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Iron speciation in cherts from the Laobao Formation, South China: Implications for anoxic and ferruginous deep-water conditions

文献类型：期刊论文

作者Chang HuaJin1,2,3; Chu XueLei3; Feng LianJun3; Huang Jing3
刊名CHINESE SCIENCE BULLETIN
出版日期2010-09-01
卷号55期号:27-28页码:3189-3196
关键词cherts iron species paleoenvironment Ediacaran South China
ISSN号1001-6538
DOI10.1007/s11434-010-4006-6
文献子类Article
英文摘要Cherts in the Laobao Formation in the Silikou section, South China were deposited in terminal Ediacaran deep-water. The speciations of iron in cherts, such as pyrite Fe (Fe(P)), HCl-extractable Fe (Fe(H)), and total Fe (Fe(T)), and their interrelationships, are proxies for distinguishing oxic, anoxic but ferruginous, and sulfidic conditions, which is an effective method for studying the terminal Ediacaran ocean environment. For chert samples from the Laobao Formation, pyrite concentrations are generally low (< 0.56%), degree of pyritization (DOP) ranges from < 0.01 to 0.78 and most are < 0.45; (Fe(P)+Fe(H))/Fe(T) ratios are between 0.27 and 0.84 and most exceed 0.38, and most of FeT/Al ratios range from 0.55 to 5.87 (averaging 1.1). Relatively high content of highly reactive Fe and low content of pyrite indicate a scarcity of H(2)S and Fe-enriched deep-water. These features suggested that the deposition setting of Laobao cherts was anoxic and ferruginous. Terminal Ediacaran deep-water in the South China Basin was most likely anoxic and ferruginous, which played a key role in the emergence and evolution of early multicellular life.
WOS关键词PYRITE FORMATION ; DOUSHANTUO FORMATION ; PROTEROZOIC OCEAN ; SEDIMENTARY-ROCKS ; EDIACARAN OCEAN ; EVOLUTION ; SULFUR ; PYRITIZATION ; OXYGENATION ; DEPOSITION
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000283082700020
出版者SCIENCE PRESS
资助机构National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; 40873007 ; 40873007 ; 40873007 ; 40873007 ; 40603021) ; 40603021) ; 40603021) ; 40603021) ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; 40873007 ; 40873007 ; 40873007 ; 40873007 ; 40603021) ; 40603021) ; 40603021) ; 40603021) ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; 40873007 ; 40873007 ; 40873007 ; 40873007 ; 40603021) ; 40603021) ; 40603021) ; 40603021) ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; National Natural Science Foundation of China(40532012 ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; 40873007 ; 40873007 ; 40873007 ; 40873007 ; 40603021) ; 40603021) ; 40603021) ; 40603021)
源URL[http://ir.iggcas.ac.cn/handle/132A11/72090]  
专题中国科学院地质与地球物理研究所
通讯作者Chang HuaJin
作者单位1.Qinghai Normal Univ, Sch Life & Geog Sci, Xining 810008, Peoples R China
2.Minist Educ, Key Lab Tibetan Plateau Environm & Resources, Xining 810008, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Chang HuaJin,Chu XueLei,Feng LianJun,et al. Iron speciation in cherts from the Laobao Formation, South China: Implications for anoxic and ferruginous deep-water conditions[J]. CHINESE SCIENCE BULLETIN,2010,55(27-28):3189-3196.
APA Chang HuaJin,Chu XueLei,Feng LianJun,&Huang Jing.(2010).Iron speciation in cherts from the Laobao Formation, South China: Implications for anoxic and ferruginous deep-water conditions.CHINESE SCIENCE BULLETIN,55(27-28),3189-3196.
MLA Chang HuaJin,et al."Iron speciation in cherts from the Laobao Formation, South China: Implications for anoxic and ferruginous deep-water conditions".CHINESE SCIENCE BULLETIN 55.27-28(2010):3189-3196.

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来源：地质与地球物理研究所

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