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The geochemistry of the late Cambrian carbonate in North China: the Steptoean Positive Carbon Isotope Excursion (SPICE) record suppressed in a coastal condition?
Huang, Jing1,2; Chen, Yali3; Chu, Xuelei4,5; Sun, Tao6
2019-10-01
Source PublicationGEOLOGICAL MAGAZINE
ISSN0016-7568
Volume156Issue:10Pages:1805-1819
AbstractThe Steptoean Positive Carbon Isotope Excursion (SPICE) is globally distributed in late Cambrian sedimentary records but controversially heterogeneous in its magnitudes. Here we use multiple geochemical proxies to investigate the late Cambrian carbonates from the Tangwangzhai section in North China, which were deposited in a shallow coastal environment with three depositional sequences (S1-S3). Each sequence comprises a transgressive systems tract (TST) and a highstand systems tract (HST). The REE + Y and trace element records are consistent with the depositional condition and indicate that terrigenous influence was more significant in the TST than HST. delta C-13(carb) and delta S-34(CAS) are low in the TST relative to HST, consistent with the scenario that terrigenous inputs were profoundly aggressive to seawater by introducing C-13-depleted and S-34-depleted materials. Within the TST of S2, the SPICE excursion shows a scaled-down delta C-13(carb) positive shift (similar to 1.7 parts per thousand) relative to its general records (similar to 4-6 parts per thousand); the corresponding delta S-34(CAS) show no positive excursion. This 'atypical' SPICE record is attributed to enhanced C-13-depleted and S-34-depleted terrigenous influence during the TST, which would reduce the amplitude of delta C-13(carb) excursion, and even obscure delta S-34(CAS) excursion. Meanwhile the subaerial unconformity at the base of TST would also cause a partially missing and a 'snapshot' preservation. Our study confirms significant local influence to the SPICE records, and further supports the heterogeneity and low sulphate concentrations of the late Cambrian seawater, because of which the SPICE records may be vulnerable to specific depositional conditions (e.g. sea-level, terrigenous input).
Keywordcarbon isotope sulphur isotope terrigenous input trace element
DOI10.1017/S0016756819000025
Funding OrganizationNatural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; 111 Project ; 111 Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; 111 Project ; 111 Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; 111 Project ; 111 Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; 111 Project ; 111 Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
WOS KeywordRARE-EARTH-ELEMENTS ; STANDARD STRATOTYPE-SECTION ; SHANDONG PROVINCE ; CHAOMIDIAN FORMATION ; ORGANIC-MATTER ; POINT GSSP ; SULFUR ; SULFATE ; SEAWATER ; EVOLUTION
Language英语
Funding ProjectNatural Science Foundation of China[41673002] ; Natural Science Foundation of China[41890842] ; Natural Science Foundation of China[41520104007] ; Natural Science Foundation of China[41721002] ; Natural Science Foundation of China[41330102] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-DQC031] ; 111 Project ; Fundamental Research Funds for the Central Universities
Funding OrganizationNatural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; 111 Project ; 111 Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; 111 Project ; 111 Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; 111 Project ; 111 Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; 111 Project ; 111 Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000488964700012
PublisherCAMBRIDGE UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/93902
Collection矿产资源研究院重点实验室
Corresponding AuthorHuang, Jing
Affiliation1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China
2.CAS Ctr Excellence Comparat Planetol, Hefei, Anhui, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Environm Factors Control Agroprod Qual Sa, Agroenvironm Protect Inst, Tianjin 300191, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Rice Univ, Dept Earth Environm & Planetary Sci, Houston, TX 77005 USA
Recommended Citation
GB/T 7714
Huang, Jing,Chen, Yali,Chu, Xuelei,et al. The geochemistry of the late Cambrian carbonate in North China: the Steptoean Positive Carbon Isotope Excursion (SPICE) record suppressed in a coastal condition?[J]. GEOLOGICAL MAGAZINE,2019,156(10):1805-1819.
APA Huang, Jing,Chen, Yali,Chu, Xuelei,&Sun, Tao.(2019).The geochemistry of the late Cambrian carbonate in North China: the Steptoean Positive Carbon Isotope Excursion (SPICE) record suppressed in a coastal condition?.GEOLOGICAL MAGAZINE,156(10),1805-1819.
MLA Huang, Jing,et al."The geochemistry of the late Cambrian carbonate in North China: the Steptoean Positive Carbon Isotope Excursion (SPICE) record suppressed in a coastal condition?".GEOLOGICAL MAGAZINE 156.10(2019):1805-1819.
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