Thermo-Tectonic History of Archean Basement Rocks in the Aktash Tagh, Southeastern Tarim Craton: Constraints From Zircon U-Pb, Zircon and Apatite Fission-Track Dating

被引：0
作者：
Hu, Xiao [1 ]
He, Zhiyuan [2 ]
Xu, Ganqing [3 ]
De Grave, Johan [2 ]
Ge, Rongfeng [1 ]
Li, Guangwei [1 ]
Zhu, Wenbin [1 ]
机构：
[1] Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing, Peoples R China
[2] Univ Ghent, Dept Geol, Lab Mineral & Petrol, Ghent, Belgium
[3] Univ Waikato, Sch Sci Earth Sci, Hamilton, New Zealand
来源：
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS | 2025年 / 26卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Tarim Craton; Archean basement rocks; zircon; apatite; fission-track thermochronology; NORTHERN ALTYN TAGH; ASIAN OROGENIC BELT; DUNHUANG BLOCK; NW CHINA; PRECAMBRIAN BASEMENT; TIEN-SHAN; RADIATION-DAMAGE; TIBETAN PLATEAU; THRUST BELT; SOUTHWESTERN TARIM;
D O I：
10.1029/2024GC011483
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Stable craton lithosphere can undergo complex tectonic events at its margins due to peripheral tectonic activity. In this study, we conducted a comprehensive analysis of zircon U-Pb dating, apatite and zircon fission-track thermochronology on the Aktash Tagh complex in the southeastern margin of the Tarim Craton. The obtained apatite fission-track ages range from similar to 219 Ma to similar to 104 Ma, while the zircon fission-track ages span from similar to 1,400 Ma to similar to 100 Ma. The zircon U-Pb ages from double dating of 261 grains range from similar to 3.6 Ga to similar to 1.9 Ga. The complexity of our zircon fission-track ages is attributed to the presence of both high-retentive zircons and low-retentive zircons. High-retentive zircons indicate that the samples have not been exposed to temperatures above the zircon fission-track reset temperature (similar to 350 degrees C) since about 1.0 Ga. We can identify in the study area reheating events at similar to 2.0-1.9 Ga and post 1.4 Ga, as well as cooling events at similar to 1.9-1.8 Ga, similar to 1.4 Ga, and similar to 1.0 Ga. We conducted inverse thermal history modeling using QTQt software that revealed two significant thermo-tectonic events: (a) rapid rock cooling during the Middle to Late Jurassic, and (b) renewed rapid cooling from the Oligocene to the present day. The former cooling event may have been related to the collision between the Lhasa Block and the southern margin of Asia, while the latter is generally linked to the far-field effects of the India-Eurasia collision.
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页数：27
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