Metamorphic Rock

Metamorphic Rocks

Metamorphic rock

rocks change as heat and pressure increase.

Multiple Choice

Which mineral is responsible for the strong foliation in a schist?

• granite

• Mica

• ryolite

• Marble

Multiple Choice

Which of the following metamorphic rocks can not form from a shale?

• hornfels

• schist

• slate

• marble

Multiple Choice

Which of the following processes will cause metamorphism?

• a change in the chemical environment

• an increase in temperature

• an increase in pressure

• all of these

Multiple Choice

What is the relationship between metamorphic foliation and sedimentary bedding?

• sedimentary bedding is required in order for a rock to develop metamorphic foliation

• sedimentary bedding and metamorphic foliation are two terms for the same phenomenon

• sedimentary bedding and metamorphic foliation are generally parallel

• There is no regular relationship between sedimentary bedding and metamorphic foliation

Multiple Choice

Which of the following sets is arranged in order of increasing metamorphic grade?

• shale - slate - phyllite

• phyllite - gneiss - schist

• phyllite - slate - schist

• schist - shale - gneiss

Multiple Choice

What occurs when magma comes into contact with existing rock and its thermal energy and gases interact with the surrounding rock to make a new metamorphic rock?

• contact metamorphism

• regional metamorphism

• cementation

Contact Metamorphism

Multiple Choice

Formation of metamorphic rock bodies that are hundreds of square kilometers in size...

• contact metamorphism

• regional metamorphism

• compaction

Regional Metamorphism

Multiple Choice

What is the process that affects structure or composition of rocks in the solid state; occurs due to changes in heat, pressure, or the addition of chemical fluids?

• extrusive rock

• cementation

• metamorphism

Metamorphism

Multiple Choice

What has mineral grains with a random interlocking texture?

• clastic rock

• non-foliated rock

• texture

Non-foliated Rock

Multiple Choice

What type of rock contains parallel layers of flat and elongated minerals?

• rock cycle

• foliated rock

• regional metamorphism

Foliated Rock

Multiple Choice

Name the process that creates permanent change in rock shape caused by bending or folding...

• plastic deformation

• compaction

• cementation

Plastic Deformation

Multiple Choice

In regional metamorphism the source of increased temperature and pressure is _________ .

• a local intrusive heat source

• the increase in temperature with increasing depth of burial

• impact metamorphism

• due to increased rate of radioactive decay

Multiple Choice

A Geologist suffers from a black eye after yelling "Gneiss!!!" to a classmate, who happened to be sunning on a large boulder. The geologist really meant to tell the classmate that the rock they were laying on _______________

• would fizz with the application of acid

• is commonly used in billiard table construction

• is a high-grade, silicate-rich, mineralogically banded metamorphic rock

• demonstrates schistosity

Multiple Choice

A combination of shallow earthquakes, tension, and contact metamorphism characterizes ___________

• transform fault margins

• spreading centers

• continent/continent margins

• subduction type margins

Multiple Choice

In contact metamorphism there is a ____________

• frictional heat source

• local heat source

• regional heat source

• no heat source

Multiple Choice

Marble is a metamorphic rock that forms from a ___________ parent

• shale

• granite

• limestone

• sandstone

Multiple Choice

The pressure and heat that drive metamorphism result from which three forces?

• The weight of the overlying rocks, solar heating, and nuclear fusion

• Horizontal pressures developed as rocks deform, bonding, heat released during crystallization

• Internal heat of the Earth, nuclear fission, heat released during chemical weathering

• The internal heat of the Earth, the weight of overlying rocks, and horizontal pressures developed as rocks become deformed

Multiple Choice

Which type of pressure will result in the alignment of metamorphic minerals?

• contact pressure

• direct pressure

• chemical pressure

• confining pressure

Multiple Choice

What type of metamorphism is caused by high temperature and high pressure imposed over a large volume of crust?

• regional

• burial

• contact

• cataclastic

Multiple Choice

What is the most prominent textural feature of regional metamorphic rocks?

• foliation

• banding

• cleavage

• bedding