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Carbon Dioxide and its Relationship to Early Neogene Climate Variability

Carbon Dioxide and its Relationship to Early Neogene Climate Variability
二氧化碳及其与新近纪早期气候变化的关系
批准号：
9530279
负责人：
Katherine Freeman
金额：
$15.0万
依托单位：
Pennsylvania State Univ University Park
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1996
资助国家：
美国
项目状态：
已结题
起止时间：
1996-11-01 至 1999-04-30
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9530279&HistoricalAwards=false
关键词：
CarbonDioxideitsRelationshipEarly

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英文摘要
9530279 Freeman The PIs will reconstruct curves of the magnitude of isotopic fractionation by marine plankton during Neogene using delta 13-C of prymnesiophyte-derived long-chain ketones (alkenones) and planktonic carbonate phases. If climate colling is driven by a decline in atmospheric CO2, then on a global scale isotopic fractionation should also decrease. The isotopic proxy method of reconstructing pCO2 will prove useful to evaluate climate change over large temporal and geographic scales during the early Neogene.
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Collaborative Research: Trans-Amazon Drilling Project
Collaborative Research: Bighorn Basin Coring Project (BBCP) - Targeted Continental Drilling of Paleogene Hyperthermals
Town Hall Meeting on Geobiology and Low-Temperature Geochemistry - Fostering Community Input of Emerging Research Opportunities and Priorities
  • 批准号：
    1042930
  • 项目类别：
    Standard Grant
  • 资助金额：
    $0.33万
  • 财政年份：
    2010
  • 负责人：
    Katherine Freeman
  • 依托单位：
    The Geochemical Society
Future Directions in Geobiology and Low-Temperature Geochemistry: a Workshop on Priorities and Research Opportunities in Washington, DC
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