PLATE
TECTONICS
Plate tectonics:
It is from the Late Latin tectonicus,
from the Greek: τεκτονικός
"pertaining to building; it is a
scienti...
LITHOSPHERE
The lithosphere (from the
Greek words [lithos] for
"rocky" + [sphaira] for
"sphere") is the rigid
outermost sh...
Earth's lithosphere
It comprises the
crust and the
portion of the upper
mantle that
behaves elastically
on time scales of
...
Types of Plate Boundaries
Transform Boundaries
Also known as
Conservative occur where
plates slide or, perhaps
more accurately, grind past
each othe...
Divergent Boundaries
Constructive occur where two
plates slide apart from each other.
Mid-ocean ridges (e.g.,
Mid-Atlantic...
Convergent Boundaries
(Destructive or active margins
occur where two plates slide
towards each other commonly
forming eith...
Three types of Boundaries
PREPARE FOR A
QUIZ!!!
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Ppt. presentation-assign

  1. 1. PLATE TECTONICS
  2. 2. Plate tectonics: It is from the Late Latin tectonicus, from the Greek: τεκτονικός "pertaining to building; it is a scientific theory which describes the large scale motions of Earth's lithosphere.
  3. 3. LITHOSPHERE The lithosphere (from the Greek words [lithos] for "rocky" + [sphaira] for "sphere") is the rigid outermost shell of a rocky planet.
  4. 4. Earth's lithosphere It comprises the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater.
  5. 5. Types of Plate Boundaries
  6. 6. Transform Boundaries Also known as Conservative occur where plates slide or, perhaps more accurately, grind past each other along transform faults.
  7. 7. Divergent Boundaries Constructive occur where two plates slide apart from each other. Mid-ocean ridges (e.g., Mid-Atlantic Ridge) and active zones of rifting (such as Africa's Great Rift Valley) are both examples of divergent boundaries.
  8. 8. Convergent Boundaries (Destructive or active margins occur where two plates slide towards each other commonly forming either a subduction zone (if one plate moves underneath the other) or a continental collision (if the two plates contain continental crust).
  9. 9. Three types of Boundaries
  10. 10. PREPARE FOR A QUIZ!!!

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