Investigation of the behaviour of iron metal during impact melting

撞击在改造行星表面方面起着重要作用。冲击熔融导致熔融的目标岩石在未熔融的岩石碎屑中就位，从而形成被描述为冲击熔融角砾岩的岩石。这些岩石通常由硅酸盐碎屑和硅酸盐为主的冲击熔体组成。然而，在陨石和月球收集物中，也有许多铁金属碎屑的例子，这些碎屑被纳入了撞击熔融角砾岩中。该项目是对各种材料中冲击熔融角砾岩形成过程中金属行为的调查，以了解短加热脉冲的化学和物理效应。重点将是了解的过程中，导致部分熔融的金属纹理的形成在CB石墨，这经历了冲击熔化。这些将与月球样品（阿波罗样品和陨石）和撞击熔化的普通陨石中的金属颗粒的观测结果进行比较

Impacts play a major role in reworking planetary surfaces. Impact melting results in emplacement of molten target rock among unmelted rock clasts, resulting in rocks described as impact melt breccias. These rocks are typically composed of silicate clasts and a silicate-dominated impact melt. However, among the meteorite and lunar collections there are also many examples of iron metal clasts that are incorporated in impact melt breccias. This project is an investigation of the behaviour of metal during formation of impact melt breccias in a variety of materials, in order to understand the chemical and physical effects of short heating pulses. The focus will be on understanding the processes that have led to formation of partially molten metal textures in the CB chondrites, which have undergone impact melting. These will be compared with observations of metal grains in lunar samples (Apollo samples and meteorites) and impact-melted ordinary chondrites