Middle Cretaceous pCO(2) Variation in Yumen, Gansu Province and its Response to the Climate Events

doi:10.1111/1755-6724.13555

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 兰州油气中心

	Middle Cretaceous pCO(2) Variation in Yumen, Gansu Province and its Response to the Climate Events
	Lei Xiangtong 2,3,4; Du Zhen 3,4; Du Baoxia 2,3,4; Zhang Mingzhen 1; Sun Bainian 3,4
刊名	ACTA GEOLOGICA SINICA-ENGLISH EDITION
	2018-04-01
卷号	92 期号:2 页码:801-813
关键词	pCO(2) greenhouse climate plant photosynthetic gas exchange mechanical model OAE1b Cold snap
ISSN号	1000-9515
DOI	10.1111/1755-6724.13555
英文摘要	The palaeo-atmospheric CO2 concentration (pCO(2)) variation in the Yumen, Gansu Province during the middle Cretaceous has been reconstructed using the newly established plant photosynthetic gas exchange mechanistic model, and the results show that the pCO(2) values are in the range of about 550-808 ppmv. The present pCO(2) values are higher than the pCO(2) results (531-641 ppmv) of the previous study according to the Recent standardization of the stomatal ratio method, and much lower than the pCO(2) results (882-1060 ppmv) according to the Carboniferous standardization of the stomatal ratio method(.) The present pCO(2) variation is not only within the error range of GEOCARB II and GEOCARB III but also is similar to the reconstructed results based on the biochemistry and carbon isotope models. Besides, the present Brachyphyllum specimens were collected from four consecutive horizons of the upper Zhonggou Formation of the Hanxia Section, and the reconstructed pCO(2) exhibits the reconstructed pCO(2) exhibits a decline trend during the late Aptian to early Albian. This decline variation is probably associated with the Oceanic Anoxic Events (OAE1b) and the Cold snap event. With the combination of pCO(2) during the Albian to Cenomanian recovered by the plant photosynthetic gas exchange mechanistic model, the pCO(2) showed a prominent increase during the late Aptian to early Cenominian, which indicates a response to the greenhouse warming during the middle Cretaceous. Therefore, the mechanical model of the plant photosynthetic gas exchange shows a relatively strong accuracy in the reconstruction of the pCO(2) and can reflect a strong relation between the atmospheric CO2 concentrations and climatic events.
资助项目	National Natural Science Foundation of China[41402007] ; National Natural Science Foundation of China[41602023] ; National Natural Science Foundation of China[40972025] ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS[153102]
WOS关键词	ATMOSPHERIC CARBON-DIOXIDE ; OCEANIC ANOXIC EVENTS ; STOMATAL FREQUENCY-ANALYSIS ; NORTHWEST CHINA ; JIUQUAN BASIN ; PALEOCLIMATIC SIGNIFICANCE ; CO2 CONCENTRATION ; PHANEROZOIC TIME ; SEAWATER COMPOSITION ; CENOZOIC EVOLUTION
WOS研究方向	Geology
语种	英语
出版者	WILEY
WOS记录号	WOS:000437257000021
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/94009]
专题	地质与地球物理研究所_兰州油气中心
通讯作者	Du Baoxia
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources, Gansu Prov Key Lab Petr Resources Res, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China 3.Lanzhou Univ, Key Lab Mineral Resources Western China Gansu Pro, Lanzhou 730000, Gansu, Peoples R China 4.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Lei Xiangtong,Du Zhen,Du Baoxia,et al. Middle Cretaceous pCO(2) Variation in Yumen, Gansu Province and its Response to the Climate Events[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2018,92(2):801-813.
APA	Lei Xiangtong,Du Zhen,Du Baoxia,Zhang Mingzhen,&Sun Bainian.(2018).Middle Cretaceous pCO(2) Variation in Yumen, Gansu Province and its Response to the Climate Events.ACTA GEOLOGICA SINICA-ENGLISH EDITION,92(2),801-813.
MLA	Lei Xiangtong,et al."Middle Cretaceous pCO(2) Variation in Yumen, Gansu Province and its Response to the Climate Events".ACTA GEOLOGICA SINICA-ENGLISH EDITION 92.2(2018):801-813.