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Articles, 2 records found
Articles 2 records found  
1.
17 p, 934.3 KB Chromite and platinum group elements mineralization in the Santa Elena Ultramafic Nappe (Costa Rica): geodynamic implications / Zaccarini, F. (University of Leoben. Department of Applied Geosciences and Geophysics) ; Garuti, G. (University of Leoben. Department of Applied Geosciences and Geophysics) ; Proenza, J.A. (Universitat de Barcelona. Departament de Cristal·lografia, Mineralogia i Dipòsits Minerals) ; Campos, L. (University of Costa Rica. Escuela Centroamericana de Geología) ; Thalhammer, O.A.R. (University of Leoben. Department of Applied Geosciences and Geophysics) ; Aiglsperger, T. (Universitat de Barcelona. Departament de Cristal·lografia, Mineralogia i Dipòsits Minerals) ; Lewis, J.F. (The George Washington University. Department of Earth and Environmental Sciences)
Chromitites associated with strongly altered peridotite from six distinct localities in the Santa Elena ultramafic nappe (Costa Rica) have been investigated for the first time. Santa Elena chromitites commonly display a compositional variation from extremely chromiferous (Cr/(Cr+Al)=0. [...]
2011 - 10.1344/105.000001696
Geologica acta, Vol. 9, Núm. 3-4 (setembre-desembre 2011) , p. 407-423  
2.
12 p, 1.5 MB The podiform chromitites in the Dagküplü and Kavak mines, Eskisehir ophiolite (NW-Turkey) : genetic implications of mineralogical and geochemical data / Uysal, I. (Karadeniz Technical University. Department of Geological Engineering) ; Zaccarini, F. (University of Leoben. Department of Applied Geological Sciences and Geophysics) ; Sadiklar, M.B. (Karadeniz Technical University. Department of Geological Engineering) ; Tarkian, M. (University of Hamburg. Institute of Mineralogy and Petrology) ; Thalhammer, O.A.R. (University of Leoben. Department of Applied Geological Sciences and Geophysics) ; Garuti, G. (University of Modena and Reggio Emilia. Dipartimento di Scienze della Terra)
Mantle tectonites from Eskisehir (NW-Turkey) include high-Cr chromitites with limited variation of Cr#, ranging from 65 to 82. Mg# ratios are between 54 and 72 and chromite grains contain up to 3. 71 wt% Fe2O3 and 0. [...]
2009 - 10.1344/105.000001442
Geologica acta, Vol. 7, Núm. 3 (Setembre 2009) , p. 351-362  

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