La Tendre

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale A-7
Latitude 61.0363
Longitude -143.4
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is on the west side of the peak between upper Golconda Creek and the headwater cirque of Pocket Creek. It is at an elevation of about 6,500 feet, about 3,700 feet northwest of peak 7020. The site is in the NE1/4 of section 2, T. 10 S., R. 11 E. of the Copper River Meridian. This is locality 11 of MacKevett (1976) and it is probably accurate to within 1,000 feet. Cobb and MacKevett (1980) included this prospect under the name 'Le Tendre'.

Geologic setting

Geologic description

Gold-bearing quartz is reported to occur in a brecciated fault zone that cuts metaflysch of the Cretaceous Valdez Group (MacKevett, 1976). Some rich gold-bearing quartz specimens were obtained from this deposit (Moffit, 1937). Gold-bearing quartz veins in the Valdez Group are generally Early Tertiary in age (Goldfarb and others, 1997).
Geologic map unit (-143.402038034905, 61.0358426888554)
Mineral deposit model Low sulfide Au-quartz vein (Cox and Singer, 1986; model 36a)
Mineral deposit model number 36a
Age of mineralization Early Tertiary. Gold-bearing quartz veins in the Valdez Group are generally Early Tertiary in age (Goldfarb and others, 1997).
Alteration of deposit Silicification.

Production and reserves

Workings or exploration The deposit is extensively covered by surface rubble (MacKevett, 1976).
Indication of production Undetermined

Additional comments

The locality is in the Wrangell-Saint Elias National Park and Preserve.

References