Collaborative Research: Geomagnetic Variability, Paleoenvironmental Change, and a Tuned Geologic Timescale from Pacific Eocene-Pleistocene Sediments from IODP Expeditions 320-321

合作研究：地磁变率、古环境变化以及来自 IODP 探险 320-321 的太平洋始新世-更新世沉积物的调整地质时间尺度

• 批准号: 0961412
• 负责人: Gary Acton
• 金额: $ 11.99万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-03-01 至 2013-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0961412&HistoricalAwards=false
• 关键词: Collaborative; Research; Geomagnetic; Variability; Paleoenvironmental

This study will conduct paleomagnetic analyses of equatorial Pacific sediment cores spanning the Eocene through the Pleistocene collected during IODP expeditions 320 and 321. Using high resolution U-channel measurements, this project will produce a high resolution magnetostratigraphic record that could serve as a very important chronostratigraphic tool. The project will address five objectives: 1) refine the shipboard magnetostratigraphies, 2) generate continuous geomagnetic intensity and directional paleosecular variation records, 3) generate environmental magnetic records, 4) improve the Cenezoic geologic timescale, and 5) improve our understanding of the Pacific apparent polar wander.Broader impacts: The project would support undergraduate and/or graduate students at the universities of all four PIs. The project also effectively capitalizes on a large investment previously made in an IODP expedition and further enhances the collaborations and exchange of information between several international members of the expedition and the IODP community. By developing such an important chronological tool that helps refine the geologic timescale and improves the geomagnetic intensity record, the project significantly impacts the earth sciences.

This study will conduct paleomagnetic analyses of equatorial Pacific sediment cores spanning the Eocene through the Pleistocene collected during IODP expeditions 320 and 321. Using high resolution U-channel measurements, this project will produce a high resolution magnetostratigraphic record that could serve as a very important chronostratigraphic tool.该项目将解决五个目标：1）完善船上的磁层学，2）产生连续的地磁强度和方向性的古分子变化记录，3）产生环境磁性记录，4）改善塞内佐的地质时间尺度，5）5）对太平洋的临床效果。 pis。该项目还有效地利用了以前在IODP探险中进行的大型投资，并进一步增强了探险队和IODP社区的几个国际成员之间的合作和交流。通过开发这样一个重要的年代学工具，有助于改善地质时间尺度并改善地磁强度记录，该项目显着影响地球科学。