两淮地区奥陶系沉积相及相模式  

The Ordovician Sedimentary Facies and Facies Models in Lianghuai Region of Anhui

作　　者：陆彦邦 李勇[1] 王栋[1] 杨清和[1] 喻根[1] 

机构地区：[1]安徽省地质科学研究所

出　　处：《安徽地质》1994年第3期48-56,共9页Geology of Anhui

摘　　要：安徽两淮地区，奥陶系发育良好，以浅水碳酸盐岩为主，根据岩石类型、结构、构造、生物和剖面结构特征，可划分潮坪、局限潮下、浅滩、开阔潮下４个相带及２２个主要碳酸盐微相类型。碳酸盐相模式为均斜缓坡类型。The Ordovician strata are well developed in Lianghuai region of Anhui,which are mainly carbonate rocks.According to characteristics of lithology,biota and depositional sequence,they can be divided into 4 facies,such as tidalflat,restricted subtidal,shoal,open subtidal, and 22 microfacies,Carbonate facies models belong to the homoclinal ramp,one type of carbonate ramp.

关 键 词：两淮地区 沉积相 碳酸盐相模式 均斜缓坡 

分 类 号：P534[天文地球—古生物学与地层学]