袁志伟,金小赤,闫振,郑建彬

• 1:中国地质科学院地质研究所

摘要(Abstract)：

滇西昌宁—孟连带耿马县南部的南皮河桥一带出露了一套由深灰色薄层灰岩、硅质岩、泥岩组成的地层,以往被归入南皮河组。本研究通过对南皮河桥剖面的薄层灰岩样品开展牙形类化石的分析处理,获得了牙形类化石Hindeodus latidentatus、Hindeodus typicalis、Clarkina changxingensis和Clarkina praetaylorae,显示该剖面地层的时代为晚二叠世长兴期。结合岩性和地质时代,这套地层与原南皮河组的主体层段存在明显差异,后者为晚泥盆世至石炭纪最早期的具有浊积岩特征的中厚层砂岩夹薄层粉砂岩、泥岩和硅质岩序列。因此,南皮河桥剖面的这套地层宜在深入研究之后另行命名。

关键词(KeyWords)： 昌宁—孟连带;二叠纪;长兴期;牙形类;南皮河组

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(42172040、42372046)资助

作者(Author): 袁志伟,金小赤,闫振,郑建彬

DOI: 10.19839/j.cnki.dcxzz.2024.0022

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