Description
Peter Romanoff, Andrew Dixon, Bernard Hirst
Commodities
PrimaryGold
SecondarySilver
TertiaryLead, Zinc, Copper
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formLENS, RIBBON
Ore controlAlong Hirst Fault Zone
Materials
Ore mineralsChalcopyrite, Sphalerite
GanguePyrite, Quartz
Geology
Host rockSiltstone · Sitka Graywacke;
StructureHirst Fault Zone Trends N 28 Degrees W, Dips 72 Degrees Sw, Graywacke Bedding Strikes N 65 Degrees W, Dips 64 Degrees Sw
Tectonic settingChugach Terrain
Economic & production
Development statusProducer
First production1922
Last production1943
Discovery year1905
Identification
Deposit ID10002348
MRDS IDA013265
Alternate namesHirst-Chichagof Mining Co.-12 Patented Lode Claims
RegionNA
Data scoreB
Coordinates57.68471, -136.10592
References
USGS B 929, P. 60, 65-71, 78-81, 101-118, PLATES 1, 3, 18, 19 (1941)USGS MF-1476-B, P. 5, 6, LOC. 14 (1982)USGS OF 78-450, P. 58-61 (1978)USGS MF-467, LOC. 27 (1972)BAG-B-929-PL-1D1-G9: USGS B 929, P. 104. G10-G12: USGS MF-1476-B, P. 5. G13: NORTHERN MINER, 1986, V. 72, NO. 1, P. 12