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三塘湖盆地断裂构造特征
引用本文:鲁海鸥,袁炳强,李玉宏,张春灌,申晨. 三塘湖盆地断裂构造特征[J]. 新疆石油地质, 2012, 33(3): 293-296
作者姓名:鲁海鸥  袁炳强  李玉宏  张春灌  申晨
作者单位:1. 西安石油大学油气资源学院,西安,710065
2. 中国地质调查局西安地质调查中心,西安,710054
基金项目:中国地质调查局新疆东部主要含煤区煤碳资源综合评价项目
摘    要:利用实测重力资料,结合地震、地质等研究成果,对三塘湖盆地断裂及构造特征进行定性和定量研究认为,盆地中2条主断裂呈北西向展布,坳陷带内的北西、北北西、北东、近东西和近南北向的次级断裂切断了主断裂;由于盆地长期处于挤压应力之下,使得盆地整体呈"两隆夹一坳"的构造格局,坳陷带因受断裂活动影响,形成了凹凸相间分布。三塘湖盆地经过多期构造运动改造,构造复杂,断裂发育,断层控制中、新生代沉积盖层的分布。

关 键 词:三塘湖盆地  重力异常特征  断裂构造

Characteristics of Fault Structures in Santanghu Basin
LU Hai-ou,YUAN Bing-qiang,LI Yu-hong,ZHANG Chun-guan,SHEN Chen. Characteristics of Fault Structures in Santanghu Basin[J]. Xinjiang Petroleum Geology, 2012, 33(3): 293-296
Authors:LU Hai-ou  YUAN Bing-qiang  LI Yu-hong  ZHANG Chun-guan  SHEN Chen
Affiliation:1(1.School of Petroleum Resources,Xi’an Petroleum University,Xi’an,Shaanxi 710065,China;2.Xi’an Center of Geologic Survey,China Geologic Survey,Xi’an,Shaanxi 710054,China)
Abstract:The faults and Structures in Santanghu basin were studied qualitatively and quantitatively by means of observed gravitational data,seismic and geologic research results.It is suggested that two major faults in this basin are distributed in NW direction,which are cut off by the secondary faults in NW,NNW,NE,near-EW and near-SN in the depression zone.Under the long-term compressional stress,this basin assumes such structural framework as "two uplifts and one depression",and impacted by the faulting activities,the depression belt appears distribution in sag-swell alternation.It is concluded that having undergone the multi-stage tectonic movements,Santanghu basin is characterized by complex structures,faults development,the Mesozoic and Cenozoic sedimentary cap rocks distribution controlled by the faults.
Keywords:Santanghu basin  gravitational abnormal feature  fault structure
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