Unnamed (northeast of the head of Quartz Creek)

The Unnamed (northeast of the head of Quartz Creek) is a gold mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

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Site Name

Primary: Unnamed (northeast of the head of Quartz Creek)

Commodity

Primary: Gold
Secondary: Lead
Secondary: Zinc
Secondary: Silver

Location

State: Alaska
District: Chistochina

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Silicification; formation of silica-carbonate rock in intermediate volcanics; local sulfidation.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Sphalerite
Ore: Pyrite
Ore: Gold
Ore: Galena
Gangue: Quartz

Comments

Comment (Commodity): Gangue = Carbonate minerals

Comment (Geology): Age = Possibly related to a nearby Jurassic diorite intrusion.

Comment (Exploration): Status = Inactive

Comment (Deposit): Other Comments = Additional information can be obtained from Ahtna Minerals in Anchorage, Alaska.

Comment (Deposit): Model Name = Gold porphyry

Comment (Reference): Primary Reference = WGM Inc., 1980, and Bull, Freeman and Schneider, 1999

Comment (Workings): Workings / Exploration = Only reconnaissance mapping and sampling of natural exposures.

Comment (Geology): Geologic Description = The country rocks are mainly Pennsylvanian to Permian volcanic rocks with lesser sedimentary rocks (Richter, 1966; Richter and Matson, 1968). They have been silicified, converted to silica-carbonate rocks, and locally sulfidized along a east-northeast to northeast trending zone more than one mile long (WGM Inc., 1980). A soil sample collected in approximately the center of the zone contained more than 500 ppb gold. Rock samples collected from the altered zone locally contained more than 2,000 ppb gold, 20 ppm silver, and 5,000 ppm lead and zinc (Bull, Freeman, and Schneider, 1999).

References

Reference (Deposit): Richter, D.H., and Matson, N.A., 1968, Distribution of gold and some base metals in the Slana area, eastern Alaska Range, Alaska: U.S. Geological Survey Circular 593, 20 p.

Reference (Deposit): WGM Inc., 1980, 1979 Summary report of gold potential, Slana District, Ahtna project: WGM Inc., 10 p., 1:63,360-scale map. (Report held by Ahtna Mineral Co., Anchorage, Alaska).

Reference (Deposit): Bull, Katharine, Freeman, Larry, and Schneider, Craig, 1999, Slana property summary report for Homestake Mining Company: 11 p. and analytical appendices. (Report available, Ahtna Minerals Co., Anchorage, Alaska).

Reference (Deposit): Richter, D.H., 1966, Geology of the Slana district on south-central Alaska: Alaska Division of Geological and Geophysical Surveys Geological Report 2l, 36b p., 3 sheets, scale 1:63,360.

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