塔里木西南坳陷石炭──二叠纪沉积体系及与油气的关系

CABONIFEOUS──PERMIAN PERIOD DEPOSITION SYSTEM AND DEVELOPMENT IN THE WESTEN OF TARIM BASIN

在对区内三十余条剖面及钻井资料的全面系统的分析研究的基础上，结合地震资料，认为石炭一二叠纪为一个完整的海进至海退旋回。在海进初期和海退末期为碳酸盐岩和碎屑岩混积时期，因此，本文首次使用“混积陆棚”的概念，将石炭一二叠系划分为下石炭统（个别地区的下二叠统下部）沉积陆棚沉积体系；上石炭统至下二叠统下部的碳酸盐岩台地沉积体系；下二叠统上部至上二叠统的陆源碎屑沉积体系，并从沉积相的角度探讨了有利的传集相带和生油相带。

By analysis of thirty measured section and well drilling information, wegot these conclusion as follow,there are three types of deposition systemfrom carboniferous period to permian period: i) mixing shalf deposi-tionsystem: ii ) carb0nate platform deposition system; iii )terrestrialdepositi0n system. By the sedimentaryenvironments could be classified as benfit reservoir faciesand sourcefacies.