TY - RPRT TI - 40 Ar/ 39 Ar age-spectrum data for hornblende, biotite, white mica, and K-feldspar samples from metamorphic rocks in the Great Smoky Mountains of North Carolina and Tennessee AU - Michael J. Kunk AU - Ryan J. McAleer PY - 2011 DO - 10.3133/ofr20111250 UR - https://pubs.usgs.gov/publication/ofr20111250 ID - ofr20111250 ER -