Collaborative Research: Experimental Determination of the Partitioning Behavior of REE and HFSE Between Calcic Amphibole and Intermediate Composition Magmas

9405266胡子拟议的研究的目标是创建角闪石熔体实验数据集在2，5，和8 kb的压力和计算表达式描述的参数，控制稀土元素和HFSE分配角闪石。拟议的工作的前提之一是，在闪石熔体系统的稀土元素和HFSE分区的系统学可能是类似的辉石，这是由相化学，压力和温度等因素的组合控制。与合成成分相比，天然成分将用于提供与天然弧玄武岩和安山岩（可能还有碱性和MORB）系统直接相关的数据库。

9405266 Beard The goal of the proposed research is to create amphibole- melt experimental data sets at 2, 5, and 8 kb pressure and to calculate expressions describing the parameters that control REE and HFSE partitioning for amphibole. One of the premises of the proposed work is that the systematics of REE and HFSE partitioning in amphibole-melt systems may be similar to those for pyroxene, which were controlled by a combination of factors including phase chemistry, pressure and temperature. Natural compositions, in contrast to synthetic compositions, will be used to provide a data base that is immediately relevant to natural arc basalt and andesite (and possibly alkaline and MORB) systems.