In a message dated 11/16/98 10:13:23 AM EST, franczak@ntplx.net writes: << 1) Any estimates of the time between the impact and the time the iridium layer was created?>> A few hours, days, or weeks. << 2) How close to the iridium layer are dinosaur fossils found? >> Right up to it in the Deccan traps, according to Chatterjee, but never above it.