Uplift History of the Transantarctic Mountains in Northern Victoria Land

维多利亚北部地区横贯南极山脉的隆升历史

• 批准号: 9017763
• 负责人: Edmund Stump
• 金额: $ 16.35万
• 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: 1991
• 资助国家: 美国
• 起止时间: 1991-05-01 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9017763&HistoricalAwards=false
• 关键词: Uplift; History; Transantarctic; Mountains; Northern

This project addresses the uplift history of the Transantarctic Mountains (TAM) in Northern Victoria Land (NVL), Antarctica, using apatite fission track analysis. The project will attempt to confirm that a mid-Cretaceous uplift event is recorded in the Admiralty Mountains, that most of the uplift in NVL was initiated in the early Cenozoic and whether a later period of uplift, early Paleogene, can be delineated in the south east coastal region where some 10km of uplift is estimated. Results will place the post-Jurassic tectonic evolution of NVL in context with the break-up of Australia and Antarctica and the formation of extensional features within the Ross Embayment. The sampling strategy is to take vertical profiles from granite plutons in the Admiralty Mountains and on the inland edge of the south east coastal region, as well as a horizontal transect. 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 also form an integral part of the analysis.

该项目涉及的隆升历史的 北方维多利亚地的横贯南极山脉（TAM） (NVL)，南极洲，使用磷灰石裂变径迹分析。 该项目将试图确认白垩纪中期 在海军部山脉记录了隆升事件， NVL的大部分隆起开始于 新生代晚期是否有隆升、早期 古近系，可圈定在东南沿海 估计有10公里的隆起。 结果将 将NVL的后侏罗纪构造演化置于 随着澳大利亚和南极洲的解体 罗斯湾内伸展特征的形成。 采样策略是从以下位置获取垂直剖面： 金钟山脉和内陆的花岗岩 东南沿海地区的边缘，以及 水平样带 磷灰石将从 返回样品并由外部处理计数 裂变径迹测年实验室的探测器方法， 亚利桑那州立大学。 跟踪长度研究也形成了一个 分析的一部分。