Re: Sierras higher in Late Cretaceous

[Tompaleo@aol.com]

In a message dated 96-01-16 16:58:54 EST, you write:

>     In the new issue of Science magazine there is an article about the 
>     Californian Sierra Nevadas and how they were likely to have been as 
>     high as the Andes-up to 13,000 feet- 70 million years ago. (They are 
>     currently about 9,000 to 10,000 feet)
>        This is a change from the more common view that they only started 
>     to rise about 10 million years ago.
>        No wonder we have so few dinosaur fossils...they've been washed out 
>     to sea millions of years ago.
>     

Don't hold me to a reference, because I do not have one, but I remember
reading that the Appalachians were as high as the present day Rockies are (or
even higher) but have since eroded over the last ~250 My to their present
"mole hill" elevations.

Regards,
Thomas R. Lipka
Paleontological/Geologicl Studies