SRG 1 Geology

Front

What are the three main layers of the Earth?

Back

The three main layers of the Earth are the crust, mantle, and core.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and the upper part of the mantle.

Front

What is the asthenosphere?

Back

The asthenosphere is the semi-fluid layer of the mantle located beneath the lithosphere, allowing for the movement of tectonic plates.

Front

What is convection in geology?

Back

Convection in geology refers to the movement of molten rock in the mantle due to heat from the core, which drives plate tectonics.

Front

What is a divergent boundary?

Back

A divergent boundary is where two tectonic plates move away from each other, often creating new crust as magma rises to the surface.

Front

What is a convergent boundary?

Back

A convergent boundary is where two tectonic plates collide, leading to one plate being forced beneath the other, often creating mountains or volcanic activity.

Front

What is a transform boundary?

Back

A transform boundary is where two tectonic plates slide past each other horizontally, causing earthquakes.

Front

What is the significance of the NW U.S. in plate tectonics?

Back

The NW U.S. is significant for its convergent boundaries, where the Pacific Plate meets the North American Plate, leading to mountain formation and seismic activity.

Front

How do tectonic plates move?

Back

Tectonic plates move due to convection currents in the mantle, driven by heat from the Earth's core.

Front

What happens to continents over millions of years?

Back

Over millions of years, continents can drift apart or collide due to the movement of tectonic plates.