摘要
齐古背斜隶属于准噶尔盆地南缘山前褶皱冲断带,是受燕山期和喜山期造山活动作用的结果。齐古背斜构造变形强烈,深浅构造相互叠加,构造演化序列难以确定,与相邻背斜间的构造转换关系不甚清楚。本文运用现代构造地质学的理论,通过断层相关褶皱几何学分析方法,配合平衡地质剖面技术,以地表露头和实测资料为约束条件,对过齐古背斜的地震剖面进行了构造几何建模,确定了齐古背斜的合理变形样式,在此基础上完成了地震剖面的构造精细解释,厘清了主要构造变形时期断裂体系的分布与构造继承关系,最终构建出齐古背斜的三维构造地质数字模型。
Qigu Anticline belong to the Foreland Fold and thrust belt of southern margin of the Junggar Basin,is the result by the Yanshan and Himalayan orogenic activity. Anticline structure complex, due to the depth structure superimposed on each other, tectonic evolution of the sequence is difficult to determine,especially the structural relationship is unclear. Based on the the modern geological structural theories and fault related folding theories, geometry analysis method,balance geological section technology, Combining the outcrop and measured data, complete the fine structure interpretation of Qigu Anticline. Identified the main period of tectonic deformation and set up a reasonable fracture system,eventually constructed a three-dimensional geological model of Qigu Anticline.
出处
《科技通报》
北大核心
2017年第12期60-64,共5页
Bulletin of Science and Technology
基金
国家自然科学基金面上项目(41372139
41072098)
国家科技重大专项(2011ZX05018-001-002
2016ZX05046-003-001)
关键词
齐古背斜
准噶尔盆地南缘
断层相关褶皱
构造演化
qigu anticline
southern margin of the junggar basin
fault related fold
tectonic evolution
