Midterm Review

Front

What is the first Cascade Range volcano to erupt since Mt. Lassen, California, in 1915?

Back

Mt. St. Helens

Front

What is the main difference between a conglomerate and a sedimentary breccia?

Back

Breccia clasts are angular; conglomerate clasts are rounded.

Front

What outlines the edges of the lithospheric plates most effectively?

Back

Lines of earthquake epicenters.

Front

What mineral substance do most marine organisms produce?

Back

CaCO3 (Calcium Carbonate)

Front

What type of waves travel through solids only?

Back

S waves.

Front

What type of waves travel through both solids and liquids?

Back

P waves.

Front

What is the primary component of the Earth's lithosphere?

Back

The lithosphere is primarily composed of the crust and the upper mantle.

Front

What is the significance of deep mantle hot spots?

Back

They are locations where plumes of hot mantle material rise, often leading to volcanic activity.

Front

What is the difference between a volcanic eruption and an earthquake?

Back

A volcanic eruption involves the expulsion of magma, while an earthquake is the shaking of the ground due to tectonic movements.

Front

What is sedimentary breccia primarily composed of?

Back

Angular fragments of rock.