Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1130/B31996.1 |
Are Late Permian carbon isotope excursions of local or of global significance? | |
Bagherpour, Borhan1,2; Bucher, Hugo2; Vennemann, Torsten3; Schneebeli-Hermann, Elke2; Yuan, Dong-xun4; Leu, Marc2; Zhang, Chao4; Shen, Shu-Zhong5 | |
2020-03-01 | |
发表期刊 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN
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ISSN | 0016-7606 |
EISSN | 1943-2674 |
出版年 | 2020 |
卷号 | 132期号:3-4页码:521-544 |
文章类型 | Article |
语种 | 英语 |
国家 | Iran; Switzerland; Peoples R China |
英文摘要 | We present a new, biostratigraphically calibrated organic and inorganic C-isotope record spanning the basal Late Permian to earliest Triassic from southern Guizhou (Nanpanjiang basin, South China). After fluctuations of a likely diagenetic overprint are removed, three negative carbon isotope excursions (CIEs) persist. These include a short-lived CIE during the early Wuchiapingian, a protracted CIE ending shortly after the Wuchiapingian-Changhsingian Boundary, and a third CIE straddling the Permian-Triassic boundary. Comparison of our new C-isotope record with others from the same basin suggests that influences of local bathymetry and of the amount of buried terrestrial organic matter are of importance. Comparison with other coeval time series outside of South China also highlights that only the negative CIE at the Permian-Triassic boundary is a global signal. These differences can be explained by the different volumes of erupted basalts between the Late Permian Emeishan and the younger Siberian large igneous provinces and their distinct eruptive modalities. Emeishan volcanism was largely submarine, implying that sea water was an efficient buffer against atmospheric propagation of volatiles. The equatorial position of Emeishan was also an additional obstacle for volatiles to reach the stratosphere and benefit from an efficient global distribution. Consequently, the local significance of these CIEs calls into question global correlations based on C-isotope chemostratigraphy during the Late Permian. The timing of the Late Permian Chinese CIEs is also not reflected in changes in species diversity or ecology, unlike the sudden and global Permian-Triassic boundary crisis and subsequent Early Triassic upheavals. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000518916800004 |
WOS关键词 | ROCK-EVAL PYROLYSIS ; END-GUADALUPIAN EXTINCTION ; DOUBLE MASS EXTINCTION ; LARGE IGNEOUS PROVINCE ; TRIASSIC BOUNDARY ; SOUTH CHINA ; SIBERIAN TRAPS ; SW CHINA ; CONODONT BIOSTRATIGRAPHY ; ENVIRONMENTAL-CHANGE |
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/279427 |
专题 | 地球科学 |
作者单位 | 1.Shiraz Univ, Fac Sci, Dept Earth Sci, Shiraz, Iran; 2.Univ Zurich, Paleontol Inst, Karl Schmid Str 4, CH-8006 Zurich, Switzerland; 3.Univ Lausanne, Inst Earth Surface Dynam, CH-1015 Lausanne, Switzerland; 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China; 5.Nanjing Univ, Sch Earth Sci & Engn, 163 Xianlin Ave, Nanjing 210023, Peoples R China |
推荐引用方式 GB/T 7714 | Bagherpour, Borhan,Bucher, Hugo,Vennemann, Torsten,et al. Are Late Permian carbon isotope excursions of local or of global significance?[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2020,132(3-4):521-544. |
APA | Bagherpour, Borhan.,Bucher, Hugo.,Vennemann, Torsten.,Schneebeli-Hermann, Elke.,Yuan, Dong-xun.,...&Shen, Shu-Zhong.(2020).Are Late Permian carbon isotope excursions of local or of global significance?.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,132(3-4),521-544. |
MLA | Bagherpour, Borhan,et al."Are Late Permian carbon isotope excursions of local or of global significance?".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 132.3-4(2020):521-544. |
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