O'Hara Mine (Franklin Mine), Sonora, Sonora District, East Belt, Tuolumne Co., California, USA
| Latitude & Longitude (WGS84): | 37° 59' 34'' North , 120° 22' 48'' West |
|---|---|
| Latitude & Longitude (decimal): | 37.99278,-120.38000 |
| GeoHash: | G#: 9qf2hsmgy |
| Locality type: | Mine |
| Köppen climate type: | Csa : Hot-summer Mediterranean climate |
A former lode Au pocket mine located in sec. 25, T2N, R14E, MDM, 1.0 km (3,200 feet) N of Sonora, along Woods Creek, on private land. Holdings are of 27 acres. MRDS database stated accuracy for this location is 500 meters.
Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include unspecified underground openings.
Mineral List
2 valid minerals.
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
| Triassic - Ordovician 201.3 - 485.4 Ma ID: 2914721 | Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada) Age: Phanerozoic (201.3 - 485.4 Ma) Stratigraphic Name: Calaveras Complex; Shoo Fly Complex; Blue Canyon Formation; Briceburg Formation; Cape Horn Slate; Delhi Formation; Hite Cove Formation; Kanaka Formation; Relief Quartzite; Tightner Formation Description: Undivided Paleozoic metasedimentary rocks. Includes slate, sandstone, shale, chert, conglomerate, limestone, dolomite, marble, phyllite, schist, hornfels, and quartzite Comments: Western Sierra Nevada. Lower Paleozoic Shoo Fly Complex and upper Paleozoic to lower Mesozoic Calaveras Complex, undivided. Deformed and metamorphosed rocks composed primarily of quartzite, argillite, and chert; includes melange Lithology: Major:{argillite,quartzite,phyllite}, Minor:{mudstone,sandstone,chert}, Incidental:{schist, marble, conglomerate, sedimentary breccia, limestone, basalt} 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] |
| Devonian - Silurian 358.9 - 443.8 Ma ID: 3185269 | Paleozoic sedimentary and volcanic rocks Age: Paleozoic (358.9 - 443.8 Ma) Comments: Mccloud Arc Lithology: Mudstone-carbonate-sandstone-conglomerate Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
O'Hara Mine, Sonora, Sonora District, East Belt, Tuolumne Co., California, USA