Ch. 8

25 July 2022
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question
thicken the crust and cause uplift
thicken the crust and cause uplift
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If you had this type of deformation of a region, it would:
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thin the crust and cause subsidence
thin the crust and cause subsidence
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If you had this type of deformation of a region, it would:
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thicken the crust and cause uplift
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If you had this type of deformation of a region, it would
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A, a permeable sandstone
A, a permeable sandstone
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If it contained oil, which layer would most likely produce an oil seep on the surface?
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C, a permeable sandstone
C, a permeable sandstone
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Which site would most likely contain oil in the subsurface?
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1
1
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Which of the numbered features on this figure is a continental shelf?
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2
2
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Which of the numbered features on this figure is a continental slope?
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1
1
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Which of these numbered features is on the continental shelf?
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2
2
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Which of these numbered features is on the continental slope?
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3
3
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Which of these numbered features is an atoll?
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a volcanic island forms and subsides
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What is a popular model for the formation of an atoll?
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Sea level rose
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Why did the Great Barrier Reef in Australia grow upward, forming the largest organic structure on Earth?
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the thickness of continental crust
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Regional elevations on land are primarily controlled by
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heating the crust and mantle
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Regional elevation can be increased by
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all of these
all of these
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Regional elevation can be decreased by
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less dense continental crust
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What could cause a region to be higher in elevation than an average part of a continent?
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all of these
all of these
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Regional elevation can be increased by
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all of these
all of these
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Which of the following occurs when mountain belts are eroded?
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A erosional remnant
A erosional remnant
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The image shows Stone Mountain in Georgia, a feature made of granite that was uncovered by erosion that removed the overlying and flanking softer rocks. What is the best name for this feature?
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an almost doubling of the thickness of continental crust
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What is the main cause of uplift during a continental collision?
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(a wedge-shaped zone) of faults, folds, and metamorphosed rocks formed along the upper parts of a subduction zone as material is scraped off
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An accretionary prism is
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enters a subduction zone, where it is scraped off the subducting plate and added to the continent
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For a terrane to become attached to a continent, it typically
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parts of the continent have been added by the accretion of tectonic terranes
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What is the main reason why the age of oldest rocks can vary from one part of a continent to another?
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turbidity currents
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Submarine canyons in the continental slope are eroded by:
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evaporation of water, such as in restricted seaways
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How do most salt deposits form?
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domes
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Salt is less dense and weaker than other types of rocks so it flows upward to form
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carbonate rocks and accumulations
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Which of the following is a consistent feature of reefs and atolls?
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isostasy
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The principle that regional elevations adjust to the types and thicknesses of rocks at depth is known as
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1, Andes of South America
1, Andes of South America
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Which of these regions is high because of subduction of an oceanic plate?
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2, East Africa
2, East Africa
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Which of these regions is high because of mantle upwelling near a continental rift?
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3, Tibet
3, Tibet
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Which of these regions is high because of a continental collision?
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passive margin
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Which of the following is NOT a setting in which regional mountain belts form?
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isostatic rebound
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Uplifting caused by the removal of weight on top of the crust, as when an ice sheet melts away or when erosion strips material off the top of a thick crustal root of a mountain, is called
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may be high in elevation but is not accompanied by a regional increase in crustal thickness
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A local mountain created by volcanism
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accertion
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The process of adding a terrane to another landmass is called
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the Canadian Shield
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What part of North America contains the oldest exposed rocks?
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Tehys
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Which of the following is NOT the name of a supercontinent?
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very fine-grained sedimentary rocks with low permeability
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Which of the following rock types is most likely to host shale gas or shale oil?
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both of these
both of these
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Which of the following technologieshelped shale gas become an important resource?