Collaborative Research: Physical Properties of Partially Molten Feldspathic Rocks in the Ocean Crust

9529807埃文斯标题：合作研究：洋壳中部分熔融的长石岩石的物理性质洋壳的强度和变形主要取决于由辉长岩组成的下地壳(海洋层3)的强度。这些岩石的强度还没有得到详细的调查，这个项目的目的是确定地壳在压力下和部分熔融时如何变形。这些结果可能解释了为什么一些大洋中脊有很大的轴向山谷，而另一些则没有。熔体的存在也影响地震波的速度，辉长岩的粘度取决于存在的熔体的数量和它在岩石中的分布方式。这项研究的目的是进行这些测量，以便我们能够模拟海洋地壳的变形和地震波的速度。

9529807 Evans Title: Collaborative research: physical properties of partially molten feldspathic rocks in the ocean crust The strength and deformation of the ocean crust depends primarily on the strength of the lower crust (oceanic layer 3) which is composed of gabbros. The strength of these rocks have not been investigated in detail and this project is designed to determine how the crust deforms when it is under pressure and when it is partially molten. These results may explain why some mid-ocean ridges have large axial valleys while others do not. The presence of melt also affects the velocity of seismic waves and the viscosity of gabbro depends on the amount of melt present and how it is distributed in the rock. This study is designed to make these measurements so that we can model the deformation of the ocean crust and the velocity of seismic waves.