TY  - RPRT
TI  - Use of Ar36 to Evaluate the Incorporation of Air by Ash Flows
AU  - Richard F. Marvin
AU  - H. H. Mehnert
AU  - D. C. Noble
PY  - 1970
DO  - 10.1130/0016-7606(1970)81[3385:uoatet]2.0.co;2
UR  - https://pubs.usgs.gov/publication/70226505
ID  - 70226505
ER  -