松辽盆地坳陷期湖盆层序地层研究  

SEQUENCE STRATIGRAPHIC ANALYSIS OF THE DEPRESSION STAGE OF THE NORTHERN SONGLIAO BASIN

作　　者：赵波[1] 张顺[1] 林春明[2] 卓弘春[3] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [2]成矿作用研究国家重点实验室、南京大学地球科学系,江苏南京210093 [3]国土资源部经济研究院环境室,北京101149

出　　处：《地层学杂志》2008年第2期159-168,共10页Journal of Stratigraphy

基　　金：973项目白垩纪地球表层系统重大地质事件与温室气候变化(No2006CB701400)资助

摘　　要：以横跨松辽盆地北部东西向大剖面为例,综合应用钻井岩芯、测井曲线、古生物和地震资料,进行松辽盆地北部坳陷期(早白垩世晚期—晚白垩世)湖盆层序地层学研究,共识别出2个二级层序界面和13个三级层序界面,划分出2个二级层序和13个三级层序。2个二级层序以姚家组底界不整合面为界,自下而上命名为SSI、SSII。Using drilling core, well logs, palaeontology and seismic data, we carried out a comprehensive sequence stratigraphic investigation of the Cretaceous successions along the east-west section in the northern Songliao Basin. The depression stage of the Yaojia Formation in the northern SongLiao Basin can be divided into 2 second-order sequences and 13 third-order sequences. The research indicates that second-order sequence boundaries are related to tectonic activity and are regional angular unconformity surfaces or disconformity surfaces. Third-order sequence boundaries are characterized by depositional breaks and minor erosions. They correspond to conformity surface in the central basin.

关 键 词：层序地层学 二级层序 三级层序 层序界面 坳陷期 白垩纪 松辽盆地 黑龙江 

分 类 号：P534.53[天文地球—古生物学与地层学] P539.2[天文地球—地质学]