贵州罗甸纳水上石炭统(宾夕法尼亚亚系)地层的再研究

本文详细描述了贵州罗甸纳水上石炭统(宾夕法尼亚亚系)剖面的生物地层和年代地层，其牙形刺序列自上而下可详细划分为：Streptognathodus isolatus, S. wabaunsensis, S. tenuialveus, S. firmus, Idiognathodus nashuiensis , Streptognathodus simulator, S. guizhouensis , S. gracilis-S, excelsus , S. cancellosus , S. clavatulus , S. nodocarinatus , Idiognathodus podolskensis , Mesogondolella clarki -Idiognathodus robustus , Diplognathodus ophanus-D, ellesmerensis, Idiognathoides ouachitensis, Streptognathodus expansus, Idiognathoides sulcatus parva, Idiognathodus primulus-Neognathodus bassleri, Idiognathodus primulus-Neognathodus symmetricus, Neognathodus symmetricus, Idiognathoides corrugatus-I, pacificus, I. sinuatus, I. sulcatus sulcatus, Declinognathodus noduli ferus 和 Gnathodus bilineatus bollandensis 等带。 Declinognathodus noduliferus 和 Streptognathodus isolatus 的首次出现分别代表上石炭统(宾夕法尼亚亚系)和二叠系的开始。根据牙形刺和有孔虫的序列，罗甸纳水剖面的上石炭统(宾夕法尼亚亚系)地层自下而上可划分为罗苏阶(Luosuan)、滑石板阶(Huashibanian)、达拉阶(Dalaan)和马平阶(Mapingian)，并可与俄罗斯的巴什基尔阶(Bashkirian)、莫斯科阶(Moscovian)、卡西莫夫阶(Kasimovian)和格舍尔阶(Gzhelian)，北美的莫罗阶(Morrowan)、阿托克阶(Atokan)、得梅因阶(Desmoinesian)、密苏里阶(Missourian)和弗吉尔阶(Virgilian)进行对比。另外，本文也详细讨论了剖面中的石炭系中间界线及石炭-二叠系界线。

Restudy of the Upper Carboniferous(Pennsylvanian) Strata from Nashui of Luodian,Guizhou

This paper describes in detail the Upper Carboniferous (Pennsylvanian) biostratigraphic and chronostratigraphic strata from the Nashui section, Luodian of Guizhou.They can be subdivided,in the descending order, into: the Streptognathodus isolatus, S. wabaunsensis, S. tenui- alveus, S. firmus, Idiognathodus nashuiensis, Streptognathodus simulator, S. guizhouensis, S. gracilis-S. excelsus, S. cancellosus, S. clavatulus, S. nodocarinatus, Idiognathodus podolskensis, Mesogondolella clarki-Idiognathodus robustus, Diplognathodus ophanus-D. ellesmerensis, Idiognathoides ouachitensis, Streptognathodus expansus, Idiognathoides sulcatus parva, Idiognathodus primulus-Neognathodus bassleri, Idiognathodus primulus-Neognathodus symmetricus, Neognathodus symmetricus, Idiognathoides corrugatus-I. pacificus, I. sinuatus, I. sulcatus sulcatus , Declinognathodus noduliferus and Gnathodus bilineatus bollandensis zones. The first occurrences of Streptognathodus isolatus and Declinognathodus noduliferus represents the bases of Permian and Upper Carboniferous, respectively. Based on the fusulinid and conodont zones, the Upper Carboni- ferous strata in the Nashui section can be subdivi- ded , in the descending order, into the Maping, Dalaan, Huashiban and Luosuan stages. Accor- ding to the conodont zones the Upper Carboniferous strata from Nashui can be corralated with the Gzhelian, Kasimovian, Moscovian and Bashkirian in Russian, and the Virgilian, Missourian, Desmoinesian, Atokan and Morrowan in North America.