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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：
0083415
负责人：
Richard Norris
金额：
$22.5万
依托单位：
Woods Hole Oceanographic Institution
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2000
资助国家：
美国
项目状态：
已结题
起止时间：
2000-12-15 至 2002-10-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0083415&HistoricalAwards=false
关键词：
TransientWarmClimatesDelta13CAnomalies

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中文摘要
翻译
该项目将研究大年早期全球温度的明显快速变化。该研究将利用对浮游生物和底栖有孔虫的同位素分析，以及对几个高积累率深海岩心的碳酸盐含量测量，来确定大年纪早期一次快速冷却事件的地理范围和规模，该事件似乎与希克苏鲁伯撞击事件有关，随后又发生了一次被称为丹C-2的温暖事件，该事件与碳同位素值的巨大变化有关。该研究将侧重于DSDP 465A和ODP 1049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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