摘要
德兴地区怀玉地体前震旦纪变质地层可分为２群６组。下部海相火山碎屑岩夹细碧角斑岩建造称铜厂群，含东坑组、铁罗山组和杜村组，代表中元古代怀玉地体边缘裂陷槽沉积；上部陆源碎屑为主的泥砂质复理石建造及陆相火山岩称登山群，含小浮溪组、拔竹坑组和上墅组，代表新元古代怀玉地体边缘海沉积及火山喷发。在区域上可与邻区相对比。
Abstract The presinian metamorphosed strata in the Huaiyu Terrane of Dexing area are divisible into two groups and six formations.The marine volcaniclastic rocks with spilitekeratophyre in the lower part is called the Tongchang Group,which is subdivisible into the Dongkeng Formation,the Tieluoshan Formation and the Ducun Formation,representing a Middle Proterozoic aulacogen deposit on the margin of the Huaiyu Terrane.The argillo-arenaceous flysch and nonmarine volcanic rocks dominated by detrital material of terrigenous origin in the upper part is called the Dengshan Group,which consists of the Xiaofuxi Formation,the Bazhukeng Formation and the Shangshu Formation,representing the Neo-Protorozoic marginal sea deposit and volcanic eruption in the Huaiyu Terrane.
出处
《江西地质》
1999年第2期85-92,共8页
Jiangxi Geology
