Electrical Transport in Earth Materials at Low- and High- Pressure

小行星9315749 PI将研究一系列纹理平衡的部分熔融的橄榄石玄武岩系统在一巴的总压力，研究晶粒尺寸，温度，氧逸度，散装组合物，和熔体分数的晶界电响应的影响。 他还将开发方法，将这项工作扩展到高温和高压（高达2000 ℃和20 GPa）的多砧装置。 这项研究的结果将是重要的大地电磁数据的解释和建模，也将揭示在各种地质环境中的晶界输运过程的新的光。 最终的好处将是更详细地了解地球内部的温度分布和状态。 ****

9315749 Tyburczy The PI will study a series of texturally equilibrated partially molten olivine-basalt systems at one bar total pressure, to examine the influence of grain size, temperature, oxygen fugacity, bulk composition, and melt fraction on the grain boundary electrical response. He will also develop methods to extend this work to elevated temperatures and pressures (up to 2000 C and 20 GPa) in a multiple anvil apparatus. The results of this study will be important for the interpretation and modeling of magnetotelluric data and will also shed new light on grain boundary transport processes in a variety of geological environments. The ultimate benefits will be a more detailed understanding of the temperature profile and state of the Earth's interior. ****