Abstract
An inverse modeling approach to obtain <i>P–T</i> conditions of metamorphic stages involving garnet growth and resorption
Highlights
An inverse approach to a scientific problem involves the determination of the causal factors that satisfy a set of observations
Resulting equili-brium phase diagrams are strictly based on assemblages predicted by Gibbs free energy minimization for a given CBR, i.e., the composition of a rock volume devoid of compositional heterogeneities
Such diagrams combined with mineral isopleths have been intensively used to estimate P–T conditions in metamorphic rocks by comparing results of the model with observations
Summary
An inverse approach to a scientific problem involves the determination of the causal factors that satisfy a set of observations. In metamorphic rocks of a given bulk-rock composition (CBR), pressure (P) and temperature (T) conditions determine the stable mineral assemblage, they constitute the causal factors. Resulting equili-brium phase diagrams are strictly based on assemblages predicted by Gibbs free energy minimization for a given CBR, i.e., the composition of a rock volume devoid of compositional heterogeneities. Such diagrams combined with mineral isopleths have been intensively used to estimate P–T conditions in metamorphic rocks by comparing results of the model with observations
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