摘要
研究区在石炭系黄龙期处于潮坪—浅海碳酸盐台地环境沉积,主要发育岩石类型为晶粒白云岩和颗粒白云岩。根据区域构造演化特征,将研究区划分为潮上、潮间、潮下带3个亚相,以及膏云坪、泥云坪、藻云坪、灰云坪、潮间颗粒滩、潮下颗粒滩和灰坪7个微相。沉积相的展布表现出由闭塞或相对闭塞环境向半闭塞或开阔浅海环境过渡。
The carboniferous system at the west of Mount. Huaying is carbonate platform deposit which covers un- conformably on the Silurian with environment deposit of tidal flat and shallow marine carbonate platform. According to regional tectonic evolution, this paper divides it into 3 sedimentary facies （supratidal, intertidal and subtidal） and 7 microfacies （gypsodolomite flat, mud flat, algae dolomite flat, dolomitic -limemud flat, intertidal beach, subtidal beach, limemud fiat）. Sedimentary facies distribution exhibits occlusion or relatively isolated from the en- vironment to the semi - occlusive or open shallow water environment transition.
出处
《重庆科技学院学报（自然科学版）》
CAS
2015年第4期31-36,共6页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
西南油气田分公司基金项目"四川盆地石炭系油气成藏条件
有利区带与勘探目标评价"(2008ZX05004-05-01)
关键词
华蓥西
石炭系
黄龙组
沉积环境
west of Huaying mountain
carboniferous system
Huanglong formation
sedimentary facies
