U.S.-Switzerland Cooperative Research on Fluid Inclusion- Deformation Microstructure Interactions from Naturally- Deformed Quartz

美国-瑞士关于自然变形石英流体包裹体变形微观结构相互作用的合作研究

• 批准号: 9200658
• 负责人: Eric Johnson
• 金额: $ 1.25万
• 依托单位: Central Michigan University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-01 至 1995-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9200658&HistoricalAwards=false
• 关键词: U.S.; Switzerland; Cooperative; Research; Fluid

This award supports Professor Eric L. Johnson of Central Michigan University to collaborate in geological research with Professor Neil Mancktelow of the Geological Institute of the Swiss Federal Institute of Technology, Zurich. The objective of their research is to gain a better understanding of the relationships between the microstructural development of a quartz-rich rock and the fluid contained in that rock. They will carry out a systematic study of the interaction of grain boundary fluids and fluid inclusions during the progressive deformation of quartz-dominated rocks and veins from the Simplon Fault Zone (SFZ) in southwestern Switzerland and northern Italy. Their research objective requires an interdisciplinary approach which is well served by their complementary expertise in structural geology (Mancktelow) and metamorphic petrology (Johnson.) The SFZ is an ideal natural laboratory for the proposed research since it contains an unusually wide range of rock deformation types that have already been quantitatively studied by Mancktelow. The use of fluid inclusion data from naturally deformed rocks is complicated by the unknown effects of deformation on the compositions and densities of fluid inclusions. During deformation, the modification, genesis, and annihilation of fluid inclusions is intimately tied to the formation and migration of grain boundaries and the distribution, composition and physical properties of the grain boundary fluid(s). The observations and models to be obtained in this international collaborative project will provide a basis for the meaningful use of fluid inclusion data from deformed rocks.

该奖项支持中密歇根大学的Eric L. Johnson教授与苏黎世瑞士联邦理工学院地质研究所的Neil Mancktelow教授在地质研究方面的合作。他们研究的目的是为了更好地理解富含石英的岩石的微观结构发育与岩石中所含流体之间的关系。他们将对瑞士西南部和意大利北部辛普伦断裂带（SFZ）石英为主的岩石和矿脉在渐进变形过程中晶界流体和流体包裹体的相互作用进行系统研究。他们的研究目标需要一种跨学科的方法，这种方法很好地服务于他们在构造地质学（Mancktelow）和变质岩石学（Johnson）方面的互补专业知识。SFZ是一个理想的自然实验室，因为它包含了异常广泛的岩石变形类型，Mancktelow已经对这些类型进行了定量研究。由于变形对流体包裹体的成分和密度的未知影响，使用来自自然变形岩石的流体包裹体数据变得复杂。在变形过程中，流体包裹体的变质、发生和湮灭与晶界的形成和迁移以及晶界流体的分布、组成和物理性质密切相关。在这一国际合作项目中获得的观测结果和模型将为有意义地利用变形岩石的流体包裹体数据提供基础。