GRGC: Isotopic Studies of Global Change on Continents: Atmospheric CO2
GRGC: Isotopic Studies of Global Change on Continents: Atmospheric CO2
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
中文摘要
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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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会议论文
COLLABORATIVE RESEARCH: Laminated soil carbonate rinds as a tool for investigating late Quaternary climate-vegetation links
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批准号:2051587
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项目类别:Standard Grant
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资助金额:$15.36万
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财政年份:2021
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负责人:Thure Cerling
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依托单位:
Isotope Ecology and Paleoecology in East Africa in the Past 4 Ma
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批准号:1740383
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项目类别:Continuing Grant
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资助金额:$60.18万
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财政年份:2018
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负责人:Thure Cerling
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依托单位:
Collaborative Research: Late Pleistocene paleoclimatology from soil carbonate pendants in the Colorado Plateau.
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批准号:1325214
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项目类别:Continuing Grant
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资助金额:$42.47万
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财政年份:2013
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负责人:Thure Cerling
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依托单位:
Collaborative Research: Climatic and Biotic Transformations of Neogene Mammalian Faunas of Pakistan
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批准号:0959093
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项目类别:Continuing Grant
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资助金额:$7.0万
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财政年份:2010
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负责人:Thure Cerling
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依托单位:
Quantitative estimates of paleo-aridity using stable isotopes
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批准号:0617010
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项目类别:Continuing Grant
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资助金额:$0.0万
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财政年份:2006
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负责人:Thure Cerling
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依托单位:
Enamel Maturation in Mammals and Implications for Stable Isotope Analysis for Diet and Climate Signals
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批准号:0345693
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:2004
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负责人:Thure Cerling
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依托单位:
Stable Isotopes in Archaeological Research: An Experimental Study of Diet-Tissue Fractionation
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批准号:0309695
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项目类别:Standard Grant
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资助金额:$13.83万
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财政年份:2003
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负责人:Thure Cerling
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依托单位:
ESH: Collaborative Research: Test of the Synchronicity of Alpine Glacier Responses to Regional High Amplitude Climate Reversals: Southern Andes
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批准号:0001337
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项目类别:Continuing Grant
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资助金额:$17.73万
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财政年份:2000
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负责人:Thure Cerling
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依托单位:
Lava-Dam Outburst Floods and Related Volcanic Features in Western Grand Canyon
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批准号:9909580
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项目类别:Continuing Grant
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资助金额:$16.0万
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财政年份:2000
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负责人:Thure Cerling
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依托单位:
Dating Mammalian Tooth Enamel using 4He
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批准号:9903339
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项目类别:Standard Grant
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资助金额:$9.0万
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财政年份:1999
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负责人:Thure Cerling
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依托单位:
Studies of Carbon and Oxygen in Fossil and Modern Tooth Enamel
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批准号:9604024
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项目类别:Standard Grant
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资助金额:$12.0万
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财政年份:1997
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负责人:Thure Cerling
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依托单位:
Purchase of a Noble Gas Mass Spectrometer
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批准号:9629556
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项目类别:Standard Grant
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资助金额:$27.0万
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财政年份:1996
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负责人:Thure Cerling
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依托单位:
Continued Used of Cosmogenic 3HE and 21 NE in Dating Geomorphic Surfaces
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批准号:9218683
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项目类别:Standard Grant
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资助金额:$7.71万
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财政年份:1993
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负责人:Thure Cerling
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依托单位:
Carbon Isotopic Studies of Fossil Tooth Enamel and the Development of C4 Ecosystems
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批准号:9310546
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项目类别:Continuing Grant
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资助金额:$19.79万
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财政年份:1993
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负责人:Thure Cerling
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依托单位:
Absolute Dating of Limestone Scarps Created by Paleoearthquakes Using Cosmogenic Carbon-14
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批准号:9204835
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项目类别:Continuing Grant
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资助金额:$17.55万
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财政年份:1992
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负责人:Thure Cerling
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依托单位:
Carbon Dioxide Content of Mesozoic and Cenozoic Atmospheres using Paleosols
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批准号:9104451
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项目类别:Continuing Grant
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资助金额:$17.5万
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财政年份:1991
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负责人:Thure Cerling
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依托单位:
Continued Studies of the Exposure Ages Geomorphic Surfaces Using Cosmogenic 3He
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批准号:8903776
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项目类别:Continuing Grant
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资助金额:$10.4万
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财政年份:1989
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负责人:Thure Cerling
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依托单位:
Isotopic Composition of Paleosol Carbonates and Organic Matter
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批准号:8900183
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项目类别:Continuing Grant
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资助金额:$15.84万
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财政年份:1989
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负责人:Thure Cerling
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依托单位:
Paleosols as Indicators of Paleoclimates: Oxygen and Carbon Isotopes in Pedogenic Carbonate
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批准号:8703304
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项目类别:Continuing Grant
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资助金额:$12.5万
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财政年份:1987
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负责人:Thure Cerling
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依托单位:
Isotopic Helium as an Indicator of the Terestrial Exposure Age of Minerals and Implications for Surface Processes
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批准号:8707600
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项目类别:Standard Grant
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资助金额:$6.09万
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财政年份:1987
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负责人:Thure Cerling
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依托单位:
海外基金