RUI: Oxygen Isotope Studies of Hydrous Silicates in the Oceanic Lithosphere

RUI：大洋岩石圈中水合硅酸盐的氧同位素研究

• 批准号: 9820287
• 负责人: Peter Saccocia
• 金额: $ 9.41万
• 依托单位: BRIDGEWATER STATE UNIVERSITY
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-03-01 至 2002-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9820287&HistoricalAwards=false
• 关键词: RUI; Oxygen; Isotope; Studies; Hydrous

This project will establish a collaborative research program with the Woods Hole Oceanographic Institution (WHOI) for undergraduate students at Bridgewater State College (BSC). We propose to calibrate by experiment the empirical/theoretical models used to predict oxygen isotope fractionation factors between common hydrous silicates and aluminosilicates and water. The results of these experiments will be used to constrain the thermal history of serpentinization in the oceanic lithosphere through oxygen isotope analyses of altered ultramafic rocks dredged from slow spreading mid-ocean ridge environments. Through involvement in both experimental and field-based inquiry, students working on this project will have an opportunity to experience how two vastly different approaches are used to support the solution to a scientific problem. The project is ideally suited for students in the interdisciplinary geology-chemistry program at BSC and all laboratory based research will be conducted at WHOI, providing students access to a unique research environment and extensive facilities.

该项目将与伍兹霍尔海洋研究所（WHOI）为布里奇沃特州立学院（BSC）的本科生建立一个合作研究计划。我们建议通过实验校准的经验/理论模型，用于预测常见的含水硅酸盐和铝硅酸盐和水之间的氧同位素分馏因子。这些实验的结果将被用来限制在大洋岩石圈的蛇纹石化的热历史，通过氧同位素分析的蚀变超镁铁岩疏浚从缓慢扩张的洋中脊环境。通过参与实验和实地调查，从事该项目的学生将有机会体验如何使用两种截然不同的方法来支持解决科学问题。 该项目非常适合BSC跨学科地质化学课程的学生，所有基于实验室的研究将在WHOI进行，为学生提供独特的研究环境和广泛的设施。