中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 兰州油气中心
Atmospheric palaeo-CO2 estimates based on the carbon isotope and stomatal data of Cheirolepidiaceae from the Lower Cretaceous of the Jiuquan Basin, Gansu Province

文献类型：期刊论文

作者Du, Baoxia1,2; Sun, Bainian1,2; Zhang, Mingzhen3; Yang, Guolin1,2; Xing, Lantian3; Tang, Fenjun1,2; Bai, Yanxia1,2
刊名CRETACEOUS RESEARCH
出版日期2016-07-01
卷号62页码:142-153
关键词Atmospheric palaeo-CO2 Carbon isotope Cheirolepidiaceae Lower Cretaceous Jiuquan Basin
DOI10.1016/j.cretres.2015.07.020
文献子类Article
英文摘要The stable carbon isotope compositions and the stomatal parameters (stomatal density and stomatal index) of four Cheirolepidiaceae species, Brachyphyllum ningxiaensis, Brachyphyllum obtusum, Pseudofrenelopsis dalatzensis and Pseudofrenelopsis gansuensis, were analyzed to recover the late Early Cretaceous atmospheric CO2 levels. The fossil plants were collected from 5 consecutive sedimentary members of the uppermost Zhonggou Formation. Based on the stomatal data, the estimated palaeo-atmospheric CO2 concentrations in the Jiuquan Basin during the late Early Cretaceous were 1060-882 ppmv based on the carboniferous standardization and were 641-531 ppmv based on the recent standardization; the pCO(2) values present at first a decreasing and then an increasing trend within the sedimentary time of the five members. The delta Cp-13 values based on the 21 Brachyphyllum specimens showed a large variation, which ranged from -20.98 parts per thousand to -25.69 parts per thousand, with an average of -24.2 parts per thousand. The values also identified a C3 photosynthetic pathway for the Brachyphyllum specimens. The predicted (delta Ca-13 values varied from -2.1 parts per thousand to -6.38 parts per thousand, with an average of -5.03 parts per thousand. These two proxies were irregular within the different members; therefore, the correlation with the change in atmospheric CO2 concentrations was not significant. Moreover, a water-stressed environment was proposed based on the delta C-13 values of the present fossil plants, a proposal that was also supported by the previous palaeobotanical, palynological and strati graphical evidence. In the present study, an inconsistent relationship between the stable carbon isotope and the stomata values was apparent, which most likely indicated that the stomata numbers of the plant were more sensitive to the variation in the concentration of the atmospheric CO2, whereas the delta C-13 values were sensitive to the moisture conditions. (C) 2015 Elsevier Ltd. All rights reserved.
WOS关键词CO2 CONCENTRATIONS ; FOSSIL PLANTS ; NORTHWEST CHINA ; PHANEROZOIC TIME ; STABLE-ISOTOPES ; PALEOECOLOGICAL IMPLICATIONS ; PALEOCLIMATIC SIGNIFICANCE ; CUTICLE ULTRASTRUCTURE ; PEDOGENIC CARBONATES ; C-13/C-12 RATIOS
WOS研究方向Geology ; Paleontology
语种英语
WOS记录号WOS:000373545400016
资助机构973 Program of China(2012CB822003) ; 973 Program of China(2012CB822003) ; National Natural Science Foundation of China(41402007) ; National Natural Science Foundation of China(41402007) ; China Postdoctoral Science Foundation Funded Project(2015M570865) ; China Postdoctoral Science Foundation Funded Project(2015M570865) ; Fundamental Research Funds for the Central Universities(Lzujbky-2014-132) ; Fundamental Research Funds for the Central Universities(Lzujbky-2014-132) ; National Project of Quality-College Students' Program for Innovation and Entrepreneurship(201510730133) ; National Project of Quality-College Students' Program for Innovation and Entrepreneurship(201510730133) ; 973 Program of China(2012CB822003) ; 973 Program of China(2012CB822003) ; National Natural Science Foundation of China(41402007) ; National Natural Science Foundation of China(41402007) ; China Postdoctoral Science Foundation Funded Project(2015M570865) ; China Postdoctoral Science Foundation Funded Project(2015M570865) ; Fundamental Research Funds for the Central Universities(Lzujbky-2014-132) ; Fundamental Research Funds for the Central Universities(Lzujbky-2014-132) ; National Project of Quality-College Students' Program for Innovation and Entrepreneurship(201510730133) ; National Project of Quality-College Students' Program for Innovation and Entrepreneurship(201510730133)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53461]  
专题地质与地球物理研究所_兰州油气中心
作者单位1.Lanzhou Univ, Key Lab Mineral Resources Western China Gansu Pro, Lanzhou 730000, Peoples R China
2.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources, Gansu Prov Key Lab Petr Resources Res, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Du, Baoxia,Sun, Bainian,Zhang, Mingzhen,et al. Atmospheric palaeo-CO2 estimates based on the carbon isotope and stomatal data of Cheirolepidiaceae from the Lower Cretaceous of the Jiuquan Basin, Gansu Province[J]. CRETACEOUS RESEARCH,2016,62:142-153.
APA Du, Baoxia.,Sun, Bainian.,Zhang, Mingzhen.,Yang, Guolin.,Xing, Lantian.,...&Bai, Yanxia.(2016).Atmospheric palaeo-CO2 estimates based on the carbon isotope and stomatal data of Cheirolepidiaceae from the Lower Cretaceous of the Jiuquan Basin, Gansu Province.CRETACEOUS RESEARCH,62,142-153.
MLA Du, Baoxia,et al."Atmospheric palaeo-CO2 estimates based on the carbon isotope and stomatal data of Cheirolepidiaceae from the Lower Cretaceous of the Jiuquan Basin, Gansu Province".CRETACEOUS RESEARCH 62(2016):142-153.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。