It would be very rigid, a bit denser, and much
more rugged - much like the crust of Venus. For
this reason, mountains on Venus are steeper than
anything on Earth.
Hydrogen only makes up 0.14% of the earth's crust,
so it is not nearly as common as oxygen (46%) or
silicon (28%). Hydrogen is the 10th most
abundant-by-mass element in the Earth's
Hydrogen is of course a key
component of a substance we living creatures
consider to be very important -- H2O,
water. Besides water, humans (and all other life)
are composed largely of hydrocarbons. Hydrogen
is, therefore, the most common element in living
things on Earth.
(check out for more
Therefore, the first thing that would be very
different if the Earth's crust had no hydrogen (no
water), would be that life (if it existed) would
be chemically completely different than what we
As far as geology is
concerned, water (and therefore hydrogen), is also
very important. Even a tiny amount of water
greatly changes the chemical reactions in the
crust. It makes it much easier for hot rocks to
melt into magma.
water, plate tectonics and volcanoes would behave
differently. Maybe volcanoes would be less common
and less explosive. Also, erosion of rocks and
deposition of sediments usually occurs by water.
So, without hydrogen, the surface of the
earth would not have water to shape it and would
look very different. Think of the world with no
rivers, lakes, oceans, or life.
realized how much I like hydrogen.
Click Here to return to the search form.