乌尔逊凹陷下切谷的特征及成因  

The seesaw structure model for forming and filling of incise valley in Wuerxun depression

作　　者：杨懋新[1] 戴跃进[2] 李清仁[1] 王成[2] 孔凡忠[2] 

机构地区：[1]大庆石油管理局地球物理勘探公司,黑龙江大庆163357 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2003年第5期11-12,共2页Petroleum Geology & Oilfield Development in Daqing

摘　　要：发育在海拉尔盆地乌尔逊凹陷东部斜坡上南屯组地层中的下切谷,是在区域水进背景下形成,谷内进积、反韵律的充填特点,与经典的同类地质现象迥然不同,同时在区域上也无法简单地用“顺源堆积”来解释,为此在充分分析了它的地震资料和沉积特征基础上,从凹陷的构造演化角度出发,提出了一个翘倾构造成因模式,进一步强调了构造作用在断陷盆地层序的形成中所占据的重要地位。The incise valley developed in Nantun formation of east-ern slope of Wuerxun depression is obviously different from the classical one because it formed in regional trend of water plane ris-ing and filled with reverse rhythmicity. It cann' t be interpreted by sedimentary in the source direction too. The paper suggests a see-saw structure modei to explain forming and filling of incise valley.

关 键 词：下切谷 乌尔逊凹陷 模式 南屯组 

分 类 号：TE121.1[石油与天然气工程—油气勘探]