赵小明,段其发,牛志军,姚华舟,汤朝阳,曾波夫

• 1:宜昌地质矿产研究所
• 2:宜昌地质矿产研究所
• 3:宜昌地质矿产研究所
• 4:宜昌地质矿产研究所

摘要(Abstract)：

青海南部曲麻莱—治多地区广泛出露厚度巨大、岩性单一、实体化石稀少的三叠系巴颜喀拉山群,其地层划分与对比因缺乏明显标志而相对困难。最近,在该地区的研究中采获大量遗迹化石,建立了8个遗迹化石组合。古遗迹学的研究表明,遗迹化石丰度、分异度及遗迹化石组合在研究区内的地层序列中存在明显差异。提出将古遗迹学特征作为一定区域内岩石地层划分对比的标志之一,为解决巴颜喀拉山群中富含遗迹化石的上部板岩组和顶部砂岩夹板岩组的划分对比提出新思路。

关键词(KeyWords)： 遗迹化石;地层划分对比;巴颜喀拉山群;三叠系;青海

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(No40372004);; 1/25万曲麻莱县区域地质调查项目(No200313000006)

作者(Author): 赵小明,段其发,牛志军,姚华舟,汤朝阳,曾波夫

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