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 Plate Tectonics Theory 

 

 

Above: Map Showing Plate Boundaries black

Above: Map Showing Location of Plate Boundaries yellow

( Note: The African Plate is missing from the above map. )

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 Types of Plate Boundaries

A. Divergent (moves apart/spreads apart)

B. Convergent (moves together/collides)

C. Transform (moves in opposite directions, horizontally)

Animations of Plate Boundaries

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Converging Continental Plates:

Mountain Range Formation

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Convergence of an Oceanic and Continental Plate:

Subduction Zone with Trench and Volcano

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Diverging Oceanic Plates:

Mid-Ocean Ridge (shown above and below)

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CONVERGENT PLATES:

Above: Continent - Continent Colllision

Result: Formation of a Mountain Range

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CONVERGENT:

Above: Ocean - Continent Collision

Result: Formation of a Trench and a Volcanic Arc

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CONVERGENT PLATES:

Above: Ocean - Ocean Collision

Result: Formation of a Trench and an Island Arc

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Below: Location of Plate Boundaries in Western USA.

NOTE: The San Andreas Fault is a Transform Fault.

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~ The Pacific Ring of Fire ~

The oceanic crust of the Pacific Plate subducts underneath surrounding continental plates,

causing a circular ring of earthquakes and volcanoes on its borders.

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~ Subduction Zone ~

FYI: Deep Sea Trenches and Volcanoes form at Subduction Zones.

Subduction Zone:

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~ Iceland and the Mid-Atlantic Ridge ~

All Mid-Ocean Ridge Systems are DIVERGENT plate boundries.

Above: Location of Mid-Atlantic Ridge through Iceland

Icelancic Adventure Tour

Iceland and the Mid-Atlantic Ridge

Above: The Ice of Iceland

Above and Below: Iceland featuring exposed Mid-Atlantic Ridge

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~ The Himalayas and Continental Plate Collision ~

The Indian Plate collided with Eurasian Plate...

...approximately 20 million years ago.

Above: Collision of India with Eurasia (Formation of the Himalayas)

Animation: Collision of Indian Subcontintent with Asia

Above: Chomolungma / Mount Everest (29,035 ft. above sea level)

Below: North Face of Mt. Everest featuring the "Yellow Band"

Mount Everest / Everest Map / Hilary and Norgay / Lost on Everest

Himalayan Geology / Highest Fossils / Everest Facts / Panorama

Above: Sir George Everest

Himalayas by Kaiter

World Mountain Ranges

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~ Hydrothermal Sea Vents ~

Above: Hydrothermal Sea Vent

Below: Hydrothermal Sea Vent

Pompeii Worm / Sea Vents / Monsters of the Sea

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~ The Hawaiian Hot Spot ~

 

Hawaiian Hot Spot Animation

Future Hawaiian Vacation Hot Spot...Loihi

Above & Below: Hawaiian Hot Spot

Hot Spot / Hawaiian Hot Spot

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~ Rift Valley Hot Spots ~

NOTE: Some scientists believe that when HOT SPOTS link up,

then RIFT VALLEYS are formed,

causing PLATES to SEPARATE, as with PANGAEA.

The African Great Rift Valley Hot Spot