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- When two plates slide against each other
- Dont create or destroy lithosphere
- Most are on the sea-floor
- Create faults
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- Continent-Continent: Rift Valleys
- Ocean-Ocean: Mid-Ocean Ridges
- When two plate divide
- Most are underwater
- Two types
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- When two plates collide
- Intense pressure-formed
- Three types
- Mountain Ranges, Subduction Zones, Trenches, Earthquakes, and Volcanic Activity can form
- Ruptions of molten material
- Magnetic stripes in the rock of the ocean floor
- The ages of the rocks
- The ages of the rocks varied
- The ages of rocks weren't matching with the surface
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- Matching of coastlines
- Matching fossil evidence on different continents
- Matching rock layers
- Geological similarities
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PLATE TECTONICS & PLATE BOUNDARIES
Ratik Reddy Kasarla
Created on November 6, 2020
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Transcript
PLATE TECTONICS & PLATE BOUNDARIES
RATIK KASARLA
PLATE TECHTONIC THEORY
THE PLATE TECTONIC THEORY WAS PROPOSED BY ALFRED WEGENER. IT EXPLAINED HOW EARTH WAS BROKEN UP INTO LARGE SCALE PLATES THAT MOVED AROUND THE EARTHS SURFACE. THIS THEY have ALSO HELPED US BETTER UNDERSTAND ABOUT EARTHQUAKES AND VOLCANOES.
KEY EVIDENCE
Seafloor Spreading
Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. This is how the new crust is formed.
PLATE BOUNDARIES
There are three different types of plate boundaries. Convergent, divergent, and Transform Boundary. They each have different charesteristis which shape the Earth.
Sources
- Matching of coastlines
- Matching fossil evidence on different continents
- Matching rock layers
- Geological similarities
JUST LIKE PUZZLE PIECES!!
EVIDENCE OF SEAFLOOR SPREADING
- Ruptions of molten material
- Magnetic stripes in the rock of the ocean floor
- The ages of the rocks
- The ages of the rocks varied
- The ages of rocks weren't matching with the surface
CONVERGENT
- When two plates collide
- Intense pressure-formed
- Three types
- Mountain Ranges, Subduction Zones, Trenches, Earthquakes, and Volcanic Activity can form
DIVERGENT
- When two plate divide
- Most are underwater
- Two types
- Continent-Continent: Rift Valleys
- Ocean-Ocean: Mid-Ocean Ridges
TRANSFORM
- When two plates slide against each other
- Dont create or destroy lithosphere
- Most are on the sea-floor
- Create faults