摘要:
我国南方中上石炭统以碳酸盐岩为主,厚度大,分布广,岩相类型繁多,具有广阔的油气远景。文章阐明笔者对中国南方中晚石炭世沉积相特征及沉积环境模式的初浅认识,为寻找油气有利地带提供沉积方面的依据。本文研究范围北以秦岭-大别山为界,西至龙门山前及滇东地区,东南至沿海一带。一、沉积相特征中晚石炭世基本继承了早石炭世陆表海的特征,但受淮阳运动和昆明运动的影响,海侵范围扩展,古陆面积大为缩小。
Abstract:
Upper-Middle Carboniferous Series in the south of China is mainly carbonate with its extensive distribution, large thickness and various types of facies.Its main feature is that the carbonate platform facies develops well.Duriag this period, a shallow sea with basically normal salinity had been existing in this area, and the relief of the sea bottom was less distinct; thus, the circulation of water was unb- locked. However, there were still some basins with relatively deep water and quiet banks with shallow water within the platform.
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