Mine detail: Old Smoky

Previously called ''

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Location

Lat / long: 65.50967, -148.52693

Resource(M)

Primary: Gold
Ore: Gold, Stibnite

Production

Operation type: Unknown
Development status: Prospect

Geology

Host type:Sandstone
Alteration processes:Most of the intrusive rocks and some of the sedimentary host rocks have experienced variable degrees of metasomatic hydrothermal alteration followed by lower temperature supergene alteration (Allegro, 1984, p. 4). Allegro (1984) described four types of hydrothermal alteration: 1) silicification, as partial to complete replacement of the host rock by a dense network of quartz veinlets generally localized along contacts between the intrusive and sedimentary rocks; 2) sericitization, as fine- to medium-grained white mica in selvages along quartz veins, as anastomosing sericite-opaque mineral veinlets, and as patchy to massive sericitic replacement of feldspar, ferromagnesium minerals and quartz; 3) deposition of trigonal nets of needle-like rutile often associated with secondary quartz and minor feldspar; and 4) epidote 1 sericite as a replacement of calcic plagioclase and ferromagnesian minerals resulting in massive aggregates, pseudomorphs, veins, and vug fillings of epidote commonly associated with sericite, opaque minerals, and quartz.

References

MRDSA015402
DEP10002912
Reference{Deposit:: Foster, R.L., 1968, Descriptions of the Ruth Creek, Lillian Creek, Griffin, Old Smoky, Sunshine No. 2, and Olive Creek lode prospects, Livengood District, Alaska: U.S. Geological Survey Open-File Report 68-104, 21 p.}{Deposit:: Cobb, E.H., 1972, Metallic mineral resources map of the Livengood quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 413, 2 sheets, scale 1:250,000.}{Deposit:: Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-633, 72 p.}{Deposit:: Allegro, G.L., 1984, Geology of the Old Smokey prospect, Livengood C-4 quadrangle: Alaska Division of Geological and Geophysical Surveys Report of Investigations 84-1, 10 p., 1 sheet, scale 1:120.}
ReporterC.J. Freeman, J.R. Guidetti Schaefer