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Geology 102 Final Exam
Part 2
49
Geology
Undergraduate 1
05/02/2010

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Term
What is not part of the definition of a mineral?
A. naturally occurring
B. liquid or solid
C. orderly internal structure
D. inorganic
Definition
B. liquid or solid
Term
Which groups of mineral is considered to be the hardest and softest known mineral in Mohs hardness scale?
A. quartz and diamond
B. calcite and corundum
C. corundum and chalk
D. diamond and talc
Definition
D.    diamond and talc
Term
Which of the following minerals does not have cleavage?
A. halite
B. feldspar
C. quartz
Definition
C.    quartz
Term
Turbidites are sediments associate with turbidity current. These sediments are classified as
A. fining up the sequence
B. fining down the sequence
Definition
A.    fining up the sequence
Term
Which of the following minerals is not a silicate?
A. quartz
B. feldspar
C. gypsum
Definition
C.    gypsum
Term
Which of the following is a physical property of a mineral?
A. hardness
B. cleavage
C. color
D. all of the above
Definition
D.    all of the above
Term
Which of the following minerals is a native element?
A. copper
B. quartz
C. feldspar
Definition
A.    copper
Term
Which of the two pairs of minerals are polymorphs (two minerals with same the composition but different internal structure)?
A. diamond and graphite
B. silver and gold
C. halite and gypsum
Definition
A.    diamond and graphite
Term
Sedimentary rock can be altered to igneous rock by?
A. weathering and erosion
B. melting and freezing
Definition
B. melting and freezing
Term
One of these minerals is not an evaporate mineral.
A. halite
B. gypsum
C. andesite
D. anhydrite
Definition
C.    andesite
Term
Which of the following igneous rocks is the most coarsely crystalline?
A. diorite
B. rhyolite
C. basalt
D. andesite
Definition
A.    diorite
Term
What is the most common igneous rock; it forms the crust beneath the ocean?
A. basalt
B. granite
C. rhyolite
Definition
B.    granite
Term
Which of the following minerals crystallizes at the highest temperature?
A. quartz
B. biotite
C. olivine
Definition
B.    biotite
Term
Which type of rock is most likely to contain fossils?
A. igneous
B sedimentary
C. metamorphic
Definition
B    sedimentary
Term
Which of the following is not an organic sedimentary rock?
A. peat
B. lignite
C. sandstone
Definition
C.    sandstone
Term
Which of the following sedimentary rock has the largest grain size?
A. sandstone
B. conglomerate
C. silt
Definition
B.    conglomerate
Term
Which of the following is not a type of carbonate sedimentary rock?
A. chalk
B. coquina
C. slate
Definition
C.    slate
Term
During fall season, snow falls in the Rocky Mountains. The natural color of this snow is
A. white.
B. black.
C. red.
Definition
A.    white.
Term
Well rounded grain is an indication of what?
A. long distance of transportation
B. short distance of transportation
C. intermediate distance of transportation
Definition
A.    long distance of transportation
Term
Which of the following is not a foliated metamorphic rock?
A. phyllite
B. schist
C. marble
Definition
C.    marble
Term
Which of the following metamorphic rocks has been exposed to the highest temperature and pressure?
A. slate
B. schist
C. gneiss
Definition
C.    gneiss
Term
Which of the following non-foliated metamorphic rock forms by metamorphism of basalt?
A. greenstone
B. quartzite
Definition
A.    greenstone
Term
Which type of metamorphism occurs as rock is heated by being adjacent to lava or magma?
A. regional metamorphism
B. contact metamorphism
Definition
B.    contact metamorphism
Term
Which metamorphic index mineral indicates the highest degree of metamorphism?
A. chlorite
B. staurolite
C. sillimante
Definition
C.    sillimante
Term
Which igneous rock has the largest crystals?
A. intrusive igneous rock
B. extrusive igneous rock
Definition
B.    extrusive igneous rock
Term
Which magma has the lowest viscosity (most water like) when it flows?
A. high silica
B. low silica
Definition
B.    low silica
Term
Peridotite is ultramafic intrusive igneous rock. Which extrusive igneous rock has the same composition?
A. rhyolite
B. andesite
C. such a rock does not exist
Definition
C.    such a rock does not exist
Term
What element must be in a mineral to indicate the orientation of Earth’s magnetic field?
A. sodium
B. iron
C. oxygen
Definition
B.    iron
Term
Greenstone is derived from ___________
A. low-grade metamorphism
B. high-grade metamorphism
C. intermediate-grade metamorphism
Definition
A.    low-grade metamorphism
Term
Schist is derived from the regional metamorphism of ________
A. sandstone
B. shale
C. limestone
Definition
B.    shale
Term
In a porphyritic igneous rock, the crystals are
A. all approximately the same sizes
B. too distinctly different sizes
Definition
B.    too distinctly different sizes
Term
Which of the following is not a sedimentary rock?
A. shale
B. breccia
C. marble
Definition
C.    marble
Term
The magnesium that replaces calcium when limestones are altered to dolostone (dolomite) comes from
A. seawater.
B. fresh water.
Definition
A.    seawater.
Term
In general, the farther a sediment is transported from its source is contains
A. less quartz and becomes less rounded.
B. more feldspar and becomes less rounded.
C. contains more quartz and becomes more rounded.
D. contains less quartz and becomes more rounded.
Definition
D.    contains less quartz and becomes more rounded.
Term
A coarse-grained sediment is generally a product of a
A. high-energy depositional environment.
B. low-energy depositional environment.
Definition
B.    low-energy depositional environment.
Term
Stromatolites most commonly form in ____________ depositional environments
A. fluvial
B. tidal flat
C. abyssal plain
Definition
B.    tidal flat
Term
Which of the following is not a marine depositional environment?
A. continental slope
B. continental rise
C. abyssal plain
D. alluvial fan
Definition
D.    alluvial fan
Term
Which of the following series of foliated metamorphic rocks is ordered from low-grade metamorphism to high-grade metamorphism?
A. gneiss, slate, schist, phyllite
B. slate, schist, phyllite, gneiss
C. slate, phyllite, gneiss, schist
D. slate, phyllite, schist, gneiss
Definition
D.    slate, phyllite, schist, gneiss
Term
Which is the most common mineral in sandstone (because it is extremely resistant to weathering at near-surface conditions)?
A. feldspar
B. quartz
C. olivine
D. pyroxene
Definition
B.    quartz
Term
_______ are intrusive igneous rocks that are parallel to the grain of country rocks.
A. lava
B. sills
C. dykes
Definition
B.    sills
Term
Which igneous rock pairs are intrusive and extrusive rocks of similar chemistry and mineralogy?
A. basalt and granite
B. basalt and rhyolite
C. rhyolite and granite
D. quartz and feldspar
Definition
C.    rhyolite and granite
Term
______ are intrusive igneous rock structures that crosscut the country rock.
A. lava
B. sills
C. dykes
Definition
C.    dykes
Term
The fine extrusive equivalent of granite is
A. diorite.
B. basalt.
C. andesite.
Definition
C.    andesite.
Term
One of these sub-environment of deposition is not considered as part of transitional environment.
A. lake
B. delta
C. beach
D. estuaries
Definition
A.    lake
Term
What two major divisions of the continents constitute the craton?
A. shield and platform
B. orogenic belt and shield
C. orogenic belt and platform
Definition
A.    shield and platform
Term
In a lagoon and barrier island system the
A. lagoon is seaward of the barrier island.
B. lagoon is landward of the barrier island.
Definition
B.    lagoon is landward of the barrier island.
Term
Glacial sediment deposits (till) are generally
A. well sorted.
B. poorly sorted.
Definition
B.    poorly sorted.
Term
Which of these two mechanisms of metamorphism generally affects the larger volume of rock?
A. contact metamorphism
B. regional metamorphism
Definition
B.    regional metamorphism
Term
The answer to this question is “A.”
Definition
A
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