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The average composition of rocks comprising a large composite cone or stratovolcano is similar to a(n) ________ magma.

Hornblende and the other amphiboles have what type of silicate structure?

The (geologically) recent volcanic activity in Yellowstone National Park is ________.

Nonmetallic minerals resources are commonly divided into two categories: building materials and ________.

The average composition of rocks comprising a large composite cone or stratovolcano is similar to a(n) ________ magma.

A coarse rock composed of poorly cemented shells and shell fragments is called ________.

Erosional retreat of a(n) ________ leads to enlargement and extension of a wave-cut platform in the inland direction.

Calcite is the main mineral constituent of the sedimentary rock limestone and of the metamorphic rock marble.

In sedimentary rocks, lithification includes ________.

Changes in texture, composition, and other physical properties, after sediments are deposited, are collectively called ________.