Mass Transfer Processes During Crustal Rifting

地壳裂谷期间的传质过程

• 批准号: 9004007
• 负责人: Dennis Bird
• 金额: $ 16万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-07-01 至 1992-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9004007&HistoricalAwards=false
• 关键词: Mass; Transfer; Processes; During; Crustal

The proposed research will focus on the mineralogic, and structural features preserved in gabbros and basalts of the Kap Edvard Holm, Nordre Aputiteq and Patulajivit complexes in order to characterize processes of elemental mass transfer related to hydrothermal metasomatism, stoping and assimilation during rifting in the North Atlantic. To achieve these goals we will address the following questions: 1) What are the cumulative effects of multiple intrusions on hydrothermal metasomatism and the evolution of porosity and permeability in gabbroic plutons and basaltic rocks? 2) How does hydrothermal metasomatism of host rocks affect subsequent mass transfer from host rocks to magma during stoping and assimilation? Completion of the research outlined in this proposal will provide a framework for understanding the geochemical and structural evolution of gabbro-hosted magma-hydrothermal systems during crustal rifting.

拟议的研究将侧重于矿物学， 卡普辉长岩和玄武岩中保存的结构特征 Edvard霍尔姆、Nordre Aputiteq和Patulajivit络合物 表征与以下有关的元素传质过程： 热液交代作用、充填作用和同化作用 北大西洋的裂谷 为了实现这些目标，我们将 回答以下问题： 1)多个入侵的累积影响是什么 热液交代作用与孔隙演化 辉长岩和玄武质岩石的渗透性 2)寄主岩石的热液交代作用如何影响 回采过程中围岩向岩浆的后续质量转移 同化？ 完成本提案中概述的研究将提供 一个理解地球化学和结构的框架 辉长岩岩浆热液系统演化 地壳断裂