 | 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) | | the Orhaneli and Harmancık ophiolites (Bursa, NW Turkey) as evidenced by mineralogical and compositional...Trabzon, Turkey Department of Geological Engineering, Bülent Ecevit University, 67100 Zonguldak, Turkey c Department...Engineering, Recep Tayyip Erdoğan University, Rize, Turkey e Department of Earth and Environmental Sciences...Platinum-group mineral Platinum-group element Chromitite Ophiolite Turkey a b s t r a c t Chromitites from Orhaneli...Orhaneli and Harmancık ophiolites (Bursa, NW Turkey) are mainly associated with dunites. They occur as |  | Grieco, Giovanni, Bussolesi, Micol, Tzamos, Evangelos, Rassios, Annie Ewing, Kapsiotis, Argyrios (2018) Processes of primary and re-equilibration mineralization affecting chromitite ore geochemistry within the Vourinos ultramafic sequence, Vourinos ophiolite (West Macedonia, Greece) Ore Geology Reviews, 95. 537-551 doi:10.1016/j.oregeorev.2018.03.009 | Journal (article/letter/editorial) | | affecting chromitite ore geochemistry within the Vourinos ultramafic sequence, Vourinos Ophiolite (West Macedonia...affecting chromitite ore geochemistry within the Vourinos ultramafic sequence, Vourinos Ophiolite (West Macedonia...affecting chromitite ore geochemistry within the Vourinos ultramafic sequence, Vourinos Ophiolite (West Macedonia...grieco@unimi.it Abstract The Vourinos ophiolite is a complete ophiolite sequence covering an area of ~450...~450 km2, that hosts the largest chromite mining district in Europe. Chrome ore deposits range in size from |  | Kapsiotis, Argirios, Grammatikopoulos, Tassos A., Tsikouras, Basilios, Hatzipanagiotou, Konstantin, Zaccarini, Federica, Garuti, Giorgio (2011) Mineralogy, composition and PGM of chromitites from Pefki, Pindos ophiolite complex (NW Greece): evidence for progressively elevated fAs conditions in the upper mantle sequence. Mineralogy and Petrology, 101 (1) 129-150 doi:10.1007/s00710-010-0140-8 | Journal (article/letter/editorial) | | composition and PGM of chromitites from Pefki, Pindos ophiolite complex (NW Greece): evidence for progressively...2010 # Springer-Verlag 2010 Abstract The Pindos ophiolite complex, located in the northwestern part of continental...sperrylite, hollingworthite, Os-Ru-Ir alloys including osmium and rutheniridosmine, Ru-bearing oxides, braggite...has been confirmed in some Mesozoic ophiolitic chromitite occurrences (e.g. Malitch et al. 2003), indicating...fAs conditions are relatively elevated during chromitite formation (e.g. Kraubath massif, Austria; Malitch |  | | Journal (article/letter/editorial) | | for chondritic upper mantle from the Outokumpu ophiolite, Finland Richard J. Walker a’*, Eero Hanski b31...25 January 1996; accepted 9 April 1996 Abstract Osmium isotopic data for chromite, gersdorffite and laurite...upper mantle section of the 1.97 Ga Outokumpu ophiolite indicate that the mantle sources of these materials...reservoirs. Keywords: Proterozoic: Re/Os; ophiolite; chromitite: upper mantle; Outokumpu 1. Introduction...emplaced into stable cratonic settings. Complete ophiolite sequences include ultramafic sections that likely |  | | Journal (article/letter/editorial) | | Springer-Verlag 1990 Platinum-Group Mineral Inclusions in Chromitite from the Osthammeren Ultramafic Tectonite Body...platinum-group minerals (PGM) have been found in massive chromitite from the Osthammeren ultramafic tectonite (serpentinite)...have influenced the formation of these PGM. The occurrence of PGM within unaltered chromite suggests a primary...genesis of the P G M is briefly discussed. Seventy chromitite samples from nineteen ultramafic tectonite bodies...total PGE. Platinum-Group Mineral Inclusions in Chromitite II / ? ::/y / OSTHAMMEREN7 ,¢/ ~. "cO/ ~ |  | RUSKOV, T., SPIROV, I., GEORGIEVA, M., YAMAMOTO, S., GREEN, H. W., McCAMMON, C. A., DOBRZHINETSKAYA, L. F. (2010) Mössbauer spectroscopy studies of the valence state of iron in chromite from the Luobusa massif of Tibet: implications for a highly reduced deep mantle. Journal of Metamorphic Geology, 28 (5) 551-560 doi:10.1111/j.1525-1314.2010.00878.x | Journal (article/letter/editorial) | | nodular and disseminated podiform chromitite ores of the Luobasa ophiolite massif of Tibet. The results show...presence of high-pressure phases within the massive chromitite ore requires that the latter, together with its...hydrous melt, yielding the nodular and disseminated chromitite ores. The preponderance of evidence suggests...disproportionation; mantle; Mössbauer spectroscopy; ophiolite. INTRODUCTION Podiform chromitites are small...represent mantle sections of ophiolite formations. Three textural types of chromitite ores are recognized: massive |  | | Book | | A New Sulfide from the Podiform Chromitite of the Othrys Ophiolite, Greece Reprinted from: Minerals...Grammatikopoulosite, NiVP, a New Phosphide from the Chromitite of the Othrys Ophiolite, Greece Reprinted from: Minerals...Chromitites and PGE Mineralization in the Ulan-Sar’dag Ophiolite (East Sayan, Russia) Reprinted from: Minerals...Mafic–Ultramafic-Hosted Sulphides: The Pindos Ophiolite Complex Reprinted from: Minerals 2020, 10, 454...rocks, platinumgroup minerals in chromitites from ophiolite, stratiform complexes and Ural-Alaskan type intrusion |  | Auge, T., Genna, A., Legendre, O., Ivanov, K. S., Volchenko, Y. A. (2005) Primary Platinum Mineralization in the Nizhny Tagil and Kachkanar UltramaficComplexes, Urals, Russia: A Genetic Model for PGE Concentration in Chromite-RichZones. Economic Geology, 100 (4) 707-732 doi:10.2113/gsecongeo.100.4.707 | Journal (article/letter/editorial) | | the magmatic system. Two main types of chromitite occurrence are observed in the dunite body: small (100...sample). In contrast, both types of chromite occurrence are enriched in PGE. Two PGE mineralizing episodes...(Johan, 2002; Weiser, 2002). The link between the chromitite and the PGE mineralization in the original deposits...metasomatic processes in the formation of the PGE-rich chromitite; processes that also affected the host dunite...concentration and the mode of PGM collection by the chromitite. The Nizhny Tagil and Kachkanar Complexes Zoned |  | | Book | | accretionary wedge, passive continental margin, ophiolite, metamorphic, and overlap complexes (Fig. 1.1)...Neoproterozoic-Early Cambrian period is characterized by ophiolite associations formed mainly in the back-arc and...Mongolia, the eldest Shishged ultramafic massif of ophiolite complex composed of serpentinized dunite, harzburgite...with the formation of island arc and back-arc ophiolite (Khain et al. 1995, 2003; Windely 1995). The isotopic...gabbro and plagiogranite of the Bayankhongor ophiolite complex have higher values of εNd (T) from +11 |  | | Journal (article/letter/editorial) | | hostedby primitive,olivine-richcumulates.Type II chromitite occursasthicker schlierencontainingmorealuminousspineland... nucleationduring the formation of chromitite have and chromitite in ultramafic intrusions has received...economicpotentialof platinumnum-group mineral assemblagesin chromitite, in- to further assess cludingearly formedalloysand...formedalloysand disulfidesof Os, Ir, group element and chromitite occurrences. and Ru, and relativelylater formedplatinum-group...western accounting for the platinum-group mineral-chromitite Tasmania(Fig. 1). The HeazlewoodRiver Complex |  | | Book | | USA Laramie Nain, Labrador Nunavut Gardar Province Greenland Duluth Complex Minnesota, USA Duluth...J. S. Scoates and C. J. Wall of the Superior Province, Canada (O’Neil et al. 2007, 2012). The sill interiors...2002) and Paleoarchean komatiitic sills with chromitite layers are recognized in the Zimbabwe craton...Superior Province of Canada, and also include the Stillwater Complex in the Wyoming Province of southwestern...27 Ga Muskox intrusion, Mackenzie large igneous province, northern Canada, Fig. 1.1; 1.1 Ga Duluth complex |  | Yudovskaya, Marina A., Kinnaird, Judith A., Grobler, Danie F., Costin, Gelu, Abramova, Vera D., Dunnett, Tim, Barnes, Sarah-Jane (2017) Zonation of Merensky-Style Platinum-Group Element Mineralization in Turfspruit Thick Reef Facies (Northern Limb of the Bushveld Complex)*. Economic Geology, 112 (6) 1333-1365 doi:10.5382/econgeo.2017.4512 | Journal (article/letter/editorial) | | Ir-group PGE (IPGE) grades and minerals in the chromitite seams as an element of zoning has long been known...boundary with the Upper zone is marked by the first occurrence of cumulus magnetite, which forms massive magnetitites...minor anorthosite. One sulfide-rich disseminated chromitite layer 0.5-1.5 m thick is prominent in the cyclic...and is considered to be a correlate of the UG2 chromitite due to its thickness, elevated PGE grade of ~2...oikocrystic plagioclase in the sequence is the Upper chromitite, whereas pyroxenite contains intercumulus plagioclase |
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