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RE: Scientists conclude asteroid, not volcanoes, wiped out dinosaurs



Does that mean the post KT intertrappean beds are marine? Or terrestrial
with no fossils?

-----Original Message-----
From: David Marjanovic [mailto:david.marjanovic@gmx.at] 
Sent: 07 March 2010 11:35
To: DML
Subject: Re: Scientists conclude asteroid, not volcanoes, wiped out
dinosaurs

>  Did some of these papers also find the KT boundary is one of these
>  intertrappen beds?

Yes; in at least one place, the boundary layer (complete with iridium 
spike) lies within an intertrappean sediment bed, and sauropod eggshell 
fragments reach all the way up to the boundary and then stop.

Unfortunately there don't seem to be any other Paleocene terrestrial 
sediments in India, or at least I haven't heard of any. That's a great 
pity, because there's currently no terrestrial fossil record in India 
between the K-Pg boundary and the early Eocene when India had already 
collided with Asia. The period of isolation isn't documented.