 | 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...from shallower supergene copper oxide minerals (malachite + azurite + cuprite) to deeper sulfide-stable...–5.7 per mil. At the latitude of the southern Philippines, this value corresponds to Pleistocene rain water |  | | Journal (article/letter/editorial) | | Bayugo Porphyry Copper-Gold Deposit, Southern Philippines DAVID BRAXTON1,†,* AND RYAN MATHUR2 1 Anglo ...of the Bayugo porphyry copper-gold deposit (Philippines) show significant isotopic fractionation relative...Boyongan-Bayugo porphyry copper-gold district, Philippines. We examine the copper isotope geochemistry to...crust beneath the Philippines (Fig. 1, inset). To the west, collision of the Philippines with the Eurasia...respectively. East of the central and southern Philippines, the Philippine Sea plate is undergoing subduction |  | | Journal (article/letter/editorial) | | Emerging Porphyry District in Northeast Mindanao, Philippines* David P. Braxton,1,2,†,** David R. Cooke,1,3...American Exploration (Philippines) Inc., 21 Outlook Drive, Baguio City 2600, Philippines Abstract The Boyongan...the Surigao district of northeast Mindanao, Philippines. Since their formation in the early Pleistocene... Introduction Located in the northeast of the island of Mindanao, Boyongan and Bayugo are two Cu-Au...historic Surigao Au district of the southern Philippines (Fig. 1). Recent mineral resource estimates for |  | | Report (issue) | | along convergent plate-margin boundaries or in island-arc environments. The deposits are associated with...Clark and others, 2007). In the thermal infrared region, quartz and hydrous silica contain emission minima...oxide ores, a typical assemblage might include malachite + azurite + cuprite + chrysocolla, with minor...likely derived from more mafic mantle magmas. In island-arc settings, the crust is thinner and the host...the magma is largely inherited from the source region (Carmichael, 1991). Other parameters, such as magma |  | Volkov, A. V., Savva, N. E., Sidorov, A. A., Egorov, V. N., Shapovalov, V. S., Prokof’ev, V. Yu., Kolova, E. E. (2006) Spatial distribution and formation conditions of Au-bearing porphyry Cu-Mo deposits in the Northeast of Russia. Geology of Ore Deposits, 48 (6) 448-472 doi:10.1134/s107570150606002x | Journal (article/letter/editorial) | | postaccretionary tectonic units superimposed on island-arc and oceanic terranes (Geodynamics…, 2006)....the nature of massive sulfide copper deposits in island arcs (Kovalev et al., 1993; Herbert and Constantine...River Pebble Copper Tampakan Atlas Chuquicamata Sipalay Location Gold reserves, t Au, g/t Cu, % 2480...50 0.55 0.50 Papua New Guinea United States Philippines Chile Papua New Guinea Indonesia Peru Papua New...Argentina Papua New Guinea Alaska Philippines ″ Chile Philippines numerous base-metal, gold–silver, |  | | 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 | | 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 |  | 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 |  | | 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 (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 |  | | 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) | | 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 |  | | Report (issue) | | Selkirk Tekwane Tnierry Vakkerlien Vaaanala Yakobi Island USAK USPA CNBC NWY BOTS BOTS CNQU »DN BOTS BOTS...EJEMPLOS High Plateau, Del Norte County, USCA Goto Mine, Luzon, PLPN (Wells y otroa, 1946) (LeBlano y Violette...Nombre Ace of Spades Adobe Canyon Gp. Ajax Alice Mine Allan (Johnson) Alta Hill Althouse Alyce and Blue...etc Buttercup Chrome Camden Mine Campbell Camptonville area Castro Mine Cattle Springs Cavyell Horse...Cleopatra Clover Leaf Codd Prospect Coggins Collard Mine Commander Coon Mt. Nos. 1-3 Copper Creek (Low Divide) |  | | 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 |  | | 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 |  | | 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 |  | | 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 |  | | 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 |
|
