(SUPER 40) AR/ (SUPER 39) AR AGE-SPECTRUM DATA FOR WHOLE ROCK BASALTS, AND PLAGIOCLASE AND BIOTITE FROM TEPHRA: A TRAVERSE DOWN THE PORCUPINE RIVER, EAST-CENTRAL ALASKA

Kunk, M. J., and Cortesini, H. J., 1992, (super 40) Ar/ (super 39) Ar age-spectrum data for whole rock basalts, and plagioclase and biotite from tephra: a traverse down the Porcupine River, East-Central Alaska: U.S. Geological Survey Open-File Report 92-0701, 81 p.