Earth’s crust is made up of the continents and the ocean basins. The ocean basins contain many extraordinary geological features. To know more about the features of Earth click here.

1. The Earth’s crust is made
up of the continents and
the ocean basins.
Oceanic crust, which
consists of basaltic rock,
is thinner and denser
than continental crust,
which contains granitic
rock; because of this,
the continents rise
above the oceans.

3. A continental margin
is a part of ocean
basin that is adjacent
to continent. It
includes the
continental shelf, a
sloping section of
material lies on top of
continental crust
If seawater recedes
and continental
crust is exposed,
some of the
continental shelf
may become part of
a coastal plain.
Continental
Margin

4. Deep Ocean Basins
Eventually, the continental shelf or continental rise
leads to a deep ocean basin. Comprising 30 percent of
the Earth’s surface, the deep ocean basins contain
flat abyssal plains, deep ocean trenches and
submerged volcanoes known as seamounts.

5. Abyssal Plains
Abyssal plains are about 2.5 miles (4 kilometers)
below sea level. They are made of volcanic rock that is
covered with very thick layers of sediment. Over time,
this sediment has spread out and flattened, making
abyssal plains the flattest places on earth.

6. To Know More About Earth
Visit
http://www.earthfacts.com/