| Deposit ID | 10000487 |
|---|---|
| MRDS ID | A010671 |
| Record type | Site |
| Current site name | Claim Point |
| Alternate or previous names | Reef |
| Related records | 10136895 |
| Geographic coordinates: | -151.82253, 59.20946 (WGS84) |
|---|---|
| Relative position | These chromite deposits occur on a small peninsula on the northern shore of Port Chatham in the SW1/4 of section 21, T. 11 S., R. 15 W., of the Seward Meridian. Most of the chromite lens and layers are found on the northeast side of the peninsula near the old mill and wharf. This is location 1 of Cobb (1972, MF-397) and is accurate to within half a mile. |
Political divisions (FIPS codes)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Seldovia A-5 NW(quadrangle 1:24,000 scale)
Seldovia SW(quadrangle 1:100,000 scale)
Seldovia C(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lower Kenai Peninsula(hydrologic unit)
Kenai Peninsula(hydrologic accounting unit)
South Central Alaska(hydrologic subregion)
Alaska(hydrologic region)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Chromium Critical | Primary |
| Iron | Secondary |
| Materials | Type of material |
|---|---|
| Chromite | Ore |
| Magnetite | Ore |
| Olivine | Gangue |
| Pyroxene | Gangue |
| Model code | 15 |
|---|---|
| USGS model code | 8a |
| Deposit model name | Podiform chromite (minor) |
| Mark3 model number | none |
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite |
| (1) | -151.82253, 59.20946 |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| District name | Homer |
|---|
| Year | 1918 |
|---|---|
| Period | 1914-1918 |
| Accuracy | Estimate |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1946 | ||||||||||||||
| Total resources | 119000mt ore | ||||||||||||||
| Remarks | Entry carried over from Old MRDS or added later (i.e. it did not originate in ARDF) | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A010671 | |
| USGS | Alaska Resource Data File | ARDF | SV005 |
Martin G.C., Johnson, B.L., and Grant, U.S., 1915, Geology and mineral resources of Kenai Peninsula, Alaska: U.S. Geological Survey Bulletin 587, 243 p.
Brooks, A.H., 1918, Mineral resources of Alaska, 1916: U.S. Geological Survey Bulletin 662, 469 p.
Gill, A.C., 1920, Preliminary report on the chromite of Kenai Peninsula: U.S. Geological Survey Bulletin 712, p. 99-129.
Martin, G.C., 1920, The Alaska mining industry in 1918: U.S. Geological Survey Bulletin 712-A, p. 1-52.
Brooks, A.H., 1921, The future of Alaska mining, in Martin G.C. and others, Mineral resources of Alaska, 1917: U.S. Geological Survey Bulletin 714, p. 5-57.
Gill, A.C., 1922, Chromite of Kenai Peninsula, Alaska: U.S. Geological Survey Bulletin 742, 52 p.
Guild, P.W., 1942, Chromite deposits of Kenai Peninsula, Alaska: U.S. Geological Survey Bulletin 931-G, p. 139-175.
Sanford, R.S., and Cole, J.W., 1949, Investigation of Claim Point chromite deposits, Kenai Peninsula, Alaska: U.S. Bureau of Mines Report of Investigations 4419, 11 p.
Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.
Cobb, E.H., 1972, Metallic minerals resources map of the Seldovia quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-397, 1 sheet, scale 1:250,000.
Bird, M.L., 1977, Electron-microprobe analyses of chromite and olivine from alpine ultramafic complexes: U.S. Geological Survey Open-File Report 77-236, 69 p.
Foley, J.Y., and Barker, J.C., 1985, Chromite deposits along the Border Ranges fault, part 1, Field investigations and descriptions of chromite deposits: U.S. Bureau of Mines Information Circular 8990, 58 p.
Nokleberg, W.J., Bundtzen, T.K., Berg, H.C., Brew, D.A., Grybeck, D.J., Robinson, M.S., Smith, T.E., and Yeend, W., 1987, Significant metalliferous lode deposits and placer districts of Alaska: U.S. Geological Survey Bulletin 1786, 104 p.
Foley, J.Y., 1992, Ophiolite and other ultramafic metallogenic provinces in Alaska (west of the 141th meridian): U.S. Geological Survey Open-file Report 92-20-B 65 p.
MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
Mertie, J.B., Jr., 1919, Chromite deposits in Alaska: U.S. Geological Survey Bulletin 692-D, p. 265-267.
Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Seldovia quadrangle, Alaska: U.S. Geological Survey Open-file Report 80-87, 47 p.
Grant, U.S., and Higgins, D.F., Jr., 1910, Preliminary report on the mineral resources of the southern part of Kenai Peninsula: U.S. Geological Survey Bulletin 442-D, p. 166-178.
| Subject category | Comment text |
|---|---|
| Deposit | Model Name = Podiform chromite (Cox and Singer, 1986; model 8a) |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 25-FEB-1999 | Jeff A. Huber | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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