An early Paleozoic accumulation-foundering cycle of ultramafic cumulates in the Harlik arc and its implications for continental crustal growth in the Altaids
文献类型：期刊论文
| 作者 | Li, Liang5; Xiao, Wenjiao2,3,4; Windley, Brian F.1; Zhao, Guochun5,6; Yang, He4; Sang, Miao4; Jia, Xiaoliang4 |
| 刊名 | LITHOS
 |
| 出版日期 | 2023-12-15 |
| 卷号 | 462页码:16 |
| ISSN号 | 0024-4937 |
| 关键词 | Harlik arc Magmatic thickening Ultramafic cumulates Foundering Crustal growth |
| DOI | 10.1016/j.lithos.2023.107404 |
| 英文摘要 | Lower crustal ultramafic cumulates that are normally denser than the ambient mantle peridotites are prone to founder back into the convecting mantle, prompting the formation of continental Moho and andesitic crust at subduction zones. However, foundering events of ultramafic cumulates have not been widely reported in island arcs, including the Altaids, one of the largest accretionary orogens. The Altaids involved prominent continental crustal growth by the development of an archipelago in the Phanerozoic. But the scarcity of foundering events of ultramafic cumulates hinders a better understanding of the formation mechanism of andesitic crust in the Altaids. In this study, we report two dioritic plutons in the Harlik arc, southern Altaids, trying to identify the accumulation-foundering cycles of dense ultramafic cumulates. LA-ICP-MS dating revealed that the Miaoergou and Banfanggou plutons in the Harlik arc were intruded at ca. 445 +/- 6 Ma and 423 +/- 4 Ma, respectively. The homogeneous Miaoergou pluton is mainly composed of quartz diorites, they have a high- to medium-K calcalkaline composition, and show enrichments in light rare earth elements (LREE) and large ion lithophile elements (LILE), but depletions in high field strength elements (HFSE, especially Nb and Ta) and heavy rare earth elements (HREE). They also have juvenile isotopic signatures (epsilon Nd(t) = +3.3 - +3.7, initial 87Sr/86Sr = 0.70399-0.70452), which together suggest that they were derived from fractional crystallization of the coeval hydrous basaltic magmas in an arc setting. The heterogenous Banfanggou pluton comprises a spectrum of lithologies from hornblende gabbro to diorite. The hornblende gabbros and diorites have a high- to medium-K calc-alkaline composition, and show enrichments in LREE and LILE, but depletions in HREE and HFSE. They all have juvenile isotopic compositions with epsilon Nd(t) ranging from +3.5 to +4.2, and (87Sr/86Sr)i from 0.70384 to 0.7047, respectively, indicating that their parental magmas were intruded in a subduction-related setting, and underwent fractional crystallization of clinopyroxene, plagioclase, amphibole and quartz. Both pulses of hydrous basaltic magmatism involved open-system conditions, with the development of mafic microgranular enclaves (MMEs) in the diorites and their mingling. In a synthesis of the published data, we found that the Harlik arc was continuously affected by subduction in the early Paleozoic, through extensive arc magmatism from ca. 452 to 440 Ma, the Harlik arc matured with the accumulation of thick ultramafic cumulates in its lower crust. The foundering of these ultramafic cumulates occurred later, which led to strong extension and related A-type granitic magmatism at ca. 436 Ma. This accumulation-foundering cycle of ultramafic cumulates facilitated the formation of andesitic composition and continental Moho in the Harlik arc, and contributed to the significant continental crustal growth in the Altaids. |
| WOS关键词 | NW CHINA CONSTRAINTS ; EASTERN TIANSHAN ; KANGGUERTAGE OPHIOLITE ; OROGENIC BELT ; MAGMATIC ARC ; CENTRAL-ASIA ; EVOLUTION ; SUBDUCTION ; XENOLITHS ; GARNET |
| 资助项目 | National Natural Science Foundation of China[42202236] ; National Natural Science Foundation of China[42072269] ; National Natural Science Foundation of China[41730213] ; National Natural Science Foundation of China[41890831] ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China[2021A03001] ; International Partnership Program of Chinese Academy of Sciences[131551KYSB20200021] ; Hong Kong RGC GRF[17307918] ; HKU Internal Grants for Member of Chinese Academy of Sciences[102009906] ; HKU Internal Grants for Member of Chinese Academy of Sciences[102010100] ; China Postdoctoral Science Foundation[2022M722565] ; Light of West China Program of Chinese Academy of Sciences (CAS)[2017-XBQNXZ-B-013] ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China[2020D04041] |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001110358700001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; Science and Technology Major Project of Xinjiang Uygur Autonomous Region, China ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; Hong Kong RGC GRF ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; HKU Internal Grants for Member of Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Light of West China Program of Chinese Academy of Sciences (CAS) ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China ; Open Project of Key Laboratory, Xinjiang Uygur Autonomous Region, China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111174]  |
| 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.Univ Leicester, Sch Geog Geol & Environm, Leicester LE1 7RH, Leicestershire, England 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China 5.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Peoples R China 6.Univ Hongkong, Dept Earth Sci, Hongkong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Liang,Xiao, Wenjiao,Windley, Brian F.,et al. An early Paleozoic accumulation-foundering cycle of ultramafic cumulates in the Harlik arc and its implications for continental crustal growth in the Altaids[J]. LITHOS,2023,462:16. |
| APA | Li, Liang.,Xiao, Wenjiao.,Windley, Brian F..,Zhao, Guochun.,Yang, He.,...&Jia, Xiaoliang.(2023).An early Paleozoic accumulation-foundering cycle of ultramafic cumulates in the Harlik arc and its implications for continental crustal growth in the Altaids.LITHOS,462,16. |
| MLA | Li, Liang,et al."An early Paleozoic accumulation-foundering cycle of ultramafic cumulates in the Harlik arc and its implications for continental crustal growth in the Altaids".LITHOS 462(2023):16. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。