Here's a new one... JT Science. DA MAR 15 1996 v 271 n 5255 PG 1573 AU Schuraytz, B.C. AU Lindstrom, D.J. AU Mittlefehldt, D.W. TI Iridium Metal in Chicxulub Impact Melt: Forensic Chemistry on the K-T Smoking Gun -Mikiel