Amarc Introduces The JO Porphyry Copper-Gold Discovery In The Duke District - Seite 2
Nicolson further added that the Amarc team, having achieved all objectives of the nine hole winter drilling program at the DUKE Deposit and DUKE Target, has safely demobilized ahead of breakup. As results are received and assessed they will be timely released.
JO Target Discovery
Prior to Amarc's 2023 District wide exploration programs, no mineral occurrences were identified in the area of the JO Target and this discovery highlights the effectiveness of the survey work. Notably JO is located approximately 6 km to the northwest of Amarc's SVEA Deposit Target and 36 km to the northwest of its DUKE Deposit (Figure 1). JO shares similar attributes with Amarc's DUKE Deposit and SVEA Deposit Target, and also the known Babine Cu-Au deposits, being characterized by:
- An association with regional scale faults that exert a common control on the distribution of porphyry Cu-Au in the Babine is likely present.
- The distribution of silver in reconnaissance soil samples suggests that the Cu-Au mineralized BFP lies close to a north-northwest striking deformation zone.
- An association with a substantial 3 km2 Induced Polarization ("IP") chargeability anomaly (+15 mV/V) identifying a potential sulphide mineralized system (Figure 2).
- Within this IP chargeability anomaly, a strong 1 km oval-shaped lobe of higher chargeability (+20 mV/V) located toward the east hosts a rare occurrence of BFP in the target area, which is covered by extensive glacial till. This occurrence is also located on the eastern flanks of a magnetic high.
- This BFP occurrence can be correlated with other BFP-related porphyry Cu-Au deposits in the Babine through its presumed Eocene age, alteration style and association with regional scale structural controls.
- The BFP occurrence hosts well developed porphyry-style potassic alteration characterized by both secondary biotite and orthoclase, with disseminated chalcopyrite. The discovery composite rock sample, comprised of five to six chips from a number of mineralized angular boulders on top of an outcrop, returned 0.18% Cu, 0.52 g/t Au, 16.05 g/t Ag and 55 ppm Mo.
- A second strong IP chargeability high lobe with similar dimensions and magnetic anomalies is located some 1,500 m to the west of the above. This area also has extensive surficial cover and a bedrock source has not yet been identified.
- Due to the extensive glacial cover, LiDAR[1] survey data is currently being used to interpret grid soil geochemical data.
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This combination of geological data suggests good potential for additional porphyry Cu-Au mineralization to be identified with drilling through the extensive cover. It is Amarc's intent to drill test this and several other compelling targets during the summer 2024 drill season.