KMS Nanjing Institute of Geology and Palaeonotology,CAS
Seawater carbon and strontium isotope variations in the eastern Tarim Basin during the Cambrian: Implications for connection with the open ocean | |
Zhang, Yinggang1,2,3; Yang, Tao1,5; Newton, Robert J.; Pan, Wenqing4; Chen, Yongquan4; Yu, Huiyang1 | |
2023-09-01 | |
发表期刊 | JOURNAL OF ASIAN EARTH SCIENCES |
ISSN | 1367-9120 |
卷号 | 253页码:10 |
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. |
关键词 | Carbon isotopes Strontium isotopes Cambrian Tarim Basin Paleogeography |
DOI | 10.1016/j.jseaes.2023.105702 |
收录类别 | SCI |
语种 | 英语 |
关键词[WOS] | TRANSITION EVIDENCE ; CHINA IMPLICATIONS ; NW CHINA ; STRATIGRAPHY ; RECORD ; DELTA-C-13(CARB) ; SUCCESSION ; EVOLUTION ; FOSSILS ; SECTION |
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研究方向 | Geology |
WOS类目 | Geosciences, Multidisciplinary |
WOS记录号 | WOS:000999156100001 |
项目资助者 | Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/42169 |
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. |
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