Mixing and Melt Sources in the Miocene Aztec Wash pluton (Nevada, USA) as Revealed by Zircon Hf and O and Whole Rock Sr, Nd and Hf Isotopes

Abstract

The 15.6 Ma Aztec Wash pluton, within the northern Colorado River extensional corridor (Nevada), displays abundant field evidence for open system processes. Previous geochemical studies documented physical and chemical mixing processes that produced a wide spectrum of compositional and textural variants. To better understand