Mine detail: Unnamed (near Tsirku Glacier )

Previously called ''

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Location

Lat / long: 59.31974, -136.45213

Resource(M)

Primary: Lead, Copper, Gold, Silver, Zinc
Ore: Chalcopyrite, Galena, Pyrite, Pyrrhotite, Sphalerite
Gangue: Calcite, Quartz

Production

Operation type: Unknown
Development status: Occurrence

Geology

Host rock:Porcupine Slate;Porcupine Slate
Host type:Slate
Associated type:Andesite
Alteration processes:Altered volcanics are mentioned but not described (Still and others, 1984).

References

MRDSA013099
DEP10002199
Reference{Deposit:: MacKevett, E.M., Jr., Robertson, E.C., and Winkler, G.R., 1974, Geology of the Skagway B-3 and B-4 quadrangles, southern Alaska: U.S. Geological Survey Professional Paper 832, 33 p.}{Deposit:: Berg, H.C., 1984, Regional geologic summary, metallogenesis, and mineral resources of southeastern Alaska: U.S. Geological Survey Open-file Report 84-572, 298 p., 1 plate, scale approx. 1:600,000.}{Deposit:: Still, J.C., 1984, Stratiform massive sulfide deposits in the Mt. Henry Clay area, southeast Alaska: U.S. Bureau of Mines Open-File Report 118-84, 65 p.}{Deposit:: Still, J.C., Weir, K.R., Gilbert, W.G., and Redman, E.C., 1984, Stream-sediment, float, and bedrock sampling in the Porcupine mining area, southeast Alaska: U.S. Bureau of Mines Open-File Report 173-84, 19 p.}
ReporterT.C. Crafford