Uplift History of the Ellsworth Mountains, Antarctica

南极洲埃尔斯沃斯山脉的隆起历史

• 批准号: 8816655
• 负责人: Edmund Stump
• 金额: $ 11.55万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-05-01 至 1992-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8816655&HistoricalAwards=false
• 关键词: Uplift; History; Ellsworth; Mountains; Antarctica

The project will address the uplift history of the Ellsworth Mountains, Antarctica, using apatite fission track analysis. Collections will be made during the 1989-90 field season by a four-person party working with snowmobiles from tent camps. The sampling strategy is to collect three horizontal transects of the Ellsworth Mountains, and three vertical profiles on areas of maximum relief. Apatite will be separated from returned samples and processed for counting by the external-detector method in the Fission-Track Dating Laboratory at Arizona State University. Track length studies will also be performed. The project will attempt to determine the time of initiation of uplift, uplift rates, the amount of uplift, and whether more than one episode of uplift has occurred. The Ellsworth Mountains are one of a collage of microplates in West Antarctica which moved relative to each other during and/or subsequent to the breakup of Gondwana. This project will constrain the timing of these movements.

该项目将解决埃尔斯沃思的隆起历史 南极洲山脉，使用磷灰石裂变径迹分析。 收集将在1989-90赛季的外地由一个 一个四人的队伍，用帐篷营地的雪地摩托车工作。 的 抽样策略是收集三个水平断面的 埃尔斯沃思山脉，以及三个垂直剖面的地区， 最大的解脱 磷灰石将与返回的样品分离 并通过外部检测器方法进行计数处理， 亚利桑那州立大学的裂变径迹年代测定实验室。 还将进行轨道长度研究。 该项目将 试图确定隆起开始的时间， 速率，隆起量，以及是否有一个以上的事件 发生了隆起。 埃尔斯沃思山是一幅拼贴画 在南极洲西部的微板块， 在冈瓦纳大陆分裂期间和/或之后。 这 项目将限制这些移动的时间。