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Makran ophiolitic basalts (SE Iran) record Late Cretaceous Neotethys plume-ridge interaction

文献类型：期刊论文

作者Esmaeili, Rasoul1,2; Xiao, Wenjiao1,2,3,4; Ebrahimi, Mohammad5; Zhang, Ji'En1; Zhang, Zhiyong1; Abd El-Rahman, Yasser6; Han, Chunming1,4; Wan, Bo1,4; Ao, Songjian1; Song, Dongfang1
刊名INTERNATIONAL GEOLOGY REVIEW
出版日期2019-09-02
页码21
关键词plume-ridge interaction melange basalt geochemistry Makran Iran
ISSN号0020-6814
DOI10.1080/00206814.2019.1658232
英文摘要The Makran complex in southeast Iran provides a spectacular subduction-related accretionary complex to understand the mechanism of oceanic accretion and the evolution of subduction zones. In this paper, we present new major and trace element data as well as isotopic compositions of mafic volcanic blocks from the Makran ophiolitic melange complex (OMC). Our aim is to assess the genesis of these rocks and discuss their implications on the evolution of Neotethys Ocean. These volcanic blocks are composed mainly of basalts with minor trachytes. The Makran lavas are occasionally interlayered with tuff layers. Zircons from these tuffs give U-Pb ages of 95 Ma, which is well in accordance with the reposted microfossil data for the interlayered pelagic limestones with pillow lavas. Makran basalts can be geochemically subdivided into four groups; normal to transitional MORB, enriched-MORB, Plume-type MORB and alkaline (-OIB-like) basalts. The OIB-like pillow lavas are represented by high values of Th/Tb (6.3-7.4) which are higher than other basalts (group 1 = 0.3-0.8; groups 2 = 0.7-1.6; group 3 = 1.58-1.36).Nd-143/Nd-144((t)) ratios for basalts ranges from 0.51247 to 0.51292, whereas Sr-87/Sr-86((t)) isotopic composition of the OMC lavas varies from 0.704433 to 0.709466. The Pb isotopic composition of the lavas are quite high, ranging from 15.49-15.66 for Pb-207/Pb-204((t)), 18.09-19.12 for Pb-206/Pb-204((t)) and 37.80-39.23 for Pb-208/Pb-204((t)). The chemistry of these rocks suggests that they were formed most likely in an oceanic setting with clear plume-ridge interaction. These rocks can form from partial melting of a highly heterogeneous mantle source, which is extensively metasomatized with deep mantle OIB-type components. We suggest these rocks have been generated in an oceanic ridge with plume-ridge interaction, similar to the Iceland-Reykjanes Ridge, before being fragmented and accreted into the Makran accretionary complex.
WOS关键词ZAGROS SUTURE ZONE ; MID-OCEAN-RIDGE ; ZIRCON U-PB ; TECTONIC EVOLUTION ; HYDROTHERMAL ALTERATION ; KERMANSHAH OPHIOLITE ; SUBDUCTION ZONE ; TRACE-ELEMENT ; BACK-ARC ; GEOLOGICAL SAMPLES
资助项目Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-SYS012] ; National Natural Science Foundation of china[91755102] ; National Natural Science Foundation of china[91855207] ; National Natural Science Foundation of china[41672085] ; National Natural Science Foundation of china[41822204] ; National Natural Science Foundation of china[41472192] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS)[XDB18020203] ; CAS-TWAS President's Fellowship[IGCP 662]
WOS研究方向Geology
语种英语
WOS记录号WOS:000484788600001
出版者TAYLOR & FRANCIS INC
资助机构Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; National Natural Science Foundation of china ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship ; CAS-TWAS President's Fellowship
源URL[http://ir.iggcas.ac.cn/handle/132A11/93572]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Xiao, Wenjiao
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi, Peoples R China
4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
5.Univ Zanjan, Fac Sci, Dept Geol, Zanjn, Iran
6.Cairo Univ, Fac Sci, Dept Geol, Giza, Egypt
7.Shahrood Univ Technol, Fac Sci, Dept Geol, Shahrood, Iran
推荐引用方式
GB/T 7714		 Esmaeili, Rasoul,Xiao, Wenjiao,Ebrahimi, Mohammad,et al. Makran ophiolitic basalts (SE Iran) record Late Cretaceous Neotethys plume-ridge interaction[J]. INTERNATIONAL GEOLOGY REVIEW,2019:21.
APA Esmaeili, Rasoul.,Xiao, Wenjiao.,Ebrahimi, Mohammad.,Zhang, Ji'En.,Zhang, Zhiyong.,...&Aouizerat, Arthur.(2019).Makran ophiolitic basalts (SE Iran) record Late Cretaceous Neotethys plume-ridge interaction.INTERNATIONAL GEOLOGY REVIEW,21.
MLA Esmaeili, Rasoul,et al."Makran ophiolitic basalts (SE Iran) record Late Cretaceous Neotethys plume-ridge interaction".INTERNATIONAL GEOLOGY REVIEW (2019):21.

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来源：地质与地球物理研究所

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