Extending the High-Resolution Global Climate Record in Santa Barbara Basin: Evaluating Climate Change Potential

扩展圣巴巴拉盆地的高分辨率全球气候记录：评估气候变化潜力

• 批准号: 0623148
• 负责人: James Kennett
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0623148&HistoricalAwards=false
• 关键词: Extending; Resolution; Global; Climate; Record

This renewal project will focus on integrated analyses of 32 piston cores that provide a very high resolution paleoceanographic and paleoclimatological record of the period from ~150 ka to ~700 ka in the Santa Barbara Basin. The piston cores present an unprecedented opportunity to constrain orbital- and millennial-scale changes before 160 ka, and researchers will combine biostratigraphic, paleoceanographic, and sequence stratigraphic methods to analyze the cores and refine the stratigraphic correlation among the cores and interpretations of basin deposition patterns. A specific goal is to determine whether certain proxy measurements (e.g., Mg/Ca) that have been successfully applied to younger core material can be used to reliably interpret older cores in this area. The most important broader impact is the capacity of this research to extend the high resolution climate record back to ~700 ka. The project will also support undergraduate and graduate student researchers.

该更新项目将重点对 32 个活塞岩心进行综合分析，这些岩心提供圣巴巴拉盆地约 150 ka 至约 700 ka 时期的高分辨率古海洋学和古气候记录。 活塞岩心为限制160ka之前的轨道和千年尺度的变化提供了前所未有的机会，研究人员将结合生物地层学、古海洋学和层序地层学方法来分析岩心并完善岩心之间的地层相关性和盆地沉积模式的解释。 具体目标是确定是否可以使用已成功应用于较新岩心材料的某些替代测量值（例如，Mg/Ca）来可靠地解释该区域的较旧岩心。 最重要的更广泛的影响是这项研究能够将高分辨率气候记录扩展到约 700 ka。 该项目还将支持本科生和研究生研究人员。