Classification of the Neoproterozoic ophiolites of the Central Eastern Desert, Egypt based on field geological characteristics and mode of occurrence
作者: Gaafar El Bahariya
作者单位: 1Geology Department, Faculty of Science, Tanta University
刊名: Arabian Journal of Geosciences, 2018, Vol.11 (12), pp.1-23
来源数据库: Springer Journal
DOI: 10.1007/s12517-018-3677-1
关键词: Neoproterozoic ophiolitesGeological characteristicsMode of occurrenceCentral Eastern DesertEgyptMORBSSZ
英文摘要: Abstract(#br)The present work presents new field observations on the geological characteristics of the Neoproterozoic ophiolites of the Central Eastern Desert (CED) of Egypt. Based on mode of occurrences, the investigated ophiolites appear to show characteristics of both MORB-type and SSZ-type ophiolites and classified from oldest to youngest into: (1) MORB intact ophiolites (MIO), (2) dismembered ophiolites (DO), and (3) arc-associated ophiolites (AAO). Ophiolite components include serpentinized peridotite and other metamorphosed ultramafics, metagabbros, sheeted dykes, pillowed and massive metabasalts, minor boninites, and pelagic sediments. The rocks of the MIO and DO were subjected to two main phases of deformation (D 1 and D 2 ) and metamorphism, whereas the AAO have been affected...
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影响因子:0.74 (2012)

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