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GRGC: Isotopic Studies of Global Change on Continents: Atmospheric CO2

GRGC: Isotopic Studies of Global Change on Continents: Atmospheric CO2
GRGC:大陆全球变化的同位素研究:大气二氧化碳
批准号:
9316597
负责人:
Thure Cerling
金额:
$14.0万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1994
资助国家:
美国
项目状态:
已结题
起止时间:
1994-02-15 至 1997-07-31

项目摘要

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中文摘要
翻译
[9316597] Cerling古土壤碳酸盐和有机质的碳同位素组成可用于估算古大气CO2的浓度。初步结果表明,第三纪大部分时期大气P(CO2)小于800 ppm V,中生代显著升高(2500 ~ 3000 ppm V)。本项目拟继续开展古生代至新生代古大气CO2含量估算工作。我们建议将北美古土壤的结果与欧洲和南美的结果进行比较:在所有大陆上观察到的趋势很可能是全球趋势。
英文摘要
9316597 Cerling The carbon isotopic composition of paleosol carbonate and organic matter can be used to estimate the concentration of CO2 of the ancient atmosphere. Preliminary results indicate that atmospheric P(CO2) was less than 800 ppm V for most of the Tertiary, but was significantly higher during the Mesozoic (2500 to 3000 ppm V). This proposal is to continue to work on estimating the CO2 content of the Paleozoic through Cenozoic paleoatmosphere. We propose to compare the results from paleosols in North America with those in Europe and South America: trends observed on all continents are likely to be global trends.
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COLLABORATIVE RESEARCH: Laminated soil carbonate rinds as a tool for investigating late Quaternary climate-vegetation links
  • 批准号:
    2051587
  • 项目类别:
    Standard Grant
  • 资助金额:
    $15.36万
  • 财政年份:
    2021
  • 负责人:
    Thure Cerling
  • 依托单位:
Isotope Ecology and Paleoecology in East Africa in the Past 4 Ma
  • 批准号:
    1740383
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $60.18万
  • 财政年份:
    2018
  • 负责人:
    Thure Cerling
  • 依托单位:
Collaborative Research: Late Pleistocene paleoclimatology from soil carbonate pendants in the Colorado Plateau.
  • 批准号:
    1325214
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $42.47万
  • 财政年份:
    2013
  • 负责人:
    Thure Cerling
  • 依托单位:
Collaborative Research: Climatic and Biotic Transformations of Neogene Mammalian Faunas of Pakistan
  • 批准号:
    0959093
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $7.0万
  • 财政年份:
    2010
  • 负责人:
    Thure Cerling
  • 依托单位:
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