The paragenesis of some gold and copper ores of southwestern Oregon

The Conterminous United States Mineral Appraisal Program; background information to accompany folio of geologic, geochemical, geophysical, and mineral resources maps of the Medford 1 degree x 2 degrees Quadrangle, Oregon and California

“…The data were published in series of reports tt''l't covered the entire state or individual countier (Winchell, 1914;Butler and Mitchell, 1916;Parks and Swartley, 1916;Oregon Department of Geology and Mineral Industries, 1940;1942;and 1943). This program continues to the present witt' the publication of a series of compilations concerning specific ore-deposit types (chromite, Eamp, 1961;mercury, Brooks, 1963;gold and silver, Brooks and Ramp, 1968;nickel, Ramp, 1978), as well as revised county reports (Douglas County, Ramp, 1972;central Jackson County, Be-:.ulieu and Hughes, 1977;Josephine County, Ramp and Peterson, 1979).…”