Compositions of chromite, associated minerals, and parental magmas of podiform chromite deposits: The role of slab contamination of asthenospheric melts in suprasubduction zone environments

• Published in: Gondwana research Vol. 26; no. 1; pp. 262 - 283
• Main Authors: Zhou, Mei-Fu, Robinson, Paul T., Su, Ben-Xun, Gao, Jian-Feng, Li, Jian-Wei, Yang, Jing-Sui, Malpas, John
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.2014
• Subjects: Associated minerals; Chromite compositions; Melt/rock interaction; Podiform chromitite; Slab contamination; Melt/rock interaction; Associated minerals; Slab contamination; Chromite compositions; Podiform chromitite

Podiform chromitites in the mantle sections of ophiolites belong to either high-Cr (metallurgical) or high-Al (refractory) varieties. Their highly variable compositions are reflected by different Cr#s [100Cr/(Cr+Al)] and Cr2O3 and Al2O3 contents of the chromite, falling in the boninitic and MORB fie...