The Pre-Sturtian Negative delta C-13 Excursion of the Dajiangbian Formation Deposited on the Western Margin of Cathaysia Block in South China

doi:10.1007/s12583-016-0665-9

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院矿产资源研究重点实验室

	The Pre-Sturtian Negative delta C-13 Excursion of the Dajiangbian Formation Deposited on the Western Margin of Cathaysia Block in South China
	Feng, Lianjun 1; Zhang, Qirui 2
刊名	JOURNAL OF EARTH SCIENCE
	2016-04-01
卷号	27 期号:2 页码:225-232
关键词	Neoproterozoic Cryogenian carbon isotopes Islay anomaly Cathaysia Block
DOI	10.1007/s12583-016-0665-9
文献子类	Article
英文摘要	The Dajiangbian Formation in South China is a siliciclastic-dominated sedimentary succession with low-grade metamorphism deposited on the western margin of the Cathaysia Block, and is capped by a glaciogenic diamictite (the Sizhoushan Formation). The Sizhoushan glaciogenic strata can be attributed to the Jiangkou glacial (Sturtian glacial) episode as they share stratigraphic and lithological similarities with Jiangkou strata in South China. Some carbonate, chert and shale units throughout the upper part of the Dajiangbian Formation were sampled for carbonate carbon isotope (delta C-13(carb)) and organic carbon isotope (delta C-13(org)) analyses. A range of geochemical indices including oxygen isotopes (delta O-18) and Mn/Sr (Fe/Sr) ratios suggest that primary carbon isotope values were preserved in the upper Dajiangbian Formation. The upper Dajiangbian Formation shows delta C-13(carb) of -0.1 parts per thousand, upward decreasing towards to -5.4 parts per thousand. We suggest that the negative delta(13)Cexcursion beneath the Sizhoushan diamictite is correlative with the Pre-Sturtian Islay delta C-13(carb) anomaly and allows correlation with the global Neoproterozoic isotope stratigraphy. We find that carbonate and organic carbon isotope data of the upper Dajiangbian Formation are coupled, consistent with the delta C-13(carb)-delta C-13(org) pattern observed on multiple continents.
WOS关键词	MULTICOMPONENT CARBONATE SYSTEM ; NEOPROTEROZOIC GLACIATIONS ; CRYOGENIAN GLACIATIONS ; CHEMICAL DIAGENESIS ; SNOWBALL-EARTH ; RODINIA ; AGES ; SR ; GEOCHRONOLOGY ; STRATIGRAPHY
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000373423300008
资助机构	Chinese National "973" Project(2013CB835005 ; Chinese National "973" Project(2013CB835005 ; Chinese National "973" Project(2013CB835005 ; Chinese National "973" Project(2013CB835005 ; 40603021 ; 40603021 ; 40603021 ; 40603021 ; 41072145) ; 41072145) ; 41072145) ; 41072145) ; Chinese National "973" Project(2013CB835005 ; Chinese National "973" Project(2013CB835005 ; Chinese National "973" Project(2013CB835005 ; Chinese National "973" Project(2013CB835005 ; 40603021 ; 40603021 ; 40603021 ; 40603021 ; 41072145) ; 41072145) ; 41072145) ; 41072145)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53462]
专题	地质与地球物理研究所_中国科学院矿产资源研究重点实验室
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Feng, Lianjun,Zhang, Qirui. The Pre-Sturtian Negative delta C-13 Excursion of the Dajiangbian Formation Deposited on the Western Margin of Cathaysia Block in South China[J]. JOURNAL OF EARTH SCIENCE,2016,27(2):225-232.
APA	Feng, Lianjun,&Zhang, Qirui.(2016).The Pre-Sturtian Negative delta C-13 Excursion of the Dajiangbian Formation Deposited on the Western Margin of Cathaysia Block in South China.JOURNAL OF EARTH SCIENCE,27(2),225-232.
MLA	Feng, Lianjun,et al."The Pre-Sturtian Negative delta C-13 Excursion of the Dajiangbian Formation Deposited on the Western Margin of Cathaysia Block in South China".JOURNAL OF EARTH SCIENCE 27.2(2016):225-232.