Fluid inclusion and Re–Os isotopic evidence for hot, Cenozoic mineralization in the central Pennsylvanian Valley and Ridge Province

Abstract

Hypotheses concerning processes and timing of hydrothermal sulfide mineralization in the central Pennsylvanian Appalachians utilize Mississippi Valley-type (MVT) models with Paleozoic ages. To examine this model, we studied sulfide-bearing veins in the Skytop sulfide occurrence that contain pyrite<galena<sphalerite and occurs in central Pennsylvania, USA. In this study, we obtained Re–Os isotope compositions of hydrothermal pyrite and fluid inclusion data from hydrothermal quartz intergrown with these pyrites.