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Transient Warm Climates and Delta13C Anomalies during the Early Danian

Transient Warm Climates and Delta13C Anomalies during the Early Danian
大年早期的短暂温暖气候和 Delta13C 异常
批准号：
0244264
负责人：
Richard Norris
金额：
$14.48万
依托单位：
University of California-San Diego Scripps Inst of Oceanography
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2002
资助国家：
美国
项目状态：
已结题
起止时间：
2002-09-01 至 2005-11-30
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0244264&HistoricalAwards=false
关键词：
TransientWarmClimatesDelta13CAnomalies

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中文摘要
翻译
该项目将调查大洋洲早期全球气温的明显快速变化。这项研究将利用浮游和海底有孔虫的同位素分析以及几个高积累速率深海岩心中的碳酸盐含量测量来确定大洋早期快速冷却事件的地理范围和强度，该事件似乎与Chixulub撞击事件有关，以及随后被称为Dan C-2事件的温暖事件，该事件与碳同位素值的大幅变化有关。这项研究将集中于来自DSDP 465A和ODP1049的记录。
英文摘要
This project will investigate apparent rapid changes in global temperature in the early Danian. The study will use isotopic analyses of planktic and benthic foraminifers and carbonate content measurements in several high-accumulation rate deep sea cores to determine the geographic extent and magnitude of a rapid cooling event in the early Danian that appears to be related to the Chicxulub impact event and a following warm event termed the Dan C-2 event that is associated with a large change in carbon isotope values. The study will focus on records from DSDP 465A and ODP 1049.
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