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Paymaster Mine (Paymaster group; Complex Minerals; President claim; Flagpole group; Hazel claim; Emilia), Midway Well, Paymaster District, Chocolate Mts, Imperial Co., California, USA

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Latitude & Longitude (WGS84): 33° 11' 48'' North , 114° 54' 21'' West
Latitude & Longitude (decimal): 33.19667,-114.90611
Other regions containing this locality:Sonoran Desert, North America
Köppen climate type:BWh : Hot deserts climate


A former Pb-Ag occurrence/mine located in the SE¼W½ sec. 19, and in the NW¼ sec. 30, T11S, R20E, SBM, 4.8 km (3.0 miles) WSW of Midway Well (3.5 miles NE of Mount Barrow). MRDS database stated accuracy for this location is 100 meters. Operated during the periods 1919-1921, 1922-1923 (tailings cyanided) & 1938-1939.

Mineralization is hosted in schist. The ore body strikes N35-65E and dips 65-75NW at a width of 12.8 meters. Deposit is parallel to the foliation in the schist. Sparse blue copper staining occurs in parts. Local rocks include Tertiary intrusive rocks (hypabyssal), unit 6 (Southern Mojave Desert).

Workings include underground openings comprised of the Paymaster 325 foot inclined shaft. A 125 foot long, 8 to 15 foot wide stope extends to surface. A 450 foot inclined shaft was sunk on the President. It has levels every 50 feet and 1,000 feet of horizontal workings. The Hazel has a 50 foot and 100 foot shafts with undetermined horizontal workings.

Production information: 25,000 tons of ore valued at $170,000 (period values). 50% error possible on tonnage estimate and value.

Mineral List


11 valid minerals.

Rock Types Recorded

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Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Tortonian - Chattian
7.246 - 28.1 Ma



ID: 2729233
Tertiary intrusive rocks (hypabyssal), unit 6 (Southern Mojave Desert)

Age: Cenozoic (7.246 - 28.1 Ma)

Description: Tertiary intrusive rocks; mostly shallow (hypabyssal) plugs and dikes. Includes some Mesozoic rocks.

Lithology: Major:{hypabyssal basalt,hypabyssal rhyolite,hypabyssal dacite}, Minor:{hypabyssal andesite}, Incidental:{hypabyssal basaltic andesite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Merrill, Frederick James Hamilton (1916), San Diego, Imperial Counties: Calif. Min Bureau Report 14: 635-743; […(abstract): Geol. Zentralbl., Band 27: 395 (1922)]: 732-733.

Tucker, W. Burling (1926), Imperial, Inyo Counties: California Mining Bureau. Report 22: 262-264.

Sampson, Reid J. & W. Burling Tucker (1942), Mineral resources of Imperial County: California Journal of Mines and Geology, California Mining Bureau. (Report 38): 127-128.

Southern Pacific Company (1964b) Minerals for Industry, Vol III - Southern California, 3, 242 pp.: 150.

Morton, P.K. (1977) Mines and mineral resources of Imperial County, California. California Division of Mines and Geology County Report 7, 104 pp.: 47, 92-93.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 83, 89, 101, 106, 193-194, 230.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10064344 & 10285353.

U.S. Bureau of Mines Minerals Availability System/Mineral Industry Location System (MAS/MILS): file #0060250159.

 
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