Microsampling and Integrated Isotopic Studies of Ore Deposits

该研究旨在使用高分辨率和 两类矿石同位素研究的微量取样技术 PI具有丰富经验的矿床-MVT型 北奔宁矿田和科努比亚基地矿床 金属省 重点将放在发展 分析技术，使用同位素方法作为一种手段， 热液流体的规模、时间和成因 大陆岩石圈环流和流体作用 影响质量传递和壳内分异。 （a）多种同位素（Nd、Sr、Pb、O、H、N、Ar、S、C）的整合 单矿物研究，关键矿物的（B）Sm-Nd测年， (c)小细粒矿物的Ar-Ar测年，以及（d）Ar-Ar测年 流体包裹体Rb-Sr定年。 目标是确定 热液流体的生储作用及其相互作用 地壳岩石及其在成矿作用中的作用。 强度 的建议在于整合这么多不同的 同位素系统，到目前为止，由于缺乏 技术发展。 密歇根实验室设备齐全， 大部分的工作建议。

The research is aimed at using high resolution and microsampling techniques for isotopic studies of two types of ore deposits with which the PIs have extensive experience - MVT-type deposits of the North Pennine orefield and the Cornubian base metal province. Emphasis will be placed on developing the analytical technology to use isotopic methods as a means of under- standing the scale, timing, and causes of hydrothermal fluid circulation in the continental lithosphere and the role of fluids in effecting mass transfer and intracrustal differentiation. Integration of (a) multi-isotopic (Nd, Sr, Pb, O, H, N, Ar, S, C) studies of individual minerals, (b) Sm-Nd dating of key minerals, (c) Ar-Ar dating of small, fine grained minerals, and (d) Ar-Ar and Rb-Sr dating of fluid inclusions. The goal is to determine source reservoirs of hydrothermal fluids and their interactions with crustal rocks and their role in mineralization. The strength of the proposal lies in the integration of so many different isotopic systems, which to date has been limited by lack of technological developments. The Michigan lab is well equipped for most of the proposed work.