Seawater carbon and strontium isotope variations in the eastern Tarim Basin during the Cambrian: Implications for connection with the open ocean

doi:10.1016/j.jseaes.2023.105702

	Seawater carbon and strontium isotope variations in the eastern Tarim Basin during the Cambrian: Implications for connection with the open ocean
	Zhang, Yinggang 1,2,3; Yang, Tao 1,5; Newton, Robert J.; Pan, Wenqing 4; Chen, Yongquan 4; Yu, Huiyang 1
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2023-09-01
卷号	253 页码:10
关键词	Carbon isotopes Strontium isotopes Cambrian Tarim Basin Paleogeography
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2023.105702
通讯作者	Yang, Tao(yangtao@nju.edu.cn)
英文摘要	Cambrian was a critical period in Earth's history, marked by rapid diversification of early animals and significant changes in oceanic conditions. Marine sediments, particularly carbonates, have been used to study variations in the global carbon cycle, seawater redox, weathering input, etc. In search of new archives of Cambrian paleo-seawater chemistry, we conducted an integrated study of Cambrian C and Sr isotope stratigraphy using the carbonates of the Xingdi section in the Kruqtagh region of the eastern Tarim Basin. Based on reported paleon-tological data, the C isotope record is comparable to the Cambrian global seawater C isotope variation, providing a feasible stratigraphic framework for the Cambrian strata in the eastern Tarim Basin. A sharp delta 13C increase at the top of the Xidasan Formation probably corresponds to the recovery of the Redlichiid-Olenellid Extinction C isotope Excursion. Additionally, a negative C isotope excursion in the lower part of the Mohuosan Formation and a positive C isotope excursion at the bottom of the Tuersaketagh Formation likely correspond to DrumIan Carbon isotope Excursion and Steptoean Positive Carbon Isotope Excursion, respectively. However, the Sr isotope curve in the eastern Tarim Basin decoupled from global seawater Sr isotope variations during Cambrian Series 2-3 until Furongian, indicating that the eastern Tarim Basin was not well connected with the open ocean until Furongian. It also highlights a significant impact of paleogeographical connections of basins with the open ocean on their seawater Sr isotopic signal.
资助项目	Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS)[XDB26000000] ; National Natural Science Foundation of China[41921002]
WOS关键词	TRANSITION EVIDENCE ; CHINA IMPLICATIONS ; NW CHINA ; STRATIGRAPHY ; RECORD ; DELTA-C-13(CARB) ; SUCCESSION ; EVOLUTION ; FOSSILS ; SECTION
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000999156100001
资助机构	Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42168]
专题	中国科学院南京地质古生物研究所
通讯作者	Yang, Tao
作者单位	1.Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing, Peoples R China 3.Univ Leeds, Sch Earth & Environm, Leeds, England 4.PetroChina, Tarim Oil Field Co, Petr Explorat & Dev Inst, Beijing, Peoples R China 5.Nanjing Univ, Xianlin Campus,163 Xianlin Ave, Nanjing 210046, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yinggang,Yang, Tao,Newton, Robert J.,et al. Seawater carbon and strontium isotope variations in the eastern Tarim Basin during the Cambrian: Implications for connection with the open ocean[J]. JOURNAL OF ASIAN EARTH SCIENCES,2023,253:10.
APA	Zhang, Yinggang,Yang, Tao,Newton, Robert J.,Pan, Wenqing,Chen, Yongquan,&Yu, Huiyang.(2023).Seawater carbon and strontium isotope variations in the eastern Tarim Basin during the Cambrian: Implications for connection with the open ocean.JOURNAL OF ASIAN EARTH SCIENCES,253,10.
MLA	Zhang, Yinggang,et al."Seawater carbon and strontium isotope variations in the eastern Tarim Basin during the Cambrian: Implications for connection with the open ocean".JOURNAL OF ASIAN EARTH SCIENCES 253(2023):10.