库车褶皱冲断带克拉苏三角带的位移转换构造

杨明慧; 金之钧; 吕修祥; 孙冬胜

库车褶皱冲断带克拉苏三角带的位移转换构造

杨明慧^{1, 2},
金之钧³,
吕修祥^{1, 2},
孙冬胜^{1, 2}

1.
石油大学盆地与油藏研究中心, 北京 102249
2.
石油天然气成藏机理教育部重点实验室, 北京 102249
3.
中国石化石油勘探开发研究院, 北京 100083

基金项目:

国家“十五”重点科技攻关项目 2001BA605A-02-03-03-04

详细信息

作者简介:
杨明慧(1962-), 男, 副教授, 主要从事盆地构造分析方面的研究

中图分类号: P54
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出版历程
- 收稿日期: 2003-06-22
- 刊出日期: 2004-03-25

Displacement Transfer Zone of Kelasu Triangle Zone, Kuqa Thrust-and-Fold Belts in Tarim Basin

1.
Basin & Reservoir Research Center, University ofPetroleum, Beijing 102249, China
2.
Key Laboratory for Hydrocarbon Accumulation, Ministry ofEducation, Beijing 102249, China
3.
Exploration & Production Research Institute, SEPRI, Beijing 100083, China

摘要

摘要: 根据对库车褶皱冲断带的地面地质调查和地震反射剖面的解释表明, 库车褶皱冲断带克拉苏三角带发育垂直构造走向的位移转换构造.在地面上, 位移转换构造分别表现为库姆格列木、巴什基奇克和开依雷艾肯背斜以及吐孜麻扎、喀桑托开和吉迪克背斜构造的走向侧接构造样式; 在地下表现为库-巴冲断层、喀桑托开冲断层的断距的反接关系.位移转换构造发育的动力学背景可能与南天山重力滑动构造有关.
- 位移转换构造 /
- 克拉苏三角带 /
- 库车褶皱冲断带 /
- 塔里木盆地
Abstract: The field observation and seismic data interpretation reveal that the displacement transfer zone is developed in the Kelasu triangle zone, Kuqa thrust-and-fold belts. The displacement transfer zone appears as relay ramps of the Kumugeliemu anticlines, Bashijiqike anticlines, Kaiyileiaiken anticlines to the north and Tuzimazha anticlines, Kasangtuokai anticlines, and Jidike anticlines to the south on the surface, respectively. Under the subsurface, it appears as throw deviation of Kumugeliemu-Bashijiqike thrusts and Kasangtuokai thrusts. Its dynamic occurrence may be related to the gravitational slide structures along the southern Chinese Tianshan front ranges.
- displacement transfer zone /
- Kelasu triangle zone /
- Kuqa thrust-and-fold belt /
- Tarim basin

HTML全文

图 1 库车褶皱冲断带克拉苏三角带构造位置

阴影为库车褶皱冲断带, 其中小方框为本文研究区

Fig. 1. Location of Kelasu triangle zone in Kuqa thrust-and-fold belts, Tarim basin

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图 2 库车褶皱冲断带克拉苏构造带地质图

1.前三叠系; 2.三叠系; 3.侏罗系; 4.白垩系; 5.库姆格列木群; 6.苏维依组; 7.吉迪克组; 8.康村组; 9.库车组; 10.西域组; 11.更新统-全新统; 12.断层; 13.褶皱(背斜、向斜); 14.地层界线; 15.位移转换构造发育位置; 16.钻井; ①卡赞齐向斜; ②库姆格列木背斜; ③巴什基奇克背斜; ④图舍科依向斜; ⑤吐孜麻扎背斜; ⑥喀桑托开背斜

Fig. 2. Geological map of Kelasu triangle zone in Kuqa thrust-and-fold belts, Tarim basin

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图 3 构造横剖面解释(剖面位置见图 4)

Fig. 3. Structural cross sections based on seismic interpretation

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图 4 克拉苏地区构造分层偏移

1.构造等值线; 2.冲断层; 3.地面褶皱(喀桑托开背斜、图舍科依向斜) 轴向; 4.钻井

Fig. 4. Structure contour map on top of Bashijiqike Formation, Kelasu area

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图 5 平衡剖面的序列恢复(KC-Z60)

a.侏罗-白垩纪; b.库姆格列木期; c.苏维依期; d.吉迪克期; e.康村期; f.库车期; 现今构造样式见图 4中的KC-Z60, 剖面阴影为后期被侵蚀殆尽的地层

Fig. 5. Sequential palinspastic restorations of balanced cross sections (KC-Z60)

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图 6 南天山山前三叠系(a) 和侏罗系(b) 中发育的浅层重力滑动构造

Fig. 6. Gravitational slide structures showing in Triassic (a) and Jurassic (b), south Tianshan mountains front ranges

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图 7 克拉苏地区断层的倾向背离(显示2个冲断层之间的位移转换关系)

实心正方形、三角形分别为喀桑托开冲断层和库-巴冲断层的断距

Fig. 7. Dip-separation diagram of Kelasu area, illustrating inverse relationship in displacement between Kasangtuokai anticline and Kumugeliemu-Bashijiqike anticlines indicative of displacement transfer

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