摘要
以岩性、岩矿特征、粒度分布、剖面结构、地震反射特征、测井曲线形态等分析为基础,在盆地第三纪地层中识别出四种主要类型的砂体:河流砂体、肉三角洲砂体、三角洲砂体及滨岸砂体.进而在环境分析的基础上,建立陆架盆地断陷期和坳陷期的沉积模式。
In this paper, four types of sandstone bodies are recognized in the Tertiay of the Doughal Shelf Basin based on the analysis of the lithologic and mineral characters, grain distribution, sedimentary sequence, seismic reflection characters and well-log curve shapes. These are fluvial sandstone bodies, fan-delta sandstone bodies, delta sandstone bodies and lacustrine coastal sandstone bodies. Moreover, the sedimentary models in the stage of faulted subsidence and downward subsidence of the basin have been established based on the analysis of depositional environments.
出处
《青岛海洋大学学报(自然科学版)》
CSCD
1994年第2期271-280,共10页
Journal of Ocean University of Qingdao
关键词
陆架盆地
第三纪
砂体
沉积环境
Doughal Shelf Basin
Tertiary
sandstone bodies
sedimentary environments