rcrcoll6 at gmail.com
Fri Sep 10 23:46:02 BST 2021
I'm old enough to remember when plate tectonics theory was finally taught
in geology class.
On Fri, Sep 10, 2021, 3:10 PM 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.
> On Fri, Sep 10, 2021 at 11:50 AM Marc Wilson <marc.wilson at gmx.co.uk>
> > 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>
> > >>
> > >> I got curious so I Google Earthed it which does seem small and
> > >> 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
> > >> Did Australia have glaciers in the past?
> > >>
> > >
> > >There were glaciers in what is now Australia during the Carboniferous
> > Permian periods.
> > The limestone outcrops of England's Peak District were once under
> > shallow tropical seas. Deep time changes everything.
> > --
> > News: rich people paying rich people to tell middleclass people to blame
> > poor people.
> > - graffito
> > --
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