Thermal and compositional evolution of a cooling magma chamber by boundary layer fractionation: Model and its application for primary magma estimation

19Citations
Citations of this article
15Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

A boundary layer fractionation model for the thermal and compositional evolution of a basaltic magma chamber is presented. The model utilizes a multicomponent thermodynamic approach for relating the compositional structure with the thermal structure of a cooling magma body. The magma composition in the main magma body evolves by transportation of a fractionated interstitial melt from the mushy boundary layer. The consideration of both the thermal and compositional evolution of the magma body enables a realistic simulation of magmatic differentiation as a function of time and space. The model is used to evaluate a primary magma estimation from volcanic rock series. It is shown that the common procedure of olivine addition gives an estimation which is significantly different from the true primary composition if the magma actually differentiated by boundary layer fractionation. This can cause significant errors in estimating the conditions at which the primary magma was generated. Copyright 1999 by the American Geophysical Union.

Cite

CITATION STYLE

APA

Kuritani, T. (1999). Thermal and compositional evolution of a cooling magma chamber by boundary layer fractionation: Model and its application for primary magma estimation. Geophysical Research Letters, 26(13), 2029–2032. https://doi.org/10.1029/1999GL900381

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free