A Collaborative Study of the Origins of Compositional and Mineralogical Zonation in La Gloria Pluton, Central Chilean Andes

智利中部安第斯山脉 La Gloria Pluton 成分和矿物分区起源的合作研究

基本信息

批准号：
8822573
负责人：
Gail Mahood
金额：
$ 1.47万
依托单位：
Stanford University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1989
资助国家：
美国
起止时间：
1989-02-01 至 1991-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8822573&HistoricalAwards=false
关键词：
Collaborative Study Origins Compositional Mineralogical

项目摘要

This award supports U.S. - Chile cooperative research in mineralogical origins to be carried out by Gail Mahood of Stanford University and Miguel Angel Parada of the University of Chile. They propose to study compositional and mineralogical zoning possibly caused by crystallization and convective fractionation in liquid magmas. Chilean granites will be searched for evidence of predictive model features such as trapped boundary layers, banding indicating vertical magma flow, rock zones and horizontal layering reflecting convection cells. The La Gloria pluton (granitelike, crystalline rock formed far below the earth surface under high heat and pressure and slowly cooled) exhibits 2.5 km of vertical relief and extensive features of this formation history. Prof. Parada, well-trained and Chile's most active petrologist, knows the regional geologic relations. His expertise will complement Dr. Mahood's on mineralogical chemistry and, through the cooperation with Stanford, he will be able to use high quality analytical equipment and modern petrological programs. A Chilean graduate student, chosen competitively, will receive valuable training and will study at Stanford. Dr. Mahood will hold a NSF Visiting Professorship for Women at the University of Michigan during part of this study. All in all, the mix of talents and opportunities amply fulfill the goals of the Science in Developing Countries program.

该奖项支持斯坦福大学的盖尔·马胡德（Gail Mahood）和智利大学的米格尔·安赫尔·帕拉达（Miguel Angel Parada）开展的美国-智利矿物学起源合作研究。他们建议研究可能由液态岩浆结晶和对流分馏引起的成分和矿物学分区。将搜索智利花岗岩以寻找预测模型特征的证据，例如捕获边界层、指示垂直岩浆流的条带、岩石区域和反映对流单元的水平分层。 La Gloria 岩体（类似花岗岩的结晶岩石，在高温高压下在地表以下深处形成并缓慢冷却）展现出 2.5 公里的垂直起伏和该形成历史的广泛特征。帕拉达教授是训练有素的智利最活跃的岩石学家，了解区域地质关系。他的专业知识将补充 Mahood 博士在矿物化学方面的专业知识，并且通过与斯坦福大学的合作，他将能够使用高质量的分析设备和现代岩石学程序。经过竞争选拔的智利研究生将接受宝贵的培训并在斯坦福大学学习。在这项研究的一部分期间，Mahood 博士将担任密歇根大学 NSF 女性客座教授。总而言之，人才和机会的结合充分实现了发展中国家科学计划的目标。