 | González-Jiménez, José María, Locmelis, Marek, Belousova, Elena, Griffin, William L., Gervilla, Fernando, Kerestedjian, Thomas N., O'Reilly, Suzanne Y., Pearson, Norman J., Sergeeva, Ivanina (2015) Genesis and tectonic implications of podiform chromitites in the metamorphosed ultramafic massif of Dobromirtsi (Bulgaria) Gondwana Research, 27 (2) 555-574 doi:10.1016/j.gr.2013.09.020 | Journal (article/letter/editorial) | | in the metamorphosed ultramafic massif of Dobromirtsi (Bulgaria) José María González-Jiménez a,⁎, Marek...of Sciences, 24 Georgi Bonchev Str., 1113 Sofia, Bulgaria b a r t i c l e i n f o Article history: Received...chromitites occur in the meta-dunite horizon of the Dobromirtsi ultramafic massif, in the Central Rhodope metamorphic...metamorphic core complex (southern Bulgaria). Although these were deformed and metamorphosed together with...laurite (RuS2), Os–Ir alloys and sulfarsenides (irarsite, IrAsS), exhibit a wide range of 187Os/188Os (from |  | | Journal (article/letter/editorial) | | Ophiolite Chromitites from the Dobromirtsi Massif, Rhodope Mountains (Bulgaria) José María González-Jiménez...Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria and 3Departament de Cristal·lografia, Mineralogia...Abstract The Dobromirtsi Ultramafic Massif, located in the Rhodope Mountains (SE Bulgaria), is a portion...other ophiolite chromitites, those found in Dobromirtsi carry abundant platinum-group minerals (PGM)...(laurite RuS2-erlichmanite OsS2, Os-Ru-Ir alloys, irarsite [IrAsS], Ru-rich pentlandite, and an unknown Ir-sulfide) |  | González-Jiménez, JoséM., Gervilla, Fernando, Proenza, Joaquín A., Kerestedjian, Thomas, Augé, 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) | | Sciences, 24 Georgi Bonchev Str., 1113 Sofia, Bulgaria 4 BRGM (Bureau de recherches géologiques et minières)...Cuba) and in the Dobromirtsi metamorphosed ultramafic (ophiolitic) massif (SE Bulgaria) with regard to...magma mixing, Mayarı́.Baracoa Ophiolite Belt, Dobromirtsi Ultramafic Massif. 1. Introduction The platinum-group...chromitites of the Dobromirtsi Ultramafic (ophiolite) Massif in the Rhodope Mountains (SE Bulgaria) is a good...chromitite occurrences from the Dobromirtsi Ultramafic Massif in SE Bulgaria (Tarkian et al., 1991; Kerestedjian |  | González-Jiménez, José María, Gervilla, Fernando, Proenza, Joaquín A., Augé, 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) | | Sciences, 24 Georgi Bonchev Str., 1113 Sofia, Bulgaria 2 *Corresponding author, email jmgonzj@ugr.es...Tehuitzingo, Mexico; Ray-Iz, Rusia; and Dobromirtsi, Bulgaria), Mesozoic ophiolitic complexes (chromitites...Scotland Austria Austria Russia Australia Canada Bulgaria Cyprus Greece Greece Greece Oman Turkey Cuba...Min. Metall. B) Thetford Mines(*) 2009 VOL Dobromirtsi(*) Troodos(*) Othrys(*) Vourinos(**) Pindos(**)...from chromitites of the Dobromirtsi Ultramafic Massif (southeastern Bulgaria). C and D from chromitites |  | González-Jiménez, José María, Griffin, William L., Gervilla, Fernando, Proenza, Joaquín A., O'Reilly, Suzanne Y., Pearson, Norman J. (2014) Chromitites in ophiolites: How, where, when, why? Part I. A review and new ideas on the origin and significance of platinum-group minerals. Lithos, 189. 127-139 doi:10.1016/j.lithos.2013.06.016 | Journal (article/letter/editorial) | | and 9 are from chromitites of the Dobromirtsi Ultramafic Massif, Bulgaria; 3–5 and 8 are from the chromitites...Laurite–erlichmanite (18%), Os–Ir–Ru alloys (13%) and irarsite (11%) are also the most abundant Os–Ir–Ru minerals...around larger grains of laurite–erlichmanite or irarsite, which may also show inner radial cracks or spongy...in Argentina (Proenza et al., 2008) or Dobromirtsi in Bulgaria (González-Jiménez et al., 2010). The higher...chromitites: laurite–erlichmanite, Os–Ir–Ru alloys and irarsite. As observed in Type I chromitites, when these |  | | Journal (article/letter/editorial) | | the chromite deposits of the Dobromirtsi Massif (southern PT Bulgaria). The final example was chosen...inclusions of micrometer-sized PGMs (laurite (RuS2), irarsite (IrAsS), AC cuproiridsite (CuIr2S4)) coexisting...Os-Ir-Ru minerals (i.e., laurite-erlichmanite and irarsite) are hosted in chromite grains of the Caridad...chromite deposits of the CE Dobromirtsi Ultramafic Massif (southern Bulgaria): primary origin and effects...Tertiary Rhodope Metamorphic Core Complex in southern Bulgaria and northern Greece contains numerous slivers |  | | Journal (article/letter/editorial) | | clinopyroxenite-dunite complexes located within the Aldan Province, in the southeastern part of the Siberian Craton...erlichmanite (OsS2), hollingworthite (RhAsS), irarsite (IrAsS), platarsite (PtAsS), sperrylite (PtAs2)...braggite (Pt,Pd)S, na keithconnite (Pd20Te7), irarsite (IrAsS), malanite (CuPt2S4), mertieite II (Pd8Sb2...erlichmanite (OsS2), hollingworthite (RhAsS), irarsite (IrAsS), platarsite (PtAsS), sperrylite (PtAs2)...tulameenite, sobolevskite, braggite, keithconnite, irarsite, malanite, mertieite II, and a number of unnamed |  | Derbyshire, E.J., O'Driscoll, B., Lenaz, D., Gertisser, R., Kronz, A. (2013) Compositionally heterogeneous podiform chromitite in the Shetland Ophiolite Complex (Scotland): Implications for chromitite petrogenesis and late-stage alteration in the upper mantle portion of a supra-subduction zone ophiolite. Lithos, 162. 279-300 doi:10.1016/j.lithos.2012.11.013 | Journal (article/letter/editorial) | | the SOC include laurite [(Ru,Os)S2], PGM of the irarsite-hollingworthite series [(Ir,Ru,Rh,Pt)AsS] together...Lithos xxx (2013) xxx–xxx (b) (a) FCr Ni-As SCr Irarsite SCr Ru-Fe-S FCr (c) (d) Sperrylite Sperrylite...the Shetland chromitite seams. (a) Small (15 µm) irarsite grain in the serpentinised groundmass between...of irarsite and one grain of laurite were also analysed from Cliff chromitite seams. Two irarsite grains...d, and 11b,c). Other PGM at Cliff include one irarsite grain and one Ru–Fe–S grain (Fig. 8a,b). The Hagdale |  | González-Jiménez, J.M., Proenza, J.A., Gervilla, F., Melgarejo, J.C., Blanco-Moreno, J.A., Ruiz-Sánchez, R., Griffin, W.L. (2011) High-Cr and high-Al chromitites from the Sagua de Tánamo district, Mayarí-Cristal ophiolitic massif (eastern Cuba): Constraints on their origin from mineralogy and geochemistry of chromian spinel and platinum-group elements. Lithos, 125 (1) 101-121 doi:10.1016/j.lithos.2011.01.016 | Journal (article/letter/editorial) | | of the Sagua de Tánamo district. Laurite: 1–5, irarsite–hollingworthite: 6–10, iridium: 11–12, Ru–Os–Ir–Fe–Ni–(Rh)...solid solution series, 15% are members of the irarsite (IrAsS)-hollingworthite (RhAsS) solid solution...systematically lower S and Os. Sulpharsenides of the irarsite-hollingworthite solid solution series in the unaltered...composition of the sulpharsenides varies from Ru-rich irarsite [(Ir0.87Ru0.06Rh0.03Os0.02Fe0.01)0.98As0.86S1...01Os0.01)1.05As0.73S1.22] (Fig. 10b and Table 5). Irarsite grains in the unaltered cores of chromian spinel |  | | Journal (article/letter/editorial) | | platinum-group minerals (PGM) such as sperrylite and irarsite, respectively. The high (>1 ppm) bulk rock concentrations...sperrylite (PtAs2), stibiopalladinite (Pd5Sb2) and irarsite ([Ir,Ru,Rh,Pt]AsS), with subordinate laurite (RuS2)...Cu and Pt present in up to wt.% concentrations. Irarsite contains sub wt.% levels of Cu, Fe and Sb. The...sequence of parageneses, and there is overlap between irarsite, sperrylite and stibiopalladinite in Ni versus...increasing Cu with Pt (Fig. 6e) and sperrylite and irarsite show a negative correlation between Sb and As |  | | Journal (article/letter/editorial) | | euhedral laurite crystals, followed by subsidiary irarsite and trivial amounts of Os–Ir alloy grains. PGM...massively dominated by laurite, followed by subsidiary irarsite and subordinate Os–Ir alloys. All the PGM phases...phases including amphibole, olivine, (Fig. 4e) and irarsite. Lastly, planar laurite inclusion trails in unaltered...crystal was located in a crack within a Cr-spinel. Irarsite contained 35.49 wt.% Ir and 10.50 wt.% Rh. The...chromite ores from the Dobromirtsi ultramafic massif, Rhodope mountains (SE Bulgaria). Geologica Acta 7, |  | 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) | | by erlichmanite, unidentified Ru–Ni–Fe sulfide, irarsite, hollingworthite, native osmium and iridium. Millerite...IPGE-rich phases namely laurite, erlichmanite, irarsite, hollingworthite, unidentified Ru–Ni–Fe sulfides...Os mainly occurs as erlichmanite. Iridium forms irarsite and is also carried in solid-solution in laurite–erlichmanite...Rhodium is present mainly in hollingworthite and in irarsite. Ru–Os disulfides such as laurite and erlichmanite...of irarsite and laurite are included in ferrian magnesiochromite. Subhedral to euhedral irarsite crystals |  | Kutyrev, Anton V., Sidorov, Evgeniy G., Kamenetsky, Vadim S., Chubarov, Valery M., Chayka, Ivan F., Abersteiner, Adam (2021) Platinum mineralization and geochemistry of the Matysken zoned Ural-Alaskan type complex and related placer (Far East Russia). Ore Geology Reviews, 130. 103947pp. doi:10.1016/j.oregeorev.2020.103947 | Journal (article/letter/editorial) | | likely replacing it (Fig. 9e). Sperrylite and irarsite may often be found in fractures indicating a late...associated with this type include hollingwhortite, irarsite (Fig. 9h), geversite (Fig. 9k) and Cu-Pt alloys...Arsenides and sulfarsenides are represented by irarsite and subordi nate sperrylite. Cases where their...are scarce. Irarsite corresponds compositionally to the intermediate member of the irarsite IrAsS – platarsite...ferronickelplatinum, Hwt – hollingwhortite, Irs – irarsite), (j) – pentlandite substituted by a microaggregate |  | 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) | | Nanoparticles Laurite-erlichmanite Pentlandite Irarsite Os-Ir-Ru alloys Focused-ion beam (FIB) Transmission...2g–i). In addition, this grain also has a minute irarsite (IrAsS) (< 1 μm) crystal attached to at the grain...idiomorphic surrounding rims and the attached irarsite crystal (Fig. 3a–b). The ~ 150 nm thick cross–section...elemental mapping of the core-1. (g) STEM image of the irarsite inclusion associated with the zoned laurite grain...Jiménez–Franco, et al. Fig. 4. (a) STEM image of the irarsite inclusion associated with the zoned laurite grain |  | | Journal (article/letter/editorial) | | PGM is laurite which is rarely associated with irarsite ± Os–Ir alloys; these minerals in particular are...(Table 5). chromitites, which in some cases, irarsite and Os–Ir alloy were found to be associated with...higher in laurite grains from high-Cr chromitites. Irarsite inclusions, which were detected also as single...wt.% Rh (Fig. 6b). However, the Pt contents of irarsite are usually below the detection limit. Due to...chromitites. Ru# = Ru/(Ru + Os); L: Laurite, I: Irarsite; Os-Ir: Os-Ir alloy; bdl = below detection limit |  | González-Jiménez, José María, Barra, Fernando, Walker, Richard J., Reich, Martin, Gervilla, Fernando (2014) Geodynamic implications of ophiolitic chromitites in the La Cabaña ultramafic bodies, Central Chile. International Geology Review, 56 (12) 1466-1483 doi:10.1080/00206814.2014.947334 | Journal (article/letter/editorial) | | Os-Ir-Ru alloys, laurite (RuS2)-erlichmanite (OsS2), irarsite (IrAsS), and minor omeiite (OsAs2), and Ru-Ni...of Ru-bearing Ni-rich sulphides. In contrast, irarsite, omeiite, and the unnamed Rh-Cu antimonide are...Eastern Desert, Egypt (Ahmed et al. 2006); Dobromirtsi, Bulgaria (González-Jiménez et al. 2013b); Kraubath...Golyamo Kamenyane serpentinite, Eastern Rhodopes, SE Bulgaria: A two-stage process: Contributions to Mineralogy...in the metamorphosed Ultramafic Massif of Dobromirtsi (Bulgaria): Gondwana Research. doi:10.1016/j.gr.2013 |  | Prichard, H.M., Barnes, Stephen J., Dale, C.W., Godel, B., Fisher, P.C., Nowell, G.M. (2017) Paragenesis of multiple platinum-group mineral populations in Shetland ophiolite chromitite: 3D X-ray tomography and in situ Os isotopes. Geochimica et Cosmochimica Acta, 216. 314-334 doi:10.1016/j.gca.2017.03.035 | Journal (article/letter/editorial) | | and Ru-rich PGM (IPGM) including laurite (RuS2), irarsite (Ir,Ru, Rh,Os)AsS, hollingworthite (Rh,Pt,Pd)AsS...Nikkavord North which contains clusters of laurite, irarsite, hollingworthite, ruthenian pentlandite, Ni-Rh...as pentlandite with >30 mg/g Ru), native Os and irarsite often 5 rimmed by hollingworthite. Other minerals...interstitial laurite is often accompanied by native Os, irarsite and ruthenian pentlandite forming composite PGM;...predominantly laurite associated with native Os, irarsite and ruthenian pentlandite. Os-Ir alloys are a |  | González-Jiménez, José M., Barra, Fernando, Garrido, Leonardo N.F., Reich, Martin, Satsukawa, Takako, Romero, Rurik, Salazar, Eduardo, Colás, Vanessa, Orellana, Felipe, Rabbia, Osvaldo, Plissart, Gaëlle, Morata, Diego (2016) A secondary precious and base metal mineralization in chromitites linked to the development of a Paleozoic accretionary complex in Central Chile. Ore Geology Reviews, 78. 14-40 doi:10.1016/j.oregeorev.2016.02.017 | Journal (article/letter/editorial) | | identified include native osmium, laurite (RuS2), irarsite (IrAsS), osarsite (OsAsS), omeiite (OsAs2), Pt–Fe...chlorite associated with a PGM–BMM assemblage (irarsite + isoferroplatinum + stumpflite + orcelite) was...Appendix 5), twelve are sulpharsenides of the irarsite–osarsite– ruarsite solid solution series (IrAsS–OsAsS–RuAsS)...omeiite; OsAs2), and one grain of potarite (PdHg). Irarsite is the most abundant PGM at La Cabaña (n = 7);...in) secondary chlorite. In some cases, composite irarsite–laurite grains show partly corroded outlines (Fig |  | 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) | | Australian Coolac Belt (Graham et al., SC RI 1996), Dobromirtsi in the Bulgarian Rhodopes (González-Jiménez et...the metamorphosed Ultramafic Massif of Dobromirtsi (Bulgaria). Gondwana Research (submitted). González-Jiménez...2001GC000277. Tarkian, M., Prichard, H. M., 1987. Irarsite-hollingworthite solid-solution series and other...chromitites from the eastern Rhodope ultramafic complex, Bulgaria. PT Mineralogy and Petrology 44, 73–87. Thayer...2005; González-Jiménez et al., 2011b); Dobromirtsi, Bulgaria (Tarkian et al. 1991; ED González-Jiménez |  | | Journal (article/letter/editorial) | | laurite, several osmium (Os,Ir), iridium (Ir,Os), irarsite, and one single grain of speryllite (PtAs2) were...laurite-sperrylite association, a very small (~2 m) irarsite phase was also detected MA (Figure 8 #6). Three...Golyamo Kamenyane serpentinite, Eastern Rhodopes, SE Bulgaria : a two-stage processContribution to Mineralogy...Chromite Ores from the Dobromirtsi UltramaficMassif, Rhodope Mountains (SE Bulgaria). Geologica Acta 7,...491–508. MA Tarkian, M., Prichard, H.M., 1987. Irarsite‒Hollingworthite Solid‒Solution Series and Other |  | Derbyshire, E.J., O'Driscoll, B., Lenaz, D., Zanetti, A., Gertisser, R. (2019) Chromitite petrogenesis in the mantle section of the Ballantrae Ophiolite Complex (Scotland) Lithos, 344. 51-67 doi:10.1016/j.lithos.2019.06.013 | Journal (article/letter/editorial) | | chromitite. In this study, only one small (<2 μm) irarsite ([Ir,Ru,Rh,Pt]AsS) grain was NU documented at...grains (laurite [RuS2 ], erlichmannite [OsS2 ], irarsite [IrAsS] and Ir-Os-Ru alloys; Power and Pirrie...chromite ores from the Dobromirtsi Ultramafic Massif, Rhodope Mountains (SE Bulgaria). Geologica Acta 7,...ophiolite chromitites from the Dobromirtsi Massif, Rhodope Mountains (Bulgaria). Resource Geology 60, 315-334 |  | González-Jiménez, José M., Camprubí, Antoni, Colás, Vanessa, Griffin, William L., Proenza, Joaquín A., O'Reilly, Suzanne Y., Centeno-García, Elena, García-Casco, Antonio, Belousova, Elena, Talavera, Cristina, Farré-de-Pablo, Júlia, Satsukawa, Takako (2017) The recycling of chromitites in ophiolites from southwestern North America. Lithos, 294. 53-72 doi:10.1016/j.lithos.2017.09.020 | Journal (article/letter/editorial) | | laurite (RuS2)-erlichmanite (OsS2), osmium and irarsite (IrAsS) in chromite, that yield TMA ≈ TRD model...by smaller ED grains (< 15 µm) of osmium and irarsite (IrAsS) (Fig.7a-h; Table 2). Most of these grains...the metamorphosed Ultramafic Massif of Dobromirtsi (Bulgaria). Gondwana Res. 27, 555–574. MA González-Jiménez...chromitites from the eastern Rhodope ultramafic complex, Bulgaria. Mineralogy and Petrology 44, 73–87. CE Ulmer...Laurite OsLaurite OsLaurite Erlichm anite Osmium Irarsite AC E C PT D E C S U N A M I R T P As |  | | Journal (article/letter/editorial) | | Cu deposits, extending from Romania, Serbia and Bulgaria, (up to 4 ppm in in high grade ores) from the... Philippines (Tarkian and Koopmann, 1995), in Bulgaria (Augé et al., 2005). Although the potential for...porphyry-Cu-Mo deposits from Greece (Skouries), Bulgaria (Elatsite, Medet, Assarel and Trar 99 Asen)...Economou-Eliopoulos, 2008). Also, the 262 sulfarsenide irarsite occurs as an inclusion in laurite and at the periphery...heterogeneous Os isotopic composition at Cuba, Bulgaria (Rhodope massif), China and 363 everywhere suggest |  | Malitch, Kreshimir N., Badanina, Inna Yu., Belousova, Elena A., Murzin, Valery V., Velivetskaya, Tatiana A. (2021) Origin of Ru-Os Sulfides from the Verkh-Neivinsk Ophiolite Massif (Middle Urals, Russia): Compositional and S-Os Isotope Evidence. Minerals, 11 (3) 329 doi:10.3390/min11030329 | Journal (article/letter/editorial) | | alloy, rimmed by secondary As-bearing laurite, irarsite (IrAsS), and tolovkite (IrSbS). Particularities...cuprorhodsite CuIr2 S4 , cooperite PtS, Pt-Fe alloys, irarsite IrAsS, hollingworthite RhAsS, keithconnite Pd20...the metamorphosed ultramafic massif of Dobromirtsi (Bulgaria). Gondwana Res. 2015, 27, 555–574. [CrossRef]...nuggets from Au-PGE placers of the Maimecha-Kotui Province, Russia: A multi-disciplinary study. Mineral. |  | Airiyants, Evgeniya V., Belyanin, Dmitriy K., Zhmodik, Sergei M., Agafonov, Leonid V., Romashkin, Pavel A. (2020) Chemical composition and origin of platinum-group minerals from placers of the Aunik River, Buryatia, Russia. Ore Geology Reviews, 120. 103453 doi:10.1016/j.oregeorev.2020.103453 | Journal (article/letter/editorial) | | next to the gold; (c) native gold, sperrylite, irarsite (Ir,Pt,Ru)(AsS) and isoferroplatinum, with miniature...sulfarsenides such as cooperite, sperrylite, and irarsite formed first directly on cavity walls. They are...ophiolite chromitites from the Dobromirtsi Massif, Rhodope Mountains (Bulgaria). Resource Geol. 60, 315–334 |
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