Florida International University
Department of Earth Sciences
GLY 1010: Introduction to Earth Science
Practice Quiz (Not for credit)






1. In a non-volcanic orogenic belt, the average temperature increase per kilometer of depth is about ________.
A.80°C/km
B.60°C/km
C.40°C/km
D.20°C/km


2. What type of metamorphism is caused by high temperature and high pressure imposed over a large volume of crust?
A.burial
B.contact
C.regional
D.cataclastic


3. What type of metamorphism is caused by igneous intrusions?
A.burial
B.contact
C.regional
D.deformation


4. Which of the following is closely related to diagenesis?
A.hydrothermal metamorphism
B.burial metamorphism
C.contact metamorphism
D.deformation metamorphism


5. Hydrothermal metamorphism is very common in which of the following settings?
A.continental collision zones
B.transform faults
C.mid-ocean ridges
D.intraplate settings


6. The parallel alignment of mica in a metamorphic rock is an example of ______.
A.porphyroblasts
B.bedding
C.metasomatism
D.foliation


7. Light-colored rocks with coarse bands of segregated light and dark minerals are called ______.
A.quartzites
B.schists
C.gneisses
D.slates


8. Which of the following sequences describes the metamorphic changes in a shale with increasing metamorphic grade?
A.schist ® gneiss ® slate
B.gneiss ® slate ® schist
C.slate ® schist ® gneiss
D.gneiss ® schist ® slate


9. Which of the following metamorphic rocks is always foliated?
A.marble
B.quartzite
C.hornfels
D.schist


10. A non-foliated contact metamorphic rock is called a ______.
A.phyllite
B.schist
C.hornfels
D.gneiss


11. Which of the following metamorphic rocks cannot form from a shale?
A.schist
B.marble
C.hornfels
D.slate


12. How can a geologist recognize a fault zone that formed deep within the crust?
A.by the presence of mylonites
B.by the presence of porphyroblasts
C.by the presence of granulites
D.by the presence of shales


13. What is a porphyroblast?
A.a strongly foliated metamorphic rock
B.a relatively large metamorphic mineral
C.an igneous rock with two distinct crystal sizes
D.a common type of copper ore deposit


14.
R-1 Ref 8-1

Isograd A is the __________ isograd.
A.amphibole
B.muscovite
C.biotite
D.garnet



15.
R-1 Ref 8-1

Zone D should contain which of the following minerals?
A.amphibole
B.sillimanite
C.calcite
D.kyanite



16. Which of the following represents the highest grade of metamorphosed mafic volcanic rocks?
A.greenschist
B.blueschist
C.amphibolite
D.pyroxene granulite


17. What metamorphic facies occurs at temperatures of 400°C and pressures of 6 kilobars?
A.greenschist
B.hornfels
C.granulite
D.zeolite


18.
R-2 Ref 8-2

Which pressure-temperature regime represents the eclogite facies?
A.area A
B.area C
C.area E
D.area G



19. A contact aureole is _________.
A.the region where plates meet at converging plate margins
B.the region between metamorphic and sedimentary rocks
C.the imaginary line along which one metamorphic isograd changes to another
D.the region of metamorphically altered rock around an igneous intrusion


20. Which of the following metamorphic rocks forms in the subduction zone?
A.amphibolite
B.blueschist
C.hornfels
D.granulite



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