Geochemical and Isotopic Characterization of Eolian Dust: In Pursuit of Provenance and a More Refined Paleoclimatic Signal

风尘的地球化学和同位素表征：追寻来源和更精细的古气候信号

• 批准号: 9221893
• 负责人: Robert Owen
• 金额: $ 9.05万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-02-01 至 1998-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9221893&HistoricalAwards=false
• 关键词: Geochemical; Isotopic; Characterization; Eolian; Dust

Previous investigation of eolian material preserved in deep sea sediments has resulted in new information concerning the behavior of continental climate and atmospheric circulation on the orbital and tectonic time scales. These studies have been hampered by the need for positive identification of the continental source of the mineral dust and the determination of the degree of dilution or masking of the continental eolian signal by material from volcanic and hydrothermal sources. This award supports research designed to isolate a pure eolian signal and to determine the provenance of the signal by a combination of geochemical and geostatistical techniques.

先前对深海沉积物中保存的风成物质的研究获得了有关大陆气候和大气环流在轨道和构造时间尺度上的行为的新信息。 这些研究因需要积极识别大陆矿物尘埃来源以及确定来自火山和热液来源的物质对大陆风成信号的稀释或掩盖程度而受到阻碍。 该奖项支持旨在分离纯风成信号并通过地球化学和地统计技术相结合确定信号来源的研究。