Plate Tectonics-5 Elements, 3 Process and 3 Boundaries with Illustrations YouTube Lecture Handouts

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Plate tectonics

• Plate tectonics explains the features and movement of Earth՚s surface in the present and the past.
• It is a scientific theory.
• Describing the large-scale motion of 7 large plates.
• Movements of a larger number of smaller plates of the Earth՚s lithosphere over the last hundreds of millions of years.

Tuzo Wilson

• In 1965, Tuzo Wilson who had been a promoter of the sea floor spreading hypothesis and continental drift from the very beginning.
• Added the concept of transform faults to the model.
• Completing the classes of fault types
• To make the mobility of the plates on the globe work out.

History of Plate Tectonics

• The theory of plate tectonics largely developed since 1967.
• But, the history of ideas extend back considerably longer.

Elements of Plate Tectonics

• Uranium
• Thorium
• Potassium

Process of Plate Tectonics

• Evidence for plate tectonics
  • Lithosphere
  • Asthenosphere
  • Mesosphere

Plate Boundaries

• There are three kinds of plate tectonic boundaries:

Pacific Ring of Fire

✍ Manishika