 | Colás, Vanessa, González-Jiménez, José María, Camprubí, Antoni, Proenza, Joaquín A., Griffin, William L., Fanlo, Isabel, O’Reilly, Suzanne Y., Gervilla, Fernando, González-Partida, Eduardo (2019) A reappraisal of the metamorphic history of the Tehuitzingo chromitite, Puebla state, Mexico. International Geology Review, 61 (14) 1706-1727 doi:10.1080/00206814.2018.1542633 | Journal (article/letter/editorial) | | the metamorphic history of the Tehuitzingo chromitite, Puebla state, Mexico Vanessa Colás, José María González-Jiménez...the metamorphic history of the Tehuitzingo chromitite, Puebla state, Mexico, International Geology Review...the metamorphic history of the Tehuitzingo chromitite, Puebla state, Mexico Vanessa Colás a, José María...ARTICLE HISTORY The Tehuitzingo ultramafic body (Acatlán Complex, southern Mexico) is a strongly serpentinized... at similar temperature conditions than the Tehuitzingo serpentinite. Received 22 June 2018 Accepted |  | | Journal (article/letter/editorial) | | ophiolitic chromitites from Tehuitzingo (Acatlán complex, southern Mexico): implications for post-magmatic...bodies occur in serpentinites at Tehuitzingo (Acatlán complex, southern Mexico). Serpentinite and chromitite...suggest that the metamorphism affecting the Tehuitzingo chromitites caused only re-distribution of PGE...the PGE do not occur in solid solution within the spinel lattice, as proposed by Capobianco and Drake (1990)...group minerals in ophiolitic chromitites from Tehuitzingo 149 However, there is now convincing proof |  | | Journal (article/letter/editorial) | | serpentinite rocks of Tasmania, Australia and Tehuitzingo, Mexico. Elemental analysis of stichtite shows a...shown to form at the expense of brucite and Cr spinel in the south Iberia Abyssal Plain (Klein et al...hydrogen gas (Mottl et al., 2003) with brucite and Cr spinel by the reaction MgCr2O4 + 5 Mg(OH)2 + CO3 + H2... Australia, and to a lesser degree near Tehuitzingo, Mexico (Fig. 1a, b). In both cases, the stichtite...Hill), while the Tehuitzingo, Mexico locality will be referred to simply as ‘‘Mexico.” 1.1. Geology and |  | González-Jiménez, José M., Proenza, Joaquín A., Martini, Michelangelo, Camprubí, Antoni, Griffin, William L., O'Reilly, Suzanne Y., Pearson, Norman J. (2017) Deposits associated with ultramafic–mafic complexes in Mexico: the Loma Baya case. Ore Geology Reviews, 81. 1053-1065 doi:10.1016/j.oregeorev.2015.05.014 | Journal (article/letter/editorial) | | Deposits associated with ultramafic–mafic complexes in Mexico: the Loma Baya case José M. González-Jiménez a...México Ciudad Universitaria, 04510 México, D.F., Mexico b c a r t i c l e i n f o Article history: Received...complexes Loma Baya Guerrero composite terrane Mexico Chromitite Platinum-group elements Back-arc settings...deposits occur mostly along the Pacific margin of Mexico and the boundaries of the Guerrero composite terrane...Ultramafic–mafic complexes with known or estimated ages in Mexico are mostly of Paleozoic and Mesozoic ages, and |  | Galaz E., Gonzalo, Keppie, J. Duncan, Lee, James K.W., Ortega-Rivera, Amabel (2013) A high-pressure folded klippe at Tehuitzingo on the western margin of an extrusion zone, Acatlán Complex, southern México. Gondwana Research, 23 (2) 641-660 doi:10.1016/j.gr.2012.04.011 | Journal (article/letter/editorial) | | com/locate/gr A high-pressure folded klippe at Tehuitzingo on the western margin of an extrusion zone, Acatlán...a b s t r a c t High-pressure (HP) rocks at Tehuitzingo, on the western margin of the HP belt within...asthenospheric return flow. In this context, the Tehuitzingo serpentinite and associated lenses of HP rocks...1). However, the structural geometry of the Tehuitzingo serpentinite is in doubt and several hypotheses...about the structural geometry and origin of the Tehuitzingo serpentinites and G. Galaz E. et al. / Gondwana |  | | Journal (article/letter/editorial) | | 2013) The high-pressure (HP) Piaxtla Suite at Tehuitzingo contains peridotites, gabbros, and serpentinized...character, whereas low Ti/V ratios indicate that the Tehuitzingo cumulates are island arc tholeiitic basalts that...meaningless. Our data are consistent with the Tehuitzingo arc rocks being part of a tectonically extruded...the mafic and associated intermediate rocks at Tehuitzingo in order to determine their origin, chemical...Hornos 18º 30′ N Las Calaveras El Epazote TEHUITZINGO ~1 Ga Oaxacan Complex Huerta Amate Psammite/pelite |  | Proenza, J.A., Zaccarini, F., Escayola, M., Cábana, 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 Córdoba, Argentina. Ore Geology Reviews, 33 (1) 32-48 doi:10.1016/j.oregeorev.2006.05.009 | Journal (article/letter/editorial) | | meters in length, and consisting mainly of olivine, spinel and anthophyllite, crosscut the ultramafic body...complex intergrowth consisting of Al-rich spinel and Fe-rich spinel in massive chromitite (A), and replacement...correspond compositionally to chromite and Fe-rich Cr-spinel, respectively. This texture is similar to the exsolution...ophiolitic chromitites, such as those in Tehuitzingo, SW Mexico (Proenza et al., 2004b; Zaccarini et al...defined by the Al-rich chromitites from de Tehuitzingo (SW Mexico), Patio Bonito (Dunitas de Medellín, Colombia) |  | Gervilla, F., Asta, M. P., Fanlo, l., Grolimund, D., Ferreira-Sánchez, D., Samson, V. A., Hunziker, D., Colas, V., González-Jiménez, J. M., Kerestedjian, T. N., Sergeeva, I. (2019) Diffusion pathways of Fe2+ and Fe3+ during the formation of ferrian chromite: a µXANES study. Contributions to Mineralogy and Petrology, 174 (8) doi:10.1007/s00410-019-1605-3 | Journal (article/letter/editorial) | | Nature 2019 Abstract The alteration of chromian spinel is a key process during serpentinization and metamorphism...exchange during fluid–rock interaction. Chromian spinel alteration is better recorded in less permeable... e2+ and F e3+ in variably altered chromian spinel grains from a set of chromitite samples from the...the porous rims, giving rise to zoned chromian spinel-ferrian chromite grains. Keywords Metamorphic alteration...alteration · Iron diffusion · Chromian spinel · Ferrian chromite · µXANES spectra · RIXS data Introduction |  | Proenza, J. A., Zaccarini, F., Lewis, J. F., Longo, F., Garuti, G. (2007) Chromian spinel composition and the platinum-group minerals of the PGE-rich Loma Peguera chromitites, Loma Caribe peridotite, Dominican Republic. The Canadian Mineralogist, 45 (3) 631-648 doi:10.2113/gscanmin.45.3.631 | Journal (article/letter/editorial) | | (2007) DOI : 10.2113/gscanmin.45.3.631 CHROMIAN SPINEL COMPOSITION AND THE PLATINUM-GROUP MINERALS OF...the mineralogy and genetic aspects of chromian spinel and associated PGM have presented challenges to...the first data on the composition of the chromian spinel, the concentration of PGE and a description of...secondary PGM. The composition of the chromian spinel, together with the paragenesis and composition...2006). The Cr/(Cr + Al) value of accessory chromian spinel varies from 0.30 in lherzolite to 0.88 in dunite |  | | Journal (article/letter/editorial) | | calculations have been conducted using multiple olivine-spinel geothermometers to understand the extend of re-equilibration...Archean chromitite in Greenland. lP Olivine and spinel coexist in several geological environments, including...temperature, especially for coexisting Cr-rich spinel and olivine, and Irvine (1965) first documented...for na the chromitites from the Tehuitzingo ultramafic complex, Mexico (Colas et al., 2019). Subsequently...alteration in the chromitites from Tehuitzingo ultramafic complex, Mexico. 6.2. Origin of chromitites and |  | 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) | | Belt, Australia; Thetford Mines, Canada; Tehuitzingo, Mexico; Ray-Iz, Rusia; and Dobromirtsi, Bulgaria)...Shetland(*) Kraubath(**) Hochgrossen(**) Ray-Iz(*) Tehuitzingo(*) Great Serpentinite Belt(*) Applied Earth...‘Partitioning of ruthenium, rhodium and palladium between spinel and silicate melt and implications for platinum-group...J. F. Lewis, F. Longo and G. Garuti: ‘Chromian spinel composition and the platinum group minerals of...of Ru, Rh, Pd, Re, Ir and Au between Cr-bearing spinel, olivine, pyroxene and silicate melts’, Geochim |  | 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) | | trains of Cr-spinel in the porphyroclastic rocks) and random distributions of Cr-spinel grains are obliterated...Centinela Bajo chromitite compared with chromian spinel of various tectonic settings in terms of (a) Al-Cr-Fe3+...(d) TiO2 versus Al2O3. Data sources for chromian spinel of different tectonic settings taken from Kamenetsky...California Sur, Mexico (Vatin-Perignon et al. 2000); Tehuitzingo, Acatlan Complex, Mexico (Proenza et al...the ‘metamorphosed’ highAl chromitites of Tehuitzingo, SW Mexico (Proenza et al. 2004). In contrast, the |  | | Journal (article/letter/editorial) | | high-Cr, low-Fe3+ spinel at the core to Cr-magnetite at the rim. Two types of Cr-spinel have been recognized...conjunction with microprobe analytical profiles. Cr-spinel type-I is present in the least metamorphosed serpentinite...serpentinite (Cr# = 0.78–0.85, Mg# = 0.38–0.45) and Cr-spinel type-II is present in the most highly metamorphosed...Zn and Mn enrichment in the core zone of the Cr-spinel is due to the substitution of Mg2+ and in part...16 March 2012 KEY WORDS mineral chemistry; Cr-spinel; genesis; Tidding Suture Zone; eastern Himalaya; |  | Uysal, Ibrahim, Zaccarini, Federica, Sadiklar, M. Burhan, Bernhardt, Heinz-Jürgen, Bigi, Simona, Garuti, Giorgio (2009) Occurrence of rare Ru-Fe-Os-Ir-oxide and associated Platinum-group minerals (PGM) in the chromitite of Muğla ophiolite, SW-Turkey. Neues Jahrbuch für Mineralogie - Abhandlungen, 185 (3) 323-333 doi:10.1127/0077-7757/2009/0131 | Journal (article/letter/editorial) | | directly from the PGM included in fresh chromian spinel in different polished blocks from the chromitite...(Dominican Republic) (Proenza et al. 2007), Tehuitzingo (Mexico) (Zaccarini et al. 2005), Ray-Iz (Polar Urals)...J. F., Longo, F. & Garuti, G. (2007): Chromian spinel composition and the platinum-group minerals of...ophiolitic chromitites from Tehuitzingo (Acatlan Complex, Southern Mexico): implications for postmagmatic |  | 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) | | origin from mineralogy and geochemistry of chromian spinel and platinum-group elements J.M. González-Jiménez...Ophiolitic chromitite High-Cr and high-Al chromian spinel Platinum-group elements Platinum-group minerals...ophiolitic massif, eastern of Cuba. The chromian spinel in these bodies displays a large range in Cr# (Cr/Cr...randomly. The differences in the type of chromian spinel (i.e., high-Cr or high-Al) in the chromitite coincide...The calculated melts in equilibrium with chromian spinel of high-Cr chromitite are island arc thoeliites |  | Gervilla, F., Padrón-Navarta, J. A., Kerestedjian, T., Sergeeva, I., González-Jiménez, J. M., Fanlo, I. (2012) Formation of ferrian chromite in podiform chromitites from the Golyamo Kamenyane serpentinite, Eastern Rhodopes, SE Bulgaria: a two-stage process. Contributions to Mineralogy and Petrology, 164 (4) 643-657 doi:10.1007/s00410-012-0763-3 | Journal (article/letter/editorial) | | primary igneous composition of chromite in the Tehuitzingo serpentinites and interpret the observed ferrian...chlorite, tremolite, orthophyroxene and chromium spinel. Metadunite contains variable proportions of relict...antigorite, lizardite/chrysotile, chlorite, chromium spinel and tremolite, depending on the degree of alteration...the Cr-spinel (Klemme et al. 2009). Although a more sophisticated solid solution for Cr-spinel would be...simplified system discussed here (CrMASH), the Cr-spinel solid solution is reduced to a binary solution |  | | Journal (article/letter/editorial) | | Fe3þ in chromite was calculated assuming ideal spinel stoichiometry. Representative analyses of chromite...280 281 282 283 metamorphic chromitite of Tehuitzingo, Mexico (Zaccarini et al., 2005) and from the altered... K., Zaccarini, F., Garuti, G. (2009):Chromian spinel composition and platinum-group element (PGE) mineralogy...258–278. Arai, S. (1992): Chemistry of chromian spinel in volcanic rocks as a potential guide to magma...Barnes, S.J. & Roeder, P.L. (2001): The range of spinel composition in terrestrial mafic and ultramafic rocks |  | | Journal (article/letter/editorial) | | ΣPGE [1,32,34]. Zircons occur as inclusions in Cr-spinel and are commonly cross-cut by fractures and show...highly reduced minerals incorporated into chromian spinel grains near the Moho Transitional Zone (MTZ), but...ophiolite-type chromitites hosted in the Tehuitzingo serpentinite (southern Mexico), showed that they occur as fracture-filling...Hatzipanagiotou, K.; Zaccarini, F.; Garuti, G. Chromian spinel composition and Platinum-group element mineralogy...ophiolitic chromitites from Tehuitzingo (Acatlan complex, southern Mexico): Implications for post-magmatic |  | | Journal (article/letter/editorial) | | Gonzalez-Jimenez et al., 2009), information on chrome spinel deformed under eclogite-facies metamorphism is...Cr# but higher Fe# (0.65–0.68) when compared to spinel compositions of modern volcanic rocks (Kamenetsky...4), Sittampundi chromites occupy the field of Cr-spinel. Compositional profiles across the grains of Figures...represents schematic illustration of a deformed chrome–spinel at the left showing pressure induced nonconcentric...Mg–Fe2+ and Cr–Al, relatively more common in chrome spinel helps in constraining the cooling rate or duration |  | Singh, A. Krishnakanta, Devi, L. Debala, Singh, N. Ibotombi, Subramanyam, K.S.V., Singh, R.K. Bikramaditya, Satyanarayanan, M. (2013) Platinum-group elements and gold distributions in peridotites and associated podiform chromitites of the Manipur Ophiolitic Complex, Indo-Myanmar Orogenic Belt, Northeast India. Geochemistry, 73 (2) 147-161 doi:10.1016/j.chemer.2012.07.004 | Journal (article/letter/editorial) | | clinopyroxene and 1–3 modal% opaque minerals (Cr-spinel, magnetite). They show interlocking grains of orthopyroxene...orthopyroxene, clinopyroxene, olivine and Cr-spinel (Fig. 2e). Orthopyroxene is pale brownish or colourless...serpentinised along fractures. Opaque minerals such as Cr-spinel and magnetite are associated with olivine. Picotite...exhibits honeycomb texture. Granules of chrome spinel and magnetite occur in linear fashion along the...opaque phases (Fig. 3f). The opaque minerals (Cr-spinel and magnetite) constitute 1–4 modal% of most of |  | Colás, Vanessa, Padrón-Navarta, José Alberto, González-Jiménez, José María, Fanlo, Isabel, López Sánchez-Vizcaíno, Vicente, Gervilla, Fernado, Castroviejo, Ricardo (2017) The role of silica in the hydrous metamorphism of chromite. Ore Geology Reviews, 90. 274-286 doi:10.1016/j.oregeorev.2017.02.025 | Journal (article/letter/editorial) | | solid solutions used during calculations were Cr-spinel (Klemme et al., 2009), eskolaite (Chatterjee et...involved in the calculations are pure phases. The Cr-spinel solid solution includes the mixing properties between...observed in zoned chromite grains from Tehuitzingo serpentinite (Mexico, Proenza et al., 2004), Río de Las... A.A., 2016. Fluid-related modifications of Cr-spinel and olivine from ophiolitic peridotites by contact...Paris. Dick, H.J.B., Bullen, T., 1984. Chromian spinel as a petrogenetic indicator in abyssal and alpine-type |  | González-Jiménez, José M., Reich, Martin, Camprubí, Antoni, Gervilla, Fernando, Griffin, William L., Colás, Vanessa, O’Reilly, Suzanne Y., Proenza, Joaquín A., Pearson, Norman J., Centeno-García, Elena (2015) Thermal metamorphism of mantle chromites and the stability of noble-metal nanoparticles. Contributions to Mineralogy and Petrology, 170 (2) doi:10.1007/s00410-015-1169-9 | Journal (article/letter/editorial) | | Abstract The Loma Baya complex in south-western Mexico is a volume of chromitite-bearing oceanic mantle...México, Ciudad Universitaria, 04510 México, D.F., Mexico event, confirming previous thermodynamic predictions...laurite from chromite-bearing rocks at Loma Baya, Mexico. This site is a key locality to study these effects...(GCT), in the state of Guerrero, south-western Mexico (Fig. 1). It is one of the several mafic–ultramafic...the boundaries of the GCT on the Pacific coast of Mexico (Ortiz-Hernández et al. 2006; Camprubí 2013). The |  | 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) | | A-8700, Leoben, Austria Introduction Chromian spinel chemistry, PGE abundances and PGM parageneses in...prevailing in the magmatic systems in which chromian spinel and PGM are formed (e.g. Ferrario and Garuti 1990;...stage, before and during precipitation of chromian spinel (e.g. Augé 1985; Torres-Ruiz et al. 1996; 130...Zaccarini et al. 2008). Generally, the role of chromian spinel as an important collector of IPGE is confirmed...vol.% chromian spinel) and, less typically, disseminated (10– 70 vol.% chromian spinel) (Fig. 2a). They |  | | Journal (article/letter/editorial) | | O3 and FeO were calculated on the basis of the spinel stoichiometry. Major and trace elements in massive...variable modal contents of olivine, garnet and spinel, ranging in composition from orthopyroxenite through...only in the form of inclusions within chromian spinel, while abundant remnants of base metal sulphides...refractory off-craton spinel and garnet peridotites, pyroxenite veins, metasomatised spinel lherzolites and...ophiolite-type chromitites hosted in the Tehuitzingo serpentinite (southern Mexico), have been attributed a secondary |  | 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) | | 1571-1598 (2011) DOI : 10.3749/canmin.49.6.1571 SPINEL COMPOSITION, PGE GEOCHEMISTRY AND MINERALOGY OF...northwestern Greece, hosts abundant deposits of chromian spinel of historical economic importance. The chromitites...with regards to the composition of the chromian spinel and olivine, and the distribution of the platinum-group...Os content of laurite, suggest that the chromian spinel deposits from the south and the north of the complex...PGE are not carried in solid solution in chromian spinel, as has been proposed by experimentalists (e.g |
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