1411103
Descripción
Mapa Mental por graciehoffs, actualizado hace más de 1 año
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Creado por graciehoffs
hace más de 11 años
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Pangea
- The earth is 6400
million years old
- Over 200 million years ago
all the continents were
joined to form a super
continent
- What evidence?
- Identical rocks and fossils
dating from this time have
been found in west africa
and south america
- The eastern coast of
South America fits almost
perfectly with the western
coast of Africa.
- The
contunuity
of
mountain
chains
- A polar ice cap covered the
southern end of Pangaea,
and glacial deposits of the
same age and structure are
found throughout the
southern continents.
- The current
movements
of the
continents
today
- Identical rocks and fossils
dating from this time have
been found in west africa
and south america
- These were
moved by the
continents that
are still moving
our continents
today
- The lithosphere is split
into 15 large plates and
20 small plates
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