 | Taylor, R. D., Goldfarb, R. J., Monecke, T., Fletcher, I. R., Cosca, M. A., Kelly, N. M. (2015) Application of U-Th-Pb Phosphate Geochronology to Young Orogenic Gold Deposits: New Age Constraints on the Formation of the Grass Valley Gold District, Sierra Nevada Foothills Province, California. Economic Geology, 110 (5) 1313-1337 doi:10.2113/econgeo.110.5.1313 | Journal (article/letter/editorial) | | Formation of the Grass Valley Gold District, Sierra Nevada Foothills Province, California Ryan D. Taylor...CO 80309 Abstract The Grass Valley orogenic gold district in the Sierra Nevada foothills province, central...central California, the largest historic gold producer of the North American Cordillera, comprises both...and shallowly dipping N-S veins hosted by the Grass Valley granodiorite; the latter have yielded about...ounces of historic lode gold production in the district. The oceanic host rocks were accreted to the western |
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Grass Valley Mining District, Nevada County, California, USA