Petrological, geochemical and isotopic characteristics of the Collo ultramafic rocks (NE Algeria)

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• 作者：Rabah Laouar^a ; ^c ; ^{rabahlaouar@yahoo.fr} ; Adel Satouh^b ; ^{sadel2013@yahoo.fr} ; Sihem Salmi-Laouar^a ; ^{ssalmit@yahoo.fr} ; Nachida Abdallah^c ; ^{a_nachida@yahoo.fr} ; Jean-Yves Cottin^d ; ^{cottin@univ-st-etienne.fr} ; Olivier Bruguier^e ; ^{olivier.bruguier@gm.univ-montp2.fr} ; Delphine Bosch^e ; ^{bosch@gm.univ-montp2.fr} ; Aziouz Ouabadi^c ; ^{ouabadi@yahoo.fr} ; Adrian J. Boyce^f ; ^{a.boyce@suerc.gla.ac.uk} ; Anthony E. Fallick^f ; ^{Anthony.Fallick@glasgow.ac.uk}
• 关键词：Serpentinites ; Chromian spinel ; Geochemistry ; Alpine type peridotites ; Collo
• 刊名：Journal of African Earth Sciences
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：125
• 期：Complete
• 页码：59-72
• 全文大小：4593 K
• 卷排序：125

文摘

The peridotites of the Collo ultramafic rocks are mainly lherzolite, but dunites may occur rarely. Mineral and whole rock chemistry indicate that these ultramafic rocks are highly magnesian and belong to Alpine-type peridotites. Oxygen isotope data show the derivation of the Collo ultramafic rocks from a mantle source; they also show the effect of serpentinization processes through high temperature metasomatic fluids.