Physical Geology Chapter 2 Quiz

There is a divergent plate boundary within the region of east Africa.

True
False

True
The subduction of cold, dense oceanic lithosphere into the mantle facilitates the movement of plates by slab pull.

True
False

True
A rock will preserve its remnant magnetism as long as it is not heated above the Curie point.

True
False

True
Large, high mountain ranges without volcanoes are built at which type of plate boundary?

a. divergent: oceanic-oceanic
b. convergent: oceanic-continental
c. convergent: continental-continental
d. transform: continental-continental
e. divergent: oceanic-oceanic AND convergent: continental-continental

convergent: continental-continental
At divergent plate boundaries, the operating forces are:

a. normal.
b. compressional.
c. tensional.
d. thrusting.
e. lateral shearing.

tensional.
At a mid-oceanic ridge spreading center:

a. the plates are moving away from each other.
b. the plates are moving toward each other.
c. one plate is being subducted beneath another.
d. both plates are being subducted.
e. the plates are moving past each other. (NO)

the plates are moving away from each other.
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Changes in the Earth’s magnetic field have occurred throughout geologic time, and these are called magnetic reversals.

True
False

True
Aseismic ridges have that name because they do not have earthquakes.

True
False

True
Paleomagnetic studies show that the ocean basins are older than the continents.

True
False

False
Around most of the Atlantic the continental slope descends into an oceanic trench but around the Pacific the continental slope merges with a more gently sloping continental rise.

True
False

False
Hot spots move with continental plates.

True
False

False
Fossil evidence of the links among Gondwana continents was compelling because the species should have:

a. been found over wide regions if they were able to migrate among continents.
b. exhibited evidence of tolerance for climatic extremes.
c. shown a mechanism for widespread dispersal.
d. been found over wide regions and shown a mechanism for widespread dispersal.
e. been found over wide regions, exhibited evidence of tolerance for climatic extremes and shown a mechanism for widespread dispersal.

been found over wide regions, exhibited evidence of tolerance for climatic extremes and shown a mechanism for widespread dispersal.
The study of paleomagnetism is possible because:

a. the magnetic minerals in rocks create the Earth’s magnetic field. (no)
b. most rocks contain no magnetic minerals.
c. the magnetic minerals in rocks disrupt the Earth’s magnetic field. (no)
d. the magnetic minerals in a cooling lava point toward the north magnetic pole. (maybe)
e. none of these (no)

the magnetic minerals in a cooling lava point toward the north magnetic pole.
Studies of paleomagnetism document:

a. changes in the Earth’s gravitational field.
b. how the inner/outer core boundary has evolved.
c. how the mineral magnetite has varied through time.
d. how the Earth’s magnetic poles have varied through time.
e. none of these

how the Earth’s magnetic poles have varied through time.
The differing paleomagnetic records for each continent showed:

a. each continent had its own magnetic pole during successive geological periods.
b. that the magnetic poles for each continent had moved over geological time.
c. that the magnetic poles have remained in one location and each of the continents has moved.
d. that both the poles and the continents have moved over time.
e. none of these

that the magnetic poles have remained in one location and each of the continents has moved.
Plate tectonic processes have influenced:

a. the distribution of earthquakes and volcanoes.
b. the locations of ore deposits and mountain systems.
c. climatic patterns and ocean circulation.
d. the geographic distribution, evolution, and extinction of life forms.
e. all of these

all of these
distribution of earthquakes and volcanoes locations of ore deposits and mountain systems
climatic patterns and ocean circulation
geographic distribution, evolution, and extinctions of life firms.
Copper deposits are most commonly found at transform plate boundaries.

True
False

False
The mechanism for plate movement is:

a. convection of heat within the mantle.
b. conduction of heat from the core.
c. conduction of heat within the mantle.
d. convection of heat within the core.
e. friction created by tidal forces generated by the Moon.

convection of heat within the mantle.
Which are not associated with a mid-oceanic ridge?

a. volcanic eruptions
b. old ocean crust
c. shallow-depth earthquakes
d. hot water
e. transform faults

old ocean crust
During the Triassic, a number of rift related fault basins formed along the eastern margin of North America.

True
False

True