 | 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) | | geochemistry within the Vourinos ultramafic sequence, Vourinos Ophiolite (West Macedonia, Greece) Giovanni Grieco...geochemistry within the Vourinos ultramafic sequence, Vourinos Ophiolite (West Macedonia, Greece), Ore Geology...geochemistry within the Vourinos ultramafic sequence, Vourinos Ophiolite (West Macedonia, Greece) Giovanni Grieco1*...15784, Athens, Greece. 3 Institute of Geology and Mineral Exploration, 501 00 Kozani, Greece. 4 School...Independent researcher, Ayiou Mina 31, Salamis 18900, Greece (current address). *Corresponding Author: G. Grieco |  | | Journal (article/letter/editorial) | | Institute of Geology, Goce Delcev 89, 2000 Stip, Macedonia Abstract: Several ophiolite bodies that have...chromium ore are located in the Vardar Zone of Macedonia. Three relatively small (maximum 15 4 km) bodies...concentrations. Described for the ïŹrst time in Macedonia, they are typical of ophiolitic chromitite, dominated...laurite; chromitite; ophiolite complex; Vardar Zone; Macedonia. 1. Introduction 2. Geological context Numerous...in Macedonia and in the Eastern Mediterranean region (Fig. 1). Most ophiolite bodies in Macedonia include |  | Grammatikopoulos, T. A., Kapsiotis, A., Tsikouras, B., Hatzipanagiotou, K., Zaccarini, F., Garuti, G. (2011) SPINEL COMPOSITION, PGE GEOCHEMISTRY AND MINERALOGY OF THE CHROMITITES FROM THE VOURINOS OPHIOLITE COMPLEX, NORTHWESTERN GREECE. The Canadian Mineralogist, 49 (6) 1571-1598 doi:10.3749/canmin.49.6.1571 | Journal (article/letter/editorial) | | OF THE CHROMITITES FROM THE VOURINOS OPHIOLITE COMPLEX, NORTHWESTERN GREECE Tassos A. GRAMMATIKOPOULOS§...of Rion, University of Patras, GRâ265 04 Patras, Greece Federica ZACCARINI and Giorgio GARUTI Department...Leoben, Austria Abstract The Vourinos ophiolite complex, in northwestern Greece, hosts abundant deposits...significantly in southern Vourinos (Cr#: 0.58â0.81), and less in northern Vourinos (Cr#: 0.75â0.83). Olivine...deposits of southern Vourinos have lower Mg# and Ni than those of northern Vourinos. The PGE contents vary |  | Kapsiotis, A., Grammatikopoulos, T. A., Tsikouras, B., Hatzipanagiotou, K., Zaccarini, F., Garuti, G. (2009) CHROMIAN SPINEL COMPOSITION AND PLATINUM-GROUP ELEMENT MINERALOGY OF CHROMITITES FROM THE MILIA AREA, PINDOS OPHIOLITE COMPLEX, GREECE. The Canadian Mineralogist, 47 (5) 1037-1056 doi:10.3749/canmin.47.5.1037 | Journal (article/letter/editorial) | | FROM THE MILIA AREA, PINDOS OPHIOLITE COMPLEX, GREECE Argyrios KAPSIOTIS, Tassos A. GRAMMATIKOPOULOS§...Panepistimiopolis of Rion, University of Patras, 265 04 Patras, Greece Federica ZACCARINI and Giorgio GARUTI Department...Milia area in the Pindos ophiolite complex, in Greece, were investigated for their platinum-group mineral...minerals (PGM), laurite, alloys, ophiolites, Pindos, Greece. Sommaire Nous avons Ă©tudiĂ© les chromitites de... mineralogy of chromitites, pindos ophiolite complex, greece typical of the Milia chromitites is dominated |  | Zaccarini, Federica, Economou-Eliopoulos, Maria, Kiseleva, Olga, Garuti, Giorgio, Tsikouras, Basilios, Pushkarev, Evgenii, Idrus, Arifudin (2022) Platinum Group Elements (PGE) Geochemistry and Mineralogy of Low Economic Potential (Rh-Pt-Pd)-Rich Chromitites from Ophiolite Complexes. Minerals, 12 (12) 1565 doi:10.3390/min12121565 | Journal (article/letter/editorial) | | Geoenvironment, University of Athens, 15784 Athens, Greece Sobolev Institute of Geology and Mineralogy, Siberian...rhodium (Rh), iridium (Ir), ruthenium (Ru) and osmium (Os) are known as the platinum group elements (PGE)...Therefore, PGE and in particular platinum and palladium mine production have grown continuously since the second...(Canada), Loma Caribe (Dominican Republic), Veria (Greece), OspaâKitoi, Khara-Nur and Ulan-Sarâdag (Russia)...been reported only in Skyros, Pindos and Othrys (Greece) ophiolites (Table 1 and references therein). In |  | | Journal (article/letter/editorial) | | Athens University, Panepistimiopolis, 15714 Athens, Greece Received 19 July 1995; accepted 12 July 1996 Abstract...Compilation of some new data on ophiolites for Greece and Yugoslavia, and published data from previous...platinum-group elements; chromite exploration; geochemistry; Greece 1. Introduction The geotectonic environment is...the Pindos complex and Rhodope massif ophiolites (Greece), Bay of Islands (Newfoundland) ophiolite complexes...new PGE data on chromitites and host rocks from Greece and Yugoslavia are given. These data are compared |  | | Journal (article/letter/editorial) | | subordinate laurite + osmian iridium + iridian osmium and rare laurite + IrRh alloy + Rh-rich sulphide...pressure asher (HPA-S, Anton Paar, Graz, Austria). The osmium concentration was determined by sparging the OsO4...either by solitary grains of laurite and/or iridian osmium or by polyphase groups of grains that display regular...examples of laurite + osmian iridium + iridian osmium (Fig. 4c) and rare laurite + Ir-Rh alloy + Rhrich...dominant laurite, intimately intergrown with native osmium, irarsite and Ru-rich pentlandite (Fig. 3c, d) |  | | Book | | and Memory of Dr. Demetrios G. Eliopoulos, IGME (Greece) Edited by Maria Economou-Eliopoulos, Federica...and Memory of Dr. Demetrios G. Eliopoulos, IGME (Greece) Special Issue Editors Maria Economou-Eliopoulos...Athens University of Leoben University of Leoben Greece Austria Austria Editorial OfïŹce MDPI St. Alban-Anlage...the Podiform Chromitite of the Othrys Ophiolite, Greece Reprinted from: Minerals 2020, 10, 245, doi:10...Phosphide from the Chromitite of the Othrys Ophiolite, Greece Reprinted from: Minerals 2020, 10, 131, doi:10 |  | Uysal, I., Sadiklar, M. B., Tarkian, M., Karsli, O., Aydin, F. (2005) Mineralogy and composition of the chromitites and their platinum-group minerals from Ortaca (Mu?la-SW Turkey): evidence for ophiolitic chromitite genesis. Mineralogy and Petrology, 83 (3) 219-242 doi:10.1007/s00710-004-0063-3 | Journal (article/letter/editorial) | | orogenic belt extending from the Balkans through Greece, along Southern Turkey into Iran (e.g., Engin,...mm across. Ruthenium is present as laurite, and osmium is present mainly as erlichmanite and OsâIr alloys...Ortaca chromitites (La laurite, Er erlichmanite, Os osmium, Ir iridium, n.a. not analysed, PFU per formula...distinguished from those of Rhodope, Skyros and Vourinos in Balkan Peninsula by their higher average Os...compared with PGM inclusions in chromitites of Vourinos, Skyros Island and Rhodope in Balkan Peninsula |  | | Journal (article/letter/editorial) | | are Os-free but contain tiny inclusions of native osmium. It is suggested that either the availability of...Os-Ir-Ru alloys and more rarely irarsite from the Vourinos ophiolite complex. Rh as a major component of...PGM's within the composite grain. Ruthenium- and osmium-rich minerals Laurite Laurite is the only PGM...edges and is Os-free, rarely containing native osmium inclusions. Spectral reflectance values measured...are laurite (RuS2), irarsite (IrAsS) and native osmium (Os) 180 Table 2. Analyses of laurites 1 Ru |  | GonzĂĄlez-JimĂ©nez, JosĂ© MarĂa, Gervilla, Fernando, Proenza, JoaquĂn A., AugĂ©, Thierry, Kerestedjian, Thomas (2009) Distribution of platinum-group minerals in ophiolitic chromitites. Applied Earth Science, 118 (3) 101-110 doi:10.1179/174327509x12550990457924 | Journal (article/letter/editorial) | | (chromitites from Troodos, Cyprus; Ohtrys, Vourinos and Pindos, Greece; OmaÌn, Sultanate of Oman; Mugla, Turkey...Russia Australia Canada Bulgaria Cyprus Greece Greece Greece Oman Turkey Cuba Cuba Cuba Dominican Republic...2009 VOL Dobromirtsi(*) Troodos(*) Othrys(*) Vourinos(**) Pindos(**) Oman(*) 118 Mugla(**) Moa-Baracoa(*)...obtained by different authors reporting findings in Vourinos,4,5,24,38 Pindos,36,66,75 and Kraubath and HochgroÌssen...monosulphide solid solution in chromitites from Caridad Mine, Sagua de TaÌnamo District, eastern Cuba. If the |  | Sergeev, Dmitry S., Dijkstra, Arjan H., Meisel, Thomas, BrĂŒgmann, Gerhard, Sergeev, Sergey A. (2014) Traces of ancient mafic layers in the Tethys oceanic mantle. Earth and Planetary Science Letters, 389. 155-166 doi:10.1016/j.epsl.2013.10.039 | Journal (article/letter/editorial) | | Elliott Keywords: ophiolite peridotite pyroxenite osmium isotopes mantle layering mantle heterogeneity ...found centimetre-scale heterogeneity in initial osmium isotope ratios in mantle rocks from the Pindos...2. Geological setting 2.1. The Dramala Complex, Greece We have carried out a ïŹeld and geochemical study...make up the Mesozoic Pindos Ophiolite in Northern Greece. The Dramala Complex is dominated by mantle rocks...Creaser, R.A., Shirey, S.B., Carlson, R.W., 1996. Osmium recycling in subduction zones. Science 272, 861â864 |  | Sideridis, Alkiviadis, Zaccarini, Federica, Koutsovitis, Petros, Grammatikopoulos, Tassos, Tsikouras, Basilios, Garuti, Giorgio, Hatzipanagiotou, Konstantinos (2021) Chromitites from the Vavdos ophiolite (Chalkidiki, Greece): Petrogenesis and geotectonic settings; constrains from spinel, olivine composition, PGE mineralogy and geochemistry. Ore Geology Reviews, 137. 104289pp. doi:10.1016/j.oregeorev.2021.104289 | Journal (article/letter/editorial) | | Chromitites from the Vavdos ophiolite (Chalkidiki, Greece): Petrogenesis and geotectonic settings; constrains...Materials, University of Patras, 265 04 Patras, Greece Department of Applied Geological Sciences and Geophysics...minerals Platinum-group elements Ophiolite Olivine Greece Podiform chromitites of the Vavdos ophiolite are...sulfur fugacity. 1. Introduction Ophiolites in Greece are exposed along the Mediterranean segment of...fragments of the sub-oceanic lithosphere of the western area of the Mesozoic Tethys (e.g. Rassios and Dilek |  | | Journal (article/letter/editorial) | | 15771, Greece Department of Geology and Geoenvironment, University of Athens, Athens 15784, Greece Received...mm) irregular grains. Lauriteâerlichmanite and osmiumâiridium alloy occur both as separate grains and...Temperature (°C) Ref. Othrys, Greece Vourinos, Greece Skyros, Greece Ray-Iz, Polar Urals, Russia Tropoja...Colombia Othrys, Greece Ray-Iz, Polar Urals, Russia Freetown, Sierra Leone Russia Vourinos, Greece Ethiopia Vourinos...Vourinos, Greece Tropoja, Albania Ray-Iz, Polar Urals, Russia SED, Egypt Bulqiza, Albania Durance river |  | Proenza, J.A., Zaccarini, F., Escayola, M., CĂĄbana, C., Schalamuk, A., Garuti, G. (2008) Composition and textures of chromite and platinum-group minerals in chromitites of the western ophiolitic belt from Pampean Ranges of CĂłrdoba, Argentina. Ore Geology Reviews, 33 (1) 32-48 doi:10.1016/j.oregeorev.2006.05.009 | Journal (article/letter/editorial) | | platinum-group minerals in chromitites of the western ophiolitic belt from Pampean Ranges of CĂłrdoba...Chromitite bodies hosted in the Neoproterozoic western ophiolitic belt of Pampean Ranges of CĂłrdoba (Argentina)...group minerals (PGM) identified include native osmium, laurite, erlichmanite, irarsite, platinum and...telluride, IrâRuâAsâSe and IrâRuâTi compounds. Native osmium was the only PGM which remained unaltered; other...migmatites and gneisses that surround them. The western ophiolitic belt, Fig. 2. Geological map of the |  | | Journal (article/letter/editorial) | | Palaeozoic gneisses and amphibolites along its western contact and is unconformably covered by continental...55â80° to the south, but deviates slightly near the western contact, becoming vertical and parallel to such...chromite, 10â15: laurite in silicate matrix, 16: osmium in unaltered chromite. 0.00 0.00 0.00 0.00 0.00...and to the silicate matrix (44%). In addition: osmium, iridium and Ir-sulïŹde occurs only in unaltered...(C) euhedral laurite (L) with a minute crystal of osmium (Os) attached. (D) biphase inclusion made up of |  | | Journal (article/letter/editorial) | | layered sequence is probably exposed at the south western edge of the intrusion, at the base of the Cascabulhos...correlation of major chromitite layers across four mine sections at the investigated localities (modified...With the exception of samples from the Pedrinhas mine which contain serpentine as the major interstitial...serpentinization of intercumulus olivine (Pedrinhas mine). B Moderately altered chromite grains in strongly...strongly chloritized chromitite (Cascabulhos mine): unaltered chromite (dark core) is replaced by compact |  | | Journal (article/letter/editorial) | | types of spinel. 601 Platinum-group alloys An osmiumâiridium alloy is the most common of the PGE alloys...PGE oxides was recognized in chromitite from the Vourinos ophiolite (Garuti & Zaccarini 1997). Laurite and...36Ru0.03 Fe0.03). The alloy is comparable to the osmiumâiridium series reported from various localities...Urals, Russia (Garuti et al. 1997), and laurite of Vourinos complex (AugĂ© 1988). Note the similarity in element...deep-seated mantle chromitites in ophiolites such as Vourinos, Greece (AugĂ© 1988, Garuti & Zaccarini 1997), Rhodope |  | GonzĂĄlez-JimĂ©nez, JosĂ©M., Gervilla, Fernando, Proenza, JoaquĂn A., Kerestedjian, Thomas, AugĂ©, Thierry, Bailly, Laurent (2009) Zoning of laurite (RuS2)erlichmanite (OsS2): implications for the origin of PGM in ophiolite chromitites. European Journal of Mineralogy, 21 (2) 419-432 doi:10.1127/0935-1221/2009/0021-1921 | Journal (article/letter/editorial) | | chromitites: six in the Monte Bueno Mine, one in the Caridad Mine, and three in the Ultramafic Dobromirtsi...District (Table 1). The grains from Monte Bueno Mine exhibit oscillatory zoning, represented by alternating... 5/5â8 Os-laurite/laurite Os-laurite/laurite Osmium Reverse Oscillatory 2d, 5/10â19 422 J.M. GonzaÌlez-JimeÌnez...Complex oscillatory zoned grains from the Monte Bueno Mine. Note that alternating bands of Os-poor and Os-rich...2a, b). Another zoned grain from the Monte Bueno Mine is described by Gervilla et al. (2005) (Table 2) |  | Gervilla, F., Proenza, J.A., Frei, R., GonzĂĄlez-JimĂ©nez, J.M., Garrido, C.J., Melgarejo, J.C., Meibom, A., DĂaz-MartĂnez, R., Lavaut, W. (2005) Distribution of platinum-group elements and Os isotopes in chromite ores from MayarĂ-Baracoa Ophiolitic Belt (eastern Cuba) Contributions to Mineralogy and Petrology, 150 (6) 589-607 doi:10.1007/s00410-005-0039-2 | Journal (article/letter/editorial) | | Philippines (Bacuta et al. 1990), the Vourinos Complex in Greece (Konstantopoulou and Economou 1991),...2000; Matveev and Ballhaus 2002; Mungall 2002). Osmium isotopic data indicate that most ophiolitic chromitites...ubiquitous. The MayarÄ±Ì district is located in the western part of the MayarıÌCristal massif and includes...websterite dikes. With the exception of the Prudencio mine, olivine and their alteration products (serpentine...phases interstitial to chromite. At the Prudencio mine the interstitial silicates are orthopyroxene and |  | | Journal (article/letter/editorial) | | 15771, Greece Department of Geology and Geoenvironment, University of Athens, Athens 15784, Greece Received...located along a shear zone in the Veria area of Greece has been attributed to post-magmatic processes... Mineral Description Othrys, Greece Vourinos, Greece Skyros, Greece Ray-Iz, Polar Urals, Russia Tropoja...Inclusion in chromite 1â20 Nevado, Colombia Othrys, Greece Ray-Iz, Polar Urals, Russia Freetown, Sierra Leone...intrusion Alaskan-type Erlichmanite Vourinos, Greece Ethiopia Vourinos, Greece Tropoja, Albania Ray-Iz, Polar |  | | Journal (article/letter/editorial) | | mm in size. The PGM mineralogy includes laurite, osmium, irarsite and RuâFe oxide or hydroxide. Based on...ophiolitic chromitites from Cuba (Proenza et al., 1999), Greece, Bulgaria (Economou Eliopoulos, 1996), Cyprus (McElduff...irarsite ĂŸ osmium Irarsite Laurite ĂŸ osmium ĂŸ heazlewoodite ĂŸ NiO Irarsite Laurite Laurite ĂŸ osmium Irarsite...Irarsite ĂŸ heazlewoodite Osmium Laurite ĂŸ Ru oxide (?) Laurite Laurite Laurite ĂŸ osmium ĂŸ heazlewoodite Laurite...Laurite ĂŸ osmium Laurite ferrian chromite chromite ferrian-chromite ferrian chromite-chlorite ferrian |  | Idrus, Arifudin, Septiana, Sara, Zaccarini, Federica, Garuti, Giorgio, Hasria, Hasria (2022) Mineralogical, Textural and Chemical Characteristics of Ophiolitic Chromitite and Platinum Group Minerals from Kabaena Island (Indonesia): Their Petrogenetic Nature and Geodynamic Setting. Minerals, 12 (5) 516 doi:10.3390/min12050516 | Journal (article/letter/editorial) | | sulfur fugacity below sulfur saturation. Iridiumâosmium alloys are secondary in origin and represent a...srp = serpentine, olv = olivine, Ir-Os = iridiumâosmium alloy, and awr = awaruite. They differ only because...serpentine, olv =Island olivine, Ir-Os = iridiumâosmium of Aalloy, (B). Abbreviations: = chromite, srp...srp = serpentine, olv = matrix olivine, = iridiumâosmium alloy, awaruite, analyzed EDS,chr have also been...with the chromitites of the Vourions ophiolite, Greece, was estimated to be below 445 ⊠C [68]. The presence |  | | Journal (article/letter/editorial) | | various types of spinels from the Vourinos ophiolitic complex, Greece A. COCHERIE 1, T. AUGl~' 1 and G...various types of spinels from the Vourinos ophiolitic complex, Greece. Chem. Geol., 77: 27-39. Samples...spinel from three different environments in the Vourinos ophiolitic complex were analysed for the platinum-group...1985) on the chromitites from the Vourinos ophiolitic complex, Greece, and on the disseminated chromites...of the studied samples The Vourinos complex, located in northwestern Greece, exhibits an almost complete |  | Uysal, Ibrahim, Akmaz, Recep Melih, Kapsiotis, Argyrios, Demir, Yılmaz, Saka, Samet, Avcı, Erdi, MĂŒller, 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) | | RuâNiâFe sulïŹde, irarsite, hollingworthite, native osmium and iridium. Millerite and pentlandite represent...followed by ICP-MS at Genalysis Laboratory, Perth, Western Australia following the method described by Chan...2009). The Orhaneli ophiolite, situated in the western part of the IzmirâAnkaraâErzincan Suture Zone (IAESZ)...(Ahmed et al., 2012), the chromitites at the Ranomena mine, Toamasina district, Madagascar (Grieco et al.,...hollingworthite, unidentiïŹed RuâNiâFe sulïŹdes, native osmium and iridium. These PGM species are essentially |
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