Past Environmental Conditions on the Antarctic Peninsula: a Palynological Characterization of In-situ Sediments recovered during the 2006 SHALDRIL campaign

南极半岛过去的环境条件：2006 年 SHALDRIL 活动期间发现的原位沉积物的孢粉学特征

• 批准号: 0636747
• 负责人: Sophie Warny
• 金额: $ 10万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0636747&HistoricalAwards=false
• 关键词: Past; Environmental; Conditions; Antarctic; Peninsula

AbstractThis project studies microfossils of plants and algae to understand climate during the earliest glaciations of Antarctica. The microfossils are from marine sediment cores collected by the 2006 SHALDRIL campaign to the Antarctic Peninsula. The work will offer constraints on sea surface temperature, ocean salinity, and terrestrial vegetation to help answer questions such as: What were conditions like on the Antarctic Peninsula during the initial formation of Antarctica's ice sheets? How rapidly did the ice sheets grow? Was their growth driven by global factors such as low atmospheric CO2 or local events like opening of the Drake Passage? The broader impacts include postdoctoral fellow research and outreach via a museum exhibit and a web-based activity book for children.

摘要本项目通过研究植物和藻类的微体化石来了解南极洲最早期冰川时期的气候。这些微化石来自2006年SHALDRIL南极半岛活动收集的海洋沉积物岩心。这项工作将提供对海洋表面温度、海洋盐度和陆地植被的限制，以帮助回答以下问题：在南极洲冰盖最初形成期间，南极半岛的条件是什么？冰盖增长的速度有多快？它们的增长是由全球因素（如低大气CO2）或当地事件（如德雷克海峡的开放）驱动的吗？更广泛的影响包括博士后研究员的研究和通过博物馆展览和基于网络的儿童活动书籍进行的宣传。