DOGAMI Bulletin 93, Geology, Mineral Resources, and Rock Material Of
-- . .. .. · • �- l - "" GEOLOGY, MINERAL RESOURCES and ROCK MATERIAL of CURRY COUNTY,OREGON 1977 STATE OF OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES RALPH S MASON STATE GEOLOGIST STATE OF OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES 1069 State Office Building, Portland, Oregon 97201 Bulletin 93 GEOLOGY, MINERAL RESOURCES, AND ROCK MATERIAL OF CURRY COUN TY, OREGON by Len Ramp, Herbert G. Schlicker, and Jerry J. Gray Oregon Department of Geology and Mineral Industries Conducted in conformance with ORS 516.030 Funded in part with a grant from the Land Conservation and Development Commission to Curry County · GOVERNING BOARD STATE GEOLOGIST Leeanne MacColl Portland Ralph S. Mason Robert W. Doty Talent 1977 John L. Schwabe Portland CONTENTS INTRODUCT ION --- Purpose --- - ---- 1 Methods of Study -------- 1 Acknowledgments ----- 1 Previous Work ----- 2 GEOGRAPHY 3 Location, Extent, and Access 3 Socio-Economic and Political Factors - 3 GEOLOGY 5 General 5 Geologic Units and Mineral-Resource Potential 5 Amphibolites (ag) -- -- - - ---- 5 Rogue Formation ( Jr, Jrd) ------- 5 Galice Formation (Jg, Jgv) - -- - 6 Colebrooke Schist (Jc, Jcv) 6 Ultramafic rocks (Jur) - -- - - ------- 7 Gabbro, metagabbro, and hornblendic metapyroxenite (gb, mg, hm) 8 Diorite and related rocks (di) - --- 8 Dothan-Otter Point Formations (Jdo, Jv) - - 9 Cretaceous sedimentary rocks (Km, Ku) ---- 10 Tertiary sediments (Ts) - ------- 10 Tyee Formation (Tet) ---- ---- 11 Tertiary intrusive rocks (T i) ---- 11 Tertiary stream gravels (Tg) -------- 12 Unconsolidated
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