塔里木盆地阿满地区断裂构造分析  

Analysis of Faulting Structure in Aman Area in Tarim Basin

作　　者：刘亚雷[1,2] 胡秀芳 刘云翔[4] 王月然[4] 文磊[2] 张强[2] 李曰俊[2] 

机构地区：[1]恒泰艾普石油天然气技术服务股份有限公司,北京100084 [2]中国科学院地质与地球物理研究所,北京100029 [3]中国石油大学<古地理学报>编辑部,北京100083 [4]中国石油塔里木油田分公司,新疆库尔勒841000

出　　处：《新疆石油地质》2013年第5期531-533,共3页Xinjiang Petroleum Geology

基　　金：国家科技重大专项(2011ZX05028-003)

摘　　要：通过精细地震资料解释,认为塔里木盆地阿满地区主要发育二叠纪的正断层,构造样式以"堑垒构造"为主;可能发育寒武纪—早奥陶世伸展构造和中晚奥陶世挤压构造,但因后期构造破坏,这两期断裂构造很难在地震剖面上识别出来。研究区断裂构造在白垩纪最终定型。寒武纪伸展构造与罗迪尼亚超大陆的裂解有关;中晚奥陶世的挤压构造状态成因为昆仑加里东运动期(—早海西运动期)的碰撞造山作用;早二叠世伸展构造与受大火成岩省影响的地幔柱活动产生的岩浆活动有关;白垩纪,研究区断裂构造不发育,地层稳定沉积,为构造定型期。在此基础上,总结了阿满地区的构造演化特征和油气勘探前景。The fine seismic data interpretation shows that the Permian normal fault is mainly developed in Aman area in Tarim basin, and its tectonic style is dominated by ＂graben and horst＂; the Cambrian-Early Ordovician stretching structure and the Middle-Late Ordovician compressional structure may also exist, but unable to be recognized on the seismic profiles due to late-stage destruction, all of which finally came to being a stabilized state in Cretaceous in the study area. It is suggested that the Cambrian stretching structure is related with the cracking of Rodinia supercontinent; the Middle-Late Ordovician compression structure is shaped due to the Caledonian-Early Hercynian collision orogenesis of the Kunlnn mountains; Early Permian stretching structure is a product of the volcanic activities caused by mantle plume movements in the large igneous province. Contrastively, in the Cretaceous, the faults stop growing and the strata deposit stably into almost unchanged sizes in the study area. Finally, the structural evolution characteristics and the oil exploration prospect in Aman area are discussed.

关 键 词：塔里木盆地 阿满地区 伸展构造 挤压冲断构造 构造演化 

分 类 号：TE111.2[石油与天然气工程—油气勘探]