The Late Devonian Frasnian-Famennian (F/F) biotic crisis: Insights from delta C-13(carb), delta C-13(org) and Sr-87/Sr-86 isotopic systematics

doi:10.1016/j.epsl.2005.03.018

	The Late Devonian Frasnian-Famennian (F/F) biotic crisis: Insights from delta C-13(carb), delta C-13(org) and Sr-87/Sr-86 isotopic systematics
	Chen, DZ ; Qing, HR ; Li, RW
刊名	EARTH AND PLANETARY SCIENCE LETTERS
	2005-06-30
卷号	235 期号:1-2 页码:151-166
关键词	C-13/c-12 Sr-87/sr-86 Late Devonian Hydrothermal Activity Climate Change Vascular Plant Expansion Microbial Bloom Mass Extinction South China
ISSN号	0012-821X
DOI	10.1016/j.epsl.2005.03.018
文献子类	Article
英文摘要	A severe biotic crisis occurred during the Late Devonian Frasnian-Famennian (F/F) transition (+/- 367 Myr). Here we present delta(13)C(carb), delta(13)C(org) and Sr-87/Sr-86 isotopic systematics, from identical samples of two sections across F[F boundary in South China, which directly demonstrate large and frequent climatic fluctuations (similar to 200 kyr) from warming to cooling during the F/F transition. These climate fluctuations are interpreted to have been induced initially by increased volcanic outgassing, and subsequent enhanced chemical weathering linked to the rapid expansion of vascular plants on land, which would have increased riverine delivery to oceans and primary bioproductivity, and subsequent burial of organic matter, thereby resulting in climate cooling. Such large and frequent climatic fluctuations, together with volcanic-induced increases in nutrient (e.g., biolimiting Fe), toxin (sulfide) and anoxic, water supply, and subsequent enhanced riverine fluxes and microbial bloom, were likely responsible for the stepwise faunal demise of F/ F biotic crisis. (c) 2005 Elsevier B.V. All rights reserved.
WOS关键词	ATMOSPHERIC CO2 ; MASS EXTINCTION ; SOUTH CHINA ; CARBONATE DIAGENESIS ; MARINE-PHYTOPLANKTON ; PEDOGENIC CARBONATE ; ORGANIC-CARBON ; TRACE-ELEMENT ; ANOXIC EVENTS ; GROWTH-RATE
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000230582200011
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/65170]
专题	中国科学院地质与地球物理研究所
通讯作者	Chen, DZ
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Regina, Dept Geol, Regina, SK S4S 0A2, Canada
推荐引用方式 GB/T 7714	Chen, DZ,Qing, HR,Li, RW. The Late Devonian Frasnian-Famennian (F/F) biotic crisis: Insights from delta C-13(carb), delta C-13(org) and Sr-87/Sr-86 isotopic systematics[J]. EARTH AND PLANETARY SCIENCE LETTERS,2005,235(1-2):151-166.
APA	Chen, DZ,Qing, HR,&Li, RW.(2005).The Late Devonian Frasnian-Famennian (F/F) biotic crisis: Insights from delta C-13(carb), delta C-13(org) and Sr-87/Sr-86 isotopic systematics.EARTH AND PLANETARY SCIENCE LETTERS,235(1-2),151-166.
MLA	Chen, DZ,et al."The Late Devonian Frasnian-Famennian (F/F) biotic crisis: Insights from delta C-13(carb), delta C-13(org) and Sr-87/Sr-86 isotopic systematics".EARTH AND PLANETARY SCIENCE LETTERS 235.1-2(2005):151-166.