Structure, evolution and regional tectonic implications of the Queshan metamorphic core complex in eastern Jiaodong Peninsula of China
Structure, evolution and regional tectonic implications of the Queshan metamorphic core complex in eastern Jiaodong Peninsula of China
复制标题
胶东鹊山变质核杂岩的结构、演化及其区域构造意义
DOI：
10.1007/s11430-015-5259-3
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发表时间：
2016-01
期刊：
影响因子：
--
通讯作者：
Wu Yun
中科院分区：
文献类型：
--
作者：
Xia ZengMing;Liu JunLai;Ni JinLong;Zhang TingTing;Shi XingMing;Wu Yun
鹊山MCC是胶东半岛东部沿着北CC东南缘早白垩世地壳伸展构造的一个重要实例。MCC是一个典型的科迪勒拉型核杂岩，具有三层结构：（1）上板块由白垩纪超拆离盆地和古元古代基底组成;（2）下板块由新太古代高级变质杂岩和晚中生代花岗质侵入体组成;（3）两个板块被一条主拆离断层分隔。一系列晚NNE向脆性断裂叠加并破坏了早期MCC。岩石学、几何学、运动学、宏观和微观构造以及石英c轴组构表明，在近WNW-ESE区域伸展体制下，MCC经历了从中下地壳到次表层（经中上地壳）的渐进折返历史。我们提出的构造和年代学证据，以限制从约确山MCC折返。135至113 Ma。在综合分析胶东、辽东半岛不同伸展构造样式的基础上，确定了胶辽早期伸展区，并将其地壳伸展划分为两个阶段：第一阶段为中下地壳强烈流动阶段，第二阶段为中上地壳伸展阶段。结合构造背景，胶辽早白垩世伸展区岩石圈减薄可视为东亚区域伸展作用下壳幔拆离断裂响应的典型模式。
The Queshan MCC is an important example of a crustal extensional structure in the eastern Jiaodong Peninsula along the southeastern margin of the NCC in the Early Cretaceous. The MCC is a typical Cordilleran-type core complex with a three-layered structure: (1) the upper plate is constituted by the Cretaceous supradetachment basin and Paleoproterozoic basement; (2) the lower plate comprises the Neoarchean high-grade metamorphic complexes and late Mesozoic granitic intrusions; and (3) the two plates are separated by a master detachment fault. A series of late NEN-oriented brittle faults superimposed on and destructed the early MCC. Petrology, geometry, kinematics, macro- and micro-structures and quartz c-axis fabrics imply that the MCC has a progressive exhumation history from middle-lower to subsurface level (via middle-upper crustal level) under the nearly WNW-ESE regional extensional regime. We present structural and geochronological evidence to constrain the exhumation of the Queshan MCC from ca. 135 to 113 Ma. Based on the comprehensive analysis of the different patterns of extensional structures in the Jiaodong and Liaodong Peninsula, we have defined the Jiao-Liao Early Cretaceou extensional province and further divided the crustal extension of it into two stages: the first stage was the intense flow of the middle-lower crust and the second stage was the extension of the middle-upper crust. Combining the tectonic setting, the lithosphere thinning in the Jiao-Liao Early Cretaceous extensional province can be considered a typical model for the response of crust-mantle detachment faulting under regional extension in East Asia.
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中国东部大别造山带北部早白垩世造山带韧性岩石圈平行伸展的构造和年代学证据
影响因子：
3.1
作者：
Xiang, Biwei;Wang, Yongsheng;Zhu, Guang;Jiang, Dazhi
通讯作者：
Jiang, Dazhi
DOI：
10.1007/bf02875393
发表时间：
2001-11
期刊：
Science in China Series D: Earth Sciences
影响因子：
--
作者：
Guang Zhu;Chuanzhong Song;Daoxuan Wang;Guosheng Liu;Jiawei Xu
通讯作者：
Guang Zhu;Chuanzhong Song;Daoxuan Wang;Guosheng Liu;Jiawei Xu
影响因子：
5.8
作者：
A. Draut;P. Clift
通讯作者：
A. Draut;P. Clift
DOI：
--
发表时间：
2008
期刊：
Acta Geological Sinica
影响因子：
--
作者：
Zhang Yueqiao
通讯作者：
Zhang Yueqiao
影响因子：
5.7
作者：
Rixiang Zhu;Chen Ling;FuYuan Wu;Junlai Liu
通讯作者：
Rixiang Zhu;Chen Ling;FuYuan Wu;Junlai Liu