Reforming the Earth Plate Tectonics Boundaries Earthquakes Volcanoes Random

Solid, outer layer consisting of the crust and upper mantle Answer

Lithosphere Home

Answer This type of crust has a low density made of silica rich rock

Home Continental crust

Layer of plastic rock below the lithosphere Answer

Asthenosphere Home

Dense crust made of iron and magnesium Answer

Oceanic crust Home

What forms when oceanic lithosphere subducts beneath oceanic lithosphere? Answer

An Island Arc Home

What is an undersea mountain range formed at a divergent boundary? Answer

Home Mid-ocean Ridge

What kind of boundary would from a mountain range? Answer

Convergent Home

Boundary where 2 plates are moving away from each other Answer

Divergent Home

Where are most divergent boundaries found? Answer

On the ocean floor Home

The San Andreas Fault is an example of this type of boundary Answer

Home. Transform

What are 2 types of surface waves? Answer

Love and Rayleigh Home

Answer What is an area where no direct seismic waves can Be detected?

Home Shadow Zone

What scale do we use to describe the intensity of an earthquake? Answer

Modified Mercalli Home

What is it called when rocks on each side of a fault suddenly return to their undeformed shape? Answer

Elastic Rebound Home

What are the most damaging seismic waves? Answer

Surface Waves Home

Answer When this molten rock solidifies beneath Earth’s surface, intrusive igneous rock forms

Magma Home

Magma that erupts onto Earth’s surface is called what? Answer

Lava Home

Volcanically active area of Earth’s surface commonly far away from a tectonic plate Answer

Hot Spot Home

This forms in the ocean where one plate is subducted Answer

Home Trench

Answer Magma formed from an underwater volcano is called what?

Pillow Lava Home

What is the supercontinent that formed 300 million years ago? Answer

Pangea Home

What scales do we use to measure the magnitude of an earthquake? Answer

Richter and Moment Magnitude Home

The point on Earth’s surface directly above the focus of an earthquake Answer

Epicenter Home

A large pluton that can cover an area as big as 100 km 2 is a _________ Answer

Batholith Home

Devils Tower was caused by the cooling of magma within Earth’s crust until erosion revealed it. What is this structure called? Answer

A Pluton Home