摘要
通过钻井资料、野外露头、录井、测井等资料的综合应用,系统识别出陆源碎屑滨岸、混积台地、碳酸盐岩台地、斜坡-盆地是四川盆地灯影组主要的沉积相类型。盆地内灯影组二段及四段主要以碳酸盐台地沉积为特征,可细分为碳酸盐潮坪、颗粒滩、灰泥丘、局限泻湖亚相。通过建立沉积模式表明,灯影组大致经历海侵-海退-海侵的沉积旋回,一段至二段为海侵阶段,三段为海退阶段,四段为海侵阶段。
Through a comprehensive analysis and systematically identification of drilling, logging and core, clastic shore, mixed clastic-carbonate platform, carbonate platform and slope-basin are the major types of sedimentary facies in Dengying Formation of Sichuan basin. The carbonate platform is the major type of sedimentary facie in Deng 2 Member and Deng 4 Member. It can be divided into 4 sub-facies： carbonate tidal flat, grain shoal, plaster mound and restricted lagoon. Through the establishment of sedimentary patterns suggested that transgressive-regressive-transgressive sedimentary cycle in Dengying Formation： Deng 1 Member and Deng 2 Member are the transgressive stages, Deng 3 Member are the regressive stage, Deng 4 Member is the regressive stage.
出处
《地质调查与研究》
2016年第4期241-248,共8页
Geological Survey and Research
基金
中国石油科技创新基金研究项目"深层碳酸盐岩粒间孔型滩相储层的发育规律及预测模型研究(2015D-5006-0107)"
关键词
沉积模式
沉积相
灯影组
四川盆地
sedimentary pattern
sedimentary facies
Dengying formation
Sichuan basin
