Collaborative Research: Internally-Consistent Model for Trace and Major Element Evolution in Open System Magma Bodies: Merging EC-RAFC and MELTS

地质和地球化学数据提供了明确的证据表明，岩浆房本质上是开放的系统，受到与邻近围岩的相互作用（地壳同化），岩浆补给和晶体形成（分离结晶）。本研究的目的是开发一个广泛适用的计算地球化学工具，岩浆房模拟器（MCS），描述的成分，质量和热演化的开放系统岩浆体同时进行补给，地壳同化，结晶分离。 MCS的基础是一个岩浆系统，是受能量，质量和物种守恒的热力学描述，和MCS的建设将继续通过重新制定和整合两个现存的建模工具，MELTS和能量约束再充电，同化分数结晶（EC-RAFC）。 MCS的应用将允许现场，地球化学，岩石学和地质年代学研究的岩浆系统被放置在一个定量的框架，这将使预测的岩浆系统的行为。 通过将MCS应用于地球上代表的各种岩浆系统，将在如何实现岩浆多样性的基本问题上取得进展。 例如，将探讨与岩浆如何在海洋岛屿（夏威夷）、俯冲带（阿纳尔）、大陆溢流玄武岩（巴拉那）和层状镁铁质侵入体（布什维尔德杂岩）等经典环境中多样化有关的问题。 MCS将在一些网站上提供，供专业研究人员以及研究生和本科生使用，从而为地球化学和岩石学界提供一个用户友好的桌面计算工具，用于定量研究动态开放系统岩浆体的演化。作为推广活动的一部分，将与学生合作开发本科生/研究生岩石学课程的练习。 这些练习将帮助学生发展计算建模的技能，以及使用地质数据的定量分析来回答火成岩学中的相关问题。因此，这项工作不仅会影响大量的专业岩石学家/地球化学家的研究，但它也将有助于学生在研究，课程开发和协作努力的培训。

Geological and geochemical data provide definitive evidence that magma chambers are inherently open systems subject to interaction with adjacent wallrock (crustal assimilation), magma recharge, and crystal formation (fractional crystallization). The objective of this research is to develop a broadly applicable computational geochemical tool, the Magma Chamber Simulator (MCS), to describe the compositional, mass, and thermal evolution of open system magma bodies undergoing simultaneous recharge, crustal assimilation, and fractional crystallization. The basis of the MCS is a thermodynamic description of a magmatic system that is subject to energy, mass and species conservation, and construction of the MCS will proceed via reformulation and integration of two extant modeling tools, MELTS and Energy-Constrained Recharge, Assimilation Fraction Crystallization (EC-RAFC). Application of the MCS will allow field, geochemical, petrological, and geochronological studies of magmatic systems to be placed in a quantitative framework that will enable predictions about the behaviors of magmatic systems. Through application of the MCS to the diverse array of magmatic systems represented on Earth, progress will be made on the fundamental question of how magma diversity is achieved. For example, questions related to how magmas diversify in classical settings such as ocean islands (Hawaii), subduction zones (Arenal), continental flood basalts (Parana), and layered mafic intrusions (Bushveld Complex) will be explored. The MCS will be available on a number of web sites for use by professional researchers as well as graduate and undergraduate students, thereby providing the geochemical and petrological community with a user-friendly desktop computational tool for quantitatively investigating the evolution of dynamic, open-system magma bodies. As part of the outreach activities, exercises for undergraduate/graduate petrology classes will be developed in collaboration with students. These exercises will assist students in developing skills in computational modeling as well as use of quantitative analysis of geologic data to answer relevant questions in igneous petrology. Thus, this work will not only impact the research of a large number of professional petrologists/geochemists, but it will also contribute to the training of students in research, curriculum development, and collaborative endeavors.