First-principles calibration of 38Ar tracers : implications for the ages of 40Ar/39Ar fluence monitors /
Lanphere, Marvin A.,1933-
Dalrymple, G. Brent.
Reston, VA : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : USGS Information Services [distributor,
2000]
Includes bibliographical references (p. 10).
Argon-argon dating