COLLABORATIVE RESEARCH: RUI: High-Resolution Paleoclimate and Paleomagnetic Records from the Middle to Late Pleistocene, Nonmarine Sediments in South-Central Oregon

合作研究：RUI：中更新世至晚更新世的高分辨率古气候和古地磁记录，俄勒冈州中南部的非海洋沉积物

• 批准号: 9208943
• 负责人: Peter Wigand
• 金额: $ 4.35万
• 依托单位: Nevada System of Higher Education, Desert Research Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-04-01 至 1994-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9208943&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; RUI; Resolution; Paleoclimate

The main focus of this study is to acquire and interpret a middle to late Pleistocene record of paleoclimate and the paleomagnetic field from nonmarine sediments in an effort to determine the effect of large and rapid climate changes on nonmarine systems. The overall stratigraphy and chronology of the sediments will be established using a multidisciplinary approach including detailed lithologic descriptions, tephrochronology, radiometric age dating, and paleomagnetic correlations. Paleoclimate will be inferred from ostracod faunal analyses, pollen floral analyses, and the geochemical analysis of ostracod shells. The paleomagnetic work will a) established a causal relationship between geomagnetic excursions and secular variations and b) established a high resolution "type section" paleomagnetic variations for the Pleistocene of western North America.

本研究的主要重点是获取和解释一个 中晚更新世的古气候记录 古地磁场从非海洋沉积物， 确定大规模和快速气候变化对 非海洋系统 总体地层学和年代学 将采用多学科方法建立沉积物 包括详细的岩性描述，火山灰年代学， 放射性年龄测定和古地磁相关性。 古气候将从介形虫区系分析、花粉 植物区系分析和介形虫壳的地球化学分析。 古地磁学的工作将a）建立因果关系 地磁漂移和长期变化之间的关系，以及B） 建立了高分辨率古地磁“典型剖面” 北美西部更新世的变化。