Deer Creek Chrysoprase Mine (Chrysoprase workings; Gemstone occurrence), Tennessee Knob, Tulare Co., California, USA
|Latitude & Longitude (WGS84):||35° 59' 48'' North , 118° 58' 4'' West|
|Latitude & Longitude (decimal):||35.9966666667, -118.967777778|
A former semi-precious gemstone-Mn mine/deposit located in secs. 20 & 29, T22S, R28E, MDM, 2.3 km (1.4 miles) NNW of Tennessee Knob, near Deer Creek.
|Neogene2.588 - 23.03 Ma||Neogene sedimentary|
|Cretaceous66 - 145 Ma||Cretaceous plutonic rocks|
Deep-seated to high-level intrusions are included. Many charnockites, anorthosites, and large ophiolites, classified as plutons, are distinguished in the database using the SIGNIF item. Ophiolites were classified as plutons, even where remnants may be extrusive and/or sedimentary.
|Early Jurassic - Neoproterozoic174.1 - 1000 Ma||Ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains)|
Tectonized ultramafic complexes in western Sierra Nevada and western Klamath Mts., primarily of Ordovician to Early Jurassic age. Characterized in large part by serpentinite-matrix melanges containing blocks and slabs of ultramafic and other rocks
References for regional geology:
Data provided by Macrostrat.org
Garrity, C.P., and Soller, D.R.,. Database of the Geologic Map of North America: adapted from the map by J.C. Reed, Jr. and others (2005). U.S. Geological Survey Data Series 424 .
USGS compilers. State geologic map data. State Maps.
Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.
Tucker, W. Burling (1919), Tulare Counties: California Mining Bureau. Report 15: 911.
Hamilton, Fletcher McNab (1922), eighteenth report of the State Mineralogist: California Mining Bureau. Report 18; 767 pp.: 247.
Goodwin, Joseph Grant (1958), Mines and mineral resources of Tulare County, California: California Journal of Mines and Geology: 54: 375-376.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 299, 318.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 350.