Partial melting is an important process in the formation of migmatites.

Which of the following statements concerning slate is NOT true?

Tsunamis are caused by sudden displacement of large volumes of seawater.

Tsunamis are caused by sudden displacement of large volumes of seawater.

Detrital sedimentary rocks are classified according to clastic particle size; chemical sedimentary rocks are named according to the most abundant minerals.

In general, cinder cones are much larger than shield volcanoes.

Which of the following describes radioactive decay by beta particle emission?

________ occur at about the time of the first quarter and third quarter phases of the Moon.

Match the rock with the appropriate description.

Continental crust is generally thicker than oceanic crust.