Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1130/B35228.1 |
Organic carbon isotopes in terrestrial Permian-Triassic boundary sections of North China: Implications for global carbon cycle perturbations | |
Wu, Yuyang1; Tong, Jinnan1; Algeo, Thomas J.1,2,3; Chu, Daoliang1; Cui, Ying4; Song, Huyue1; Shu, Wenchao1; Du, Yong1 | |
2020-05-01 | |
发表期刊 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN |
ISSN | 0016-7606 |
EISSN | 1943-2674 |
出版年 | 2020 |
卷号 | 132期号:5-6页码:1106-1118 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The end-Permian mass extinction (ca. 252 Ma) represents the most severe biotic crisis of the Phanerozoic, and it was accompanied by profound environmental perturbations, especially to the global carbon cycle, as indicated by sharp negative carbon isotope excursions (CIE) in both carbonates (delta C-13(carb)) and organic matter (delta C-13(org)). To date, carbon isotope records are mostly from marine Permian-Triassic transitional sequences with relatively few high-resolution carbon isotope profiles having been generated for terrestrial facies. Terrestrial Permian-Triassic sequences suitable for high-resolution carbon isotope study are rare globally and are difficult to correlate with better-studied marine sequences. However, carbon isotope records from continental facies are essential to a full understanding of global carbon cycle changes during the Permian-Triassic transition. Here, we present bulk delta C-13(org) profiles for three terrestrial sections in North China representing Permian-Triassic transitional beds. These profiles exhibit similar patterns of secular variation defining three stages: (1) a pre-CIE interval, (2) a CIE interval, characterized by a rapid negative shift of 1.7 parts per thousand-2.2 parts per thousand within the middle part of the Sunjiagou Formation, and (3) a post-CIE interval. The similarity of the CIE in all three study sections facilitates correlations among them, and its presence in the Permian-Triassic transitional beds suggests that it is equivalent to the negative CIE at the Permian-Triassic boundary in the Meishan global stratotype section and point (GSSP) and in coeval marine and terrestrial sections globally. The end-Permian CIE was probably triggered by a massive release of C-13-depleted carbon from volcanogenic sources leading to elevated atmospheric pCO(2), although oceanic sources of CO2 cannot be ruled out at present. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000530917400015 |
WOS关键词 | MASS EXTINCTION ; KAROO BASIN ; SOUTH CHINA ; SYDNEY BASIN ; 2 EPISODES ; BUNTSANDSTEIN TRANSITION ; CONTINENTAL DEPOSITS ; MICROBIAL MATS ; SOIL-EROSION ; MARINE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279453 |
专题 | 地球科学 |
作者单位 | 1.China Univ Geosci, Sch Earth Sci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China; 2.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China; 3.Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA; 4.Montclair State Univ, Dept Earth & Environm Studies, Montclair, NJ 07043 USA |
推荐引用方式 GB/T 7714 | Wu, Yuyang,Tong, Jinnan,Algeo, Thomas J.,et al. Organic carbon isotopes in terrestrial Permian-Triassic boundary sections of North China: Implications for global carbon cycle perturbations[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2020,132(5-6):1106-1118. |
APA | Wu, Yuyang.,Tong, Jinnan.,Algeo, Thomas J..,Chu, Daoliang.,Cui, Ying.,...&Du, Yong.(2020).Organic carbon isotopes in terrestrial Permian-Triassic boundary sections of North China: Implications for global carbon cycle perturbations.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,132(5-6),1106-1118. |
MLA | Wu, Yuyang,et al."Organic carbon isotopes in terrestrial Permian-Triassic boundary sections of North China: Implications for global carbon cycle perturbations".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 132.5-6(2020):1106-1118. |
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