Earth Science Midterm Review

Front

Compared to the density and composition of the oceanic crust, the continental crust is

Back

less dense and more felsic

Front

The pressure at the interface between Earth's outer core and inner core is inferred to be

Back

3.1 million atmospheres

Front

A seismic station recorded the P-Waves, but no S-Waves from an earthquake because S-Waves were

Back

absorbed by Earth's outer core

Front

How long would it take a P-Wave to travel 2000 km?

Back

4 minutes

Front

Which mantle hot spot is correctly matched to its overlying tectonic plate? Options: Tasman Hot Spot - Pacific Plate, Canary Island Hot Spot - Eurasian Plate, St. Helena Hot Spot - South American Plate, Yellowstone Hot Spot - North American Plate

Back

Yellowstone Hot Spot - North American Plate

Front

Which location is on a major rift valley?

Back

A

Front

What do the +s and -s represent in the diagram above?

Back

+ = normal magnetic polarity - = reverse magnetic polarity

Front

Which diagram shows the relative directions of plate movement at boundary type displayed?

Back

Front

How did the Hawaiian islands form?

Back

an oceanic plate moving over a hot spot

Front

What layer of the Earth are convection currents inferred to be found in? Options: Outer Core, Inner Core, Rigid Mantle, Asthenosphere

Back

Asthenosphere