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Gîtes stratiformes de chromite

, 1995
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A New Method (Ball Milling and Sodium Sulfide) for Mechanochemical Treatment of Soda Ash Chromite Ore Processing Residue

Journal of Hazardous Materials, 2021
Hexavalent chromium in soda ash Chromite Ore Processing Residue (COPR) is harmful to the environment, it is imperative to develop a low cost, efficient, and effective treatment.
Yaguang Du, Tian C Zhang
exaly   +2 more sources

The chromite crisis in the evolution of continental magmas and the initial high δ26Mg reservoir

Journal of Petrology, 2023
Fractional crystallization of Fe-Ti oxides can induce detectable Mg isotopic changes during late-stage basalt differentiation. Because chromite and olivine are early crystallizing phases during basaltic melt differentiation, the effect of chromite ...
Yan Xiao, Meng Yuan, B. Su, C. Chen, Yang Bai, S. Ke, Yang Sun, P. Robinson   +7 more
semanticscholar   +1 more source

Trace Elements in Chromite as Indicators of the Origin of the Giant Podiform Chromite Deposit at Kempirsai, Kazakhstan

Economic Geology, 2022
This study presents a complete trace element data set of chromite from the world’s largest podiform chromite deposit at Kempirsai, Kazakhstan, together with platinum group element (PGE) and Re-Os isotope compositions, to explore the potential of trace ...
Wenxuan Hu, Mei‐Fu Zhou, M. Yudovskaya, I. Vikentyev, J. Malpas, Peng-Fei Zhang   +5 more
semanticscholar   +1 more source

Different Pathways for Cr(III) Oxidation: Implications for Cr(VI) Reoccurrence in Reduced Chromite Ore Processing Residue.

Environmental Science and Technology, 2020
Hexavalent chromium contamination is a global environmental issue and usually reoccurs in alkaline reduced chromite ore processing residues (rCOPR). The oxidation of Cr(III) solids in rCOPR is one possible cause but as yet little studied.
Weizhen Liu, Jing Li, Jiayi Zheng, Yao Song, Zhenqing Shi, Zhang Lin, L. Chai   +6 more
semanticscholar   +1 more source

Zinc isotope fractionation between Cr-spinel and olivine and its implications for chromite crystallization during magma differentiation

Geochimica et Cosmochimica Acta, 2021
We report the first zinc isotope data (expressed as δ66Zn relative to the JMC-Lyon standard) for chromian spinels (Cr-spinels) and coexisting olivines in oceanic peridotites.
Chun Yang, Sheng-Ao Liu, Long Zhang, Ze‐Zhou Wang, Ping‐Ping Liu, Shuguang Li   +5 more
semanticscholar   +1 more source

Magnesium Aluminum Chromite.

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Joab S, Santos, Antônio C, Doriguetto, Nelson G, Fernandes   +2 more
openaire   +2 more sources

Distinctive melt activity and chromite mineralization in Luobusa and Purang ophiolites, southern Tibet: constraints from trace element compositions of chromite and olivine

Science Bulletin, 2019
To investigate the factors controlling the mineralization in ophiolites we systematically compared the petrology and mineral compositions of the harzburgites/lherzolites, dunites and chromitites in the Luobusa and Purang ophiolites.
Chen Chen, Yan Xiao, Davide Lenaz
exaly   +2 more sources

Experimental and theoretical investigations on optical properties of multiferroic PrCrO3 ortho-chromite compound

, 2020
The PrCrO3 ceramic compound was prepared by the sol-gel route. The optical properties of this ceramic were characterized by UV–Vis absorption spectroscopy.
R. Mguedla, A. Kharrat, O. Taktak, H. Souissi, S. Kammoun, K. Khirouni, W. Boujelben   +6 more
semanticscholar   +1 more source