中国科学院南海海洋研究所机构知识库
Advanced  
SCSIO OpenIR  > 中科院海洋生物资源可持续利用重点实验室  > 期刊论文
学科主题: Geography, Physical; Geosciences, Multidisciplinary; Paleontology
题名: Pyrite framboids in the Pennian-Triassic boundary section at Meishan, China: Evidence for dysoxic deposition
作者: Shen, WJ ; Lin, YT ; Xu, L ; Li, JF ; Wu, YS ; Sung, YG
通讯作者: Linyt@mail.iggcas.ac.cn
关键词: Pennian-Triassic boundary ; pyrite framboid ; dysoxia ; mass extinction
刊名: PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
发表日期: 2007
卷: 253, 期:40606, 页:323-331
收录类别: sci
部门归属: Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphere Evolut, Beijing 100029, Peoples R China; Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Isotope Geochronol & Geochem, Guangzhou 510640, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China; Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Marginal Sea Geol, Guangzhou 510640, Peoples R China; Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510640, Peoples R China; Chinese Acad Sci, Inst Geol & Geophys, Div Water Resource & Crust Fluid, Beijing 100029, Peoples R China; Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China
项目归属: LMB
摘要: Pyrite framboid evidence from the Permian-Triassic global stratotype at Meishan, China, indicates the late Permian mass extinction is closely associated with a dramatic decline of benthic oxygen levels. Sizes and abundances of the framboids were determined from acid residues and in situ on polished sections of the samples. The framboids are abundant in the thin pyrite lamina on the top of Bed 24e (the upper layer of Bed 24), and Beds 25, 26 and 29, rare in Bed 24e and Bed 28, but absent in Bed 27. They have narrow size distributions with average diameters from 4.6 mu m to 8.7 mu m which are similar to those formed under anoxic/dysoxic conditions. The abundances and mean diameters of the pyrite framboids indicate redox conditions of deposition changing from upper dysoxia (Bed 24e) and lower dysoxia (pyrite lamina, Beds 25 and 26) to oxygenation (Bed 27), and again to upper dysoxia (Bed 28) and lower dysoxia (Bed 29). Our discovery confirms a worldwide dysoxic marine event during the Permian-Triassic transition, suggestive of a direct relationship with the Permian-Triassic marine mass extinction. (c) 2007 Elsevier B.V. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000250255400005
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4912
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

Files in This Item:

There are no files associated with this item.


Recommended Citation:
Shen, WJ; Lin, YT; Xu, L; Li, JF; Wu, YS; Sung, YG.Pyrite framboids in the Pennian-Triassic boundary section at Meishan, China: Evidence for dysoxic deposition,PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2007,253(40606):323-331
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Shen, WJ]'s Articles
[Lin, YT]'s Articles
[Xu, L]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Shen, WJ]‘s Articles
[Lin, YT]‘s Articles
[Xu, L]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院南海海洋研究所 - Feedback
Powered by CSpace