Portal:Earth sciences/DYK/9
Louis Agassiz
...that
Louis Agassiz
(pictured)
was the first to scientifically propose that the Earth had been subject to a past
ice age
?
...that
Diorite
is a grey to dark grey intermediate
intrusive
igneous rock
composed principally of plagioclase
feldspar
(typically
andesine
),
hornblende
, and/or
pyroxene
?
...that
Black smokers
are a type of
hydrothermal vent
found on the ocean floor?
...that the
troposphere
is the lowermost portion of
Earth's atmosphere
and the one in which most
weather
phenomena occur?
...that
tuff
is a type of
rock
consisting of consolidated volcanic
ash
ejected from vents during a volcanic eruption?
...that
Io
is the most volcanically active body in the
Solar System
, due to the
tides
exerted upon the
satellite
by
Jupiter
?
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