Exam 15: Metamorphism, Metamorphic Rocks, and Hydrothermal Rocks

Schist forms at higher temperatures and pressure than slate.

Hydrothermal processes are not important along submarine mid-ocean ridges because of the cooling effect of seawater.

Contact metamorphism occurs adjacent to a pluton when a body of magma intrudes relatively cool country rock.

___ is a metamorphic rock with distinct light and dark layers that formed at high temperatures and pressures.

_______ metamorphism occurs adjacent to a pluton when a body of magma intrudes a relatively cool country rock.

Because of the ease with which it can be split into thin flat sheets ____ this metamorphic rock is used for making chalkboard,pool tables,and roofs.

If limestone is metamorphosed at relatively low temperatures and pressures it recrystallizes into marble.

Shearing causes parts of a body to move or slide relative to one another across a plane.

In high temperature and pressure metamorphism,if the parent rock is _____ and the dominant mineral is amphibole then the rock is amphibolite.

_____ is metamorphism coupled with the introduction of ions (charged atoms)from an external source.

When hot solutions emerge from the ocean floor,submarine hot springs called ________ form.

Hot water (or vapor)is the most important fluid involved in metamorphic processes.

___ metamorphism is the term used for the process in which rocks are altered by hot water.

The deeper a rock is below the Earth's surface ______.

Metamorphic rocks owe their texture mostly to temperature.

______ stress is a type of differential stress.

___ metamorphism takes place at considerable depth underground (generally greater than 5 km).

When a rock is buried to increasing depth it is subject to increasingly greater temperature and pressure and will undergo _____.

Metamorphic rocks are prevalent __.

The original rocks must have been brittle in order for them to bend and mold under stress.