华南下/中奥陶统界线附近笔石动物群的图形对比研究  

Graphic correlation of graptolite fauna near the Lower/Middle Ordovician boundary in South China

作　　者：王传尚[1] 汪啸风[1] 陈孝红[1] 李志宏[1] 张淼[1] 

机构地区：[1]宜昌地质矿产研究所,湖北宜昌443003

出　　处：《中国地质》2009年第4期783-789,共7页Geology in China

基　　金：国家自然科学基金项目(40742008和40272020);中国地质调查局地质大调查项目(1212010782005)联合资助

摘　　要：在下/中奥陶统界线附近笔石的生物地层学研究基础上,笔者选择了华南地区奥陶系台地相、盆地相和位于二者之间的过渡相等不同沉积相区5条典型地层剖面,开展了华南下/中奥陶统界线附近笔石动物群的图形对比研究,通过这项研究,进一步明确了华南奥陶系下/中奥陶统界线附近笔石动物群的延限和不同相区笔石动物群的精确对比关系,为开展不同相区之间地层的精确对比奠定了基础。Based on the biostratigraphic study of graptolites near the Lower/Middle Ordovician boundary, the authors selected five typical stratigraphic section in such Ordovician sedimentary facies of South China as platform facies, basin facies and the transitional facies between the above two facies to conduct graphic correlation of the graptolite faunae near the Lower/Middle Ordovician boundary. The results shed further light on the duration of graptolite faunae near the Lower/Middle Ordovician botmdary in South China and the precise correlation of graptolite faunae in different facies, thus laying a foundation for the precise stratigraphic correlation of different facies.

关 键 词：下/中奥陶统界线 笔石 不同相区 图形对比 

分 类 号：P534.42[天文地球—古生物学与地层学]