湖北建始黄岩及邻区二叠系大隆组生态地层ECOSTRATIGRAPHY OF THE PERMIAN DALONG FORMATION IN THE HUANGYAN AND ADJACENT AREA,JIANSHI,HUBEI
陈立德
摘要(Abstract)：
湖北建始黄岩及邻区二叠系大隆相区产丰富的菊石、双壳类、鱼类以及少量的壳薄体轻的腕足类和遗迹化石等底栖生物。根据建始黄岩和巫山纸厂沟剖面上化石的埋葬特征,以化石的形态功能分析为基础,将建始黄岩、巫山纸厂沟二叠纪大隆组—大冶组底部的生物群分为9个群落,根据群落对沉积盆地中游离氧的示踪,将区内群落划分为浮游微生物群落、游泳漂浮群落、底栖表生群落和底栖内生群落四种类型。在群落生态分析及群落带划分的基础上,分析了建始黄岩及邻区群落的时空分布及古地理演变特点。
关键词(KeyWords)： 生态地层;群落类型;含氧量;大隆组;二叠系;建始;湖北
基金项目(Foundation): 中国地质调查局1/5万《巫山县幅》、《官渡河幅》区域地质调查项目成果
作者(Author): 陈立德
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