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A new Carboniferous-Permian intra-oceanic subduction system in the North Tianshan (NW China): Implications for multiple accretionary tectonics of the southern Altaids
Bai, Xueyin1,2; Chen, Yichao2; Song, Dongfang1,2; Xiao, Wenjiao2,3; Windley, Brian F.4; Ao, Songjian1,2; Li, Liang2,3; Xiang, Dunfeng1,2
2020-02-17
Source PublicationGEOLOGICAL JOURNAL
ISSN0072-1050
Pages22
AbstractThe North Tianshan in NW China is a key to understanding the accretionary history of the southern Altaids. However, the tectonic setting of the North Tianshan in the Carboniferous-Permian is debatable, and its amalgamation history is ambiguous. We report new data on the field relations, geochronology and geochemistry of Carboniferous-Jurassic volcanic rocks and sedimentary rocks from the Shichang area in order to constrain the late Palaeozoic-Early Mesozoic tectonic evolution of the North Tianshan. New LA-ICP-MS zircon U-Pb dates demonstrate that the Carboniferous-Permian stratigraphy is a tectonic imbrication of Carboniferous-Permian rocks and Carboniferous volcanic rocks were emplaced in Permian volcano-sedimentary rocks. The 311 +/- 2 Ma volcanic rocks are calc-alkaline, enriched in Light Rare Earth Elements and large-ion lithophile elements, depleted in high-field-strength elements, and have low initial Sr-87/Sr-86 ratios with positive epsilon(Nd)(t)(+0.3 to +8.6)values. The geochemical-isotopic data suggest the volcanic rocks were generated in an intra-oceanic island arc. The turbidite samples 18SC02 (similar to 267 Ma to similar to 349 Ma) and 18SC09 (similar to 299 Ma to similar to 369 Ma) have a relatively narrow age range with no Devonian or Precambrian peaks. Our detrital zircon data suggest the presence of a so far unrecognized intra-oceanic arc, which was isolated from the main Yili-Central Tianshan and Mosuowan arcs in the Shichang area of the North Tianshan during the Late Carboniferous to Permian. The compiled detrital zircon data from Carboniferous to Jurassic indicates that the North Tianshan intra-oceanic arc was probably amalgamated with the Mosuowan arc by the Early Triassic, and then accreted to the Yili-Central Tianshan arc by the Middle-Late Triassic, as revealed by the changes of zircon provenance of Carboniferous, Permian, Triassic and Jurassic sedimentary rocks. All integrated data suggest that the southern Altaids most likely formed by processes of multiple subduction-accretion and convergence similar to that in the ongoing southwest Pacific.
KeywordAltaids Carboniferous-Permian intra-oceanic arc North Tianshan volcanic rocks
DOI10.1002/gj.3787
Funding OrganizationKey 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 Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; 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 Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; 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 Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; 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 Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences
WOS KeywordZIRCON U-PB ; VOLCANIC-ROCKS ; WESTERN TIANSHAN ; CENTRAL-ASIA ; CONTINENTAL GROWTH ; JUNGGAR BASIN ; YILI BLOCK ; SHRIMP CHRONOLOGY ; CRUSTAL GROWTH ; PALEOZOIC ACCRETION
Language英语
Funding ProjectKey Research Program of Frontier Sciences, CAS[QYZDJ-SSWSYS012] ; National Key R&D Program of China[2017YFC0601206] ; National Natural Science Foundation of China[41888101 41230207] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18020203]
Funding OrganizationKey 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 Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; 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 Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; 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 Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; 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 Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000513843800001
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95639
Collection岩石圈演化国家重点实验室
Corresponding AuthorXiao, Wenjiao
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China
4.Univ Leicester, Dept Geol, Leicester, Leics, England
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Bai, Xueyin,Chen, Yichao,Song, Dongfang,et al. A new Carboniferous-Permian intra-oceanic subduction system in the North Tianshan (NW China): Implications for multiple accretionary tectonics of the southern Altaids[J]. GEOLOGICAL JOURNAL,2020:22.
APA Bai, Xueyin.,Chen, Yichao.,Song, Dongfang.,Xiao, Wenjiao.,Windley, Brian F..,...&Xiang, Dunfeng.(2020).A new Carboniferous-Permian intra-oceanic subduction system in the North Tianshan (NW China): Implications for multiple accretionary tectonics of the southern Altaids.GEOLOGICAL JOURNAL,22.
MLA Bai, Xueyin,et al."A new Carboniferous-Permian intra-oceanic subduction system in the North Tianshan (NW China): Implications for multiple accretionary tectonics of the southern Altaids".GEOLOGICAL JOURNAL (2020):22.
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