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主办单位:中国地质调查局西安地质调查中心
中国地质学会

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西昆仑麻扎构造混杂带变形特征

任清军, 刘顺, 康孔跃, 杨伟

任清军, 刘顺, 康孔跃, 等. 西昆仑麻扎构造混杂带变形特征[J]. 西北地质, 2014, 47(4): 88-94.
引用本文: 任清军, 刘顺, 康孔跃, 等. 西昆仑麻扎构造混杂带变形特征[J]. 西北地质, 2014, 47(4): 88-94.
REN Qing-jun, LIU Shun, KANG Kong-yue, et al. The Deformation Characteristics of Mazha Tectonic Melange in West Kunlun[J]. Northwestern Geology, 2014, 47(4): 88-94.
Citation: REN Qing-jun, LIU Shun, KANG Kong-yue, et al. The Deformation Characteristics of Mazha Tectonic Melange in West Kunlun[J]. Northwestern Geology, 2014, 47(4): 88-94.

西昆仑麻扎构造混杂带变形特征

基金项目: 

新疆1:5万J43E022021等5幅区调(1212011120539)

详细信息
    作者简介:

    任清军(1985-), 男, 工程师, 四川绵阳人, 主要从事区域地质调查工作.E-mail:xren@163.com

  • 中图分类号: P548.2

The Deformation Characteristics of Mazha Tectonic Melange in West Kunlun

  • 摘要: 麻扎构造混杂带南北边界断裂具有明显的韧性变形特征,笔者通过野外区域地质调查重新对混杂带边界断裂建立了新的认识,认定南北边界断裂具有早期韧性剪切与晚期脆性活动的多期次构造活动特征.早起韧性剪切发育了大量糜棱岩化与不对称旋转碎斑现象.通过对北边界断裂火山弧岩块的岩石化学分析,得出了麻扎构造混杂岩带内大量出露的岩浆岩形成于板块边缘的岛弧构造环境的结论.
    Abstract: South and north boundary faults of the Mazha tectonic melange belt have obvious deformation and toughness. Through field regional geological survey, the author aimed to establish a new understanding of the mixed boundary fault zone, and found that the north and south boundary faults have multiple periods of tectonic features of early ductile shear and late brittle activities. The early ductile shear developed a lot of mylonitization and asymmetry rotated porphyroclast phenomenon. Through the petrochemical analysis on north boundary fault arc volcano rock, it is concluded that the widespread magmatite in Mazha tectonic melange belt formed in the island arc tectonic environment on the edge of the plate.
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出版历程
  • 收稿日期:  2014-06-09
  • 修回日期:  2014-10-19
  • 网络出版日期:  2022-07-28
  • 发布日期:  2014-12-04

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