摘要
综合应用岩心、测井及露头剖面等资料,在松辽盆地上白垩统识别出古暴露面、冲刷面、岩性岩相转换面、同种岩性颜色变化界面等4种类型的层序界面,并描述了层序界面的野外露头、钻井岩心及测井曲线的识别特征.研究认为：大型冲刷面和长期、中长期暴露面可作为长期或中期基准面旋回的层序界面;中小型冲刷面、间歇暴露面、岩性—岩相转换面及颜色变化界面可作为短期或超短期基准面旋回的层序界面.
By means of comprehensively adopting the data of core, well logging, outcrop sections and so on, four types of the sequence boundaries are identified in Upper Cretaceous of Songliao Basin ： palaeo-exposed surface, sur- face of scour, lithologcal and lithofacies converting surfaces, color changed interfaces for the same lithology, and meantime the recognizing characteristics of the field outcrops, drilled cores and logs of the sequence interfaces are described. The studies show that the large-scaled eroded surfaces and long or medium-term exposed surfaces can be regarded as the sequence interfaces of the long-term or medium-term base-level cycles; while the small-scaled ero- ded surfaces, interval exposed surfaces, the inverting interfaces and color changed interfaces can be used as the se- quence interfaces of the short-term or super-short-term base-level cycles.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2014年第4期1-8,共8页
Petroleum Geology & Oilfield Development in Daqing
基金
国家自然科学基金项目“松辽盆地北部晚白垩世古土壤的综合识别及地层对比意义”(41202072)
关键词
松辽盆地
上白垩统
高分辨率
层序地层
古暴露面
冲刷面
Songliao Basin
Upper Cretaceous Series
high-resolution
sequence stratum
paleo/palaeo- exposed
