Plate Tectonics
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Transcript of Plate Tectonics
UNIT 1
PLATE TECTONICS
COMPOSITIONAL AND PHISICAL LAYERS
DENSITY AND TEMPERATURE VARIATION IN DEPTHTe
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TYPES OF SEISMIC WAVES
SEISMOMETER AND SEISMOGRAM
EXPLORING THE INTERIOR WITH SEISMIC WAVES
SEISMIC WAVES VARIATION IN DEPTH
PANGEA
CONTINENTS POSITION THROUGH EARTH’S HISTORY
GEOLOGICAL EVIDENCES
Same rocks and structures on each side of the Atlantic ocean
Continents fit together along the continental shelves
PALEOCLIMATIC EVIDENCE
Glacial moraines in tropical regions
Wegener’s explanation
PALEOLITHIC EVIDENCES
CONTINENTS EVOLUTION
SEISMIC AND VOLCANIC BELTS
PLATE TECTONICS
PLATE BOUNDARIES FEATURES
TYPES OF PLATES BOUNDARIES
PLATES MOVEMENTS
Divergent boundaries
Convergent boundaries
Transform boundaries
TYPES OF SUBDUCTION BOUNDARIES
OCEAN FLOOR LANDFORMS
OCEAN FLOOR COMPOSITION
SEA FLOOR SPREADING
PLATE MOVEMENTS EXPLANATION
CONVENCTION CURRENTS