Early growth of the Indian lithosphere: Implications from the assembly of the Dharwar Craton and adjacent granulite blocks, southern India
文献类型：期刊论文
| 作者 | Ratheesh-Kumar, R. T.8,9; Windley, B. F.7; Xiao, W. J.1,3,4,5,6; Jia, X-L5,6; Mohanty, D. P.2; Zeba-Nezrin, F. K.9 |
| 刊名 | PRECAMBRIAN RESEARCH
 |
| 出版日期 | 2020 |
| 卷号 | 336页码:28 |
| 关键词 | Subduction Arc magmatism Metamorphism Zircon geochronology Chamockite High-grade terrane |
| ISSN号 | 0301-9268 |
| DOI | 10.1016/j.precamres.2019.105491 |
| 英文摘要 | This study provides a new perspective into the Archean accretionary tectonic evolution of the Dharwar Craton and the adjacent high-grade granulite blocks of southern India. The necessary constraints for this tectonic assembly were derived using new petrochemical and zircon U-Pb age data from the granulite facies Biligiri Rangan Block (BRB), which occupies a central key position in the Archean collage of southern India. The BRB, composed largely of chamockites and mafic granulites, is a vestige of ca. 3400-3200 Ma cratonic fragment that was amalgamated with the Western Dharwar Craton (WDC) at ca. 2700-2500 Ma. The spatial variations in composition and evolution of the charnockites (i.e. low- and high-Sr/Y variants) are attributed to arc magmatic processes at different crust-mantle depths accompanied by a flat- or shallow-dipping subduction geometry. Different stages in the subduction processes such as exhumation and magma underplating (ca. 2800-2950 Ma), initial arc magmatism (ca. 2700-2650 Ma), and peak magmatism together with metamorphism (ca. 2700-2500 Ma) were identified from zircon age populations of different rock-types. Our new results integrated with all published geological and geophysical data lead to the conclusion that the Kollegal and Mettur Shear Zones on the western and eastern sides of the BRB respectively were sited on an east-dipping Archean suture and a closed back-arc basin. We propose a tectonic model for southern India according to which subduction-accretion of the Coorg Block in the Mesoarchean (ca. 3300-3100 Ma) and of the Nilgiri Block, Biligiri Rangan Block and the Eastern Dharwar Craton in the Neoarchean (ca. 2700-2500 Ma) led to closure of the Paleo-Dharwar Ocean and to terminal collision with the Western Dharwar Craton. |
| WOS关键词 | PB ZIRCON GEOCHRONOLOGY ; CRUSTAL GROWTH ; CONTINENTAL GROWTH ; GREENSTONE-BELT ; VOLCANIC-ROCKS ; IGNEOUS CHARNOCKITES ; TECTONIC EVOLUTION ; GRANITES ADJACENT ; SUPERIOR PROVINCE ; RIDGE SUBDUCTION |
| 资助项目 | UGC State Plan Grant (SMNRI project)[PL.(UGC)1/SPG/SMNRI/2018-2019] ; Chinese Academy of Sciences (CAS)[XDB18020203] ; Key Research Program of Frontier Sciences of CAS[QYZDJ-SSW-SYS012] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000508748600007 |
| 出版者 | ELSEVIER |
| 资助机构 | UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; UGC State Plan Grant (SMNRI project) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS ; Key Research Program of Frontier Sciences of CAS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95918]  |
| 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 | Ratheesh-Kumar, R. T.; Xiao, W. J. |
| 作者单位 | 1.Univ Chinese Acad Sci, Dept Earth Sci, Beijing 100049, Peoples R China 2.Savitribai Phule Pune Univ, Dept Geol, Pune 411007, Maharashtra, India 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China 5.Xinjiang Lab Mineral Resources & Digital Geol, Urumqi 830011, Xinjiang, Peoples R China 6.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Xinjiang Inst Ecol & Geog, Urumqi 830011, Xinjiang, Peoples R China 7.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England 8.Univ Kentucky, Dept Earth & Environm Sci, Lexington, KY 40506 USA 9.Cochin Univ Sci & Technol, Sch Marine Sci, Dept Marine Geol & Geophys, Kochi 682016, Kerala, India |
| 推荐引用方式 GB/T 7714 | Ratheesh-Kumar, R. T.,Windley, B. F.,Xiao, W. J.,et al. Early growth of the Indian lithosphere: Implications from the assembly of the Dharwar Craton and adjacent granulite blocks, southern India[J]. PRECAMBRIAN RESEARCH,2020,336:28. |
| APA | Ratheesh-Kumar, R. T.,Windley, B. F.,Xiao, W. J.,Jia, X-L,Mohanty, D. P.,&Zeba-Nezrin, F. K..(2020).Early growth of the Indian lithosphere: Implications from the assembly of the Dharwar Craton and adjacent granulite blocks, southern India.PRECAMBRIAN RESEARCH,336,28. |
| MLA | Ratheesh-Kumar, R. T.,et al."Early growth of the Indian lithosphere: Implications from the assembly of the Dharwar Craton and adjacent granulite blocks, southern India".PRECAMBRIAN RESEARCH 336(2020):28. |
入库方式： OAI收割
来源：地质与地球物理研究所
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