气候变化领域集成服务门户(CCPortal): A high-resolution Middle to Late Permian paleotemperature curve reconstructed using oxygen isotopes of well-preserved brachiopod shells

CCPortal

DOI	10.1016/j.epsl.2020.116245
	A high-resolution Middle to Late Permian paleotemperature curve reconstructed using oxygen isotopes of well-preserved brachiopod shells
	Wang, Wen-qian; Garbelli, Claudio; Zhang, Fei-fei; Zheng, Quan-feng; Zhang, Yi-chun; Yuan, Dong-xun; Shi, Yu-kun; Chen, Bo; Shen, Shu-zhong
通讯作者	Shen, SZ (通讯作者)
发表日期	2020
ISSN	0012-821X
EISSN	1385-013X
卷号	540
英文摘要	Climatic warming has been widely cited as a driver for many mass extinction events in Earth history, including the middle-late Permian Guadalupian-Lopingian boundary (GLB) mass extinction and end-Permian mass extinction (EPME) investigated in this study. However, the role of warming in driving the EPME event is under debate because current paleotemperature studies indicate the rapid increase in sea-surface temperature postdate the onset of the EPME event, and a reliable paleotemperature record across the GLB event is lacking. Here, we present a high-resolution and successive delta O-18 record using low-Mg calcite shells of brachiopods (bLMCs) from a single stratigraphic section in central China to reconstruct paleotemperature changes from the middle to the latest Permian. After a rigorous screening for diagenesis, our data show a similar to 1.0 parts per thousand decrease in delta O-18(calcite) (and thus climatic warming) during the middle Capitanian, followed by a gradual similar to 2.0 parts per thousand increase (climatic cooling) during the late Wuchiapingian. From the latest Wuchiapingian to the early Changhsingian, delta O-18 decreased gradually and reached the lowest values of -4.0 parts per thousand (and thus rapid climatic warming) immediately before the Permian-Triassic boundary. The two warming events are coeval with the onset of the Emeishan Large Igneous Province and the Siberian Traps Large Igneous Province, respectively, suggesting the two volcanic events are the plausible drivers of these climatic warming events. A close comparison of paleontological and geochemical records indicates that the warming events occurred predate the GLB and EPME events, this is in contrast with conodont delta O-18(apatite) data which document the rapid climatic warming lagged the onset of the extinction event. The comparison between delta O-18 of bLMCs and delta O-18 of conodonts from the same section shows that the long-term trends are similar, but, at higher temporal resolution, discrepancies are present, entailing further investigation in the near future. Our study confirms that delta O-18 of the brachiopod shells underwent important changes during the end of Paleozoic, highlighting that sea surface temperature is a key factor to understand the biosphere history, since it changes simultaneously with the biological crises, and that bLMCs are invaluable archive for tracking physical and chemical conditions of past oceans. (C)2020 Elsevier B.V. All rights reserved.
关键词	CARBON-ISOTOPE DIAGENETIC ALTERATION MASS EXTINCTION SOUTH CHINA SECTION END SR-87/SR-86 SEAWATER CHEMOSTRATIGRAPHY DELTA-C-13
英文关键词	mass extinctions; climatic warming; paleotemperature; brachiopods; conodonts; oxygen isotopes
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000530092900001
来源期刊	EARTH AND PLANETARY SCIENCE LETTERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259723
推荐引用方式 GB/T 7714	Wang, Wen-qian,Garbelli, Claudio,Zhang, Fei-fei,et al. A high-resolution Middle to Late Permian paleotemperature curve reconstructed using oxygen isotopes of well-preserved brachiopod shells[J]. 中国科学院青藏高原研究所,2020,540.
APA	Wang, Wen-qian.,Garbelli, Claudio.,Zhang, Fei-fei.,Zheng, Quan-feng.,Zhang, Yi-chun.,...&Shen, Shu-zhong.(2020).A high-resolution Middle to Late Permian paleotemperature curve reconstructed using oxygen isotopes of well-preserved brachiopod shells.EARTH AND PLANETARY SCIENCE LETTERS,540.
MLA	Wang, Wen-qian,et al."A high-resolution Middle to Late Permian paleotemperature curve reconstructed using oxygen isotopes of well-preserved brachiopod shells".EARTH AND PLANETARY SCIENCE LETTERS 540(2020).