Apatite Fission Track Thermochronology and Its Tectonic Significance in Balikuntage of Eastern Tianshan

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作者
Lu, Zongyue [1 ,2 ,3 ]
Yu, Xinqi [2 ]
Zhang, Feng [4 ]
Hu, Jun [2 ]
Wang, Zhaofan [5 ]
Zeng, Yan [6 ]
Sun, Kang [1 ,3 ]
Zhang, Wei [1 ,3 ]
机构
[1] Center for Geophysical Survey, China Geological Survey, Hebei, Langfang
[2] School of Earth Sciences and Resources, China University of Geosciences, Beijing
[3] Technology Innovation Center for Earth Near Surface Detection, China Geological Survey, Hebei, Langfang
[4] Civil-Military Integration Center of China Geological Survey, Sichuan, Chengdu
[5] Haikou Marine Geological Investigation Center of China Geological Survey, Hainan, Haikou
[6] Wuhan Surveying-geotechnical Research Institute Co., Ltd. of MCC, Hubei, Wuhan
关键词
apatite; Balikuntage; fission track; thermal history simulation;
D O I
10.16539/j.ddgzyckx.2024.04.002
中图分类号
学科分类号
摘要
In this paper, we present the tectonic evolution characteristics of Balikuntage in Eastern Tianshan on the basis of apatite fission track thermochronological analysis. The apatite fission track ages of (50±3) Ma to (58±5) Ma are obviously younger than the formation age of the rock mass, indicating that the samples underwent complete annealing. The average uplift rate of the four samples was 0.057 mm/a. The tectonic uplift in Balikuntage since Late Cretaceous can be divided into three stages. In the first stage (80–50 Ma), the mountain rose rapidly, responding to the accretion of Kohistan-Dras island arc in the Late Cretaceous and the initial collision between the Indian and Eurasian plates. In the second stage (50–20 Ma), the mountain was slowly uplifted. The third stage, 20 Ma to now, is the second rapid uplift period. The second and third stages were controlled by the far-range effects of the collision between the Indian and Eurasian plates. © 2024 Science Press. All rights reserved.
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页码:690 / 697
页数:7
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