[1]王 凯,等.天山造山带东段构造变形对增生造山末期的响应[J].大地构造与成矿学,2018,(优先出版):001-17.[doi:10.16539/j.ddgzyckx.2019.05.001]
 WANG Kai,JI Wenhua,et al.Deformation in Eastern Tianshan Orogenic Belt and its Response to the Final Stage of Accretionary Orogenesis[J].Geotectonica et Metallogenia,2018,(优先出版):001-17.[doi:10.16539/j.ddgzyckx.2019.05.001]
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天山造山带东段构造变形对增生造山末期的响应
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《大地构造与成矿学》[ISSN:ISSN 1001-1552/CN:CN 44-1595/P]

卷:
期数:
2018年优先出版
页码:
001-17
栏目:
出版日期:
2019-12-30

文章信息/Info

Title:
Deformation in Eastern Tianshan Orogenic Belt and its Response to the Final Stage of Accretionary Orogenesis
作者:
王 凯1 2 计文化1 孟 勇1 张 欣1 朱晓辉1 李 平1
(1.中国地质调查局 造山带地质研究中心, 中国地质调查局 西安地质调查中心, 陕西 西安 700054; 2.中国科学院 新疆生态与地理研究所 矿产资源研究中心, 新疆 乌鲁木齐 830011)
Author(s):
WANG Kai1 2 JI Wenhua1 MENG Yong1 ZHANG Xin1 ZHU Xiaohui1 and LI Ping1
(1. Research Center for Orogenic Geology, Xi’an Center of Geological Survey, Geological Survey of China, Xi’an 710054, Shaanxi, China; 2. Xinjiang Research Center for Mineral Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, Xinjiang, China)
关键词:
天山造山带东段 二叠纪晚期?三叠世 构造解析 三向汇聚
Keywords:
eastern segment of Tianshan Late Permian to Middle Triassic structural analysis three-direction convergence
DOI:
10.16539/j.ddgzyckx.2019.05.001
文献标志码:
A
摘要:
天山造山带位于中亚造山带最南端, 是研究和认识中亚造山带晚古生代增生造山过程的关键地区。本文聚焦于天山造山带东段发育最晚一期的脆韧性构造变形, 通过对阿其克库都克断裂带、康古尔断裂带和哈尔里克构造带等变形带内的构造几何学和运动学特征解析, 认为阿其克库都克断裂带表现为由南向北逆冲兼右行剪切变形特征, 康古尔断裂带表现为南北向挤压兼右行剪切变形特征, 哈尔里克构造带表现为由北向南的逆冲叠加稍晚期的左行走滑剪切变形特征。结合大量已有的构造热年代学数据分析, 指出各构造单元内最晚一期脆韧性变形时间为二叠纪晚期至中三叠世, 指示该时间段内近东西走向的天山造山带东段和北西?东走向的东准噶尔造山带与西侧哈萨克斯坦弧形造山系呈现为三向汇聚的动力学特征, 代表中亚造山带增生造山末期的演化特征。
Abstract:
As the southernmost part, the Tianshan Orogenic Belt is one of the key parts to study the accretionary orogenesis of the Central Asian Orogenic Belt (CAOB). This paper focuses on the latest phase of brittle-ductile deformation in the eastern Tianshan by analysing the geometry and kinematics of deformation in the Aqqikkuduk fault zone, the Kangguer fault zone and the Harlik zone. Our analysis shows that the Aqqikkuduk fault zone is characterized by northward thrusting with dextral strike-slip motion; the Kangguer fault zone is characterized by N-S compression with dextral strike-slip motion; and the Harlik zone is characterized by southward thrusting with superimposed sinistral strike-slip motion. Our analysis, in combination with a large number of published thermochronological data, suggests that during the late Permian to Middle Triassic, the roughly E-W striking eastern segment of Tianshan converged on the NW-SE striking Eastern Junggar Belt on the Kazakhstan orocline to the west, forming a ‘Three-direction convergence’ tectonic system. The convergence represents the spatial adjustment between tectonic units during the final stage of accretionary orogenesis of the CAOB.
更新日期/Last Update: 2019-08-11