Collaborative Research: Sediment Delta15N in the Equatorial Pacific: The Effect of Diagenesis on Reconstruction of Past Changes in Nitrate Utilization
合作研究:赤道太平洋沉积物Delta15N:成岩作用对重建过去硝酸盐利用变化的影响
基本信息
- 批准号:9503772
- 负责人:
- 金额:$ 10.88万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:1995
- 资助国家:美国
- 起止时间:1995-08-15 至 1998-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
9503772 Altabet The authors propose to explore the potential of stable nitrogen isotopes in marine sediments as tracers of past nitrate utilization, and hence of primary production. They will examine the difference between water-column and surface sediment ratios, explore the feasibility of analyzing organic material in the matrices of individual microfossils, and will examine a typical sediment record from the equatorial Pacific to determine whether the changes seen from glacial to interglacial periods might be only an artifact of differential preservation. ***
小行星9503772 作者建议探索海洋沉积物中稳定氮同位素的潜力,作为过去硝酸盐利用的示踪剂,从而初级生产。 他们将研究水柱和表面沉积物比率之间的差异,探索分析单个微体化石基质中有机物质的可行性,并将研究赤道太平洋的典型沉积物记录,以确定从冰期到间冰期的变化是否可能只是差异保存的人工制品。 ***
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Roger Francois其他文献
Cool stratification
凉爽的分层
- DOI:
10.1038/428031a - 发表时间:
2004-03-04 - 期刊:
- 影响因子:48.500
- 作者:
Roger Francois - 通讯作者:
Roger Francois
Distribution, sources and dispersion of polybrominated diphenyl ethers in the water column of the Strait of Georgia, British Columbia, Canada
多溴联苯醚在加拿大不列颠哥伦比亚省乔治亚海峡水柱中的分布、来源和扩散
- DOI:
10.1016/j.scitotenv.2023.162174 - 发表时间:
2023-05-15 - 期刊:
- 影响因子:8.000
- 作者:
Yuanji Sun;Roger Francois;Richard Pawlowicz;Maria T. Maldonado;Samuel W. Stevens;Maureen Soon - 通讯作者:
Maureen Soon
The influence of deep water circulation on the distribution of 231 Pa and 230 Th in the Pacific Ocean
- DOI:
https://doi.org/10.1016/j.epsl.2020.116674 - 发表时间:
2021 - 期刊:
- 影响因子:
- 作者:
Yiming Luo;Jorg Lippold;Susan E Allen;Jerry Tjiputra;Samuel L. Jaccard;Roger Francois - 通讯作者:
Roger Francois
sup231/supPa/sup230/supTh ratios in the Atlantic and Indian Oceans and their implications for the application of the ratios as an ocean circulation proxy
大西洋和印度洋中的²³¹Pa/²³⁰Th比值及其作为海洋环流替代指标应用的意义
- DOI:
10.1016/j.quascirev.2025.109448 - 发表时间:
2025-09-01 - 期刊:
- 影响因子:3.300
- 作者:
Anne L. Leal;Robert F. Anderson;Alexandra Bausch;Martin Q. Fleisher;Sunil Kumar Singh;Yong Lao;Venkatesh Chinni;Roger Francois - 通讯作者:
Roger Francois
Climate-related variations in denitrification in the Arabian Sea from sediment 15N/14N ratios
从沉积物 15N/14N 比值看阿拉伯海反硝化作用与气候相关的变化
- DOI:
10.1038/373506a0 - 发表时间:
1995-02-09 - 期刊:
- 影响因子:48.500
- 作者:
Mark A. Altabet;Roger Francois;David W. Murray;Warren L. Prell - 通讯作者:
Warren L. Prell
Roger Francois的其他文献
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{{ truncateString('Roger Francois', 18)}}的其他基金
Particle Flux and Remineralization at Hawaii Ocean Time-Series Station ALOHA: Development of a New Estimation Method Based on 230Th and 231Pa
夏威夷海洋时间序列站 ALOHA 的粒子通量和再矿化:开发基于 230Th 和 231Pa 的新估计方法
- 批准号:
0117922 - 财政年份:2001
- 资助金额:
$ 10.88万 - 项目类别:
Standard Grant
Quantifying Changes in Thermohaline Circulation Rates During the Last 30 ka Using Radionuclides in Atlantic Sediments
使用大西洋沉积物中的放射性核素量化过去 30 ka 期间温盐环流率的变化
- 批准号:
0099176 - 财政年份:2001
- 资助金额:
$ 10.88万 - 项目类别:
Continuing Grant
Collaborative Research: A Global Database of Deep Sea Calcite Burial During the Last 20 Ka
合作研究:过去 20 Ka 期间深海方解石埋藏的全球数据库
- 批准号:
9527777 - 财政年份:1996
- 资助金额:
$ 10.88万 - 项目类别:
Continuing Grant
Nitrogen and Carbon Isotope Paleo-Proxy Verification in the Southern Ocean
南大洋氮和碳同位素古代理验证
- 批准号:
9531761 - 财政年份:1996
- 资助金额:
$ 10.88万 - 项目类别:
Continuing Grant
Carbonate Production and Dissolution Rates During the Past 30,000 Years by Th-230 Profiling in Deep-Sea Sediment Cores
通过深海沉积物岩心 Th-230 剖面分析得出过去 30,000 年碳酸盐的产生和溶解速率
- 批准号:
8922707 - 财政年份:1990
- 资助金额:
$ 10.88万 - 项目类别:
Continuing Grant
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