An RUI Proposal: Grain Size Distribution and Depositional Processes of Terrigenous Minerals in the Atlantic Ocean

RUI 提案：大西洋陆源矿物的粒度分布和沉积过程

• 批准号: 9818948
• 负责人: Steven Hovan
• 金额: $ 15.63万
• 依托单位: Indiana University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-02-01 至 2003-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9818948&HistoricalAwards=false
• 关键词: RUI; Proposal; Grain; Size; Distribution

This project will examine the spatial and temporal record of terrigenous material in sediments of the deep Atlantic Ocean. Grainsize and geochemical analyses of particles will be analyzed in surface sediments throughout the ocean, in order to distinguish sources (geochemistry) and transport mode (grainsize). Similar analyses will be conducted in a core off West Africa to determine temporal variability of eolian deposition (hence wind strength and continental aridity) from the Sahel and Sahara over the last glacial/ interglacial cycle. The project will be performed by undergraduate students, providing a research experience opportunity at an undergraduate department.

该项目将研究大西洋深海沉积物中陆源物质的空间和时间记录。将对整个海洋表层沉积物中的颗粒进行粒度和地球化学分析，以区分来源(地球化学)和输送方式(粒度)。将在西非近海的一个核心进行类似的分析，以确定上一次冰川/间冰期周期中萨赫勒和撒哈拉风沙沉积的时间变异性(因此风的强度和大陆的干旱程度)。该项目将由本科生完成，为本科生提供一个在本科系进行研究的机会。