 | Deng, Jianghong, Yang, Xiaoyong, Zhang, Li-peng, Duan, Liuan, Mastoi, Abdul Shakoor, Liu, He (2020) An overview on the origin of adakites/adakitic rocks and related porphyry Cu-Au mineralization, Northern Luzon, Philippines. Ore Geology Reviews, 124. 103610pp. doi:10.1016/j.oregeorev.2020.103610 | Journal (article/letter/editorial) | | related porphyry CuAu mineralization, Northern Luzon, Philippines Jianghong Deng, Xiaoyong Yang, Li-peng Zhang...related porphyry Cu-Au mineralization, Northern Luzon, Philippines, Ore Geology Reviews (2020), doi: https://doi...related porphyry Cu-Au mineralization, Northern Luzon, Philippines Jianghong Deng1-4, Xiaoyong Yang4*, Li-peng...rocks. Northern 4 Luzon is one of the most Cu-Au enriched areas in the Philippines, which develops Late-...Central 6 Cordillera Range and southernmost of Cagayan Valley Basin. In this paper, Cenozoic 7 magmatic |  | Braxton, D. P., Cooke, D. R., Ignacio, A. M., Rye, R. O., Waters, P. J. (2009) Ultra-Deep Oxidation and Exotic Copper Formation at the Late Pliocene Boyongan and Bayugo Porphyry Copper-Gold Deposits, Surigao, Philippines: Geology, Mineralogy, Paleoaltimetry, and their Implications for Geologic, Physiographic, and Tectonic Controls. Economic Geology, 104 (3) 333-349 doi:10.2113/gsecongeo.104.3.333 | Journal (article/letter/editorial) | | Bayugo Porphyry Copper-Gold Deposits, Surigao, Philippines: Geology, Mineralogy, Paleoaltimetry, and their...American Exploration (Philippines) Inc. 21 Outlook Drive Baguio City, Philippines 2600 Abstract The Boyongan...the Surigao district of northeast Mindanao, Philippines. Exhumation and weathering of these Late Pliocene-age...–5.7 per mil. At the latitude of the southern Philippines, this value corresponds to Pleistocene rain water...copper. In contrast, higher hypogene pyrite/chalcopyrite ratios (2.3) at Bayugo led to greater acid production |  | | Report (issue) | | deposits, the copper occurs predominantly in chalcopyrite; other important copper ore minerals may include...and arsenides in an assemblage of magnetite, chalcopyrite, and bornite in the porphyry deposit at Elatsite...than areas of less-IP-reactive clay minerals, chalcopyrite, and bornite. Spectral IP has been used to classify...distinguish noneconomic sulfides such as pyrite from chalcopyrite and bornite (Zonge and Wynn, 1975; Zonge and...Clark and others, 2007). In the thermal infrared region, quartz and hydrous silica contain emission minima |  | 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) | | sampling and geophysical surveying throughout the region, begun. The geologic environment of the shield...(oceanic). This zone, in the subsurface, separates the San Jacinto belt from the Sinu belt in the Tertiary basins...Central (Magdalena Valley), the Cordilleras Central and Occidental (Cauca-Patia Valley), the Cordillera...Cordillera Occidental and Serrania de Baudo (San Juan-Atrato Basin), the Serrania de Perija and Sierra Nevada de...percent of the deposits from the California-Oregon region in the United States contain 1,800 tonnes or more |  | | Report (volume) | | 12201 Sunrise Valley Dr. SALT LAKE CITY, Utah--Federal Bldg., Rm. 8105,125 South State St. SAN FRANCISCO...and effective resource assessment of such a broad region required that grade-tonnage models be created for...shown conclusively that the classic Mississippi Valley-type ores cannot have originated from either syngenetic...based on considerations that extend far beyond the mine itself, in some instances relating to the overall...subject, as in a scale model of the workings of a mine, to a unifying concept that explains or describes |  | | Report (issue) | | porphyry copper deposits in the Cascade geologic province. .... .j................. Estimates of metal endowment...the northern spotted owl in the Cascade geologic province (fig. 1) was assessed for tracts that are permissive...of the metal endowment of the Cascades geologic province entails three basic steps: (1) delineation of...porphyry copper deposits in the Cascade geologic province. Eight million metric tons of copper are present...44-51-20N 120-57-19W 47-29-40N Van Epps, Pickwick Mine 122-04-51W 121-46-OOW 47-09-40N 46-21-23N 121-18-22W |  | | Book | | Arqueo/6gicas y Museo. Unii·ersidad Cat6lica de! Norte, San Pedro Alacama. Chile V. Oliveros Departamento de...limestones. The central depression (zone 2), or Central Valley, is a c.Jownwarp with a Mesozoic to Quaternary...several major cities. In southern Chile the centrai valley is not recognized and the transition between the...so-called ·fiat slab' zone). where the Central Valley is also absent. The northern volcanoes a re builL...nitrates from the evaporitic deposits of the Atacama region was paramount). Because of its economic in1portance |
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