• RSS
  • E-mail Alert
  • 收藏主页

古地理学报 ›› 2019, Vol. 21 ›› Issue (6): 999-1012. doi: 10.7605/gdlxb.2019.06.068

所属专题： 化石资料在地质学研究中的应用；

• 生物古地理学及古生态学 • 上一篇    下一篇

华北盆地西部太原组遗迹化石组合对古水深变化的响应*

宋慧波1,2, 李娟1, 胡斌1   

  1. 1 河南理工大学资源环境学院,河南焦作 454003;
    2 中原经济区煤层(页岩)气河南省协同创新中心,河南焦作 454003
  • 收稿日期:2019-01-21 修回日期:2019-03-20 出版日期:2019-12-01 发布日期:2019-12-05
  • 通讯作者: 胡斌,男,1952年生,教授,博士生导师,主要从事古生物地层学、遗迹学和沉积学的教学与研究工作。E-mail: hub@hpu.edu.cn。
  • 作者简介:宋慧波,女,1979年生,副教授,博士,主要从事古生物地层学、遗迹学和沉积学的教学与研究工作。E-mail: songhuibo2005@hpu.edu.cn。
  • 基金资助:
    * 国家自然科学基金项目(编号: 41772104)、河南省基础与前沿项目(编号: 162300410256)、河南理工大学博士基金项目(编号: B2013-075)联合资助

Responses of ichnoassemblages to paleo-water-depth of the Taiyuan Formation in western North China Basin

Song Hui-bo1,2, Li Juan1, Hu Bin1   

  1. 1 School of Resources and Environment,Henan Polytechnic University, Henan Jiaozuo 454003, China;
    2 Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region of Henan Province,Henan Jiaozuo 454003, China
  • Received:2019-01-21 Revised:2019-03-20 Online:2019-12-01 Published:2019-12-05
  • Contact: Hu Bin,born in 1952,is a professor and Ph.D. supervisor of Henan Polytechnic University. He is mainly engaged in teaching and researches of paleontology and stratigraphy,ichnology and sedimentology. E-mail: hub@hpu.edu.cn.
  • About author:Song Hui-Bo,born in 1979,is an associate professor with Ph.D. degree obtain from Henan Polytechnic University. She is mainly engaged in teaching and researches of paleontology and stratigraphy,ichnology and sedimentology. E-mail: songhuibo2005@hpu.edu.cn.
  • Supported by:
    Co-funded by the National Natural Science Foundation of China(No.41772104),the Basic and Frontiers Research Program of Henan Province(No.162300410256),the Doctoral Foundation of Henan Polytechnic University(No. B2013-075)

RichHTML

PDF

摘要： 通过对豫西—晋中南地区上石炭统—下二叠统太原组碳酸盐岩中遗迹化石的组成、产状及分布特征的研究,结合部分生物潜穴中Sr含量、Sr/Ba值、1000×(Sr/Ca)值和δ13C值,得到不同地区太原组沉积期古水深的变化曲线,建立了3种不同水深的遗迹组合: (1)Nereites-Chondrites遗迹组合,产生于氧化还原界面附近水体相对较深的浅海下部环境;(2)Zoophycos-Teichichnus遗迹组合,形成于浪基面至氧化还原界面之间的浅海中部沉积环境;(3)Zoophycos-Thalassinoides遗迹组合,出现在平均海平面至浪基面之间的浅海上部或较为闭塞的海湾潟湖沉积环境。依据这3种遗迹组合在各剖面上的变化特征和古水深,认为在豫西—晋中南地区太原组沉积期发生过2次较大规模的海侵。这一成果为精细研究华北西部地区太原期沉积环境演变规律及对比地层提供了生物遗迹学方面的依据。

关键词: 华北盆地, 太原组, 遗迹组合, 古水深, 微量元素, 碳同位素

Abstract: In this paper,we studied composition,appearance and distribution of ichnofossils in the carbonates of the Upper Carboniferous-Lower Permian Taiyuan Formation in the western North China Basin,and analyzed the relationships between Sr contents, Sr/Ba values,1000×(Sr/Ca), and δ13C in some ichnofossils burrow and paleo-water-depth. Three types of ichnoassemblages with different water-depths were established: (1)Nereites-Chondrites ichnoassemblage occurred in the lower zone of the shallow sea below the redox interface;(2)Zoophycos-Teichichnus ichnoassemblage formed in the middle zone of the shallow sea between the wave base and redox interface;(3)Zoophycos-Thalassinoides ichnoassemblage occurred in the upper zone of the shallow sea(between the sea level and wave base)or lagoonal environments. Based on various characteristics of these ichnoassemblages in different sections,and paleo-water-depth changes in different area,two major transgressions can be identified in the Taiyuan Formation in the study area. This research provides ichnology basis for detailed studies on evolution of depositional environments and stratigraphic correlation of the Taiyuan Formation in the western North China.

Key words: North China Basin, Taiyuan Formation, ichnoassemblages, paleo-water-depth, trace element, carbon isotopic

中图分类号: