大庆石油地质与开发2018，Vol.37Issue(2)：15-25,11.DOI:10.19597/J.ISSN.1000-3754.201801015
四川盆地震旦系灯影组微生物丘沉积演化特征
SEDIMENTARY AND EVOLUTIONARY CHARACTERISTICS OF SINIAN DENGYING-FORMATION MICROBIAL MOUND IN SICHUAN BASIN
摘要
Abstract
Microbial mound is the principal hydrocarbon accumulation facies-belt in Dengying Formation of Sichuan Basin.Based on the core and outcrop observation,the main types of the rock and special structures in the microbial mound were summarized by means of the thin section identification and X-ray diffraction (XRD).The results show that the main lithologies of the mound include laminite,stromatolite,spongiostromata-type dolomite,thrombolite,cyanobacteria bound-frame dolomite,cyanobacteria related dolomite,cyanobacteria related carbonate breccia,etc.and the frame-like structure is an important sedimentary structure in the microbial mound;the microbial mound can be divided into five microfacieses:mound base,mound core,mound flat,mound cap,mound flank,mainly based on the changes of the sea level,three kinds of the vertical depositional laws were summarized:mound base-mound coremound cap,mound base-mound core-mound flat and mound base-mound core-mound flank.关键词
微生物丘/格架状构造/微生物丘沉积模式/震旦系灯影组/四川盆地Key words
microbial mound/frame-like structure/microbial-mound depositional model/Sinian Dengying Formation/Sichuan Basin分类
能源科技引用本文复制引用
徐哲航,兰才俊,杨伟强,诸丹诚,马肖琳,邹华耀..四川盆地震旦系灯影组微生物丘沉积演化特征[J].大庆石油地质与开发,2018,37(2):15-25,11.基金项目
中国科学院战略性先导科技专项“四川盆地重点地区深层油气运移机理与富集规律”(XDA14010306)和中国石油化工股份有限公司项目“四川盆地优质储层成因机理及其分布预测研究”(P16108). （XDA14010306）
