Collaborative Research: Understanding the Causes of Continental Intraplate Tectonomagmatism: A Case Study in the Pacific Northwest

合作研究：了解大陆板内构造岩浆作用的原因：太平洋西北地区的案例研究

• 批准号: 0507248
• 负责人: Matthew Fouch
• 金额: --
• 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: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0507248&HistoricalAwards=false
• 关键词: Collaborative; Research; Understanding; Causes; Continental

0507248FouchThese awards involve an investigation of the causes and consequences of intraplate volcanism in the Tertiary-Recent magmatic province in eastern Oregon. The project will focus on four main questions related to generating the intraplate magmatism: 1) Is a plume required? ; 2) What role does subduction play? ; 3) What role does lithospheric structure play in generating/controlling magmatism and how has magmatism affected lithospheric structure? ; and 4) What role does continental crust play in magmatism and how is continental crust modified by magmatism? To answer these questions the PI's will acquire passive (James and Fouch) and active (Keller) seismic data, incorporating data from the Bigfoot array (US Array), new geochronological and geochemical data (Carlson, Duncan, Grunder, Hart) and experimental petrological investigations (Grove) on targeted magmatic products and undertake numerical and laboratory dynamical modeling.

0507248Fouchthese奖项涉及调查俄勒冈州东部大三级岩浆省火山盘内火山的原因和后果。 该项目将重点关注与产生板岩岩浆作用有关的四个主要问题：1）是否需要羽流？ ; 2）俯冲扮演什么角色？ ; 3）岩石圈结构在产生/控制岩浆作用中起着什么作用？岩浆作用如何影响岩石圈结构？ ; 4）大陆壳在岩浆中起什么作用，大陆壳如何通过岩浆作用来改变？ 为了回答这些问题，PI将获得被动的（James and Fouch）和Active（Keller）地震数据，并将大脚阵阵列（美国阵列），新的地球学和地球化学数据（Carlson，Duncan，Duncan，Grunder，Hart，Hart，Hart）以及实验性岩石学研究（GROVE）（GROVE（GROVE））结合到目标和实验性的数值模型。