And what's the time frame for that much sediment building up?
-
-
-
If a certain recently declassified book is correct, 9 to 12 hours. As long as it took the mammoths to be herded at peaks and freeze to death and get buried in ice in parts of nowadays Siberia.
- Show replies
New conversation -
-
-
Slightly Modify “sediment” to “organic grasses which turned to dirt over time” and you’re all set!
-
No. The extirpation of the forests would have resulted in a lot of erosion.
- Show replies
New conversation -
-
-
WTF? Who would know!
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
spectacular
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
How long would they have to be there to have been covered by that much sediment?
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.