Experimental Petrology of Tertiary North Atlantic Magmas

9419382 Lesher该计划的目标是为北大西洋岩浆的多压分异历史提供实验约束，并评估格陵兰-欧洲大陆地幔柱引发裂谷的地球动力学模型。 将进行两项实验研究。 首先，石榴子石二辉橄榄岩的熔融系统的特点是在条件下的inderred为早第三纪“冰岛”羽使用金刚石骨料技术，以确定组成的石榴子石二辉橄榄岩的低度熔体馏分。 第二，高场强，稀土和过渡族元素之间的玄武质液体，单斜辉石，石榴石的分区将测量到4.5 Gpa。 本研究所获得的数据有望在火成岩岩石学、地球化学、陆地和海洋地质学等领域得到更广泛的应用。

9419382 Lesher The program has as its goal to provide experimental constraints on the polybaric differentiation histories of North Atlantic magmas, and to evaluate geodynamic models of plume-initiated rifting of the Greenland-European continent. Two experimental studies will be conducted. First, the melting systematics of garnet lherzolite will be characterized at conditions inderred for the early Tertiary "Iceland" plume using the diamond aggregate technique to determine the compositions of low degree melt fractions for garnet lherzolite. Second, the partitioning of high field strength, rare earth, and transition group elements between basaltic liquids, clinopyroxene, and garnet will be measured up to 4.5 Gpa. The data obtained in this study are expected to have wider applications in the field of igneous petrology, geochemistry, and terrestrial and marine geology.