Metamorphic Kinetics, Fluid Evolution, and Porosity Development in the Contact Aureoles of Basaltic Dikes, Killala Bay, Ireland

爱尔兰基拉拉湾玄武岩岩脉接触光环的变质动力学、流体演化和孔隙度发展

• 批准号: 9018672
• 负责人: Raymond Joesten
• 金额: $ 8.34万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-03-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9018672&HistoricalAwards=false
• 关键词: Metamorphic; Kinetics; Fluid; Evolution; Porosity

The principal investigator will study the intrusion of alkali olivine basalt dikes into limestones at Killala Bay, Ireland. The nature and extent of fluid-rock interactions will be determined from measured reaction progress, supplemented by stable isotope analyses. Rates of fluid generation and transport will be quantified with thermal history models. Numerical models of the intrusion will be used to quantitatively analyze grain coarsening of several minerals, as well as the kinetics of grossularite nucleation and growth, and to provide a timescale for fluid production and interaction. The study will help geologists understand the influence of fluids, and the metamorphic kinetics, associated with the intrusions of igneous rocks.

首席研究员将研究碱的侵入 在爱尔兰的基拉拉湾，橄榄石玄武岩岩脉变成石灰岩。 流体-岩石相互作用的性质和程度将 根据测量的反应进程确定，并补充 稳定同位素分析 流体生成和输送速率 将用热历史模型进行量化。 数值模型 将用于定量分析颗粒 几种矿物的粗化，以及 钙铝榴石成核和生长，并提供一个时间尺度 用于流体产生和相互作用。 这项研究将有助于 地质学家了解流体的影响， 变质动力学，与火成岩侵入有关 岩石化学分析方法