South Australia’s enigmatic pink sand was born in ice-covered Antarctic mountains, new research shows

Mon, 8 Jul 2024 12:07:37 +1000

Andrew Pam <xanni [at] glasswings.com.au>

Andrew Pam
<https://theconversation.com/south-australias-enigmatic-pink-sand-was-born-in-ice-covered-antarctic-mountains-new-research-shows-230781>

"In parts of South Australia, long stretches of beach are often blanketed in
large patches of pink sand. Strong swells can dump drifts of reddish grains of
garnet along the shore – but the origin of these colourful crystals has until
now been a mystery.

Garnet is rare in beach sand, as it is destroyed by prolonged exposure to the
waves and currents of the ocean. If we find large amounts of garnet in beach
sand, it means there must be a local source of garnet-bearing rock. But where
is this rock?

The hunt for the source of South Australia’s pink sand took us thousands of
kilometres and half a billion years back in time, to a previously undiscovered
mountain range we believe is now buried deep beneath the Antarctic ice sheet.
Our new study is published in Communications Earth & Environment."

Cheers,
       *** Xanni ***
--
mailto:xanni@xanadu.net               Andrew Pam
http://xanadu.com.au/                 Chief Scientist, Xanadu
https://glasswings.com.au/            Partner, Glass Wings
https://sericyb.com.au/               Manager, Serious Cybernetics

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