石油实验地质2016,Vol.38Issue(6):796-802,7.DOI:10.11781/sysydz201606796
火山-碎屑充填盆地的层序地层学研究--以松辽盆地长岭断陷为例
Sequence stratigraphic research of volcanic and clastic sediment basins:A case study of Changling Fault Depression in Songliao Basin
摘要
Abstract
The Early Cretaceous is complicated and hard to compare since it was influenced by multiple tectonic movements and volcanism. In order to resolve the problems mentioned above, we studied stratum structure and sequence stratigraphy based on freshly obtained outcrop, core, well logs, seismic and dating data, using basic principles of sequence stratigraphy and sedimentology. The kinetic mechanism and volcanism in this area were also considered in the research. Some identification methods for dual⁃structure basins with “volcanic rocks and sedimentary rocks” were put forward, and the stratigraphic sequence framework of the Early Cretaceous in the Changling Fault Depression was set up. Three sequence patterns were proposed: volcanic fault lake sequence, gentle slope composed of “volcanic and sedimentary rocks” in a dual structure sequence, and “volcanic and sedimentary rocks” constitute straticulate ( finely laminated) sequence. These sequence patterns have a guiding significance for identifying source, reservoir and cap rock assemblages.关键词
层序构成样式/层序地层学/火山碎屑盆地/早白垩世/长岭断陷/松辽盆地Key words
sequence stratigraphic pattern/sequence stratigraphy/volcanic debris basin/Early Cretaceous/Changling Fault Depression/Songliao Basin分类
能源科技引用本文复制引用
王苗,陆建林,左宗鑫,王保华,李浩,张彦霞..火山-碎屑充填盆地的层序地层学研究--以松辽盆地长岭断陷为例[J].石油实验地质,2016,38(6):796-802,7.基金项目
中国石化科技开发部项目“长岭断陷结构与充填特征及成藏组合研究”( P13073)资助。 ()