Collaborative Research: A New Experimental Database for Improving and Extending MELTS

本研究是对广泛使用的melt计算热力学软件包进行重新校准和扩展，以模拟岩浆过程，如地幔熔融、晶体分馏和熔融岩石在~25 GPa压力下的反应。该扩展将利用液相热力学的相关溶液方法，并将取决于实验校准数据库的范围和质量的改进。这个新的数据库是根据文献数据和新的实验构建的，这些实验的目的是：(1)为温度-压力-成分空间的关键部分提供校准的基础真值，(2)解决现有数据库中确定的冲突。修订后的melt软件包和新的实验数据库将在http://melts.uchicago.edu上分发给地球科学界。

This research is a collaborative effort to recalibrate and extend the widely used MELTS computational thermodynamics software package in order to simulate magmatic processes such as mantle melting, crystal fractionation, and melt-rock reaction to pressures of ~25 GPa. This extension of MELTS will utilize an associated solution approach to the thermodynamics of the liquid phase and will depend on improvements to the scope and the quality of the experimental calibration database. This new database is being constructed from literature data and from new experiments designed (1) to provide calibration ground-truth for critical portions of temperature-pressure-composition space and (2) to resolve conflicts identified in the existing database. The revised MELTS software package and new experimental database will be distributed to the Earth Sciences community at http://melts.uchicago.edu.