|Quadrangle map, 1:250,000-scale||CH|
|Quadrangle map, 1:63,360-scale||D-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The reference point for this prospect is at an elevation of about 2,000 feet near the east end of Reds Lake approximately 24 miles north of Chandalar (sec. 24, T. 34 N., R. 5 W., of the Fairbanks Meridian). Its location is somewhat speculative because it is derived from a sample collected around 1900. This occurrence is listed in several publications (Cobb, 1976, [OFR 76-340]; DeYoung, 1978; Cobb and Cruz, 1983) as some variant of Chandalar River, North Fork. The location is accurate within a 1-mile radius.|
Geologic descriptionThis prospect is described only as a sample of a quartz vein, collected prior to 1900, which assayed 0.42 oz Au and 0.14 oz Ag (Schrader, 1900). The country rock near this prospect is a relatively large outcrop area of albite-epidote-chlorite-muscovite greenschist (Brosgé and Reiser, 1964). This greenschist is in contact with a sliver of the Devonian(?) Horace Mountain pluton to the south and Devonian calcareous units to the north. Brosgé and Reiser (1972) included this occurrence in a group of anomalous stream-sediment and rock samples that show gold values and anomalous lead, zinc, copper, and silver. They imply an association between the above-described quartz vein sample and a sample of galena from a nearby prospect in limestone which returned values of 360 ppm Ag and 6.5 ppm Au. The location of the nearby prospect is not given.
|Geologic map unit||(-148.572764733528, 67.8396153567528)|
|Mineral deposit model||Polymetallic veins? (Cox and Singer, 1986; model 22c?).|
|Mineral deposit model number||22c?|
|Indication of production||None|
See also: Bob (CH089), Gayle (CH091), Bibban (CH090), and Steph (CH093) prospects, which are located a few miles northwest of this prospect, and an unnamed occurrence (CH084), located a few miles east.Alaska Kardex No. 031-27 (Kardex is a card file mining claim information system located at the State of Alaska DNR Public Information Center in Fairbanks).
Cobb, E.H., 1972, Metallic mineral resources map of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-457, 1 sheet, scale 1:250,000.
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Chandalar and Wiseman quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-340, 205 p.
DeYoung, J.H., Jr., 1978, Mineral resources map of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-878-B, 2 sheets, scale 1:250,000.
Grybeck, Donald, 1977, Known mineral deposits of the Brooks Range, Alaska: U.S. Geological Survey Open-File Report 77-166C, 45 p., 1 sheet, scale 1:1,000,000.
Maas, K.M., 1987, Maps summarizing land availability for mineral exploration and development in northern Alaska, 1986: U.S. Bureau of Mines Open-File Report 10-87, 33 quadrangle overlays.
|Reporters||J.M. Britton (Anchorage)|
|Last report date||11/17/1999|