江西省上白垩统会昌膏盐段的建立

Establishment of Huichang Gypsum-salt Member in the Late Cretaceous in Jiangxi Province

江西上白垩统地层中发育一套含膏盐层细碎屑岩组合,属典型的气候事件沉积层,其岩性组合特殊,明显区别于周田组内其余部分岩性,而且分布广,具一定规律性,故将其单独划出,新建会昌膏盐段。文中阐述了建段的理由,介绍了名称来源、层型剖面、地层的延伸与对比,讨论了地质时代。这对提高陆相红盆研究程度和指导填图找矿都具有重要意义。

A suite of fine-grained clastic rocks and gypsum-salt association is developed in the Late Cretaceous stratum in Jiangxi Province which belongs to typical climate-event deposit stratum. It takes on especial lithological association and different obviously from other rocks in Zhoutian Formation. It is comprehensive distribution and has certainly disciplinarian. So that it is separated from Zhoutian Formation and established separately to Huichang gypsum-salt member. This paper indicates the reasons of establish member and introduces its origin and stratotype section, as well as its extend and correlation. At last, its geological age is discussed. It has an important meaning to improve the studies degree in continental red basins and conduct mapping and ore -searching.