Plate Boundaries

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the location where one tectonic plate comes in contact with another

plate boundary

a deep valley that forms when two plates move apart

rift valley

an area along the edge of the Pacific ocean where a large number of Earthquakes and volcanic eruptions occur

ring of fire

the process that occurs at mid-ocean ridges where new oceanic crust is formed

seafloor spreading

the process that occurs when one plate moves beneath another plate because it is more dense

subduction

plate boundary where two plates slide past each other

transform

the Alpine fault in New Zealand is located on the boundary between the Indo-Australian and Pacific plates. Some of Earth's most violent earthquakes occur along this fault.

transform

the type of plate boundary where two plates slide past each other

transform

the collision between the Indian plate and the Eurasian plate caused the formation of the Himalayan mountain range. Which type of convergent boundary is this?

continent-continent

the type of plate boundary where two plates divide or separate

divergent

the sudden and violent shaking of the ground usually caused by the movement within earth's crust

earthquake

true or false: continental crust subducts below oceanic crust because continental crust is more dense than oceanic crust

false

true or false: earthquakes and volcanic eruptions generally occur near the center of the plates

false

true or false: the African Great Rift valley is an example of a feature formed at a transform boundary.

false

true or false: the earth is getting larger over time due to seafloor spreading

false

true or false: the earth's surface remains unchanged regardless of the movement of the plates

false

a fracture or break in the rocks where two plates slide past each other

fault

what evidence is there for plate tectonics

the geologic events that occur at plate boundaries such as earthquakes and volcanic eruptions

true or false: the Atlantic ocean is slowly widening due the divergent boundary that is located on the ocean floor

true

true or false: the plates carry the earth's continents, but not its oceans

true

true or false: there are two main types of crust that cover earth's surface- continental crust and oceanic crust

true

true or false: new crust is constantly being formed on Earth's surface

true

boundary where two plates collide

convergent

the Aleutian islands are formed from the subduction of the Pacific Plate beneath the North American Plate as the two plates collide

convergent

the Andes mountain range formed as a result of the subduction of the Nazca plate and Antarctica plate beneath the South American Plate as the two plates collide

convergent

the Himalayan mountain range formed as a result of the collision between the Indian Plate and Eurasian Plate

convergent

the type of plate boundary where two plates collide

convergent

what boundary is characterized by the creation of volcanic mountain ranges

convergent boundaries

a plate boundary where two plates separate or divide.

divergent

the East African rift valley formed where the Nubian Plate and Somalian Plate are pulling away from the Arabian Plate

divergent

the Mid-Atlantic Ridge was formed due to the separation of tectonic plates and extends for nearly 16,000 kilometers

divergent

a string of islands created from volcanoes along a deep ocean trench

island arc

a long, elevated region on the ocean floor at a divergent boundary

mid-ocean ridge

the landform that is created when two continental plates collide

mountain

The San Andreas Fault is located on the boundary between the North American Plate and the Pacific plate. Many earthquakes occur along this fault

transform

an extremely deep area of the ocean floor where an oceanic plate is moving below a continental plate

trench

true or false: during seafloor spreading, the youngest crust is located closest to the divergent plate boundary.

true

true or false: earthquakes commonly occur at transform boundaries

true

true or false: mountains, volcanoes, and volcanic island arcs can form depending on the type of crust that is involved at convergent plate boundaries

true

the landform that is that is created when a continental plate collides with an oceanic plate

volcano


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