TY  - RPRT
TI  - U-Pb provenance ages of shocked zircons from the K-T boundary, Raton Basin, Colorado
AU  - Wayne R. Premo
AU  - G. A. Izett
PY  - 1993
UR  - https://pubs.usgs.gov/publication/70209586
ID  - 70209586
ER  -