West Los Angeles College » Geology » Geology 001 - Physical Geology » Summer 2021

Question #1

Heat promotes recrystallization by __________.

A. separating ultramafic elements from mafic ones

B. stripping away valence electrons

C. adding catalysts to reactions

D. increasing atomic vibration

E. causing minerals to melt

Question #2

Which of these has the largest mica grains?

A. schist

B. marble

C. shale

D. phyllite

E. slate

Question #3

Metamorphic index minerals are an indicator of _____.

A. how long the rocks have been exposed on the surface

B. the specific pressures and temperatures experienced by the rock

C. the amount of time that the rock has been metamorphosed

E. the specific depth inside the earth.

F. the age of the metamorphism

Question #4

Index minerals are ______.

A. Any minerals that grow in metamorphic rocks.

B. Minerals that help organize metamorphic rocks.

C. Minerals that only form at certain temperatures/pressures.

D. Minerals that grow in magma and therefore will be found in foliated rocks.

E. Minerals that form at high pressure.

Question #5

What is the protolith of marble?

A. Quartzite

B. Limestone

C. Shale

D. Mudstone

E. Sandstone