古地理学报 ›› 2013, Vol. 15 ›› Issue (6): 809-818. doi: 10.7605/gdlxb.2013.06.067

• 生物古地理学及古生态学 • 上一篇    下一篇

晋东南上石炭统—下二叠统太原组灰岩中遗迹组合及其沉积环境

胡斌1,2, 胡磊1, 宋慧波1, 杨连超1   

  1. 1 河南理工大学资源环境学院,河南焦作 454003
    2 河南省生物遗迹与成矿过程重点实验室,河南焦作 454003
  • 收稿日期:2013-01-29 修回日期:2013-03-18 出版日期:2013-12-01 发布日期:2013-12-01
  • 作者简介:胡斌,男,1952年生,河南理工大学资源环境学院教授,博士生导师,主要从事遗迹学与沉积学的教学和研究工作。E-mail: hub@hpu.edu.cn。
  • 基金资助:
    国家自然科学基金项目(编号:41102002,41272117)和国家高校博士点专项基金项目(编号:20094116110002)联合资助

Ichnoassemblages and their sedimentary environments in limestoneof the Upper Carboniferous-Lower Permian Taiyuan Formation,southeastern Shanxi Province

Hu Bin1,2, Hu Lei1, Song Huibo1, Yang Lianchao1   

  1. 1 Institute of Resource and Environment,Henan Polytechnic University,Jiaozuo 454003,Henan
    2 Key Laboratory of Biogenic Traces & Sedimentary Minerals of Henan Province,Jiaozuo 454003,Henan
  • Received:2013-01-29 Revised:2013-03-18 Online:2013-12-01 Published:2013-12-01
  • About author:Hu Bin,born in 1952,is a professor and Ph.D. supervisor of Henan polytechnic University,and is mainly engaged in teaching and researches of ichnology and sedimentology.E-mail: hub@hpu.edu.cn.

摘要: 晋东南陵川地区上石炭统—下二叠统太原组灰岩中遗迹化石发育,已识别出10个遗迹属14个遗迹种,常见遗迹化石包括Zoophycos,Helminthopsis,Planolites,Nereites,Chondrites,Thalassinoides,Rhizocorallium,Ophiomorpha,PalaeophycusTeichichnus等,其中Zoophycos最为发育。依据遗迹化石的组成、分布及产状特征,可建立4个遗迹组合:(1)Zoophycos-Thalassinoides遗迹组合;(2)Planolites-Helminthopsis遗迹组合;(3)Zoophycos-Teichichnus遗迹组合;(4)Nereites-Chondrites遗迹组合。对这些遗迹化石宿主岩石沉积特征的分析表明,太原组灰岩中的遗迹组合分别产生于海湾—潟湖环境(遗迹组合1)、浅海上部(遗迹组合2)、浅海中部(遗迹组合3)和浅海下部(遗迹组合4)。基于遗迹组合特征和沉积特征的综合分析,提出了研究区太原组遗迹化石组合的沉积环境模式,这一成果可为今后该区太原组中煤与煤层气生成的古环境研究提供生物学信息和基础理论资料。

关键词: 遗迹组合, 沉积环境, 太原组, 沁水盆地

Abstract: The abundant ichnofossils were found in the Upper Carboniferous-Lower Permian Taiyuan Formation of Lingchuan area,southeastern Shanxi Province,in which 10 ichnogenus and 14 ichnospecies were distinguished.Common ichnofossils include Zoophycos,Helminthopsis,Planolites,Nereites,Chondrites,Thalassinoides,Rhizocorallium,Ophiomorpha,Palaeophycus and Teichichnus,and the most common ichnofossil is Zoophycos.According to the composition,distribution and occurrence characteristics of ichnofossils,four ichnoassemblages were recognized:(1)Zoophycos-Thalassinoides ichnoassemblage;(2)Planolites-Helminthopsis ichnoassemblage;(3)Zoophycos-Teichichnus ichnoassemblage;(4)Nereites-Chondrites ichnoassemblage.By the analysis of sedimentary characteristics of the host rock of these ichnofossils,it is showed that these ichnoassemblages in the limestone of the Taiyuan Formation mainly distributed respectively in embayment-lagoon(ichnoassemblage 1),the upper shallow sea(ichnoassemblage 2),the middle shallow sea(ichnoassemblage 3)and the lower shallow sea(ichnoassemblage 4).Based on the synthesis analysis of the ichnoassemblages and sedimentary characteristics,this paper puts forward the sedimentary environmental model of ichnoassemblages in the Taiyuan Formation of Lingchuan area.The result will provide the biologic information and basic data for the study of coal and coalbed gas formation palaeoenvironment in the Taiyuan Formation of southeastern Shanxi Province in the future.

Key words: ichnoassemblages, sedimentary environment, Taiyuan Formation, Qinshui Basin

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