[LMB] Negri

Richard G. Molpus rgmolpus at flash.net
Sat Sep 11 02:58:07 BST 2021


 East Africa is splitting from Central Africa at about the same rate. Eventually, Somalia and the Horn of Africa will become a peninsula; then a huge island of it's own.  
Come back in 5 million years or so to have a look.

    On Friday, September 10, 2021, 03:10:12 PM CDT, Fred <fred.fredex at gmail.com> wrote:  
 
 Robert Woodward used the important/key phrase:
"what is now Australia"
the important thing being that back in long-ago (even in) geologic time,
the landmasses weren't where they are now, not even nearby. therefore what
is now five miles above sealevel may have been 1 or 3 miles below when the
rocks on top were formed. parts of what is now Antarctica once existed in
lush tropics. Needless to say, they weren't where they are now.

So, it isn't like the south pole used to be tropics, it is that the land
has moved. it takes a long time.

E.g., the north Atlantic ocean is widening by something in the neighborhood
of two inches per year. Geologically speaking, that's speedy! And similar
rates apply to the sliding of the Pacific plate northward along the US west
coast. Hence mountains, valleys below sealevel, earthquakes, and volcanoes.

Fred



On Fri, Sep 10, 2021 at 11:50 AM Marc Wilson <marc.wilson at gmx.co.uk> wrote:

> On Thu, 9 Sep 2021 21:25:49 -0700, Robert Woodward
> <Robert_A_Woodward at comcast.net> wrote:
>
> >
> >
> >> On Sep 9, 2021, at 3:43 PM, Raymond Collins <rcrcoll6 at gmail.com> wrote:
> >>
> >> I got curious so I Google Earthed it which does seem small and seasonal?
> >> Still it seems like a nice island to get away from it all. I also
> noticed
> >> the Northwest coast seemed to have had glacial scoring. I that the case?
> >> Did Australia have glaciers in the past?
> >>
> >
> >There were glaciers in what is now Australia during the Carboniferous and
> Permian periods.
>
> The limestone outcrops of England's Peak District were once under
> shallow tropical seas.  Deep time changes everything.
> --
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> poor people.
>  - graffito
>
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