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

该研究的目标是创建2、5和8 kb压力下的角闪洞-熔体实验数据集，并计算控制角闪洞REE和HFSE分配的参数表达式。本文工作的前提之一是，角闪石-熔体体系中REE和HFSE的分系统可能与辉石的分系统相似，受相化学、压力和温度等因素的综合控制。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。

9406134 Nielsen 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.