Bonita Creek

Prospect, Probably inactive

Commodities and mineralogy

Main commodities Au; W
Ore minerals gold; scheelite

Geographic location

Quadrangle map, 1:250,000-scale NM
Quadrangle map, 1:63,360-scale C-1
Latitude 64.6362
Longitude -165.2009
Nearby scientific data Find additional scientific data near this location
Location and accuracy This alluvial placer prospect is on Bonita Creek, a west headwater tributary to Osborn Creek (NM305). Bonita Creek joins New Eldorado Creek to form Osborn Creek. Thirty-five claims were located here in 1967 (Kardex site Kx 52-285 for gold and scheelite (?), Heiner and Porter, 1972; Alaska Division of Geological and Geophysical Surveys, 1982). The map location is at a surface elevation of about 475 feet, just inside the east-central edge of section 11, T. 10 S., R. 33 W., Kateel River Meridian. It is approximately located to within 1 mile.

Geologic setting

Geologic description

Placer mining claims were staked on Bonita Creek in 1967. Hudson and DeYoung (1978) reported a resource estimate of 1.1 to 1.5 million cubic meters pf placer ground containing 1 to 2 grams of gold and 190 grams of tungsten per cubic meter. The tungsten values are inferred to reflect the presence of placer scheelite. Bonita Creek drains an area where marble and schist bedrock is cut by high-angle faults including the eastward extension of the Anvil fault (Hummel, 1962 [MF 247]).
Geologic map unit (-165.203511988745, 64.6354405021652)
Mineral deposit model Alluvial placer Au and scheelite? deposit (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Prospecting had taken place on Bonita Creek, but no workings are known; 35 claims were recorded in 1967 (Heiner and Porter, 1972).
Indication of production None
Reserve estimates Hudson and DeYoung (1978, p. 45) reported an estimated resource of 1.1 to 1.5 million cubic meters of placer ground containing 1 to 2 grams of gold and 190 grams of tungsten per cubic meter.

References