Collaborative Research: A High Resolution Speleothem Record of Holocene, Last Glacial, and Last Interglacial Climate and Vegetation from the North American Mid-Continent

合作研究：北美中大陆全新世、末次冰期和末次间冰期气候和植被的高分辨率洞穴记录

• 批准号: 0402482
• 负责人: Jeffrey Dorale
• 金额: --
• 依托单位: University of Iowa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-06-01 至 2010-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0402482&HistoricalAwards=false
• 关键词: Collaborative; Research; Resolution; Speleothem; Record

This award uses funds to help obtain a 130,000-year high-resolution record of climate from speleothems in the mid-continent of North America. The primary field site, Crevice Cave, Missouri, was located south of the former Laurentide Ice Sheet during the past interglacial-glacial cycle. The researchers hypothesize that the site is well situated to record changes in mid-continent climate, global climate variability, and vegetation changes during interglacial-glacial cycles. Previous studies by the researchers indicate that speleothems from Crevice Cave have grown continuously over tens of thousands of years. The researchers expect to produce a high-resolution stable isotope record, dated by the Thorium-230 technique, from the North American mid-continent covering most of the last interglacial-glacial cycle. This research will provide a unique educational experience for graduate and undergraduate students and will help improve our knowledge of Holocene climate variability of North America from a new paleoclimate data archive.

该奖项使用资金来帮助从北美中大陆的Speleothems获得130,000年的高分辨率气候记录。 在过去的冰川间冰川循环中，密苏里州缝隙洞穴的主要现场位于密苏里州的缝隙洞穴。 研究人员假设该地点位置良好，可以记录中大陆气候，全球气候变异性和植被冰期冰期周期的变化。 研究人员先前的研究表明，缝隙洞穴的speleothems不断增长了数万年。 研究人员希望从北美中部大陆上产生高分辨率稳定的同位素记录，该记录涵盖了北美中部大陆，涵盖了最后一次冰川冰川冰期循环。 这项研究将为研究生和本科生提供独特的教育经验，并有助于提高我们对北美全新式气候变异性的了解，从新的古气候数据存档中。