Cache Creek - North

Occurrence, Inactive

Commodities and mineralogy

Main commodities Zn
Other commodities Pb
Ore minerals sphalerite
Gangue minerals carbonate solution breccia

Geographic location

Quadrangle map, 1:250,000-scale MD
Quadrangle map, 1:63,360-scale C-4
Latitude 63.57
Longitude -154.074
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Cache Creek North occurrence is a soil-rubble anomaly located at an elevation of 1,500 feet (457 m) in a stream basin of the South Fork of White Mountain Creek in Section 20, T. 22 S., R. 25 E., of the Kateel River Meridian. Location is known to within 250 feet (76 m).

Geologic setting

Geologic description

Mineralization only occurs as rubble-crop of the Silurian Paradise Fork Formation of Dutro and Patton (1982), which is also unit 'Sic' of Andrews and Rishel (1982). Cache Creek North is northern end of N 55 E striking unit of micritic limestone and white dolomite. The host rock is inferred to be Silurian based on fossil control (Dutro and Patton, 1982). A 3,000 foot-long (915 meter) soil anomaly contains up to 1.05 percent zinc and 450 ppm lead (Andrews and Rishel, 1982).
Geologic map unit (-154.076342102855, 63.5694130270162)
Mineral deposit model Southeast Missouri Pb-Zn (Cox and Singer, 1986; model 32a) or Mississippi Valley type (Cox and Singer, 1986; model 32b).
Mineral deposit model number 32a or 32b
Age of mineralization The host rock is inferred to be Silurian based on fossil control (Dutro and Patton, 1982). But, the age of the mineralization is unknown.
Alteration of deposit White dolomite replacement.

Production and reserves

Workings or exploration A 3,000 foot-long (915 m) soil anomaly contains up to 1.05 percent zinc and 450 ppm lead (Andrews and Rishel, 1982).
Indication of production None
Reserve estimates None.

Additional comments

See: Reef Ridge deposit (MD055) and Cache Creek South (MD038) Prospect. The Cache Creek - North occurrence is on lands selected or owned by Doyon Ltd. For further information, contact Doyon Ltd at 210 1st Ave., Fairbanks, Alaska, 99701.

References

MRDS Number 10307786

References

Andrews, Tom, and Rishel, John, 1982, Annual Report for 1981, Reef Ridge I-to-XIII Project Areas, Kuskokwim Block, Alaska: Anchorage, Alaska, WGM Inc., Project Report 4, 45 p., 2 sheets, scales 1:63,360 and 1:20,000. (Report held by Doyon, Limited, Fairbanks, Alaska.)
Reporters Bundtzen, T.K. (Pacific Rim Geological Consulting)
Last report date 6/2/1998