Mine detail: Horsfeld

Previously called ''

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Location

Lat / long:

62.04777, -141.21637

Resource(M)

Primary:	Copper
Ore:	Chalcopyrite, Pyrite
Gangue:	Quartz

Production

Operation type:	Unknown
Development status:	Prospect

Geology

Host rock:	Klein Creek Batholith;Klein Creek Batholith
Host type:	Diorite
Associated rock:	Klein Creek Batholith;
Associated type:	Diorite
Alteration processes:	Argillic, propylitic. Central altered zone 200 m by 700 m characterized by K-feldspar, actinolite and magnetite.

References

MRDS	A011422
DEP	10000779
Reference	{Deposit:: Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, scale 1:250,000.}{Deposit:: Richter, D.H., Matson, N.A., Jr., and Smoll, H.R., 1973, Reconnaissance geologic map of the Nabesna A-1 quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map 1-807, scale 1:63,360.}{Deposit:: Hollister, V.F., Anzalone, S.A., and Richter, D.H., 1975, Porphyry copper belts of southern Alaska and contiguous Yukon Territory: CIM (Canadian Mining and Metallurgical) Bulletin, v. 68, no. 756, p. 104-112.}
Reporter	Nokleberg, W.J., W.J.; Richter, D.H., Elliott, R.L., Leonard, K.R.