Distribution of platinum-group elements and Os isotopes in chromite ores from Mayarí-Baracoa Ophiolitic Belt (eastern Cuba)
Abstract The Mayarí-Baracoa ophiolitic belt in eastern Cuba hosts abundant chromite
deposits of historical economic importance. Among these deposits, the chemistry of chromite
ore is very variable, ranging from high Al (Cr#= 0.43–0.55) to high Cr (Cr#= 0.60–0.83)
compositions. Platinum-group element (PGE) contents are also variable (from 33 ppb to 1.88
ppm) and correlate positively with the Cr# of the ore. Bulk PGE abundances correlate
negatively with the Pd/Ir ratio showing that chromite concentrates mainly Os, Ir and Ru which …
deposits of historical economic importance. Among these deposits, the chemistry of chromite
ore is very variable, ranging from high Al (Cr#= 0.43–0.55) to high Cr (Cr#= 0.60–0.83)
compositions. Platinum-group element (PGE) contents are also variable (from 33 ppb to 1.88
ppm) and correlate positively with the Cr# of the ore. Bulk PGE abundances correlate
negatively with the Pd/Ir ratio showing that chromite concentrates mainly Os, Ir and Ru which …
[引用][C] Distribution of paltinum-group elements and Os isotopes in chromite ores from Mayarí-Baracoa ophiolitic belt (eastern Cuba)
F Gervilla - Contrib. Mineral. Petrol., 2005 - cir.nii.ac.jp
Distribution of paltinum-group elements and Os isotopes in chromite ores from Mayari-Baracoa
ophiolitic belt (eastern Cuba) | CiNii Research … Distribution of paltinum-group elements
and Os isotopes in chromite ores from Mayari-Baracoa ophiolitic belt (eastern Cuba) …
ophiolitic belt (eastern Cuba) | CiNii Research … Distribution of paltinum-group elements
and Os isotopes in chromite ores from Mayari-Baracoa ophiolitic belt (eastern Cuba) …