Metamorphism and Intrusion Chronology and Tectonic Evolution of the Central and Southern Transantarctic Mountains Using Sm-Nd Isotopes

利用 Sm-Nd 同位素研究横贯南极山脉中部和南部的变质作用和侵入年代学及构造演化

• 批准号: 9318838
• 负责人: Donald DePaolo
• 金额: $ 13.45万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-03-01 至 1998-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9318838&HistoricalAwards=false
• 关键词: Metamorphism; Intrusion; Chronology; Tectonic; Evolution

9318838 DEPAOLO This award is for support of a three year program to use the Samarium Neodymium (Sm/Nd) dating method to determine a high precision chronological framework for the Late Proterozoic and Early Paleozoic plutonism, deformation and metamorphism in the Transantarctic Mountains. The measurements will be performed on a subset of rock samples collected over five field seasons specifically for this purpose. The Samarium Neodymium method is expected to yield precise ages as a result of recent improvements in measurement precision. The work proposed is entirely a laboratory analytical project with no additional field work involved. ***

该奖项是为了支持一个为期三年的项目，该项目使用钐钕（Sm/Nd）测年方法来确定横贯南极山脉晚元古代和早古生代深部岩浆作用、变形和变质作用的高精度时间框架。测量将在专门为此目的的五个野外季节收集的岩石样本子集上进行。由于最近测量精度的提高，钐钕法有望产生精确的年龄。建议的工作完全是一个实验室分析项目，不涉及额外的实地工作。＊＊＊