干旱区生态环境知识资源中心(Arid): Early Jurassic climate and atmospheric CO2 concentration in the Sichuan paleobasin, southwestern China

Arid

DOI	10.5194/cp-16-2055-2020
	Early Jurassic climate and atmospheric CO2 concentration in the Sichuan paleobasin, southwestern China
	Li, Xianghui; Wang, Jingyu; Rasbury, Troy; Zhou, Min; Wei, Zhen; Zhang, Chaokai
通讯作者	Li, XH
来源期刊	CLIMATE OF THE PAST
ISSN	1814-9324
EISSN	1814-9332
出版年	2020
卷号	16 期号:6 页码:2055-2074
英文摘要	Climatic oscillations have been developed through the (Early) Jurassic from marine sedimentary archives but remain unclear from terrestrial records. This work presents investigation of climate-sensitive sediments and carbon and oxygen isotope analyses of lacustrine and pedogenic carbonates for the Early Jurassic Ziliujing Formation taken from the Basin in southwestern China. Sedimentary and stable isotope proxies manifest that an overall secular (semi)arid climate dominated the Sichuan Basin during the Early Jurassic, except for the Hettangian. This climate pattern is similar to the arid climate in the Colorado Plateau region in western North America but is distinct from the relatively warm and humid climate in northern China and at high latitudes in the Southern Hemisphere. The estimated atmospheric CO2 concentration (pCO(2)) from carbon isotopes of pedogenic carbonates shows a range of 980-2610 ppmv (similar to 3.5-10 times the pre-industrial value) with a mean of 1660 ppmv. Three phases of pCO(2) (the Sinemurian 1500-2000 ppmv, the Pliensbachian 1000-1500 ppmv, and the early Toarcian 1094-2610 ppmv) and two events of pCO(2) rapidly falling by similar to 1000-1300 ppmv are observed, illustrating the pCO(2) perturbation in the Early Jurassic. The perturbation of pCO(2) is compatible with seawater temperature and carbon cycle from the coeval marine sediments, suggesting a positive feedback of climate to pCO(2) through the Early Jurassic.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000589225400002
WOS关键词	OCEANIC ANOXIC EVENT ; CARBON-ISOTOPE RECORDS ; EARLY TOARCIAN ; NAVAJO SANDSTONE ; SEAWATER TEMPERATURE ; PEDOGENIC CARBONATE ; DOLOMITE FORMATION ; MARINE CARBONATE ; MASS EXTINCTION ; FOSSIL WOOD
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
来源机构	南京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327496
作者单位	[Li, Xianghui; Wang, Jingyu; Zhou, Min; Wei, Zhen; Zhang, Chaokai] Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China; [Rasbury, Troy] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA
推荐引用方式 GB/T 7714	Li, Xianghui,Wang, Jingyu,Rasbury, Troy,et al. Early Jurassic climate and atmospheric CO2 concentration in the Sichuan paleobasin, southwestern China[J]. 南京大学,2020,16(6):2055-2074.
APA	Li, Xianghui,Wang, Jingyu,Rasbury, Troy,Zhou, Min,Wei, Zhen,&Zhang, Chaokai.(2020).Early Jurassic climate and atmospheric CO2 concentration in the Sichuan paleobasin, southwestern China.CLIMATE OF THE PAST,16(6),2055-2074.
MLA	Li, Xianghui,et al."Early Jurassic climate and atmospheric CO2 concentration in the Sichuan paleobasin, southwestern China".CLIMATE OF THE PAST 16.6(2020):2055-2074.