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: 9117778
• 负责人: Robert Negrini
• 金额: --
• 依托单位: California State University Bakersfield Foundation
• 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=9117778&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记录的古气候和古地磁场从非海洋沉积物，努力确定大而快速的气候变化对非海洋系统的影响。将采用多学科方法建立沉积物的总体地层学和年代学，包括详细的岩性描述、火山灰年代学、放射性测年和古地磁相关性。通过介形虫区系分析、花粉区系分析和介形虫壳的地球化学分析，可以推断古气候。古地磁工作将a）建立地磁漂移与长期变化之间的因果关系; B）建立北美西部更新世古地磁变化的高分辨率“典型剖面”。