Term 1 Unit 1: Geologic time and Plate Tectonics

Front

What determines which plate will SUBDUCT?

Back

Density

Front

What type of plate boundary creates the biggest mountains (but not volcanoes)?

Back

Continent-Continent Convergent

Front

According to the law of superposition, which of the following rocks is the oldest?

Back

The schist (5)

Front

In THERMAL CONVECTION, what happens to matter (liquids and gasses) when heat is applied?

Back

Heat will cause matter (liquids and gasses) to rise.

Front

In Plate Tectonics, when two plates are sliding ACROSS from each other, we call it a _______

Back

Transform Boundary

Front

What is the main driving force behind plate tectonics?

Back

Convection currents in the mantle.

Front

What is a divergent boundary?

Back

A plate boundary where two plates move away from each other.

Front

What is a convergent boundary?

Back

A plate boundary where two plates move towards each other.

Front

What is the significance of the Ring of Fire?

Back

It is an area in the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur.

Front

What is subduction?

Back

The process by which one tectonic plate moves under another plate and sinks into the mantle.