TY  - RPRT
TI  - The edge of time: Dating young volcanic ash layers with the 40Ar- 39Ar laser probe
AU  - Y. Chen
AU  - P. E. Smith
AU  - N.M. Evensen
AU  - D. York
AU  - K. R. Lajoie
PY  - 1996
DO  - 10.1126/science.274.5290.1176
UR  - https://pubs.usgs.gov/publication/70018156
ID  - 70018156
ER  -