Re: North Sea find

[Phil Bigelow <bigelowp@juno.com>]

On Thu, 27 Apr 2006 08:51:01 +1000 Dann Pigdon <dannj@alphalink.com.au>
writes:
> On Wed, 26 Apr 2006 08:52:15 -0400, brushes2 wrote
> > Under 2256 M of mud! That means sediment has accumulated at the 
> rate 
> > of 1.128 X 10-5 M/year. 
> 
> Assuming of course there has been no erosion during that time (which 
> is a big 
> assumption, since these sediments were once at the surface). Even 
> once they 
> became a sea floor, just a single under-sea earthquake can cause 
> massive 
> amounts of sediments to move.


Indeed.  Alluvial plains tend to erode quite rapidly after they are
deposited.

Not only that, but the shallower parts of the North Sea were scoured by
glaciers from the various Pleistocene glacial maximums.

<pb>
--