摘要
绥滨地区的主期构造形成于穆棱组沉积后的逆冲—褶皱作用,主要受那丹哈达岭地体向大陆拼贴挤压的变形作用控制。通过研究早白垩纪末逆冲—褶皱构造的主要形迹可知,主期构造特征表现为受盲冲断裂控制的背、向斜构造,形成了断弯褶皱、断展褶皱、断滑褶皱3种构造样式。在松花江以北,构成一个自北西西向南东东逆冲的逆冲—褶皱系统,控制了地层起伏的格架。在松花江以南,马架屯—东林屯、四方林子断裂,控制了轴向近南北的大型箱状褶皱,褶皱顶部削蚀强烈。松1、松2断裂不仅在新生代大规模活动,而且在穆棱组期末的构造运动中也起到了对区域构造格架的控制作用,松1—松2断裂南北逆冲—褶皱系统的逆冲方向相反。该成果将对黑龙江省东部中新生代盆地的构造演化和原形盆地恢复具有重要指导意义。
Main structures formed after the Muleng Formation depositing in Suibin area appearing to be thrusting and folding, controlled by the compressional deformation of Pacific domain when Nadanhada Terrace collided to the continent. Main structures were anticline and syncline controlled by blind thrust faults on studying typical relic of thrusting and folding in the end of early Cretaceous, forming curved folding, extending folding and sliding. North to Songhuajiang river, thrust-fold systems thrusting from NWW to SEE controlled strata fluctuation. South to tun- Donglintun fault and Sifanglinzi fault developed, which controlled the large roughly NS Songhuajiang river, Majiastriking boxlike folds, the tops of which are strongly denudated. Along Songhuajiang river, Songl and Song2 faults activated not only in Cenozoic but also in the end of Muleng Formation, controlling regional structural circumstances. Thrusting directions were contrary between north and south of these two thrust faults. This paper will direct structural evolution and prototype basin recovery of the Cenozoic and Mesozoic basins in the east of Heilongjiang province.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2007年第5期9-13,共5页
Petroleum Geology & Oilfield Development in Daqing
关键词
绥滨坳陷
晚中生代
逆冲断裂
褶皱构造
Suibin depression
late Mesozoic
thrust folds
folding structure
