Hydrothermal venting activities in the Early Cambrian, South China: Petrological, geochronological and stable isotopic constraints

doi:10.1016/j.chemgeo.2008.10.016

	Hydrothermal venting activities in the Early Cambrian, South China: Petrological, geochronological and stable isotopic constraints
	Chen, Daizhao 1; Wang, Jianguo 1; Qing, Hairuo 2; Yan, Detian 1; Li, Renwei 1
刊名	CHEMICAL GEOLOGY
	2009-01-30
卷号	258 期号:3-4 页码:168-181
关键词	Silica chimney Hydrothermal venting Early Cambrian U-Pb geochronology C-S isotopic systematics South China
ISSN号	0009-2541
DOI	10.1016/j.chemgeo.2008.10.016
文献子类	Article
英文摘要	Multi-episodic (three episodes at least) hydrothermal silica chimneys are identified in the black chert successions (up to similar to 100 m thick locally), overlain by thick black shales (up to a few 100 m thick), in the Ediacaran-Cambrian boundary successions along the southern marginal zone of the Yangtze Platform, South China. Their occurrences are constrained within the lowermost Cambrian by the SHRIMP U-Pb zircon dating and stable isotopic chemostratigaphic data, and are stratigraphically coincident with the negative isotopic excursions of organic carbon (similar to 10 parts per thousand VPDB in magnitude) and sulfide sulfur (between 0 and 10 parts per thousand CDT), i.e., in bases of Nemakit-Daldynian and Tommotian stages in the Lower Cambrian. In this case, a causal link could have existed between which the hydrothermal venting could have released huge amounts of reduced silica-rich hydrothermal fluids with abundant (13)C-depleted greenhouse gases (methane) and volcanic-originated H(2)S into the ocean and/or atmosphere, resulting in an extreme warm climate and oceanic anoxia, oceanic chemical perturbation, and subsequent massive precipitation of silica (chert), and large-magnitude negative isotopic excursions of organic carbon and sulfide sulfur. This scenario provides a unique chance to explore the causes of apparent tectono-depositional. oceanic and geochemical perturbations during this critical interval in South China and elsewhere. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
WOS关键词	EARLY ANIMAL EVOLUTION ; RARE-EARTH-ELEMENTS ; LOWER TAL FORMATION ; YANGTZE PLATFORM ; SPREADING CENTER ; MASS EXTINCTIONS ; LESSER HIMALAYA ; SILICA CHIMNEY ; KROL BELT ; BACK-ARC
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000263400300006
资助机构	National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; National Key Basic Research Project(2005CB422101) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907) ; NSFC-SINOPEC United Foundation(40839907)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/70448]
专题	中国科学院地质与地球物理研究所
通讯作者	Chen, Daizhao
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, Daizhao,Wang, Jianguo,Qing, Hairuo,et al. Hydrothermal venting activities in the Early Cambrian, South China: Petrological, geochronological and stable isotopic constraints[J]. CHEMICAL GEOLOGY,2009,258(3-4):168-181.
APA	Chen, Daizhao,Wang, Jianguo,Qing, Hairuo,Yan, Detian,&Li, Renwei.(2009).Hydrothermal venting activities in the Early Cambrian, South China: Petrological, geochronological and stable isotopic constraints.CHEMICAL GEOLOGY,258(3-4),168-181.
MLA	Chen, Daizhao,et al."Hydrothermal venting activities in the Early Cambrian, South China: Petrological, geochronological and stable isotopic constraints".CHEMICAL GEOLOGY 258.3-4(2009):168-181.