Unnamed (west-northwest of Mt. Dagelet)

The Unnamed (west-northwest of Mt. Dagelet) is a titanium 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 (west-northwest of Mt. Dagelet)

Commodity

Primary: Titanium

Location

State: Alaska
District: Glacier Bay

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

Model Name: Bushveld Fe-Ti-V

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Ilmenite

Comments

Comment (Deposit): Other Comments = the site is in Glacier Bay National Park and Preserve.

Comment (Deposit): Model Name = Possibly Bushveld Fe-Ti-V (Cox and Singer, 1986; model 3). Magmatic segregation; ilmenite deposit in layered mafic-ultramafic intrusive.

Comment (Reference): Primary Reference = Rossman, 1963 (B 1121-F)

Comment (Workings): Workings / Exploration = There are no workings. Sample 53ARm a37 contained 25 percent ilmenite (Rossman, 1963, p. F43).

Comment (Geology): Geologic Description = This occurrence consists of ilmenite segregations in the Crillon-La Perouse layered mafic-ultramafic intrusion, along its southwestern contact zone (Brew and others, 1978). The adjacent metamorphic rocks are hornblende and biotite schist probably derived from a Mesozoic protolith. The intrusion is of Tertiary age.? An ilmenite magmatic segregation deposit exists at the site. It continues along strike of the layered intrusion for several hundred feet but could not be traced farther because of extremely steep topography. At the site, the intrusion is estimated to contain from 10 to 25 percent ilmenite (Rossman, 1963, 1121-F). A sample that contained 25 percent ilmenite contained 2 percent graphite by weight.

Comment (Reserve-Resource): Reserves = An inferred resource could be calculated based on data given by Rossman.

Comment (Exploration): Status = Inactive

Comment (Geology): Age = Tertiary.

References

Reference (Deposit): Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources, in Brew, D. A., and others, Mineral resources of the Glacier Bay National Monument wilderness study area, Alaska: U.S. Geological Survey Open-File Report 78-494, p. C1-C375.

Reference (Deposit): Rossman, Darwin, 1963, Geology and petrology of two stocks of layered gabbro in the Fairweather Range, Alaska: U.S. Geological Survey Bulletin 1121-F, p. F1-F50.

Reference (Deposit): Brew, D.A., Johnson, B.R., Grybeck, D., Griscom, A., Barnes, D.F., Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources of the Glacier Bay National Monument Wilderness Study Area, Alaska: U.S. Geological Survey Open-File Report 78-494, 670 p.

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