TY - RPRT TI - Unmixing multiple metamorphic muscovite age populations with powder X-ray diffraction and 40Ar/39Ar analysis AU - Ryan J. McAleer AU - David Bish AU - Michael J. Kunk AU - Peter M. Valley AU - Gregory J. Walsh AU - Robert Wintsch PY - 2021 DO - 10.2475/03.2021.02 UR - https://pubs.usgs.gov/publication/70231690 ID - 70231690 ER -