 | 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) | | 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) | | COEXISTING OLIVINE AND PYROXENES FROM THE ACOJE ULTRAMAFICS, PHILIPPINES TERUYUKI TAKEDA and HITOSHI ONUKI...their olivines and pyroxenes from the Acoje mine, Philippines were chemically studied. From the data...data based on the pyroxene grid the Acoje peridotites seem to be recrystallized under conditions prevailing...peridotites. fic rocks INTRODUCTION The Zambales Philippines, western coast Bataan Peninsula, 180•~35...by sandstone and south rocks of Tertiary Zambales dunite, have serpentinization, about Range |  | | Journal (article/letter/editorial) | | Spfinger-Verlag1989 Zambales ophiolite, Philippines II. Sulfide petrology of the critical zone of the Acoje Massif...USA Abstract. The Acoje massif is part of a mafic-ultramafic complex, the Zambales ophiolite, and is...associated phases in the critical zone of the Acoje massif. The Acoje critical zone (ACZ) forms the basal cumulate...occurred during retrograde serpentinization of the Acoje massif. Two end-member models that could explain...zone of the Acoje massif, Zambales ophiolite, Philippines (Abrajano et al. 1989). The Acoje critical zone |  | | Journal (article/letter/editorial) | | serpentinization. Variably serpentinized peridotites from the Santa Elena Ophiolite in Costa Rica contain an unusual...magnetite, awaruite, pyrrhotite, heazlewoodite, violarite, smythite and copperbearing sulfides (Cu-pentlandite...We suggest that the peridotites today exposed on Santa Elena preserve the lower section of an ancient hydrothermal...copper · Sulfides · Peridotite · Serpentinization · Santa Elena Ophiolite Introduction Serpentinization is...between Earth’s surface and Earth’s mantle. On the Santa Elena peninsula in Costa Rica, variably serpentinized |  | | Journal (article/letter/editorial) | | awaruite, heazlewoodite, pentlanditc,millerite, and violarite but few, if any, iron sulfides. Using the Dumont...of opaquemineral 183 is part if the Superior Province of Archean age. The ultramaficbody(Fig. 1) is...pentlandite, py = pyrite, tr = troilite, vl: violarite, vs = vaesite. 8 In the subsequent analysisthe...seem essentialto the present argument. Only the violarite of apparent "hydrothermal" origin is included;...pyrite, qtz -- quartz, sp = serpentine, vl = violarite.) Opaque mineral assemblages Nonopaque mineral |  | | Report (volume) | | Polydymite, millerite, siegenite, bravoite, and violarite. Nickell. is also found combined with arsenic... Indonesia, and the Philippines. · Most of the laterite in Cuba, the Philippines, and Indonesia is of...ni~kel silver deposit of the Akol Minussinsky region: Acad. Sci. U. R. S. S. Bull., Ser. ~eol. no. 2...15 p. -.- - 1917, Large pyrrhotite deposits in central Maine: Eng. Mining. Jour., ·v. 104, no. 17, p....p. 125-133. Bj~rlykke, Harald, 1947, Flat nickel mine: Norges Geol. Unders9Skelse 168b, 39 p. - - - '1949 |  | | Book | | born hills appear parallel to Mahagiri range due to mine-waste dumping. Unpaved roads serve the movement...The sky is gloomy throughout the day due to the mine and road dust. Social evils, crime, alcoholism,...education, counseling, and training. Making stringent mine-safety rules is not the solution—it has to be implemented...Ore Group Orissa Mining Corporation Limited Run of Mine Reconnaissance Permit tonnes tonnes per annum/day...States, Australia, Africa, Brazil, New Caledonia, Philippines, Indonesia, and the Caribbean. The largest chromite |  | | Journal (article/letter/editorial) | | 15%) inferred for the upper mantle in the MARK region of the Mid-Atlantic Ridge (Karson et al., 1987;...millerite; Mw ⫽ mackinawite; Aw ⫽ awaruite; Vi ⫽ violarite; Mt ⫽ magnetite. b The weathering index is 100...Pasteris, 1989). Seafloor weathering produced violarite and hydrous iron hydroxides, both replacing pentlandite...hydroxides; Aw ⫽ awaruite; Mt ⫽ magnetite; Vi ⫽ violarite; Incl ⫽ inclusion; Intergr ⫽ intergranular; n... 1989, and references therein). In contrast, violarite and hydrous iron hydroxides are stable under the |  | | Report (issue) | | held at the Geological Society of America South-Central Section meeting, Apr. 15-16, 1985, Fayetteville...1952— III. Geological Society of America. South-Central Section. IV. Symposium on Alkalic Rocks and Kimberlites...Evidence from basal cumulate rocks in the Zambales ophiolite, Luzon, Philippine Islands . Cynthia A. Evans...Hugo T. Dummett The Cretaceous Arkansas alkalic province; A summary of petrology and geochemistry . 217...nephelinite to phonolite magmatism in the Balcones province, Texas . 293 D. S. Barker, R. H. Mitchell, and |  | | Journal (article/letter/editorial) | | exception to this is the Acoje Ni sulfide deposit in the Zambales ophiolite of the Philippines (Naldrett, 2004)...52 (2013) 4–17 5 Sheffield Region Rocky Cape Region Mathinna Region Avebury ? ? X Dundas Trough...Trough hosts ophiolites AdamsfieldJubilee Region Tyennan Region Fig. 1. Geology of Tasmania, showing the...the deposits of the Zeehan–Dundas field. The Magnet Mine was the largest known of this type at 630,000 t...mineralized zones are also present, including the Central and East Avebury bodies, and the Saxon, Seymour |  | Suárez, Saioa, Prichard, Hazel M., Velasco, Francisco, Fisher, Peter C., McDonald, Iain (2010) Alteration of platinum-group minerals and dispersion of platinum-group elements during progressive weathering of the Aguablanca Ni–Cu deposit, SW Spain. Mineralium Deposita, 45 (4) 331-350 doi:10.1007/s00126-009-0275-x | Journal (article/letter/editorial) | | Ni, 0.46% Cu, 0.47 g/t PGE and 0.13 g/t Au. The mine has an estimated production life of 10.5 years based...development. At present, the annual production of the mine is approximately 8,136 t of Ni and 7,071 t of Cu...Aguablanca Stock, along the northeastern part the Santa Olalla plutonic complex (Fig. 1). This is a small...and pyrite with minor marcasite, covellite and violarite. Magnetite and ilmenite are often present, and...pyrrhotite and pentlandite and is limited to the central core of the southern orebody; (b) disseminated |  | Arai, Shoji, Ishimaru, Satoko, Miura, Makoto, Akizawa, Norikatsu, Mizukami, Tomoyuki (2020) Post-Serpentinization Formation of Theophrastite-Zaratite by Heazlewoodite Desulfurization: An Implication for Shallow Behavior of Sulfur in a Subduction Complex. Minerals, 10 (9) 806 doi:10.3390/min10090806 | Journal (article/letter/editorial) | | in ultramafic rocks [65], may be decomposed to violarite (FeNi2 S4 ), possibly with iron-rich sulfides...sulfides (or oxides) during the may be decomposed to violarite (FeNi2S4), possibly with iron-rich sulfides (or... J.D. Zambales ophiolite, Philippines II. Sulfide petrology of the critical zone of the Acoje Massif...Otwayite and theophrastite from the Lord Brassey Mine, Tasmania. Mineral. Mag. 1992, 56, 252–255. [CrossRef]...mafic-ultramafic complex in the Sanbagawa metamorphic belt of central Shikoku 1. Petrochemistry and rock-forming mineralogy |  | | Journal (article/letter/editorial) | | lesser extent pentlandite, and very rarely pyrite. Violarite, polydymite and heazlewoodite form the secondary...the Arabian Platform. The ophiolites in the nappe region commonly demonstrate a polyphase metamorphism;...the most significant ophiolite in the investigated region. It consists of both metamorphosed and unmetamorphosed...nonmetamorphic rocks are observed in the Doğanşehir region (Malatya) (Parlak et al., 2009 and references therein)...78 wt.% Ni and 21.17–21.31 wt.% Fe (Table 5). Violarite, polydimite, and rarely heazlewoodite were identified |  | Kozlu, Hatice, Prichard, Hazel, Melcher, Frank, Fisher, Peter, Brough, Christopher, Stueben, Doris (2014) Platinum group element (PGE) mineralisation and chromite geochemistry in the Berit ophiolite (Elbistan/Kahramanmaraş), SE Turkey. Ore Geology Reviews, 60. 97-111 doi:10.1016/j.oregeorev.2013.12.011 | Journal (article/letter/editorial) | | Scotland (Prichard et al., 1986), Acoje in Zambales in the Philippines (Bacuta et al., 1990), 98 H....these may also be altered to bornite, pyrrhotite, violarite and PGM. Two of these spherical BMS composites...attributed to retention of sulphide in the source region by Hamlyn et al. (1985) who proposed that MORB...melts that are able to migrate out of their source region (Kocks et al., 2007). The deposition of layered...chromite deposits of the Acoje block, Zambales ophiolite complex, Philippines. J. Geochem. Explor. 37 |  | Uysal, Ibrahim, Akmaz, Recep Melih, Kapsiotis, Argyrios, Demir, Yılmaz, Saka, Samet, Avcı, Erdi, Müller, Dirk (2015) Genesis and geodynamic significance of chromitites from the Orhaneli and Harmancık ophiolites (Bursa, NW Turkey) as evidenced by mineralogical and compositional data. Ore Geology Reviews, 65. 26-41 doi:10.1016/j.oregeorev.2014.08.006 | Journal (article/letter/editorial) | | magnesiochromite, whereas bornite, awaruite, heazlewoodite, violarite and orcelite are mostly observed in the secondary...(Ahmed et al., 2012), the chromitites at the Ranomena mine, Toamasina district, Madagascar (Grieco et al.,...bornite, chalcopyrite, awaruite, heazlewoodite, violarite, orcelite, godlevskite and an unidentified BMM...magnesiochromite. Bn: bornite, Mlr: millerite, Vlr: violarite, Hzl: heazlewoodite, Awr: awaruite, Pn: pentlandite...melt contained more Os, compared to the source region of the melt that led to the formation of the Harmancık |  | Jiménez–Franco, Abigail, González–Jiménez, José M., Roqué, Josep, Proenza, Joaquín A., Gervilla, Fernando, Nieto, Fernando (2020) Nanoscale constraints on the in situ transformation of Ru–Os–Ir sulfides to alloys at low temperature. Ore Geology Reviews, 124. 103640pp. doi:10.1016/j.oregeorev.2020.103640 | Journal (article/letter/editorial) | | purpose of this study we selected the Monte Bueno Mine in the eastern Cuban ophiolites, a well–characterized...effects because laurite-erlichmanite grains at this mine have been modified by serpentinization-related fluids...sequence, of decreasing fS2 in the mantle source region, which would promote the breakdown of PGE–bearing...massive–textured chromitites collected from the central part of the ore body. They are virtually unaffected...HRTEM investigations carried out at the deepest region of the FIB thin-foil (i.e., square 3 shown in Fig |  | | Journal (article/letter/editorial) | | 1991), and in the cumulate sequence (e.g. Acoje, Philippines; Orberger et al., 1988). Small sizes, low...Sanandaj–Sirjan Zone. The inner or northern sub-belt (Central Iran type), represented by extensive Coloured Mélange...Mélange zones, is located around the Central Iranian micro-continent and includes the Sabzevar, Nain-Baft...width in the Esfandagheh district of the Kerman province, constituting Iran's second largest chromite producer...Dunite 2821569 5644563 49–50 Dunite No. Massif Mine/ prospect North 1 Neyriz 2922745 5410411 2–4 |  | | Book | | Bougainville), and Fiji. Cyprus, Ceylon, the Philippines, and Japan are included with Asia. In South Africa...Cyprus India Indonesia Iran Japan Korea Malaya Philippines... Turkey 2 1 1 4 1 1 5 1 1 2 2 21 Australia...(and older titles) Mineral Resources of South-Central Africa (Pelletier) (no abbreviation) Mineralium...50, p. 164-168 Heim, Α., 1 9 3 4 , The molybdenum mine at Azegour: Soc. Econ. Geol., v. 29, p. 76-83..., Allanite et epidote dans des corneennes de la mine d'Azegour, Haut-Atlas: Serv. Geol. Maroc. Notes |  | | Journal (article/letter/editorial) | | Western Terrane, the South-Eastern Terrane, the Central Terrane and the Pietermaritz Terrane (de Wit et...kimberlite pipes of the Kimberley area (De Beers Mine; Bultfontein, Kimberley, South Africa) and Jagersfontein...(after Griffin et al. 2003a); K Kimberley (Premier Mine, De Beers); J Jagersfontein; Northern Lesotho (Thaba...Bultfontein KBD 4 (S) De Beers mine BG2 (S) Kimberley mine BG (S) Kimberley mine Texture Coarse-granular...even in porphyroclastic samples (KBD4, De Beers Mine). Neither SI nor intergranular 0.10 0.09 sulfide |  | | Journal (article/letter/editorial) | | the recent literature are located in the Ariege region, east of the Tuc d'Esse and Arguenos localities...have been identified, except for native sulphur. Violarite, bravoite, millerite, covellite, and smythite...studied in protogranular lherzolites from the central and southern bodies of the Lanzo massif are intimately...this reservoir was probably deeper than the source region of the peridotites. The similarity of Cu/S ratios...these melts had not moved far from their source region. Hence, the very low sulphur contents of the Lanzo |  | | Journal (article/letter/editorial) | | heazlewoodite, millerite, pentlandite, valleriite, and violarite (Abrajano and Pasteris, 1989; Alt and Shanks,...(1989) Zambales ophiolite, Phillippines: II. Sulfide petrology of the critical zone of the Acoje Massif...(1988) Methane-hydrogen gas seeps, Zambales ophiolite, Philippines: Deep or shallow origin? Chem. Geol...related to serpentinization of the Zambales Ophiolite, Philippines. Appl. Geochem. 5, 625– 630. Alt J...blackwall and rodingite at Paddy-Go-Easy Pass, central Cascades, Washington. J. Petrol. 16, 272–313. Frost |  | | Journal (article/letter/editorial) | | superlattice structure observed in synthetic alloys in the region FeNi3 (Hansen & Anderko, 1958) and is not a simple...on materials from Gap Mine, Lancaster County, Pennsylvania, and from Viktoria Mine, Littfeld, Westfalen...member of the linnaeite series (Co3S4) of which violarite (Ni2FeS4) is also a member (Palache, Berman, &...with Ni3S4 (Erd, Evans, & Richter, 1957), and violarite may represent approximately the maximum amount...the existence of two phases in this compositional region, the more sulfur-rich phase Ni7S6 breaking down |  | | Report (issue) | | August 1986, the development of a major new platinum mine was announced in South Africa (E.C.I. Hammerbeck...chromitite layer are to be exploited in the new mine to a depth of 2,700 meters below the surface. This...discovered at Coronation Hill, in the Alligator Rivers Region of the Northern Territory (Australian Bureau of...The deposit and other similar prospects in that Region are still being tested. Resources of contained...-----------------5. Proportions of total vvorld mine production of platinum-group metals accounted for |  | | Report (issue) | | Chemical composition_-------------Cape of Good Hope Province ____ ------------ 1 2 4 5 5 9 11 11 12 14...atinum placers _______ -------- ___ _ Narifio Province---------------------------Chemical analyses ___...Lodes--------------------------------Salt Chuck mine ___________________ _ Placers------------------...Complex_ ___________________ _ Green ~ountain copper mine ___________ _ Placers _______________________________...------------_--_ Platinum metals in ores from Falconbridge mine, Subdury district ________ -_-- _________ ---_---- |
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