TY - RPRT TI - Fingerprinting the K/T impact site and determining the time of impact by UPb dating of single shocked zircons from distal ejecta AU - T.E. Krogh AU - S.L. Kamo AU - B.F. Bohor PY - 1993 DO - 10.1016/0012-821x(93)90150-8 UR - https://pubs.usgs.gov/publication/70017506 ID - 70017506 ER -