|Quadrangle map, 1:250,000-scale||MC|
|Quadrangle map, 1:63,360-scale||A-7|
|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 descriptionGold-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.|
|Workings or exploration||The deposit is extensively covered by surface rubble (MacKevett, 1976).|
|Indication of production||Undetermined|
Additional commentsThe locality is in the Wrangell-Saint Elias National Park and Preserve.
Cobb, E.H., and MacKevett, E.M., Jr., 1980, Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the McCarthy quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-885, 156 p.
Goldfarb, R.J., Miller, L.D., Leach, D.L., and Snee, L.W, 1997, Gold deposits in metamorphic rocks in Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska: Economic Geology Monograph 9, p. 151-190.
MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, 2 sheets, scale 1:250,000.
|Reporters||Travis L. Hudson (Applied Geology, Inc.)|
|Last report date||1/12/2003|