 | | Report (issue) | | and A. Lott I/ Stanford University, Stanford, California 94305 U.S. Geological Survey Open-file Report...following deposit types are presented; podiform chromite, porphyry copper, porphyry molybdenum, skarn tungsten...for porphyry copper deposits and for podiform chromite deposits and may exist but not be recognized for...because mining concerns attempt to develop long-range mine plans now. It is also more common in recent...Johnson, and Jocelyn Peterson. Podiform Chromite Chromite deposits were classified as podiform if their |  | | Report (issue) | | TABLE OF CONTENTS Page Introduction 1 Podiform chromite 3 Porphyry copper molybdenum rich 9 Porphyry...significant. -2- MODEL NUMBER DEPOSIT TYPE Podiform chromite 1.1 AUTHOR D. A. Singer DATA REFERENCES Singer...others, 1978. COMMENTS All deposits are from California and Oregon. The two largest tonnage deposits...Co.) Apex (El Dorado Co.) Applegate Associated Chromite Babcock Babyfoot Beat Big Bear Binder No. 1 Big...Strike) Boiler Pit Booker Lease Bonanza Bowden Prospect Bowie Estate Bowser Bragdor Briggs Creek Brown |  | | Journal (volume) | | MAR1 v* 1950 STATE OF CALIFORNIA DEPARTMENT OF NATURAL RESOURCES CALIFORNIA JOURNAL OF MINES AND GEOLOGY...off California and Mexico 7 Geology Along the Electra and West Point Tunnels, Amador County, California...23 County, California Geology of the Placerita Oil Field, Perlite Deposits in Sonoma County, Mines... Los Angeles County, California of California Sonoma County, 43 81 83 California of the State...FERRY BUILDING, SAN FRANCISCO _ 143 STATE OF CALIFORNIA EARL WARREN, Governor DEPARTMENT OF NATURAL RESOURCES |  | | Report (volume) | | Colorado-- Federal Center, Bldg. 810 MENLO PARK, California--Bldg. 3, Rm. 3128,345 Middlefield Rd. • RESTON... Rm. 8105,125 South State St. SAN FRANCISCO, California--Customhouse, Rm. 504, 555 Battery St. SPOKANE...pediform chromite, by John P. Albers 34 Grade and tonnage model of minor pediform chromite, by Donald...34 Grade and tonnage model of major pediform chromite, by Donald A. Singer, Norman J Page, and Bruce...cross-section of pediform chromite deposits 40 Tonnages of pediform chromite deposi a typical mafic-ultramafic |  | Hodges, C.A., Cox, D.P., Singer, D.A., Case, J.E., Berger, B.R., Albers, J.P. (1984) U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia. Open-File Report Vol. 1984 (84-345) US Geological Survey doi:10.3133/ofr84345 | Report (issue) | | Geological Survey editorial standards. Menlo Park, California 1984 Contents Summary 1 Introduction 2...(classification number in Appendices A and B) 48 Podiform chromite (1.1) 7 Porphyry copper molybdenum-rich; gold-rich...for given deposit types, as labeled 2. Podiform chromite 6 3. Porphyry copper, Mo-rich; Au-rich 8 ...environments of Colombia are permissive for a wide range of mineral deposit types. In addition to new deposits...elements, significant resources of lead, zinc, chromite, manganese, and possibly cobalt and bauxite may |  | | Report (issue) | | ("commodity") se presentan con la misma escala; se usa una escala logarftmica para los tonelajes y la mayorfa...MXCO (2) Roaeland, USVA Sanford Lake, USNY Laraoie Range, USWY (Herz y Force, 1984} (Paulaon, 1964) (Herz...Ninguna conocida. EJEMPLOS High Plateau, Del Norte County, USCA Goto Mine, Luzon, PLPN (Wells y otroa, 1946)...recopilacion corresponde a laa minaa ubicada en California y Oregon. Los doa yacimientos con loa tonelajes...Clary and Langford Cleopatra Clover Leaf Codd Prospect Coggins Collard Mine Commander Coon Mt. Nos. 1-3 |
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