|
Post by BearCreekLapidary on Jan 30, 2005 22:31:02 GMT -5
Hi KD,
You might have them now ... but millions of years ago?
The land mass used to be just one big plate and then it broke off into individual land masses ... what we now know as continents. I guess it all depends on the flora/fauna of millions of years ago and the evelution of land as we currently know it today. The western part of the US was a tropical rainforest with the middle of the US and the eastern US being completely submerged with sea water. I believe that is why you find petrified wood in the western, southern and central areas of the US. There is a lot of petrified wood in Kansas that has been replaced with calcite ... it doesn't even look like petrified wood in most cases and it surely isn't worth much as far as tumbling or cabbing are concerned.
That is also why you generally find more dinosaur bones and land based fossils in the western part of the US and more of the marine based fossils in the central and eastern part of the US.
Enjoy,
John
|
|
bwalters
has rocks in the head
Member since March 2004
Posts: 557
|
Post by bwalters on Jan 30, 2005 23:20:28 GMT -5
This is fascinating info, guys! Share more, please.
Thanks, BE
|
|