Textural indicators of mineralisation potential in porphyry magmatic systems – A framework from the archetypal Yerington district, Nevada

• A petrogenetic framework for textures in the archetypal Yerington porphyry system. textural toolkit deposit exploration. Formation of pegmatitic pods, USTs and massive silica bodies due to undercooling. Thermometry aplite dykes indicates intrusion hotter melts from depth. Miarolitic cavities record timing fluid exsolution mineralisation. Porphyry-type deposits are spatially temporally associated with relatively shallow texturally complex parts magmatic systems. Whilst certain offer snapshots into physical processes which result hydrothermal mineralisation, their documentation interpretation remains disjointed. To address this, we describe a suite magmatic-hydrothermal classic Cu(-Mo-Au) district, Nevada, where Cenozoic extension tilting has exposed unique, ∼8 km palaeodepth, cross-section through Within granite cupolas that underlie Ann Mason deposits, these include pods bodies. Emplaced cupolas, genetically ore formation, host mineralised unidirectional solidification (USTs), segregations, miarolitic early A-type quartz veins. Based on field relations, including associations hypogene petrography Ti-in-quartz crystallisation temperatures, highlight how may location transition ore-formation. By doing so provide exploration geologists assess likely 3D spatial temporal architecture mineralisation at district-prospect scale before employing more invasive expensive techniques.