TY - RPRT TI - 40Ar/39Ar geochronology of magmatic-steam alunite from Alunite Ridge and Deer Trail Mountain, Marysvale Volcanic Field, Utah: Timing and duration of miocene hydrothermal activity associated with concealed intrusions AU - Cameron Mark Mercer AU - Michael A. Cosca AU - Albert H. Hofstra AU - Wayne R. Premo AU - Robert O. Rye AU - Gary P. Landis PY - 2022 DO - 10.3390/min12121533 UR - https://pubs.usgs.gov/publication/70240194 ID - 70240194 ER -