地质科学2012，Vol.47Issue(3)：700-713,14.
海拉尔—塔木察格盆地中部断陷带构造演化与富油构造带成因机制分析
Analysis on tectonic evolution and genetic mechanism of oil-rich structural belt at middle fault depression belt in Hailer-Tamtsag Basin
摘要
Abstract
Hailer Basin and Tamtsag Basin belonging to China and Mongolia respectively, have a uniform tectonic setting and basin evolution process in structure. To analysis the process of tectonic evolution and its control on hydrocarbon accumulation, on the basis of establishment of basin forming background, standing on middle fault depression belt, basin sedimentary filling pattern, basin properties and basin superimposed evolution process were studied, then formation mechanism of oil-rich structural belts in different phases and the control of structural evolution on hydrocarbon accumulation were analyzed in this paper. Research shows that Hailer-Tamtsag Basin consists of residual basin and passive rift basin, which include Tongbomiao group and Nantun-Qingyuangang group respectively. Passive rift basin consists of four phases,initial rifting period (lower K1n1) .strong rifting period (upper K1n1 and K1n2) , rift-depression transformation period(K1d and K1γ) .depression period(K2q). The tilting-uplift zones controlled by simple shearing stress during initial rifting period are favorable exploration directions in lower hydrocarbon system. The central uplift belts and central anticlinal zones controlled by pure shear extension during strong rifting period are favorable exploration directions in middle hydrocarbon system. The fault-condensed belts controlled by extension-shear during rift-depression period indicate hydrocarbon accumulation and enrichment sites in lower and middle hydrocarbon systems. The various types of in versed structural zones controlled by compression-inversion during late Yimin and the depression period indicate adjusted accumulation and hydrocarbon enrichment sites in upper hydrocarbon system.关键词
海拉尔—塔木察格盆地/盆地性质/构造演化/富油构造带/成因机制Key words
Hailer-Tamtsag Basin/ Basin properties/ Tectonic evolution/ Oil-rich structural belt/Genetic mechanism分类
天文与地球科学引用本文复制引用
孙永河,史盼盼,杨帆,袁红旗,杨勉..海拉尔—塔木察格盆地中部断陷带构造演化与富油构造带成因机制分析[J].地质科学,2012,47(3):700-713,14.基金项目
高等学校博士学科点专项科研基金课题"海拉尔—塔木察格盆地被动裂谷盆地成因机制研究"(编号:20112322120002)资助. （编号:20112322120002）
