TY  - RPRT
TI  - Geology and complex collapse mechanisms of the 3.72 Ma Hannegan caldera, North Cascades, Washington, USA
AU  - David S. Tucker
AU  - Wes Hildreth
AU  - Tom Ullrich
AU  - Richard M. Friedman
PY  - 2007
DO  - 10.1130/b25904.1
UR  - https://pubs.usgs.gov/publication/70032860
ID  - 70032860
ER  -