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The formation of sheets, or shells, or concentric layers of rock near the surface of the earth, due to weathering or the release of pressure, is called

The formation of sheets, or shells, or concentric layers of rock near the surface of the earth, due to weathering or the release of pressure, is called

Large areas of metamorphic rocks exposed at the surface of the earth represent the “fossil footprints” (or “exposed roots”) of mountain belts. In such places, the metamorphic and igneous rocks provide a strong foundation on which to build, for example, tall buildings. A good example of this occurs in parts of the U.S. that now shows minimal relief and only low mountains, namely

Recognizing that the figure below is a cross-section, the letter ‘A’ points to what?  Note that ocean water covers both sides of the figure.

Recognizing that the figure below is a cross-section, the letter ‘A’ points to what?  Note that ocean water covers both sides of the figure.

Which of the following scientific terms is used commonly, but incorrectly, in everyday language?

Consider the photos below.  What is the correct order for these samples, arranged from fastest-cooling to slowest-cooling?

It’s not unusual to find one or more highly deformed rocks (‘fault rocks’) along fault zones such as the Alpine Fault Zone.  The clay-rich, putty-like material (see photo) found along faults that have formed near the surface of the Earth (including the Alpine Fault Zone), is

It’s not unusual to find one or more highly deformed rocks (‘fault rocks’) along fault zones such as the Alpine Fault Zone.  The clay-rich, putty-like material (see photo) found along faults that have formed near the surface of the Earth (including the Alpine Fault Zone), is

A hornito near Mt. Etna is a place you might want to avoid if you don’t like