 | Hock, M., Friedrich, G., Plüger, W. L., Wichowski, A. (1986) Refractory- and metallurgical-type chromite ores, Zambales ophiolite, Luzon, Philippines. Mineralium Deposita, 21 (3) 190-199 doi:10.1007/bf00199799 | Journal (article/letter/editorial) | | metallurgical-type chromite ores, Zambales ophiolite, Luzon, Philippines M. Hock 1, G. Friedrich, W.L. Pliiger...Abstract. The Zambales ophiolite is the major source of chromite ore in the Philippines. The chromitites...metallurgical-type chromite ores was first observed in Zambales by Fernandez (1960) and has been frequently noted...Al'Ays, Saudi Arabia; the Ural, UdSSR; and in north central Oman (Leblanc and Violette 1983). Geologic setting...peridotites of the Zambales maficultramafic complex form the lowermost level of the Zambales ophiolite, overlain |  | | Journal (article/letter/editorial) | | 2001 The Acoje Block Platiniferous Dunite Horizon, Zambales Ophiolite Complex, Philippines: Melt Type...Controls Graciano P. YUMUL, Jr. Abstract: The Zambales Ophiolite Complex, a supra-subduction zone ophiolite...arc-related Acoje block. This crust-mantle sequence hosts platinum-group elements (PGE) in the Acoje block...the distribution and deposition of the PGE in the Acoje block are affected by olivine, chromite and sulfide...main platiniferous zone is confined within the Acoje block transition zone dunite. (Ni and Cu) metals |  | Yumul, Graciano P., Dimalanta, Carla B., Salapare, Ricky C., Queaño, Karlo L., Faustino-Eslava, Decibel V., Marquez, Edanjarlo J., Ramos, Noelynna T., Payot, Betchaida D., Guotana, Juan Miguel R., Gabo-Ratio, Jillian Aira S., Armada, Leo T., Padrones, Jenielyn T., Ishida, Keisuke, Suzuki, Shigeyuki (2020) Slab rollback and microcontinent subduction in the evolution of the Zambales Ophiolite Complex (Philippines): A review. Geoscience Frontiers, 11 (1) 23-36 doi:10.1016/j.gsf.2018.12.008 | Journal (article/letter/editorial) | | subduction in the evolution of the Zambales Ophiolite Complex (Philippines): A review Graciano P. Yumul Jr...Apex Mining Company Inc., Ortigas, Pasig City, Philippines Rushurgent Working Group, National Institute...Science, University of the Philippines, Diliman, Quezon City, Philippines c GHD, Chino Roces Avenue,... Makati City, Philippines d Department of Environmental Science, Ateneo de Manila University, Quezon...City, Philippines e School of Environmental Science and Management, University of the Philippines - Los |  | | Journal (article/letter/editorial) | | tlzr Plzilippines, Dilimon, Qiiezan City, 2102 Philippines, E-mail: uzqyQi-izext.nct *Carrespoiziincynu...ultramafic-hostcd (i.c., chromitite, nickcl sulfide, platinum-group minerals) deposits in the Philippincs is...mclts that arc enriched in nickcl sulfidcs and platinum group mincrals. On thc basis of structural, gcoclicinical...gcoclicinical and tcctoiiic controls, Panay, Mindoro and Central Mindanao and thc Sicrra Madrc, Leyte, and Sainar...deposition in the western and eastern sides of the Philippines, rcspcctively. Key words: Mineralization, magmatism |  | | Report (issue) | | CHROMITE DEPOSITS OF THE NORTH-CENTRAL ZAMBALES RANGE, LUZON, PHILIPPINES by D. L. Rossman U. S. Geological............................. 7 GEOLOGY OF THE ZAMBALES COMPLEX................................ 8 General.......................... 23 STRUCTURE OF THE ZAMBALES COMPLEX.............................. 24 Layering....... 33 Reserves of chromite in the Goto and Acoje mines........ 34 Description of chromite deposits........... 36 Acoje mine.............................................. 36 Goto mine............... |  | | Journal (article/letter/editorial) | | ophiolitic chromite deposits in the Zambales Range, Luzon, Philippines. Mineral. Deposita 20:290-301 (1985)...D.: Results of study of nickel-platinum ores and concentrates, Acoje Mining Co., Philippine Islands.... J. Geol. Soc. Philippines, IV: 17-21 (1950) Irvine, T.N.: Chromium spinel as a petrogenetic indicator...nickel-platinum mine at the Acoje chromite mine, Santa Cruz, Zambales. J. Geol. Soc. Philippines IV: 11-17...insular chromite reservation number one, Zambales, Philippines. Special Project Series No. 19, Department |  | | Journal (article/letter/editorial) | | http://www.tandfonline.com/loi/tigr20 Zambales Ophiolite Complex (Philippines) Transition-Zone Dunites: Restite... Graciano P. Yumul a a University of the Philippines Published online: 14 Jul 2010. To cite this...article: Graciano P. Yumul (2004) Zambales Ophiolite Complex (Philippines) TransitionZone Dunites: Restite...Son, Inc. All rights reserved. Zambales Ophiolite Complex (Philippines) Transition-Zone Dunites: Restite...Science, University of the Philippines, Diliman, Quezon City, Philippines Downloaded by [University |  | | Journal (article/letter/editorial) | | Vol. 64, 1969, pp. 644-666 Ore Depositsof the Philippines An Introduction Their Geology to 1 LEONID...BRYNER Abstract The geologic history of the Philippines pertinent to ore deposition covers the period...The two largest chromite deposits,Masinloc and Acoje, represent, respectively, refractory and metallurgical...alpine-typeZambalesultramafic complexof western Luzon. The unusually high aluminacontentof the Masin...Masinlocchromitesuggeststhat it is an earlier crystallate than Acoje. The structural settingsof both depositssuggestthat |  | | Journal (article/letter/editorial) | | Boninite and boninite-series volcanics in northern Zambales ophiolite: doubly vergent subduction initiation...Company Inc., Ortigas Center, Pasig City, 1605, Philippines 3 Research Institute of Earthquake and Volcano...Geology, Geological Survey of Japan, AIST, Tsukuba Central 7, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8567, Japan...boninite in the middle Eocene Zambales ophiolite (Luzon Island, Philippines). Olivine–orthopyroxene microphyric...juvenile arc section (Barlo locality, Acoje Block) of the Zambales ophiolite. This upper volcanic unit |  | | Journal (article/letter/editorial) | | Sciences, University of the Philippines, Diliman, Quezon City 1101, Philippines, 3Monte Oro Resources and...Stock Exchange, Ortigas Center, Pasig City 1605, Philippines Abstract Well-preserved oval-shaped dunite clots...chromitites from the Coto Block of the Zambales Ophiolite Complex, the Philippines. The dunite/ chromitite boundary...Keywords: chromite-oversaturated melt, dunite, Philippines, podiform chromitite. 1. Introduction Podiform...chromitites from the Coto Block of the Zambales Ophiolite Complex, Philippines. They possibly provide us with |  | | Journal (article/letter/editorial) | | isotopic and REE constraints from the Zambales ophiolite, Philippines Peng-Fei Zhang a,b,c,⁎, Mei-Fu Zhou...Company, Inc., NAC Tower, BGC, Taguig city, Philippines b a r t i c l e i n f o Article history: Received...2021 Available online 9 January 2021 Keywords: Acoje block High-Cr chromitite Li isotopes Slab dehydration...b s t r a c t The Acoje block of the Zambales ophiolite in the Northwest Philippines is a remnant of forearc...clinopyroxene in harzburgites and dunites of the Acoje block. We use this dataset to explore the nature |  | | Journal (article/letter/editorial) | | Potential of the Amnay Ophiolitic Complex, Mindoro, Philippines Graciano P. Yumul Jr,1,2 Ferdinand T. Jumawan1...Science, University of the Philippines, Diliman, Quezon City, Philippines and 2Department of Science...Metro Manila, Philippines Abstract The Amnay Ophiolitic Complex in Mindoro, the Philippines, is considered...chromitite, fertile mantle, Mindoro, ophiolite, Philippines, South China Sea. 1. Introduction A lot of information...the surrounding oceanic marginal basins of the Philippines (e.g. Dimalanta et al., 2002; Hickey-Vargas, |  | | Book (volume) | | Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES r QE 304 . A14 1992 v.6 The Society of Resource...Book Vol. 6 MINERAL DEPOSITS OF JAPAN AND THE PHILIPPINES The Society of Resource Geology Nogizaka building...Volume 6 : Mineral Deposits of Japan and the Philippines Editors: Tetsuro Urabe and Masahiro Aoki The...Honshu 4. Mineral Deposits of Japan and the Philippines (* in Japanese) Nos. 1 - 3 are published as Guidebook...Volume 6: Mineral Deposits of Japan and the Philippines. The publications of these volumes are supported |  | | Journal (article/letter/editorial) | | CHROMITE DEPOSIT ZAMBALES, LUZON, PHILIPPINE ISLANDS BY W. C. STOLL ABSTRACT The Masinloc mine, the world's...of refractory-grade chrome ore, is at Goto, Zambales, Luzon, Philippine Islands. Ore production from 1946...dikes and overlapped by Miocene sediments. Near the mine, the complex is composed of pseudostratified gneissose...420 W. C. STOLL—MASINLOC CHROMITE DEPOSIT, PHILIPPINES into higher levels of the complex. The temperatures...Introduction and acknowledgments Country rocks Zambales ultramafic complex General statement Field relations |  | | Journal (article/letter/editorial) | | Eastern Cuba: Implications for Tectonic Settings and Platinum-Group Elemental Mineralization a b c Mei-Fu...Eastern Cuba: Implications for Tectonic Settings and Platinum-Group Elemental Mineralization, International...Eastern Cuba: Implications for Tectonic Settings and Platinum-Group Elemental Mineralization MEI-FU ZHOU, Department...refractory-grade ore. Most are of small size, the Mercedita mine being the largest, but total ore reserves are more...0.29 23.2 2.46 8.12 34.9 0.08 0.03 24.5 7.26 Platinum-group elements (ppb) 9.4 9.2 26.6 25.1 20.8 34 |  | Angeli, N., Fleet, M. E., Thibault, Y., Candia, M. A. F. (2001) Metamorphism and PGE-Au content of chromitite from the Ipanema mafic/ultramafic Complex, Minas Gerais, Brazil. Mineralogy and Petrology, 71 (3) 173-194 doi:10.1007/s007100170038 | Journal (article/letter/editorial) | | version accepted October 12, 2000 Summary The Santa Cruz massif, which forms part of the Ipanema ma®c/ultrama®c...metamorphic events, respectively. The contents of platinum-group elements (PGE) and Au in chromite separates...signi®cantly enriched ( 4x) over whole rock values. Platinum-group minerals are not observed and micrometre-sized...Ipanema Komplex, Minas Gerais, Brasilien Das Santa Cruz Massiv, das Teil des ma®schen/ultrama®schen Ipanema...(1994). Chromite and chromitites are enriched in platinum-group elements (PGE) and Au over parental magma |  | | Journal (article/letter/editorial) | | and lherzolite. The high-Cr Acoje and high-AI Coto deposits of the Philippines provide good examples of...Hock et al. 1986). Mantle peridotites hosting the Acoje deposit are more depleted in CaO and Alz0 3 and...chromite depo sits of the Acoje Block, Zambales ophiolite complex, Philippines. J. Geochem. Exp lor. 37...M.P. (1985) The origin of the fractionation of platinum-group element s in terre strial magmas. Chern...metallurgical-t ype chromite ores, Zambales ophiolite, Luzon, Philippines. Mineralium Deposita 21 : 190-199 |  | | Report (volume) | | _______________________________________________ Central America_____ __________________________________________...______________________ ______ .. ___________________________ Philippines _______ .. __________ .. ________ .. _______________________...operating organization, by T. E. Eakin: India, Central Board Geophysics, Ground Water Resources Comm....(spec. issue), 60 p., 15 illus., 1956. Parque Central, Santa Barbara, Villa Pabon landslide area, La Paz...Classification of the Gondwanic rocks of Parana, Santa Catarina and Rio Grande do Sul, by Mackenzie Gordon |  | | Journal (article/letter/editorial) | | armed conflict: nonferrous metals mining in the Philippines WILLIAM N. HOLDEN Department of Geography/Program...rjacobso@ucalgary.ca) In recent years the government of the Philippines has attempted to accelerate the growth of the...resources by multinational corporations. The Philippines is also a nation beset by armed violence carried...non-ferreux aux Philippines Dans les dernières années, le gouvernement des Philippines a pris des mesures...multinationales à exploiter ses ressources minières. Les Philippines sont un pays rongé par la violence commis par |  | Stribrny, B., Wellmer, F. -W., Burgath, K. -P., Oberthür, T., Tarkian, M., Pfeiffer, T. (2000) Unconventional PGE occurrences and PGE mineralization in the Great Dyke: metallogenic and economic aspects. Mineralium Deposita, 35 (2) 260-280 doi:10.1007/s001260050019 | Journal (article/letter/editorial) | | September 1998 / Accepted: 7 December 1999 Abstract Platinum group elements (PGE) are strategic materials because...sul®dic part and distinct dierences between the platinum group mineral (PGM) assemblages of the MSZ and...redistributions should be kept in mind during planning and mine operation. Investigations of unconventional PGE...for example from Mamut, Malaysia, Santo Tomas, Philippines, Editorial handling: F. M. Meyer B. Stribrny...PGE-producing deposits in the world. Introduction Platinum group elements (PGE) were selected as strategic |  | González-Jiménez, José María, Griffin, William L., Proenza, Joaquín A., Gervilla, Fernando, O'Reilly, Suzanne Y., Akbulut, Mehmet, Pearson, Norman J., Arai, Shoji (2014) Chromitites in ophiolites: How, where, when, why? Part II. The crystallization of chromitites. Lithos, 189. 140-158 doi:10.1016/j.lithos.2013.09.008 | Journal (article/letter/editorial) | | especially the nature and Os-isotope compositions of platinum-group minerals (PGM) and base-metal sulfides (BMS);...is significantly enriched in the incompatible platinum-group elements (PGE) with generally higher total...Introduction ED Ophiolitic chromite; chromitite origin; platinum group elements in ophiolites; mafic magma mixing;...chromitites, especially their marked differences in ED platinum-group element (PGE) abundances and patterns. Considering...Bulgarian Rhodopes (González-Jiménez et al. 2013b), and Santa Elena in Costa Rica (Zaccarini et al., 2011). Type |  | | Journal (article/letter/editorial) | | chromitites of the Sartohay ophiolite of Xinjiang Province have chromites with low Cr numbers (<70) and are...chromitites of the Sartohay ophiolite in Xinjiang Province and the 678 Downloaded by [New York University]...located in the West Junggar Mountains of Xinjiang Province, lies along the Paleo-Asiatic suture zone that...Violette, 1983), including the Zambales ophiolite of the Philippines. According to Evans and Hawkins...Hawkins (1989) the peridotites in Zambales that host the high-Al Coto deposits are less depleted than those |  | | Report (volume) | | alphabetically by author under each country or region and are indexed by subject and author. l\Iany of...----------------------------------------------Central America_________________ ______________________________...The basis for an operat.ing organization: India, Central Board Geophysics, Ground Water Resources Oomm....on Field Techniques for Mineral Investigation, Central Treaty Organization (CENTO) : Ankara, Turkey, Office...on Field Techniques for Mineral Investigation, Central Treaty Organization (CENTO): Ankara, Turkey, Office |  | | Journal (article/letter/editorial) | | deposit to another and may contain more or less Platinum Group Elements (PGE). The reasons for these variations...Albania, Guleman (Turkey), Kerman (Iran), Zambales (Philippines), Cuba, Vourinos (Greece) and Ttebaghi (New...maximum dimensions), and the Coto deposit in the Philippines (Violette, 1980) with a tonnage of 24 Mt (600...examples from New Caledonia (Leblanc, 1987) and the Philippines (Leblanc and Violette, 1983) show the variations...Several Deposits in New Caledonia and Palawan (Philippines), Showing How the Composition of Chromite Deposits |  | | Report (issue) | | Zimbabwe. • Eight industrialized countries4 that mine little or no chromite have a significant (an estimated...chromium (in the form of ores, 3 A captive mine is a mine that produces solely for the parent company...profit-motive criteria would normally result in mine closure. Chromite supplies have been disrupted....construction of a ferrochromium smelter in the Philippines (Papp, 1983, p. 209). In 1982, construction of...India; Ferroleghe SpA of Italy; Ferrochrome Philippines Inc.; Ferroaleaciones Espaiiolas S.A. of Spain; |
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