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Oxygen Isotopes of Phosphate in Authigenic Carbonate-fluorapatite a Potential Recorder of Deep-water Oxygen Isotope Ratios and Temperatures A Proof of Concept Study

Oxygen Isotopes of Phosphate in Authigenic Carbonate-fluorapatite a Potential Recorder of Deep-water Oxygen Isotope Ratios and Temperatures A Proof of Concept Study
自生碳酸盐-氟磷灰石中磷酸盐的氧同位素是深水氧同位素比率和温度的潜在记录器概念研究的证明
批准号:
0749908
负责人:
Adina Paytan
金额:
$2.0万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2007
资助国家:
美国
项目状态:
已结题
起止时间:
2007-09-15 至 2008-08-31

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项目成果

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中文摘要
翻译
该项目探索了在未保存碳酸钙的海洋环境中,使用保存在磷酸盐结合氧中的氟磷灰石中的18-O同位素来评估海底水温的可行性。为了做到这一点,PI建议从加州边缘的几个推入岩芯中收集和分析深海海水、孔隙水和自生碳酸盐-氟磷灰石的ä18O。PI将参加该地区已经安排好的巡航。此外,PI将分析从代表不同地点和年代的几个样品中提取的自生碳酸盐-氟磷灰石的ä18O,其中存在基于碳酸盐的坚固的海底ä18O记录,并比较数据集。
英文摘要
This project explore the feasibility of using 18-O isotopes preserved in phosphate-bound oxygen in fluorapatite from oceanic environments where calcium carbonate is not preserved to asses bottom water temperatures. To do so the PI proposes to collect and analyze the ä18O of deep seawater, pore waters and authigenic carbonate-fluorapatite from several push cores in the California Margin. The PI will participate in an already scheduled cruise in the region. Additionally, the PI will analyze the ä18O of authigenic carbonate-fluorapatite extracted from a few samples representing different locations and ages for which a robust carbonate based benthic ä18O record exist and compare the data sets.
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海外基金