Geology Metamorphism Homework Review Practice Test.

Geology Metamorphism Homework Review Practice Test. heat - CORRECT ANSWER What is the most efficient agent of metamorphism? come in contact with a magma body - CORRECT ANSWER Contact metamorphism takes place when rocks _____. pressure - CORRECT ANSWER In addition to temperature, which of the following agents increases with depth in Earth? align perpendicularly to the plane in which the maximum compressive stress is applied - CORRECT ANSWER When fine-grained tabular minerals in a rock at depth are subjected to differential stresses, they _________. replacement or substitution of ions in the pre-existing rock - CORRECT ANSWER At a mid-ocean spreading center, alteration of rocks by chemically active fluids causes metamorphism by __________. low pressure, low temperature, hot watery fluids - CORRECT ANSWER Which factors describe the metamorphic conditions at a mid-ocean ridge? high pressure, low temperature - CORRECT ANSWER Which factors describe the metamorphic conditions in a subduction zone? 200-700 degrees Celcius - CORRECT ANSWER What temperatures do metamorphism take place at? when a preexisting rock is altered through heat and pressure - CORRECT ANSWER How are metamorphic rocks formed?