High-resolution carbon isotopic records from the Ordovician of South China: Links to climatic cooling and the Great Ordovician Biodiversification Event (GOBE)

doi:10.1016/j.palaeo.2010.02.020

	High-resolution carbon isotopic records from the Ordovician of South China: Links to climatic cooling and the Great Ordovician Biodiversification Event (GOBE)
	Zhang, Tonggang 1,2; Shen, Yanan 1,2; Algeo, Thomas J.3
	2010-04-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	289 期号:1-4 页码:102-112
摘要	The Great Ordovician Biodiversification Event (GOBE) represented the largest increase in diversity in the marine biosphere during the Phanerozoic Eon, yet its causes and consequences remain poorly understood. Patterns of isotopic variation in high-resolution delta C-13(carb) and delta C-13(org) records from a well-exposed section at Honghuayuan in South China may provide important insights regarding the GOBE. The Honghuayuan isotopic profiles, which can be correlated with C-isotopic records from contemporaneous sections globally, reveal large perturbations to the global carbon cycle during the Ordovician. A + 8 parts per thousand increase in delta C-13(org) values in the Floian implies a large, albeit transient increase in the burial rate of organic matter during the mid-Early Ordovician that may have contributed to climatic cooling and played an important role in triggering the GOBE. A + 4 parts per thousand increase in delta C-13(carb) and high-frequency variation in delta C-13(org) in the Darriwilian to Sandbian suggest a second episode of elevated organic carbon burial rates accompanied by substantial instability in the global carbon cycle during the late Middle and early Late Ordovician. This pattern may mark the onset of climate changes culminating in the end-Ordovician Hirnantian glaciation and mass extinction event that terminated the GOBE. (C) 2010 Elsevier B.V. All rights reserved.
关键词	delta C-13(carb) delta C-13(org) Atmospheric CO2 Climate cooling Biodiversification
DOI	10.1016/j.palaeo.2010.02.020
语种	英语
关键词[WOS]	EARLY-MID ORDOVICIAN ; MASS EXTINCTION ; ORGANIC-MATTER ; GLOBAL CORRELATION ; YANGTZE PLATFORM ; BRACHIOPOD DIVERSIFICATION ; ATMOSPHERIC PCO(2) ; SILURIAN BOUNDARY ; GLACIATION ; STRATIGRAPHY
资助项目	National Natural Science Foundation of China[40528004] ; National Natural Science Foundation of China[40503002] ; National Science Foundation
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000276930500009
项目资助者	National Natural Science Foundation of China ; National Science Foundation
出版者	ELSEVIER SCIENCE BV
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/383
专题	中国科学院南京地质古生物研究所
通讯作者	Shen, Yanan
作者单位	1.Chinese Acad Sci, Biogeochem & Paleoenvironm Res Grp, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, LPS, Nanjing 210008, Peoples R China 3.Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA
推荐引用方式 GB/T 7714	Zhang, Tonggang,Shen, Yanan,Algeo, Thomas J.. High-resolution carbon isotopic records from the Ordovician of South China: Links to climatic cooling and the Great Ordovician Biodiversification Event (GOBE)[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2010,289(1-4):102-112.
APA	Zhang, Tonggang,Shen, Yanan,&Algeo, Thomas J..(2010).High-resolution carbon isotopic records from the Ordovician of South China: Links to climatic cooling and the Great Ordovician Biodiversification Event (GOBE).PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,289(1-4),102-112.
MLA	Zhang, Tonggang,et al."High-resolution carbon isotopic records from the Ordovician of South China: Links to climatic cooling and the Great Ordovician Biodiversification Event (GOBE)".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 289.1-4(2010):102-112.