Archaeologica.org

Ice Age Beasts Blasted from Space
December 12, 2007

Eight tusks and a bison skull all show signs of having being blasted with iron-nickel fragments, typical meteorite material. Raised, burnt surface rings trace the point of entry of high-velocity projectiles; and the punctures are on only one side, consistent with a blast coming from a single direction. But the team was astonished to find the animal remains were about 35,000 years old, rather than from the known impact of 13,000 years ago.

http://news.bbc.co.uk/1/hi/sci/tech/7130014.stm

http://www.sciencenews.org/articles/20070602/fob1.asp

As you will see, these findings are discussed in the National Geographic program that will be coming your way.

Probably won't get that programme here in the UK for some time, but these animals must have been damned close to the impact site, any particles falling from above would have been of relativey low velocity.