Analysis of Magma Flow and Wall-Rock Deformation in Plutons Exposed at Different Structural Levels in the White-Inyo Range: Implications for Emplacement Mechanisms of Granitic..

岩浆侵入具有不同构造背景的岩石是一种常见的现象，然而地壳如何容纳岩浆的体积以及岩体侵位的机制一直存在争议。本项目将考察4个代表不同侵入深度的岩体，以确定不同条件下岩体内部结构与围岩之间的相互作用。这项工作将包括使用AMS分析来研究岩浆结构，以确定AMS特征、岩浆和固态微观结构，并将与其他数据相结合，将岩体的内部岩浆结构与作用于其边缘的固态过程联系起来。研究结果将为分析其侵位机制提供依据（侵位机制受既有寄主岩石构造、同侵入区域应力和岩浆压力共同控制）。

The intrusion of magma into rocks representing various tectonic settings is a common phenomena, however how the crust accommodates the volume of magma and the mechanisms involved in emplacement of plutons are controversial. This project will examine four plutons that represent different depths of intrusion to determine the interactions between the internal structure of the plutons and their wall rocks under varying conditions. The work will involve study of magmatic fabrics using AMS analysis to determine the AMS signatures, the magmatic and solid-state microstructures and will be combined with other data to correlate the internal magmatic structures of the plutons to the solid state processes acting an their margins. Results will provide the bases for analysis of their emplacement mechanisms (which are controlled by a combination of pre-existing host rock structures, syn-intrusive regional stresses and magmatic pressures).