Plate Boundaries
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