赣北威宁期(竹蜓)类动物群及其分带

<正> 江西北部晚石炭世早期(威宁期)地层出露在武宁—彭泽、萍乡—乐平和上饶地区,大致呈北东向分布。按岩性、岩相组合的不同,可以分成二种类型(图1)。一是与宁镇山脉黄龙组极为相似的碳酸盐地层,称“黄龙组型”,另一是浙江江山一带碎屑岩夹碳酸盐岩的藕塘底组在江西东部的延伸,称“藕塘底组型”。前者分布于武宁—彭泽区及萍乡—乐平区,后者仅分布于上饶以南地区,二者大致以江山—上饶大断裂为界。

Weiningian fusulinid fauna from northern Jiangxi and Its zonation

This paper deals with 3 sections of the fusulinid-bearing rocks of the Huanglong Formation, one of which is exposed at Xiangshan in Pengze county of Wuning-Pengze district, and the remaining two at Shikanwei in Shanggao county and Wangjiawu in Jingdezhen of Pingxiang-Leping district respectively. Based on the stratigraphic distribution of fusulinids, 2 zones and 5 subzones are recognized in ascending order as follows:Ⅰ.Profusulinella Zone Profusulinella fukujiensis and Profusulinella simplex Subzones;Ⅱ.Fusulinella-Beedeina Zone Fusulinella praebocki, Beedeina cheni, and Fusultna quasicylindrica Subzones.