ES Flashcard #2 Review (21-22)

Front

What occurs at a transform boundary?

Back

Earthquakes occur at transform boundaries where two tectonic plates slide past each other.

Front

How can you determine the oldest island in a chain of islands?

Back

You can determine the oldest island by considering the latitude/longitude of the hot spot, the direction the plate moves, and how far the island is from the hot spot.

Front

What is evidence for plate tectonic theory?

Back

Evidence includes matching fossils across continents, GPS measurements of continental movement, and matching glacier grooves on different continents.

Front

What is happening when convection currents pull apart two plates?

Back

This process creates a ridge as the plates separate.

Front

Who proposed the continental drift theory?

Back

Alfred Wegener proposed the continental drift theory.

Front

What is a tectonic plate?

Back

A tectonic plate is a massive slab of solid rock that makes up the Earth's lithosphere and moves over the semi-fluid asthenosphere.

Front

What is a hot spot?

Back

A hot spot is a location on the Earth's surface that has experienced active volcanism for a long period, often resulting in a chain of islands.

Front

What is the difference between convergent and divergent boundaries?

Back

Convergent boundaries occur where plates collide, while divergent boundaries occur where plates move apart.

Front

What is subduction?

Back

Subduction is the process where one tectonic plate moves under another and sinks into the mantle.

Front

What are seismic waves?

Back

Seismic waves are waves of energy that travel through the Earth, often as a result of earthquakes.