Comparative Petrologic Structural and Geochronometric Investigation of High-Grade Metamorphic Rocks in the Transantarctic Mountains: Nimrod Group and Lanterman

横贯南极山脉高品位变质岩的比较岩石学结构和年代学研究：尼姆罗德群和兰特曼

• 批准号: 9219555
• 负责人: Nicholas Walker
• 金额: $ 19.21万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-01 至 1994-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9219555&HistoricalAwards=false
• 关键词: Comparative; Petrologic; Structural; Geochronometric; Investigation

This award is for support for a project to develop a data base from which regional metamorphic, deformation, and age relations of high-grade basement metamorphic rocks in the Transantarctic Mountains of Antarctica can be better understood. The rocks to be examined come from the Nimrod Group in the central Transantarctic Mountains and the Lanterman Metamorphic Complex in northern Victoria Land. Improved documentation of their petrogenesis, age, and tectonic evolution are important for a thorough understanding of how the paelo-Antarctc craton evolved and how the supercontinent Gondwana formed. This study will involve detailed field geologic mapping and sampling, structural, microstructural, kinematic and fabric analysis, metamorphic petrology and quantitative geothermobaro-metry, and Uranium-Lead geochronometry.

这个奖项是为了支持一个项目，开发一个数据库， 从中找出区域变质、变形与时代的关系 中的高级基底变质岩 南极洲的山脉可以更好地了解。 山石 来自中部的尼姆罗德集团 南极洲的横贯山脉和兰特曼变质杂岩 北方维多利亚地。 改进其 岩石成因，年龄和构造演化是重要的， 对Paelo-TC克拉通如何演化的透彻了解 以及冈瓦纳超大陆是如何形成的 本研究将 包括详细的野外地质测绘和取样，结构， 显微构造、运动学和组构分析、变质 岩石学和定量地质温压法，以及铀-铅 地质年代学