准噶尔盆地周缘褶皱带形变特征  

Characteristics of fold deformation at edge of Junggar basin

作　　者：宋传春[1] 

机构地区：[1]中国石化股份胜利油田分公司西部新区研究中心,山东东营257000

出　　处：《油气地质与采收率》2012年第3期11-14,111,共4页Petroleum Geology and Recovery Efficiency

基　　金：国家科技重大专项"准噶尔盆地碎屑岩层系大中型油气田形成规律与勘探方向"(2011ZX05002-002)

摘　　要：准噶尔盆地作为大型复合叠加压扭型盆地,边界被南缘、西北缘和东北缘大型褶皱带所控制,整体研究程度相对较低。通过区域地震大剖面的构造解释,进一步明确了准噶尔盆地不同边界褶皱带的发育演化时期与形变特征的差异,其主形变期具有顺时针方向旋转特征。利用编制构造发育剖面的方法近似定量估算了盆地周缘褶皱带在不同地质时期的挤压收缩量以及盆地中生代以来总的挤压收缩量,并分析了盆地周缘褶皱带形变与构造幕的关系;在此基础上探讨了褶皱带形变的地质作用对盆地构造特征、沉积旋回和油气分布的影响。Junggar basin is a large complex superimposed pressure torsion basin,which is controlled by southern,northwestern and northeastern margins of the basin,and overall research degree is relatively low.It was further determined that different boundary folds created in different periods were characterized differently with the main deformation characteristics of a clockwise rotation through interpretation of seismic data.The squeezing shrinkage formed at different geologic periods and the total squeezing shrinkage is estimated quantitatively through mapping structure evolution profiles.And,the relationship between folds of basin margins and structure episode are also analyzed to discuss the geologic action of fold deformation.

关 键 词：周缘褶皱带 复合叠加压扭型盆地 构造演化 形变特征 构造幕 准噶尔盆地 

分 类 号：TE111.3[石油与天然气工程—油气勘探]