive development of magnetite-apatite-pyrite stockwork veining to semi-massive mineralization broadly coincident with the modelled magnetic pipe feature. The most intensive magnetite-apatite-pyrite alteration is developed 400m north of the historical Jukes workings and all previous exploration drilling. Cu-Au mineralization is associated with an overprinting phase of intense chlorite-magnetite-sulphide alteration that shows close spatial association with NNW-trending fault structures and intersection of these structures with the NE-trending Jukes fault. A sericite-chlorite alteration zone occurs outbound of the inner mineralized K-feldspar-magnetite and chlorite-magnetite zones. Primary copper mineralization at Jukes occurs predominantly as chalcopyrite and lesser bornite, commonly associated with magnetite and lesser pyrite. The host rocks are dacitic volcaniclastic and lava units of the Mt Read Volcanics.
The style of mineralization and alteration and the copper and gold mineral tenor at the Jukes prospect is consistent with the deeper level orebodies of the nearby Cu-Au Mt Lyell system where the most productive style of mineralization occurs as subvertical pipe-like disseminated-stringer chalcopyrite-pyrite bodies associated with disseminated pyrite and chloritic-magnetite-apatite and minor potassic altered rocks. The Prince Lyell orebody (>100Mt) at Mt Lyell (Figure 2) is a subvertical pipe-like body with dimensions of approximately 450 x 150 m at surface and is vertically continuous for more than 1500m.
Other Ongoing CopperCorp Work Programs
South Darwin Drilling Update
A second drill hole, SDD008, is currently underway at the South Darwin REE and Cu-Au target. The drill hole depth is currently at 270m (May 12, 2024). The Results from drill hole SDD007 and extensive surface sampling at South Darwin have been received and are currently under review. An exploration update which will incorporate the results of SDD007, the ongoing drilling at SDD008 and surface sample analyses is currently being prepared. This report will be available once all drill results are received and we have a better understanding of the geology and possible genetic relationship to the Jukes and other prospects in the Razorback license.
The Company is also undertaking preliminary investigations into the potential ease or difficulty of REE extraction from the allanite-rich mineralization.
Figure 3. Exploration target areas, Razorback property.
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Figure 4. Jukes prospect summary plan with magnetics reduced to pole (RTP) image underlay.
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Figure 5. Jukes prospect 3D section (looking towards northeast) showing the 3D inversion model magnetic pipe feature underlying the prospect area.
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Figure 6. Jukes No.3 Adit historical underground working, Jukes prospect.
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Figure 7. Example of typical high-grade chalcopyrite-rich mineralization in foliated chlorite schist from the Jukes No.3 Adit historical underground workings, Jukes prospect.
