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The Sar-Cheshmeh porphyry copper deposit is located in southeastern Iran and is associated with diorite/granodiorite to quartzmonzonite of Miocene age. Copper mineralization was accompanied with both phyllic and potassic alteration. Three main mineralization related alteration episodes (potassic, transition, and phyllic alterations) have been studied in terms of mass transfer and element mobility during the hydrothermal evolution of the Sar-Cheshmeh deposit. In order to illustrate these changes quantitatively, iso...