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Moffet Point Occurrence, Alaska Peninsula District, Aleutians East Borough, Alaska, USA

Latitude: 55°29'30"N
Longitude: 162°28'58"W
Location: Beach and dune sands near Moffet Point. Coordinates are for beach between localities of the two richest samples.
Geology: Peninsula is covered by sand dunes as much as 100 ft. (30 m) high; the outer beach is broad and smooth. Wind sorting has resulted in erratically distributed magnetite stringers throughout area. Beach and dune sands are derived from glacial deposits and erosion of a largely volcanic terrain. The sands contain local concentrations of titaniferous magnetite.
Workings: Concentrates from 16 auger holes and shovel samples of beach matierial (with one exception) contained 10 percent or more titaniferous magnetite; most also contained traces of franklinite. Two samples contained more than 100 lbs iron (45 kg) and 25 lbs TiO2 (11 kg) per cubic yard (0.84 cubic m) of material in place. All others were much lower grade.

Commodities (Major) - Fe, Ti
Development Status: No
Deposit Model: Shoreline placer titanium

References

Berryhill, R.V., 1963, Reconnaissance of beach sands, Bristol Bay, Alaska: U.S. Bureau of Mines Report of Investigations 6214, 48 p. Cobb, E.H., 1972, Metallic mineral resources map of the Cold Bay quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-441, 1 sheet, scale 1:250,000. Cobb, E.H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p. Cobb, E.H., 1980, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in fifteen quadrangles in southwestern and west-central Alaska: U.S. Geological Survey Open-File Report 80-909, 103 p. MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.

Mineral List

Franklinite
Magnetite


2 entries listed. 2 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in Alaska, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 26th Jun 2011 21:40:11
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