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Early Late Permian coupled carbon and strontium isotope chemostratigraphy from South China: Extended Emeishan volcanism?
Borhan Bagherpour1; HugoBuchera1; Elke Schneebeli-Hermanna1; Torsten Vennemannb2; Massimo Chiaradiac3; Shu-zhongShen (沈树忠)4
2018
Source PublicationGondwana Research
ISSN1342-937X
Volume58Pages:58-70
Abstract

Carbon isotope compositions of carbonates (delta C-13(carb)) document a new 3.5%. CIE toward lower values concomitant with an Emeishan Large Igneous Province (ELIP)-related drowning event (Mapojiao Event, southern Guizhou) during the early Wuchiapingian. Organic carbon isotope data (delta C-13(org)) have a 2 parts per thousand shift toward higher values across the drowning event, showing decoupling with the delta C-13(carb) evolution. Rock-Eval and palynofacies analyses suggest an elevated flux of terrestrial organic matter (OM) during the drowning episode. Therefore, the decoupling between delta C-13(carb) and delta C-13(org) is best explained by the mixing of different organic carbon pools in the delta C-13(org) curve. Strontium isotope data (Sr-87/Sr-86) also show a transient shift from 0.70715 to 0.70694 associated with this early Wuchiapingian carbon isotope excursion (CIE), which is superimposed on the late Permian prolonged global rising trend. This short-lived Sr-87/Sr-86 excursion is best interpreted as an enhanced hydrothermal flux related to a short pulse of ELIP-related volcanism.

KeywordSouth China Wuchiapingian Carbon Isotope Strontium Isotope Emeishan Large Igneous Province
DOI10.1016/j.gr.2018.01.011
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000440265500005
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/14001
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorBorhan Bagherpour
Affiliation1.Univ Zurich, Paleontol Inst, Karl Schmid Str 4, CH-8006 Zurich, Switzerland;
2.Univ Lausanne, Inst Earth Surface Dynam, CH-1015 Lausanne, Switzerland;
3.Univ Geneva, Dept Earth Sci, CH-1205 Geneva, Switzerland;
4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Borhan Bagherpour,HugoBuchera,Elke Schneebeli-Hermanna,et al. Early Late Permian coupled carbon and strontium isotope chemostratigraphy from South China: Extended Emeishan volcanism?[J]. Gondwana Research,2018,58:58-70.
APA Borhan Bagherpour,HugoBuchera,Elke Schneebeli-Hermanna,Torsten Vennemannb,Massimo Chiaradiac,&Shu-zhongShen .(2018).Early Late Permian coupled carbon and strontium isotope chemostratigraphy from South China: Extended Emeishan volcanism?.Gondwana Research,58,58-70.
MLA Borhan Bagherpour,et al."Early Late Permian coupled carbon and strontium isotope chemostratigraphy from South China: Extended Emeishan volcanism?".Gondwana Research 58(2018):58-70.
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