TY  - RPRT
TI  - Microprobe analysis of biotites - A method of correlating tuff beds in the Green River Formation, Colorado and Utah
AU  - George A. Desborough
AU  - Janet K. Pitman
AU  - John Roswell Donnell
PY  - 1973
UR  - https://pubs.usgs.gov/publication/70159645
ID  - 70159645
ER  -