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Plate Tectonics & how plates work
• Transform boundary also called a conservative boundary
• Two tectonic plates slide past one another
• Convection currents are parallel to each other
• Force is shearing
TRANSFORM BOUNDARY
• No real landforms are created at a transform boundary– no new crust is formed– no existing crust is lost in
transform boundaries.
• Many earthquakes occur along faults created by transform tectonic boundaries.
Image courtesy of geology.com
• Most of the Earth's transform boundaries of tectonic plates are on the ocean floor along the edges of the mid ocean ridges.
• There are a few transform boundaries on land.
• The most famous of the transform boundaries is the San Andreas Fault zone in Southern California where the Pacific Plate and the North American Plate slowly move past each other at about 6mm pr year
Image courtesy of NASA
Tectonic plateboundaries
Divergent boundaries
EarthquakesVolcanoesMid-ocean ridgesRift valleys
Convergent boundaries
EarthquakesVolcanoesDeep ocean trenchesVolcanic mountain ranges
Ocean/continent
Ocean/oceanEarthquakesVolcanoesDeep ocean trenchesVolcanic Arc Islands
Continent/continentMountain rangesearthquakes
Transform Boundaries Earthquakes
Brace map showing parts of the whole
Spreading boundaryNew land madeSeafloor spreadingrifting
Colliding boundaryLand is destroyedSubductionuplift
Sliding boundaryNo landforms made
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