Chargeability (Red), Resistivity (Yellow), Magnetic Low (Blue)
Recent, comprehensive geophysical surveys revealed multiple previously unrecognized magnetic and induced polarization (IP) anomalies previously unknown at the time of the 1988 drill program
2023 airborne survey outlined magnetic low (blue) and suspected hydrothermal alteration zone within a broader ~5km magnetic high belt
2020 IPsurvey identified robust chargeability anomaly (red) exceeding 400 m in strike length beneath Original-Diane and South zones and remains open to the southwest
Highly-mineralized Au-Ag-Cu zone with surface sampling highlights reaching 27.19% Cu, 56.71 gpt Au
Location of the 1988 9-hole shallow drill program that delivered encouraging Copper & Gold intercepts
The 1988 drill program intersected fractured, mineralized zones characterized by quartz and silicified volcanics, with widespread limonite boxwork and patchy pyrite overprinting chloritic volcanics containing specular hematite1
North Valley interprets these veins as potentially forming within the lithocap of an underlying mineralized porphyry system
~200m South of the Original Diane target
Further extension of IP chargeability anomaly
Never drill tested
Historic trench sampling returned encouraging copper grades of 0.45% Cu over 2 m and 0.20% Cu over 7 m2
Surface sample from trenching at South Zone:
Magnetic Low Extending Across Original-Diane, South, Victoria, STG Zones
1988 historic drill collar locations at the Original-Diane zone with underlying IP geophysical survey completed in 2020. Modern geophysical data outlines a significant chargeability anomaly exists below historic drilling that remains open to the southwest and southeast. The Lowell zone and Victoria Adit occur along the edges of a magnetic anomaly, which may correspond to the intrusion that drove mineralization.
Cross-section demonstrates the close relationship between mineralization and elevated chargeability. It is interpreted that the 1988 historic drilling may have intersected the outer propylitic/phyllic zone of an underlying porphyry system. The higher chargeability may be outlining the core of a porphyry system and represents a compelling, near-surface target for future drill programs.
*See Photo Gallery For Additional Examples of Surafce Mineralization
*Sources
1. Nelles, D.M. - Diamond Drilling Report on the Stirling Group (Diane 1-5 Mineral Claims) for Abermin Corporation. July 20, 1988. AR 17721.
2. Cavey, G. et al. 1986. Report on Detailed Geological, Geochemical, and Geophysical Surveys for International Maple Leaf Resource Corporation on the Stirling Group (Diane 1-5 Mineral Claims). BC Geological Survey Assessment Report 16058.
Historical drilling, rock sampling, and chip sampling results are historical in nature and have not been verified by a Qualified Person; therefore, they should not be unduly relied upon.