The Cambrian Drumian carbon isotope excursion (DICE) in the Keping area of the northwestern Tarim Basin, NW China

doi:10.1016/j.palaeo.2021.110385

	The Cambrian Drumian carbon isotope excursion (DICE) in the Keping area of the northwestern Tarim Basin, NW China
	Yang, Xiaoqun 1; Li, Zhong 1,2; Gao, Biao 3; Zhou, Yuanquan 1
刊名	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
	2021-06-01
卷号	571 页码:11
关键词	Miaolingian Transgression Detrital zircon Microbialites
ISSN号	0031-0182
DOI	10.1016/j.palaeo.2021.110385
通讯作者	Li, Zhong(lizhong@mail.iggcas.ac.cn)
英文摘要	The middle Cambrian is an important period for the decline of metazoans and the resurgence of microbialites. Based on the analysis of carbon and oxygen isotopes, detrital zircon U-Pb dating, and geochemical analysis, the middle Cambrian DICE (Drumian carbon isotope excursion) event was identified and its relationship with microbialites and sea-level changes was discussed in the Tarim Basin. The DICE event has a negative shift in delta C-13 from 0 parts per thousand to -3.2 parts per thousand. About 15 m below the DICE, the youngest age of the detrital zircon was 504.5 Ma, which was consistent with the age of the DICE event. Stromatolites are abundant and agnostoid trilobite Ptychagnostus atavus is absent in the Keping area. The DICE event corresponds to the occurrence of hemispherical stromatolites in the shallow-water platform. Lithologic association and terrigenous clastic index show that the marine transgression and condensation layer occurred during the DICE event, which may be synchronized with organic matter oxidation when stratified water masses overturned during transgression.
资助项目	National Natural Science Foundation of China[41802134] ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences[XDA14010201-02]
WOS关键词	STANDARD STRATOTYPE-SECTION ; POINT GSSP ; GREAT-BASIN ; SEA-LEVEL ; STRATIGRAPHY ; EVOLUTION ; BOUNDARY ; TRANSITION ; TRILOBITES ; DELTA-C-13
WOS研究方向	Physical Geography ; Geology ; Paleontology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000643685200017
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/38123]
专题	中国科学院南京地质古生物研究所
通讯作者	Li, Zhong
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 10029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 10029, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xiaoqun,Li, Zhong,Gao, Biao,et al. The Cambrian Drumian carbon isotope excursion (DICE) in the Keping area of the northwestern Tarim Basin, NW China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2021,571:11.
APA	Yang, Xiaoqun,Li, Zhong,Gao, Biao,&Zhou, Yuanquan.(2021).The Cambrian Drumian carbon isotope excursion (DICE) in the Keping area of the northwestern Tarim Basin, NW China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,571,11.
MLA	Yang, Xiaoqun,et al."The Cambrian Drumian carbon isotope excursion (DICE) in the Keping area of the northwestern Tarim Basin, NW China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 571(2021):11.