Cooperative Research in Sub-Saharan Africa on Oxygen Isotope Ratios in Freshwater Gastropods as Paleoclimatic Indicators

撒哈拉以南非洲地区淡水腹足动物氧同位素比作为古气候指标的合作研究

• 批准号: 8521169
• 负责人: Paul Abell
• 金额: $ 0.3万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-15 至 1989-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8521169&HistoricalAwards=false
• 关键词: Cooperative; Research; Sub; Saharan; Africa

This proposal requests supplemental funds for NSF Grant No. EAR8416071 to permit Dr. Paul I. Abell, Professor of Chemistry, University of Rhode Island, to pursue with Dr. Christine Betterton, Bayero University, Nigeria, Dr. H. V. Clarke, University of Zimbabwe, and other scientists in Sub-Saharan Africa, for a period of 6 months, a program of cooperative research on oxygen isotope ratios in freshwater gastropods as a paleoclimatic indicator. Samples of modern gastropod shells and their aqueous environments will be studied first to provide base line data. The technique then will be applied to selected fossil gastropods in studies of paleoenvironments from a variety of locations in Sub-Saharan Africa. Freshwater gastropods record environmental information in the stable oxygen isotope ratios of their shells. This information includes a sensitivity toward temperature in the decomposition of the calcium carbonate of the shell as well as evaporative effects stemming from the host body of water in which the gastropod lived. This study may provide additional insights into paleoenvironments. This project is relevant to the objectives of the Science in Developing Countries Program which seeks to increase the level of cooperation between U.S. scientists and engineers and their counterparts in developing countries through the exchange of scientific information, ideas, skills, and techniques and through collaboration on problems of mutual benefit.

该提案要求为NSF批准号EAR8416071提供补充资金 允许保罗一世博士阿贝尔，化学教授，大学 罗得岛，与克莉丝汀贝特顿医生，巴耶罗 尼日利亚大学，H. V. Clarke，津巴布韦大学， 撒哈拉以南非洲的其他科学家，为期6个月， 淡水氧同位素比合作研究计划 腹足类作为古气候指示器。 现代腹足类标本 贝壳及其水环境将首先进行研究， 基线数据 然后，该技术将应用于选定的化石 腹足类在不同地点古环境研究中的作用 于撒哈拉以南非洲的 淡水腹足类在马厩中记录环境信息 氧同位素比率的变化。 该信息包括 在钙的分解中对温度的敏感性 碳酸盐的外壳以及蒸发的影响， 腹足动物生活的水体。 这项研究可能 为古环境提供了更多的见解。 这个项目是 与发展中国家的科学目标相关的 该计划旨在提高美国与美国之间的合作水平。 科学家和工程师以及他们的同行， 各国通过交流科学信息，思想， 技能和技术，并通过在共同问题上的合作， 效益