TY  - RPRT
TI  - Obsidian hydration dating applied to dating of basaltic volcanic activity
AU  - I. Friedman
AU  - N. Peterson
PY  - 1971
DO  - 10.1126/science.172.3987.1028
UR  - https://pubs.usgs.gov/publication/70010333
ID  - 70010333
ER  -