 | 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...Table 1). The Boyongan porphyry Cu-Au deposit, Philippines, is a significant exception to this pattern. |  | | Journal (article/letter/editorial) | | the Intermontane belt of British Columbia, the Philippines, Sulawesi, Papua New Guinea, Sabah and Puerto...occurrence of significant molybdenum values in some island arc porphyry coppers (Titley, 1978), it seems generally...generally to be true that deposits generated in island arcs tend to be richer in gold and poorer in molybdenum...deposits and examinations of deposits in the Philippines and Sabah, suggests that local factors related... although a few, such as Panguna, Bougainville Island, were substantially richer in gold. Here attention |  | | Book | | within it. Samples which have been collected in a mine or open pit exhibit more abundant reflections as...the ore minerals 5.4.3(c) Cell, cellular-island, or island-mainland texture This is possibly the most...replacing mineral. The degree of replacement in island-mainland texture can vary from an initial to an...has been used to describe the initial stages of island-mainland texture. As this texture (caries texture)...is considered in this text as a subdivision of island-mainland, as well as a variant of rim replacement |  | | Book | | 61 ， The Mankayan Mineral District, .Luzon Philippines. Artemio F Disini, Bruce M Robertson and Rene...Agua Rica Porphyry Cu-Mo-Au Deposit，Catamarca Province, Northwestern Argentina. Part 1 : Exploration...a deposit, but rather the engineering ability to mine on a large scale at low cost, and simultaneously...Baguio and Lepanto-Mankayan districts in the Philippines, which commenced operation in the mid 1930rs...growing in Africa, the other great copper producing region, new sources o f copper were sought. As a consequence |  | | Book (edition) | | • t --•- """"" ' The Lornex copper-molybdenum mine and plant, Highland Valley, British Columbia. (By...measurements have been retained in specific cases such as mine levels when measured in feet, values of gold and...developing an annual ton of new copper capacity from mine through the refinery without intrastructure costs...fold in three years. As an example, the " Surface Mine Control and Reclamation Act,' ' which was initially...resources in the future.'' In 1977, a surface coal mine regulation that greatly restricts the areas of strip |  | 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...the Cordillera Central and southern Cordillera Occidental may well be rewarding. 4) Detailed study of...of the Cordillera Central. (5) The Cordillera Occidental, composed of late Mesozoic oceanic crust upon...Cordillera Central (continental) from the Cordillera Occidental (oceanic). This zone, in the subsurface, separates...Cordilleras Central and Occidental (Cauca-Patia Valley), the Cordillera Occidental and Serrania de Baudo |  | | 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 | | metalliferous region has been eroded affects its present characteristics as a minera1 province, because of...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...orogenic belts formed in evolutionarily primitive island arcs, e.g. in the Izu Peninsula, Japan and elsewhere;...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...BALKHASH (PRIBALKHASH) REGION, KAZAKHSTAN, U.S.S.R. This is an outstanding region of Permo-Carboniferous |  | | Book | | metalliferous region has been eroded affects its present characteristics as a mineral province, because of...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...orogenic belts formed in evolutionarily primitive island arcs, e.g. in the Izu Peninsula, Japan and elsewhere;...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...BALKHASH (PRIBALKHASH) REGION, KAZAKHSTAN, U.S.S.R. This is an outstanding region of Permo-Carboniferous |  | | Book | | 1YPesetting: Overseas 1YPographers, Inc., Makati, Philippines 2132/3145-543210 - Printed on acid-free paper................... . Porphyry Copper Deposits in Island Arcs .. . The Panguna Porphyry Copper Deposit,............................ 1.5.3 The Baguio, Philippines and Thyoltita, Mexico Vein Systems ............Deposits ................ . 4.5.2 The Homestake Gold Mine, South Dakota .. 4.5.3 Pre-Metamorphic Stratiform...Post-Metamorphic Quartz-Rich Vein Ores: The Sigma Mine, Quebec ................ . 4.5.5 Discussion and |  | | Report (volume) | | and effective resource assessment of such a broad region required that grade-tonnage models be created for...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...Porphyro~ph~nitic-16 to 22 23 to 24 Chemic~ 1 sediments Region~! _ _ 5 to 10 11 to 12 { M~fic { ~rea Ph~nerocryst~lline-13...government believed might someday be economic ta mine. Stratiform deposits of large areal extent, such |  | | Book (edition) | | ....................... 1625 IX.1. Andaman Sea Region ................................................................................. 2003 IX.8. Philippines (General, Palawan, Luzon) ............................................... 2048 IX.9. South Philippines (Celebes Sea, Sulu Sea, Sandakan) .............2140 IX.11. Papua New Guinea (East New Guinea main island) ................................................public-domain publications listed alphabetically by region or by subject. It resumes a tradition of annotated |  | | Report (volume) | | deposits in Devonian rocks of the Valley and Ridge province, Appalachian Mountains: Economic Geology, v. 81...in a stratiform body in schist at the Homestake mine in British Columbia. There is a distinct absence...... . Brazil ....................... . Castle Island ................. . Cathy (Walt) ................Ajo, Arizona Berg, British Columbia Basay, Philippines Andacolla, Chile Bethlehem, British Bell,...British Columbia Mamut, Malaysia Marcopper, Philippines Ok Tedi, Papua New Guinea Panguna, Papua New |  | | Journal (volume) | | Rhexoxylon and Dadoxylon from the Lower Shire Region of Nyasaland and Portuguese East Africa . By Professor...Guiana Occurrence of Helium- bearing Gases in Lake Province, Tanganyika 85 85 86 87 88 89 90 91 91 210 211...Rhexoxylon africanum Banc . Half the expanded Pith Region of a large Stem, with Shreds of normal Secondary...Guadalcanal Coloured Geological Sketch Map of Malaita Island Plate I Photomicrographs of San Jorge Rocks 1.... Selefer, San Jorge. 4. Micro -syeno -diorite, Island Point, Buena Vista . Photomicrographs of Rocks |  | | Report (issue) | | highest-lying diamond pipe. Commissioning Letseng mine at 10 500 feet during the last two years has called...Whatever you're mining, wherever you're mining, mine it on Bridgestones Bridgestones — for all the variables...Operating conditions differ enormously from mine to mine. Not only are there variations in the kind of...Whatever you’re mining, wherever you’re mining, mine it on Bridgestones. iaaseinn Money — BRIDGE STONE...North Korea Norway Pakistan Panama Papua Peru Philippines Poland Portugal Puerto Rico Rhodesia Venezuela |  | | Report (issue) | | «2. of the eccisemene of the Misima Gold-Silver Mine, Papua New Guinea ........ .G. I. Wilson and R....C. Barwick eae ie Discovery. The McLaughlin Gold Mine, Napa, Yolo, and Lake Counties, California Fre...exposures in a poorly accessible and largely unexplored region. There cannot be many such regions remaining. But...is arbitrary, because concepts have changed in mine was in production until the 1970s. Some indi- cations...with new discoveries, augmented geologic the Los mine (Cronstedt, 1754). The alloy was called knowledge |  | | Book | | disseminating the information, the mine geologists and mine managers who have made the mine visits a rewarding experience...concentration required to achieve the break-even point for a mine in terms of revenue and costs. Any detailed exploration...(1955), a metallogenic province may be defined as a mineralized area or region containing mineral deposits...The size of a metallogenic province can be as large as the Superior Province (Canadian Shield) or as small...as the Upper Michigan Peninsula native copper province. Similarly, a metallogenic epoch can be as broad |  | | Journal (issue) | | Shipments by mines for 1958, 1959, 1960 B96 Open Pit Mine Production ef 3 Technological ; Advances Tons...Tons mined and stripped & 99 Underground Mine Production from 1955 through 1960 > 101 Geology and...built for heavy off-highway service in construction, mine, quarry and industrial tons For work under large...the 1961 FOR 1960 Blue Ribbon Equipment U. S. MINE Awards Services Supplies REVIEW L. Rice Henry...Bcgert Min-r N-n-Metallics Mol. bdenum, Gecrge MINE % FOR Africa Asbestos, Karl V. Lindell Beryllium |
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