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Test 3 Questions_Final Exam
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Questions in this quiz (39)
1Without plate tectonics, we would not have _______________.
- Aplates in constant motion
- Bmountain building
- Cformation of new oceans
- DAll of the above are correct.
2According the Wegener, puzzle pieces are to jigsaw puzzle as _____________ is/are to Pangea.
- Acontinental drift
- Bcontinents
- Cfaults
- Dplate tectonics
3Wegener's idea of continental drift was rejected by American geologists because ________________.
- Ahis English was too poor to be understood by them
- Bhe could not conceive of a valid mechanism that would cause continents to shift positions
- Che had relatively little evidence supporting the existence of a supercontinent
- Dthe apparent fit of continental coastlines is blurred when the margins are defined by the edges of continental shelves rather than sea level
4Wegener proposed continental drift after he observed evidence from fossils, glacial deposits, and the fit of the continents that suggested all of the continents were once
- Aaligned north to south along the prime meridian during the Late Cenozoic
- Baligned east to west along the equator during the Late Mesozoic through the Cenozoic
- Ccombined to form a supercontinent (he termed Rodinia) in the Proterozoic
- Dcombined to form a supercontinent (he termed Pangaea) in the Late Proterozoic through the Mesozoic
5Distinctive rock sequences on South America terminate at the Atlantic Ocean but reappear on the continent of
- AAfrica
- BEurope
- CNorth America
- DAustralia
6What element is integral to paleomagnetism?
- Amagnetite
- Biron
- Cquartz
- Dpotassium feldspar
7Marine magnetic anomial belts run parallel to
- Amid-ocean ridges
- Bfracture zones
- Ccontinental ridges
- Dcontinental shelves
8Continental lithosphere
- Ais thicker than oceanic lithosphere
- Bcontains more mafic rocks than oceanic lithosphere
- Cis denser that oceanic lithosphere
- Dcontains no crustal material, consisting solely of lithified upper mantle
9Tectonic plates move at rates that are approximately
- A1 to 5 cm every 1,000 years
- B1 to 15 cm/year
- C1 to 15 m/year
- D10 to 100 m/year
10Why don't earth quakes occur everywhere?
- Aa. Rocks break and slip most often along plate boundaries
- Bb. plate interiors do not accommodate much movement
- Cc. earthquakes epicenters speckle the globe randomly
- Dboth a and b are correct
- Eall of the above are correct
11The youngest sea floor occurs
- Aalong passive margins
- Balong active margins
- Calong mid-ocean ridges
- Drandomly over the entire ocean basin
12At a convergent-plate boundary, two opposed plates
- Amove toward one another
- Bmore away from one another
- Cslide past one another
13Hot spots are caused by
- Afriction due to the lithosphere sliding atop the asthenosphere
- Bunusually dense concentrations of radioactive isotopes at various points in the curst
- Chot plumes of mantle material rises up through cooler, denser surrounding rock
- Dfactors that remain completely unknown at this time
14In 79 C.E., the citizens of Pompeii in the Roman Empire were buried by pyroclastic debris derived from an eruption of
- AMt. Olympus
- BOlympus Mons
- CMt. Vesuvius
- DMt. St. Helens
15Basaltic lavas that solidify at their surface (before ceasing to flow) fracture irregularly, producing a sharp-surfaced lava rock named
- Apahoehoe
- Ba'a'
- Cpumice
- Dhyaloclasite
16Hawaiian-style effusive eruptions are greater threat to property than to human life.
- Atrue
- Bfalse
17Of the three primary forms of subaerial volcanoes, ________________ consist of alternating layers of tephra and solidified lava.
- Astratovolcanoes
- Bcinder cones
- Cshield volcanoes
18Of the three primary forms of subaerial volcanoes, _______________ are sometimes referred to a "composite volcanoes"
- Astratovolcanoes
- Bcinder cones
- Cshield volcanoes
19Mt. Fuji in Japan is an example of a ___________________.
- Astratovolcano
- Bcinder cone
- Cshield volcano
20The hot-spot track associated with the Hawaiian Islands and Emperor Seamounts ____________.
- Ashows that the Pacific Plate has been stationary over the last 30 million years
- Boccurs along a divergent-plate boundary
- Coccurs along a convergent-plate boundary
- Dshows that the Pacific Plate has been moving northwest for the last 30 million years
21Geologists who specifically study earthquakes are called ____________.
- Aseismologists
- Bpaleontologists
- Cvulcanologists
- Dspeleologists
22A primary force opposing motion on all faults is ____________.
- Amagnetic attraction among iron-rich minerals
- Bgravity
- Cfriction
- Dvan der Waals force
23At any point along the fault plane surface of a normal fault, the ____________.
- Ahanging wall moves up realitive to the footwall
- Bfootwall shows no verticle displacemnet compared to the hanging wall
- Changing wall moves down realitive to the footwall
- Dfootwall moves down realitive to the hanging wall
24Body waves include ____________.
- Aboth S- and P-waves
- Bboth L- and R-waves
- Cboth surface and interior waves
- DP-waves only
25Medium- and deep-focus earthquakes occur along ____________.
- Aconvergent-plate boundaries only
- Bdivergent-plate boundaries only
- Ctransform-plate boundaries only
- DAll of the above are correct.
26It is possible for offset along an oblique-slip fault to have both ____________ and ____________ components.
- Anormal; reverse
- Bright-lateral; left-lateral
- Cnormal; srtike-slip
27____________ may help a geologist recognize a fault.
- ADisplacement
- Bdry lakes
- Cconglomerate
- Dall of the above are correct
28A fold shaped like an upside-down bowl is a(n) ____________.
- Aanticline
- Bbasin
- Cdome
- Dsyncline
29A fold shaped like an elongate trough is a(n) ____________.
- Aanticline
- Bbasin
- Cdome
- Dsyncline
30_______________ are considered dip-slip faults.
- Aa. Normal
- Bb. Reverse
- Cc. strike-slip
- Dd. both A and B
31In a plunging anticline, the tip of the “V” points___________________.
- Aaway from the direction of plunge
- Bperpendicular to plunge
- Ctoward the direction of plunge
- Dhas nothing to do with the plunge direction
32In a plunging syncline, the “V” opens in the _________________
- Adirection of plunge
- Baway from the direction of plunge
- Cperpendicular to plunge
- Dit points to the oil
33Rift Valleys will most likely produce __________________ faults.
- AReverse
- BStrike-Slip
- CNormal
- DThrust
34The higher elevations found in Alabama, specifically Mt. Chehaw, are a result of_________
- Anormal faulting
- Breverse faulting
- Cearthquake damage
- Dsea floor spreading
35When older rocks are emplaced on top of younger rocks, this indicates a _____________
- ANormal fault
- BReverse fault
- CStrike-slip fault
- Ddon’t pick this one
36When younger rocks are emplaced on top of older rocks, this indicates a ______________.
- ANormal fault
- BReverse fault
- CStrike-slip fault
- Ddon’t pick this one
37Understanding strain is very important for the design and construction of large objects, strain is the result of stress, please pick the true statement below.
- AStress can be directly observed and measured
- BThere are no unites of measure for strain
- CTensional stress occurs in convergent boundaries
- DStress is the result of strain
38Tsunamis are also known as tidal waves. (not sure of the answer)
- ATrue
- BFalse
39Horsts and Grabens are generally formed in what type of setting?
- AConvergent
- BDivergent
- CStrike-slip
- DOblasion
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- Quiz on Test 3 Questions_Final Exam, created by allison shacklett on 09/12/2016.
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- allison shacklett
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