Compositional Zoning of Crystals: A Record of Growth and Reaction History

  • Timothy P. Loomis
Part of the Advances in Physical Geochemistry book series (PHYSICAL GEOCHE, volume 3)


Under some geological conditions of formation, most common minerals capable of solid solution have produced compositionally zoned crystals. In fact, the formation of zoned crystals during growth and dissolution may be much more common than generally believed because growth zoning can be readily purged by diffusion in plutonic and metamorphic rocks during their long residence time at high temperature. Thus, many of the reaction and growth kinetic processes studied using only a few minerals may be of more general significance to the crystallization of rocks than is obvious from the annealed end-products that we usually examine.


Metamorphic Rock Bulk Composition Partitioning Model Garnet Crystal Garnet Growth 
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  • Timothy P. Loomis

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