01587oam 2200469 450 991070963440332120180608084847.0(CKB)5470000002471894(OCoLC)896811071(OCoLC)995470000002471894(EXLCZ)99547000000247189420141123d1985 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierGeology of the Tanamá and Helecho porphyry copper deposits and vicinity, Puerto Rico /by Dennis P. CoxWashington :Department of the Interior, U.S. Geological Survey,1985.1 online resource (iv, 59 pages) illustrations, maps +1 plateU.S. Geological Survey professional paper ;1327Title from title screen (viewed October 14, 2014).Includes bibliographical references (pages 58-59).PorphyryPuerto RicoTanamá RegionCopper oresPuerto RicoTanamá RegionCopper oresfastPorphyryfastPorphyryCopper oresCopper ores.Porphyry.Cox Dennis P.1402165Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910709634403321Geology of the Tanamá and Helecho porphyry copper deposits and vicinity, Puerto Rico3542956UNINA