我国西南地区震旦系灯影组碳酸盐岩石学特征及其储集性  

ON CARBONATE ROCKS OF THE SINIAN DENGYING FORMATION IN SOUTHWEST CHINA WITH RESPECT TO THEIR CHARACTERISTICS AND RESERVIOR BEHAVIOR

作　　者：杨万容[1] 唐天福[1] 张俊明[1] 丘金玉[1] 周仰康[1] 

机构地区：[1]中国科学院南京地质古生物研究所

出　　处：《地球化学》1978年第4期247-260,316-319,共18页Geochimica

摘　　要：In the present paper a brief account is given of the depositional characteristics,the classification, the deuterodiagenetic changes and the reservior behavior of the carbonate rocks in the Sinian Dengying Formation in Southwest China. The authors have come to the conclusions: (1) During the Dengying age, this region was, as a whole, covered by a vast expanse of epicontinental sea; while in central Sichuan and northern Guizhou spread a great mass of shallow-water carbonate platform, and in western Hunan and Hubeiwas a still water basin. (2) In the Dengying Formation, dolomites are of eonnate deposits. The thallophyta seem apparently to have plaid an important role in the rock-forming and in the reef-building. (3) Thin-bedded algal dolomites with botryoidal structure were deposited on the Siehuan-Guizhou carbonate platform. As characterized by the presence of bedded reef or hicstrome, this type of dolomites is more or less of interest to the study of stratigraphy.In the present paper a brief account is given of the depositional characteristics,the classification, the deuterodiagenetic changes and the reservior behavior of thecarbonate rocks in the Sinian Dengying Formation in Southwest China. The authors have come to the conclusions: (1) During the Dengying age, this region was, as a whole, covered by a vastexpanse of epicontinental sea; while in central Sichuan and northern Guizhou spreada great mass of shallow-water carbonate platform, and in western Hunan and Hubeiwas a still water basin. (2) In the Dengying Formation, dolomites are of connate deposits. The thallo-phyta seem apparently to have plaid an important role in the rock-forming and in thereef-building. (3) Thin-bedded algal dolomites with botryoidal structure were deposited. on theSichuan-Guizhou carbonate platform. As characterized by the presence of bedded reefor biostrome, this type of dolomites is more or less of interest to the study ofstratigraphy.

关 键 词：震旦系 碳酸盐岩 地层层序学 储集性 

分 类 号：P588.245[天文地球—岩石学]