Mine detail: Jumbo (near Texas Creek)

Previously called ''

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Location

Lat / long: 56.05283, -130.2087

Resource(M)

Primary: Copper, Lead, Zinc
Ore: Chalcopyrite, Galena, Pyrite, Sphalerite
Gangue: Quartz

Production

Operation type: Unknown
Development status: Occurrence

Geology

Host type:Siltstone
Associated rock:Texas Creek
Associated type:Diorite
Alteration processes:Graywacke wallrock adjacent to quartz veins is impregnated with sulfide minerals.

References

MRDSA010242
DEP10000205
Reference{Deposit:: Buddington, A.F., 1929, Geology of Hyder and vicinity, southeastern Alaska, with a reconnaissance of Chickamin River: U.S. Geological Survey Bulletin 807, 124 p.}{Deposit:: Smith, J.G., 1977, Geology of the Ketchikan D-1 and Bradfield Canal A-1 quadrangles, Alaska: U.S. Geological Survey Bulletin 1425, 49 p.}{Deposit:: Elliott, R.L., and Koch, R.D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360.}{Deposit:: Koch, R.D., 1996, Reconnaissance geologic map of the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-A, 35 p., 1 sheet, scale 1:250,000.}
ReporterH. C. Berg