No abrupt change in redox condition caused the end-Permian marine ecosystem collapse in the East Greenland Basin
Nielsen, Jesper K.3; Shen, Yanan (沈延安)1,2; Piasecki, Stefan4; Stemmerik, Lars4
2010-03-01
发表期刊EARTH AND PLANETARY SCIENCE LETTERS
ISSN0012-821X
卷号291期号:1-4页码:32-38
摘要

Multiple observations have revealed that environmental disturbances may have been linked to the end-Permian extinction and delayed biotic recovery. Biogeochemical constraints on the temporal and spatial changes of mass oceanic redox chemistry during the Permian-Triassic interval are essential to evaluate global significance of previous hypotheses and to improve our understanding of extinction and recovery processes. To investigate redox ocean chemistry change associated with the end-Permian extinction and subsequent delayed biotic recovery, we examine framboidal pyrites as well as sulfur isotopic compositions of pyrites from the East Greenland Basin. The size distributions of framboidal pyrites in sediments from a continuous section across the Permian-Triassic boundary reveal that sulfidic conditions in water columns were established about 0.7 m above the extinction event in the East Greenland Basin. Our detailed examination of framboidal pyrites challenges a leading hypothesis that euxinia in the photic zone caused the end-Permian ecosystem collapse. We identify several positive and negative S-isotopic shifts before and after the extinction event and demonstrate that a positive S-isotopic shift is not indicative of an abrupt change of redox chemistry in water columns, in contrast to previouos claims. The integration of isotope and framboidal pyrite data provides a nearly continuous record of ocean chemistry evolution and new insights into the end-Permian extinction and delayed biotic recovery in the East Greenland Basin. (c) 2010 Elsevier B.V. All rights reserved.

关键词Framboidal Pyrite Redox Ocean Chemistry (34)S/(32)s End-permian Extinction Delayed Biotic Recovery
DOI10.1016/j.epsl.2009.12.043
语种英语
关键词[WOS]Photic-zone Euxinia ; Mass Extinction ; Triassic Boundary ; Black-sea ; Carbonate Platform ; Karstryggen Area ; Biotic Recovery ; Oceanic Anoxia ; South China ; Sulfur
资助项目NNSFC[40528004]
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000275539100004
项目资助者NNSFC
出版者ELSEVIER SCIENCE BV
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/337
专题中国科学院南京地质古生物研究所
通讯作者Shen, Yanan (沈延安)
作者单位1.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, Biogeochem & Paleoenvironm Res Grp, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, LPS, Nanjing 210008, Peoples R China
3.SINTEF Petr Res, N-7031 Trondheim, Norway
4.Univ Copenhagen, Dept Geog & Geol, DK-1350 Copenhagen K, Denmark
推荐引用方式
GB/T 7714
Nielsen, Jesper K.,Shen, Yanan ,Piasecki, Stefan,et al. No abrupt change in redox condition caused the end-Permian marine ecosystem collapse in the East Greenland Basin[J]. EARTH AND PLANETARY SCIENCE LETTERS,2010,291(1-4):32-38.
APA Nielsen, Jesper K.,Shen, Yanan ,Piasecki, Stefan,&Stemmerik, Lars.(2010).No abrupt change in redox condition caused the end-Permian marine ecosystem collapse in the East Greenland Basin.EARTH AND PLANETARY SCIENCE LETTERS,291(1-4),32-38.
MLA Nielsen, Jesper K.,et al."No abrupt change in redox condition caused the end-Permian marine ecosystem collapse in the East Greenland Basin".EARTH AND PLANETARY SCIENCE LETTERS 291.1-4(2010):32-38.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
29.pdf(938KB)期刊论文出版稿开放获取CC BY-NC-SA请求全文
个性服务
查看访问统计
谷歌学术
谷歌学术中相似的文章
[Nielsen, Jesper K.]的文章
[Shen, Yanan (沈延安)]的文章
[Piasecki, Stefan]的文章
百度学术
百度学术中相似的文章
[Nielsen, Jesper K.]的文章
[Shen, Yanan (沈延安)]的文章
[Piasecki, Stefan]的文章
必应学术
必应学术中相似的文章
[Nielsen, Jesper K.]的文章
[Shen, Yanan (沈延安)]的文章
[Piasecki, Stefan]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。