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Mesozoic Thermo-Tectonic Evolution of the Western Altai Orogenic Belt (NW China): Insights from Low-Temperature Thermochronology

文献类型：期刊论文

作者Wu, Mingxuan5,6; Yin, Jiyuan5; He, Zhiyuan4; Xiao, Wenjiao2,3; Wang, Yannan1; Chen, Wen5; Wang, Yamei5,6; Sun, Jingbo5; Li, Dapeng6; Meng, Yun5,6
刊名LITHOSPHERE
出版日期2023-07-01
卷号2023页码:16
ISSN号1941-8264
DOI10.2113/2023/8161000
英文摘要The Meso-Cenozoic tectonic activities of the Central Asian Orogenic Belt (CAOB) played an important role in controlling the present-day topography of Central Asia. The Altai orogenic belt is a key component in the southern CAOB; so far, there is still a lack of sufficient constraints on the time and mechanism of its tectonic reactivation since the Mesozoic. In this contribution, we present new zircon and apatite (U-Th)/He and apatite fission track thermochronological data from granitoid samples in the Habahe area, western Altai orogenic belt. Therein zircon (U-Th)/He ages range from similar to 230 to similar to 238 Ma, apatite fission track central ages are similar to 140-157 Ma, and apatite (U-Th)/He ages vary from similar to 134 to similar to 149 Ma. Based on the associated thermal history modeling results, the Habahe area underwent a moderate cooling during the Late Triassic to Middle Jurassic (similar to 230-170 Ma) with a cooling rate of similar to 0.8-1.1./Ma and a subsequent moderate to slightly rapid cooling stage during the Middle Jurassic to Early Cretaceous (170-130 Ma) with a cooling rate of similar to 1.5-2.3./Ma. We propose that this prolonged cooling stage occurred under a long-lasting contractional tectonism in the western Altai throughout the early Mesozoic, which was produced by multiplate convergence in East Asia during this period, mainly including the consumption of the Mongol-Okhotsk Ocean in the northeast and the Meso-Tethys Ocean in the south. The region experienced rather limited Late Cretaceous-Cenozoic cooling and exhumation due to insufficient reactivation and weak surficial erosion.
WOS关键词APATITE (U-TH)/HE THERMOCHRONOMETRY ; NORTHERN TIEN-SHAN ; FISSION-TRACK ; EXHUMATION HISTORY ; CENOZOIC TECTONICS ; RADIATION-DAMAGE ; NORTHWEST CHINA ; JUNGGAR REGION ; CENTRAL-ASIA ; U-PB
资助项目China Geological Survey[DD20230213] ; National Natural Science Foundation of China[42127801] ; National Natural Science Foundation of China[41830216] ; National Natural Science Foundation of China[41873060] ; National Key Research and Development Project[2019YFA0708601] ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences[J2207]
WOS研究方向Geochemistry & Geophysics ; Geology
语种英语
WOS记录号WOS:001081779600001
出版者GEOSCIENCEWORLD
资助机构China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/110748]  
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Yin, Jiyuan; He, Zhiyuan
作者单位1.Hebei Univ Engn, Key Lab Resource Explorat Res Hebei Prov, Handan 056038, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China
4.Univ Ghent, Dept Geol, Lab Mineral & Petr, B-9000 Ghent, Belgium
5.Chinese Acad Geol Sci, Inst Geol, MNR Key Lab Deep Earth Dynam, Beijing 100037, Peoples R China
6.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Mingxuan,Yin, Jiyuan,He, Zhiyuan,et al. Mesozoic Thermo-Tectonic Evolution of the Western Altai Orogenic Belt (NW China): Insights from Low-Temperature Thermochronology[J]. LITHOSPHERE,2023,2023:16.
APA Wu, Mingxuan.,Yin, Jiyuan.,He, Zhiyuan.,Xiao, Wenjiao.,Wang, Yannan.,...&Meng, Yun.(2023).Mesozoic Thermo-Tectonic Evolution of the Western Altai Orogenic Belt (NW China): Insights from Low-Temperature Thermochronology.LITHOSPHERE,2023,16.
MLA Wu, Mingxuan,et al."Mesozoic Thermo-Tectonic Evolution of the Western Altai Orogenic Belt (NW China): Insights from Low-Temperature Thermochronology".LITHOSPHERE 2023(2023):16.

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来源：地质与地球物理研究所

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