Portal:Earth sciences/DYK/5
... that
plate reconstructions
(example pictured)
that use
magnetic stripe
patterns can only go back to the
Jurassic
period, as there is no older
oceanic crust
?
...that during hot
greenhouse periods
in Earth's history, the
tropics appeared to be cooler
than they are today?
...that the
2002 Sumatra earthquake
is considered to be a
foreshock
of the
2004 Indian Ocean earthquake
?
...that the
geology of the Grand Canyon area
includes more than 40 identified rock layers?
...that
Bristol Diamonds
were popular souvenirs for visitors to the spa at
Hotwells, Bristol
in the eighteenth and nineteenth centuries?
...that
hoodoos
are tall skinny spires of
rock
that protrude from the bottom of
arid
basins
and
badlands
?
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