Stephen B. Castor
Research Geologist, Economic Geology
Nevada Bureau of Mines and Geology
Mackay School of Earth Sciences and Engineering
University of Nevada, Reno
Business telephone: (775) 784-1768
FAX: (775) 784-1709
Ph.D. Geology, University of Nevada, Reno, 1972
M.S. Geology, University of Nevada, Reno, 1971
B.A. Geology, University of California at Riverside, 1965
Areas of Expertise
Research Geologist, Nevada Bureau of Mines and Geology (1988 to present)
Mine Geologist, Mountain Pass Operations, Unocal Molycorp, Mountain Pass, California 1984-88)
Senior Exploration Geologist, Union Molycorp Exploration, Spokane, Washington, (1981-84)
Geologist, Bendix Field Engineering Corporation, Spokane, Washington (1976-81)
Geologist, Ethyl Corporation, Baton Rouge, Louisiana (1972-76)
Geologist, Bear Creek Mining Company, Reno, Nevada (1971)
Volunteer Geologist, U.S. Peace Corps, Ghana (1965-67)
Bryan, D.P., Castor, S.B., and Johnson, G.L., 2000, Aggregate resource study, western portion of the Carson City district, Nevada, with addendum - economic potential: Nevada Bureau of Mines and Geology Open-File Report 2000-3, 30 p.
Castor, S.B., and Henry, C.D., 2000, Volcanic rock-hosted uranium deposits in northwestern Nevada and southeastern Oregon: Ore Geology Reviews, v. 16, p. 1-40.
Castor, S.B., Garside, L.J., and de Polo, C. M., 1999, Geologic map of the west half of the Moses Rock Quadrangle, Nevada: NBMG Open-File Map 99-11.
Castor, S.B., Garside, L.J., Tingley, J.V., LaPointe, D.D., Desilets, M.O., Hsu, L.C., Goldstrand, P.M., Lugaski, T.P., and Ross, H.P., 1999, Assessment of metallic and mined energy resources in the Yucca Mountain conceptual controlled area, Nye County, Nevada: NBMG Open-File Report 99-13, 204 p. plus appendices (264 p.) and plates.
Henry, C.D., Boden, D.R., and Castor, S.B., 1999, Geologic map of the Tuscarora Quadrangle, northern Nevada: Nevada Bureau of Mines and Geology Map 116.
Tingley, J.V., and Castor, S.B., 1999, Stream sediment exploration for gold and silver in Nevada - application of an old prospecting method using modern analytical techniques: Journal of Geochemical Exploration, v. 68, p. 1-16.
Tingley, J.V., Castor, S.B., Garside, L.J., and LaPointe, D.D., 1998, Mineral and energy resource assessment of the Carson City Urban Interface Area, Carson City, Nevada: Nevada Bureau of Mines and Geology Open-File Report 98-5, 136 p.
Tingley, J.V., Castor, S.B., Weiss, S.I, Garside, L.J., Price, J.G., LaPointe, D.D., Bonham, H.F. Jr., and Lugaski, T.P., 1998, Mineral and energy resource assessment of the Nellis Air Force Range, Clark, Lincoln, and Nye Counties, Nevada: Nevada Bureau of Mines and Geology Open-File Report 98-1, 2 vols., 800 p.
Castor, S.B., 1997, Sterling Mine, Nye County, Nevada, in Vikre, P., Thompson, T., Bettles, K., Christensen, O., and Parratt, R., eds., Carlin-Type Gold Deposits Field Conference: Society of Economic Geologists Guidebook Series, v. 28, p. 167-170.
Castor, S.B., Garside, L.J., Tingley, J.V., La Pointe, D.D., Desilets, M.O., Hsu, L.C., Goldstrand, P.M., Lugaski, T.P., and Ross, H.P., 1997, Assessment of metallic energy resources in the Yucca Mountain Controlled Area, Nye County, Nevada: Draft Report prepared for the Civilian Radioactive Waste Management System Management and Operating Contactor, Las Vegas, Nevada, 204 p. + appendices (264 p.) + 10 plates.
Castor, S.B., and Hulen, J.B., 1996, Gold and hydrocarbons at the Gold Point mine, Currant mining district, Nevada, in Coyner, A.R., and Fahey, P.L., eds., Geology and ore deposits of the American Cordillera: Geological Society of Nevada Symposium, Reno/Sparks, Nevada, April 1995, Proceedings, p. 547-565.
Castor, S.B., Henry, C.D., and Shevenell, L., 1996, Volcanic-rock hosted uranium deposits in northwestern Nevada and southeastern Oregon - possible sites for studies of natural analogues for the potential high-level nuclear waste repository at Yucca Mountain, Nevada, Nevada Bureau of Mines and Geology Open-File Report 96-3, 81 p.
Castor, S.B., 1994, Rare earth minerals, in D.D. Carr (editor) Industrial Minerals and Rocks, 6th Edition: SME/AIME, Littleton, Colorado, p. 827-839.
Castor, S.B., Tingley, J.V., and Bonham, H.F., 1994, Pyritic Tuff, Yucca Mountain, Nevada: Economic Geology, v. 80, no. 2, p. 401-407.
Castor, S.B., 1993, Borate deposits in the Muddy Mountains, Clark County, Nevada: Nevada Bureau of Mines and Geology Bulletin 105, 31 p. + maps.
Castor, S.B., 1993, Industrial minerals in Nevada - an overview: Society for Mining, Metallurgy, and Exploration Annual Meeting, 1993, Preprint 93-35, 4 p.
Castor, S.B., 1993, Rare earth deposits and Proterozoic anorogenic magmatism, in Y. Maurice (editor) Proceedings, Eighth IAGOD Symposium: 1990, Ottawa, Canada: E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, Germany, p. 331-340.
Castor, S.B., and Sjoberg, J.J., 1993, Uytenbogaardtite, Ag3AuS2, in the Bullfrog mining district, Nevada: Canadian Mineralogist, v. 31, p. 89-98.
Castor, S.B., and Weiss, S.I., 1992, Contrasting styles of epithermal precious-metal mineralization in the southwestern Nevada volcanic field: Ore Geology Reviews, v. 7, p. 193-223.
Geologic Society of Nevada
Society of Economic Geologists
Association of Exploration Geochemists
Geological Society of America