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Different Origins of the Fractionation of Platinum-Group Elements in Raobazhai and Bixiling Mafic-Ultramafic Rocks from the Dabie Orogen, Central China
Joint Authors
Xie, Liewen
Hou, Quan-Lin
Li, Hui
Liu, Qing
Wu, Yu-Dong
Ni, Shanqin
Source
Journal of Geological Research
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-11
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Earth Science , Water and Environment
Abstract EN
Concentrations of the platinum group elements (PGEs), including Ir, Ru, Rh, Pt, and Pd, have been determined for both Raobazhai and Bixiling mafic-ultramafic rocks from the Dabie Orogen by fire assay method.
Geochemical compositions suggest that the Raobazhai mafic-ultramafic rocks represent mantle residues after variable degrees of partial melting.
They show consistent PGE patterns, in which the IPGEs (i.e., Ir and Ru) are strongly enriched over the PPGEs (i.e., Pt and Pd).
Both REE and PGE data of the Raobazhai mafic-ultramafic rocks suggest that they have interacted with slab-derived melts during subduction and/or exhumation.
The Bixiling ultramafic rocks were produced through fractional crystallization and cumulation from magmas, which led to the fractionated PGE patterns.
During fractional crystallization, Pd is in nonsulfide phases, whereas both Ir and Ru must be compatible in some mantle phases.
We suggest that the PGE budgets of the ultramafic rocks could be fractionated by interaction with slab-derived melts and fractional crystallization processes.
American Psychological Association (APA)
Liu, Qing& Hou, Quan-Lin& Xie, Liewen& Li, Hui& Ni, Shanqin& Wu, Yu-Dong. 2012. Different Origins of the Fractionation of Platinum-Group Elements in Raobazhai and Bixiling Mafic-Ultramafic Rocks from the Dabie Orogen, Central China. Journal of Geological Research،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-486652
Modern Language Association (MLA)
Liu, Qing…[et al.]. Different Origins of the Fractionation of Platinum-Group Elements in Raobazhai and Bixiling Mafic-Ultramafic Rocks from the Dabie Orogen, Central China. Journal of Geological Research No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-486652
American Medical Association (AMA)
Liu, Qing& Hou, Quan-Lin& Xie, Liewen& Li, Hui& Ni, Shanqin& Wu, Yu-Dong. Different Origins of the Fractionation of Platinum-Group Elements in Raobazhai and Bixiling Mafic-Ultramafic Rocks from the Dabie Orogen, Central China. Journal of Geological Research. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-486652
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-486652