2014•Dizhi tongbaoRequires access
A study of Late Carboniferous-Early Permian Fusulinids fauna from Akqi area, Xinjiang
Xing Huang, Zhu Fei, Xionghua Zhang, Liu Xiao-huang, Zhao Zhi-Gang, Kou Xiao-hu, Baozhong Yang
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Abstract
在塔里木盆地西北缘的阿合奇地区晚石炭世-早二叠世地层中发现大量的(筵)类化石,共计18属61种,另有较多未定种,自下而上建立了4个(筵)带,依次为Pseudostaffella带、Profusulinella带、Fusulinella-Fusulina带和Pseudoschwagerina带.各(筵)带与华南、帕米尔达尔瓦兹等地能很好的对比,且(筵)类动物群面貌与华南地区相似.根据(筵)类化石确定别根他乌组为晚石炭世早中期罗苏期-达拉期,康克林组为晚石炭世晚期小独山期-早二叠世紫松期,将该区石炭系、二叠系的界线置于71层底部.石炭纪末期区域上海退和古地形的影响导致(筵)带Triticites带的缺失.