摘要
重新研究了江西武宁官塘源五峰期地层剖面,将原五峰组和原新开岭组合二为一称为五峰组,并对五峰组的笔石带进行了修订:取消Paraorthograptusuniformis带,改称Dicelograptusszechuanensis带为Dicelograptuscomplexus带。修订后的笔石序列自下而上是:Dicelograptuscomplexus带、Tangyagraptustypicus带和Dicer-atograptusmirus带。
With the well developed Wufengian strata and transitional position between the Yangzi and Jiangnan Stratigraphic regions, the Xiushui gorge of the Jiangxi province has been regarded as one of the most important districts for the research of Wufengian graptolitic biostratigraphy in south China. In this paper, the Wufeng strata in the vicinity of the Guantangyuan village, Wuning conuty are restudied with some revisions of the defination and biozonation of the Wufeng Formation. The Xinling Formation and the Wufeng Formation previously used in this district are now incorperated into one Formation, ie. the Wufeng Formation, in which the Paraorthograptus uniformis zone is canceled and the Dicellograptus szechuanensis zone is replaced by the Dicellograptus complexus zone. Consequently, the graptolitic sequence after these revisions in the Wufeng Formation of Xiushui gorge could be arranged as follows with an ascending order: the Dicellograptus complexus zone, the Tangyagraptus typicus zone and the Diceratograptus mirus zone.
出处
《高校地质学报》
CAS
CSCD
1998年第3期318-323,共6页
Geological Journal of China Universities
基金
国家自然科学基金
关键词
笔石分带
五峰组
江西
修水流域
上奥陶统
地层
graptolite zonation, the Wufeng Formation, Xiushui gorge in Jiangxi.