2. STRUCTURE INTERNAL OF THE EARTH
•The model geochemical
considered to structure
internal of the earth divided in
three layers, less than higher
depth: crust, mantle and
nucleus.
3. CRUST
•Analyzing the velocity of the seismic
waves by this layer is has observed
that its behavior not the same in zone
continental and oceanic, by it that
considered two type of crust: oceanic
and continental.
4. MANTLE
•Is the zone middle of the earth that is
extending between the calls
discontinuity of Mohorovici and
discontinuity Guttenberg.
5. NUCLEUS
•Is the layer more internal of the
planet that is extending from the
discontinuity Guttenberg unto the
center same of the earth. Is find
divided in two zone, the nucleus
internal and external.
6. LITHOSPHERE
•it is formed by the crust and a
small part of mantle top, that
may achieve the seventy-five
kilometers of depth.
7. THE ASTHENOSPHERE
•is the asthenosphere or upper mantle
zone immediately below the
lithosphere, roughly between 250 and
660 kilometers deep. The
asthenosphere is composed of silicate
ductile materials, solid.
