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Duncan Creek deposit, Lookout Peak, Klamath Mts, Shasta Co., California, USA

Latitude: 40°26'43"N
Longitude: 122°45'51"W

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A Mn occurrence located in sec. 28, T30N, R8W, MDM, 7.0 km (4.3 miles) SSE of Lookout Peak (coordinates of record), along the East Fork Duncan Creek. Location approximate. Discovered 1918. Owned by the American Mining and Smelting, Inc. (1974). MRDS database accuracy for this location is not stated.

Local rocks include schist of various types and ages, unit 7 (Klamath Mountains) and/or Lower Cretaceous marine rocks.

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References

Trask, Parker Davies, Ivan F. Wilson & F.S. Simons (1943), Manganese deposits of California – a summary report: California Division Mines Bulletin 125: 182.

Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 266.

Trengrove, Russell R. (1960), Reconnaissance of California Manganese Deposits, U.S. Bureau of Mines Report of Investigation 5579: 13.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033602 & 10116538.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060890002.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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: 20th Jun 2012 17:31:16