TY - RPRT TI - U-Pb geochronology and tectonic implications of a Silurian ash in the Farewell Terrane, Alaska AU - Dwight Bradley AU - Julie A. Dumoulin AU - Dan B. Bradley PY - 2018 DO - 10.3133/pp1814f UR - https://pubs.usgs.gov/publication/pp1814F ID - pp1814F ER -