摘要
渣尔泰群、白云鄂博群与辽北汛河流域中上元古界中陆源碎屑普遍较多,三者沉积序列相同、岩石组合相似、含有相同的叠层石组合,为靠近古陆边缘同沉积断裂活动较强的环境形成的。它们与燕山地区中上元古界均属陆台沉积盖层,可以对比。应以燕山中上元古界划分标志对渣尔泰群、白云鄂博群划分对比。
Chaertai group,Beiyunebo group and the Middle to Late Proterozoic suceession on the watershed area of Xing river in North Liaoning,these three different stratigraphic units are common more or less in higher abundance of terrigenous setritus,succession of deposition,assemblage of lithology and particularity of stromatolite,in genetic terms,being attributed to the strong synsedimcntary faulting typical of margins of old lands.More than capable of being correlated with one another,they are with the Middle to Late Proterozoic sequence in Yanshan region as well,both standing for a platform type of sedimentary cover.However,when correlation is made between Beiyunebo and Chaertai units,it is desirable to adopt the marks used once to divide and compare Yanshan unit.
出处
《化工矿产地质》
CAS
1995年第3期158-164,共7页
Geology of Chemical Minerals
