Unnamed (near Hassler Harbor)

The Unnamed (near Hassler Harbor) is a copper 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

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Unnamed (near Hassler Harbor)

Commodity

Primary: Copper

Location

State: Alaska
District: Ketchikan

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: Trondhjemite hostrock is sericitized.

Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Silurian

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Silurian

Analytical Data

Not available

Materials

Ore: Chalcopyrite

Comments

Comment (Geology): Geologic Description = The country rock at this site is Silurian trondhjemite that was regionally metamorphosed to greenschist grade in Late Cretacous time (Berg, 1972). The occurrence consists of chalcopyrite sparsely disseminated in sheared and sericitized trondhjemite (Berg, 1972, loc. 11).

Comment (Reference): Primary Reference = Berg, 1972 (I 684)

Comment (Deposit): Model Name = Disseminated sulfide deposit in trondhjemite.

References

Reference (Deposit): Berg, H.C., 1972, Geologic map of Annette Island, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-684, 8 p., 1 sheet, scale 1:63,360,

Reference (Deposit): Karl, S.M., 1992, Map and table of mineral deposits on Annette Island, Alaska: U.S. Geological Survey Open-File Report 92-690, 57 p., 1 map, scale 1:63,360.

Reference (Deposit): Elliott, R.L., Berg, H.C., and Karl, Susan, 1978, map and table describing metalliferous and selected nonmetalliferous mineral deposits, Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-file Report, 78-73-B,17 p., scale 1:250,000.

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.