Author: Anonymous

________ is thought to form by partial melting and in situ crystallization of the melted portion.

The mantle is composed mainly of metallic iron with small amounts of magnesium silicate minerals.

Repeated eruptions of relatively fluid lava from fissures can eventually cause an area to be covered by flood basalts.

The crust, mantle, and outer core are solid.

________ destroyed the city of St. Pierre, Martinique in 1902.

Muscovite, biotite, and chlorite are common minerals found in phyllites and schists.

Aa flows are generally thinner and have smoother surfaces than pahoehoe flows.

Which statement concerning sedimentary rocks is NOT true?

Parallel, straight, linear imperfections visible on the cleavage surfaces of plagioclase feldspar are called ________.

Longshore sand transport and longshore currents depend on waves impinging ________ to a shoreline.