Hydrothermal History of the Stillwater Complex

该项目将继续对静水进行详细研究 以了解高温为目标的侵入性情结- 真实的岩浆水环境及其在活化痕迹中的作用 元素成分（特别是铂族元素，或PGE）和 改变了杂岩的原生堆积岩。 模型 PGEs的岩浆与热液流体输运）将进行测试 使用（a）含水相的组成变化（例如， 磷灰石）作为地层高度的函数，并在静脉与 堆积岩，（B）微量元素收支的质量平衡，（c） 流体起源的稳定同位素证据，（d）相平衡 对密集参数的限制，以及（e）初步 矿物在Cl-卤水中溶解度的实验研究 在高温下。

This project will continue detailed studies of the Stillwater Intrusive Complex with the goal of understanding the high tempera- ture hydromagmatic environment and its role in remobilizing trace element components (esp. platinum-group elements, or PGEs) and altering the primary cumulate rocks of the complex. Models of magmatic vs. hydrothermal fluid transport of PGEs) will be tested using (a) compositional variations of hydrous phases (e.g. apatite) as a function of stratigraphic height and in veins vs. cumulate rocks, (b) mass balance of trace element budgets, (c) stable isotope evidence for origin of fluids, (d) phase equilibria constraints on intensive parameters, and (e) preliminary experimental investigations of mineral solubilities in Cl-brines at high temperature.