[1]能源,李勇,谢会文,等.库车前陆盆地盐下冲断带构造变换特征[J].新疆石油地质,2019,(01):54.[doi:10.7657/XJPG20190108]
 NENG Yuan,LI Yong,XIE Huiwen,et al.Tectonic Transformation Characteristics of Subsalt Thrust Belts in Kuqa Foreland Basin[J].Xinjiang Petroleum Geology,2019,(01):54.[doi:10.7657/XJPG20190108]
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库车前陆盆地盐下冲断带构造变换特征()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
期数:
2019年01期
页码:
54
栏目:
出版日期:
2019-02-01

文章信息/Info

Title:
Tectonic Transformation Characteristics of Subsalt Thrust Belts in Kuqa Foreland Basin
文章编号:
1001-3873(2019)01-0054-07
作者:
能源1李勇2谢会文2石奎太3任承豪4
(1.中国石油大学 克拉玛依校区,新疆 克拉玛依 834000;2.中国石油 塔里木油田分公司 勘探开发研究院,新疆 库尔勒 841000;3. 中国石油 东方地球物理公司 深海物探处,天津 300457;4.中国石油 东方地球物理公司 西南物探分公司,成都 610213)
Author(s):
NENG Yuan1 LI Yong2 XIE Huiwen2 SHI Kuitai3 REN Chenghao4
(1.Karamay Institute, China University of Petroleum, Karamay, Xinjiang 834000, China; 2.Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China; 3.Deep-Sea Geophysical Prospecting, BGP, CNPC, Tianjin 300457, China; 4.Southwest Geophysical Exploration Company, BGP, CNPC, Chengdu, Sichuan 610213, China)
关键词:
库车前陆盆地盐下冲断带构造变换带分段变形特征
Keywords:
Kuqa foreland basin subsalt thrust belt tectonic transfer zone segmentation and deformation characteristic
分类号:
TE111.2
DOI:
10.7657/XJPG20190108
文献标志码:
A
摘要:
库车前陆盆地是发育在南天山山前的中—新生代含盐前陆盆地,受造山作用、基底先存构造、盐岩分布等要素的影响,盆地内部具有明显的南北分带、东西分段变形特征,特别是位于库车前陆盆地北部克拉苏含盐前陆冲断带内发育多种类型构造变换带。利用最新的二维和三维地震及钻井、野外露头资料,分析总结了库车前陆盆地内前陆冲断带的变形样式及构造变换特征。研究结果表明,自南天山至盆地内部,库车前陆盆地具垂向分层变形特征,其中盐下冲断带主要集中于南天山至拜城凹陷,根据变形方式可以划分为3个变形带,分别为垂向抬升断褶带、斜向冲断楔形带及近水平挤压滑脱带;库车前陆盆地盐下冲断带可以分为乌什段、阿瓦特段、博孜段、大北段、克深段及克拉3段6个构造段,共发育走滑型、边缘型、生长型及混合型4类变换带。总体上看,东西向一级变换带多为走滑型及混合型,控制了构造带的分布,二级变换带多为边缘型及走滑型,控制了构造带内各构造段的差异分布,三级变换带多为生长型,控制了局部构造的分布。
Abstract:
Kuqa basin is a Mesozoic-Cenozoic salt-bearing foreland basin developed in the piedmont area of the southern Tianshan Mountains. Influenced by orogenesis, pre-existing structures in the basement and salt rocks, Kuqa foreland basin is characterized by belts along N-S orientation and segments along W-E orientation, leading to the forming of different styles of tectonic transfer zones in Kelasu salt-bearing foreland thrust belt in the northern part of the basin. Based on the latest data of 2D and 3D seismic, drilling and field outcrops, the paper analyzes and summarizes the deformation styles and tectonic transfer characteristics of the foreland thrust belt in Kuqa foreland basin. The study results show that Kuqa foreland basin is featured with vertical stratification and deformation from the southern Tianshan Mountains to the interior of the basin, and the subsalt thrust belts are mainly distributed in the area from the southern Tianshan Mountains to Baicheng sag, which can be divided into 3 deformation zones, i.e., vertically uplifting fault-fold zone, inclined thrust wedge-like zone and nearly-horizontal compressing detachment zone according to their transfer styles. The subsalt thrust belt is divided into 6 structural segments such as Wushi segment, Awat segment, Bozi segment, Dabei segment, Keshen segment and Kela-3 segment, where 4 types of transfer zones are developed, namely strike slip type, margin type, growth type and complex type. In conclusion, the E-W trending, first-order transfer zones are dominated by complex type and strike-slip type, controlling the distribution of main tectonic zones. The margin type and strike slip type are the dominant of subordinate tectonic transfer zones, controlling the distribution of different tectonic segment. And most of the third-order transfer zones belong to growth type, which controls the distribution of local structures
更新日期/Last Update: 2019-01-22