Unnamed

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale DP
Latitude 69.47
Longitude -142.82
Nearby scientific data Find additional scientific data near this location
Location and accuracy Accurate to within 1,524 meters (5,000 ft). Brosge' and Reiser, 1976, Locality 17 and Grybeck, 1977, p. 42, Locality 9.

Geologic setting

Geologic description

Chalcopyrite is present in quartz veins in mafic volcanic rocks.
These observations where likely made in rocks mapped as Precambrian volcaniclastic rocks of Redwacke Creek (Reiser and others, 1980). Potassium-argon dating of these rocks indicates Early Jurassic to Late Triassic ages which are not consistent with mapped field relations (Reiser and others, 1980).
Marker beds used in detailed mapping along the U.S.-Canada border consist of volcaniclastic rocks that are Ordovician or Cambrian in age and likely stratigraphically equivalent to the Whale Mountain volcanics that contain a Late Cambrian fauna in their basal part (Kelley and others, 1992). Although the age of the volcaniclastic rocks of Redwacke Creek is uncertain and presumed to be Precambrian by Reiser and others (1980), work by Lane and others (1995) and Kelley and others (1992) raises the possibility that the volcaniclastic rocks that have reported to be mineralized are Cambrian to Ordovician in age: if so, the mineralization in them is not akin to mineralization in Precambrian volcanics in the Sadlerochit and Shublik Mountains.
Geologic map unit (-142.822694025004, 69.4698145128126)
Mineral deposit model Mafic-hosted Cu.

Production and reserves

Indication of production None

References