Download File

Interactions at plate boundaries depend on
the direction of relative plate motion and the
type of crust.
Which of the locations listed below is least associated
with a volcanically active plate boundary?
A. Mid-ocean ridge
B. Deep ocean trench
C. Transform fault
D. Continental Rift
Interactions at plate boundaries depend on
the direction of relative plate motion and the
type of crust.
Which of the locations listed below is least associated
with a volcanically active plate boundary?
A. Mid-ocean ridge
B. Deep ocean trench
C. Transform fault
D. Continental Rift
Interactions at plate boundaries depend on
the direction of relative plate motion and the
type of crust.
Which kind of plate boundary is associated with
Earthquake activity?
A. Divergent Boundary
B. Convergent Boundary
C. Transform-fault Boundary
D. All of the above
Interactions at plate boundaries depend on
the direction of relative plate motion and the
type of crust.
Which kind of plate boundary is associated with
Earthquake activity?
A. Divergent Boundary
B. Convergent Boundary
C. Transform-fault Boundary
D. All of the above
Two competing hypotheses for the
mantle convection system.
Considering either the whole mantle or stratified mantle
convection models, at which kind of plate tectonic
boundary is the upper part of the mantle
(asthenosphere) rising?
A. Divergent boundaries
B. Convergent boundaries
C. Transform boundaries
Two competing hypotheses for the
mantle convection system.
Considering either the whole mantle or stratified mantle
convection models, at which kind of plate tectonic
boundary is the upper part of the mantle
(asthenosphere) rising?
A. Divergent boundaries
B. Convergent boundaries
C. Transform boundaries
Seafloor Spreading
Evidence for magnetic reversals has been primarily
preserved in:
A. metamorphic rocks near convergent plate boundaries
B. limestone and shale accumulating in shallow ocean
basins
C. active dune fields in the arid regions of the world
D. extrusive igneous rocks associated with mid-ocean ridges
Seafloor Spreading
Evidence for magnetic reversals has been primarily
preserved in:
A. metamorphic rocks near convergent plate boundaries
B. limestone and shale accumulating in shallow ocean
basins
C. active dune fields in the arid regions of the world
D. extrusive igneous rocks associated with midocean ridges
Seafloor Spreading
Absolute ages obtained from igneous rocks samples
recovered from mid-ocean ridges reveal that:
A. rocks ages get older with greater distance from the axis of
the spreading ridge
B. the pattern of rock ages is mirrored on each side of the
spreading ridge
C. the duration of each magnetic interval is the same across
the axis of the spreading ridge
D. all of these
E. None of these
Seafloor Spreading
Absolute ages obtained from igneous rocks samples
recovered from mid-ocean ridges reveal that:
A. rocks ages get older with greater distance from the axis of
the spreading ridge
B. the pattern of rock ages is mirrored on each side of the
spreading ridge
C. the duration of each magnetic interval is the same across
the axis of the spreading ridge
D. all of these
E. None of these
Seafloor Spreading
Which of the following components within an igneous
rock are most responsive to the direction of the Earth’s
magnetic field?
A. quartz
B. feldspar
C. iron
D. magnesium
Seafloor Spreading
Which of the following components within an igneous
rock are most responsive to the direction of the Earth’s
magnetic field?
A. quartz
B. feldspar
C. iron
D. magnesium
Plate Tectonics: Subduction
Subduction is a tectonic process that happens at which
type of plate boundary?
A. convergent
B. divergent
C. transverse
D. hot spot
Plate Tectonics: Subduction
Subduction is a tectonic process that happens at which
type of plate boundary?
A. convergent
B. divergent
C. transverse
D. hot spot
Plate Tectonics: Subduction
What causes oceanic crust to subduct when it is
confronted by another oncoming plate?
A. temperature
B. strain
C. density
D. elasticity
Plate Tectonics: Subduction
What causes oceanic crust to subduct when it is
confronted by another oncoming plate?
A. temperature
B. strain
C. density
D. elasticity
Divergent Boundaries
Why is molten magma rising to the surface at
divergent plate boundaries?
A. because it is more dense than the hotter rock around it
B. because it is affected by anti-gravity
C. because it is less dense than the cooler rock surrounding
it
D. it is pure chance that magma rises at these boundaries
Divergent Boundaries
Why is molten magma rising to the surface at
divergent plate boundaries?
A. because it is more dense than the hotter rock around it
B. because it is affected by anti-gravity
C. because it is less dense than the cooler rock
surrounding it
D. it is pure chance that magma rises at these boundaries
Assembly and Breakup of Pangaea
How long did it take to form the modern continental
arrangement since the breakup of Pangaea?
A. 750 Ma
B. 200 Ma
C. 500 Ma
D. 50 Ma
Assembly and Breakup of Pangaea
How long did it take to form the modern continental
arrangement since the breakup of Pangaea?
A. 750 Ma
B. 200 Ma
C. 500 Ma
D. 50 Ma
Assembly and Breakup of Pangaea
Based on the present directions of plate motions, which
of the following should occur over the next 50 million
years?
A. North America will separate from South America.
B. Australia will collide with Antarctica.
C. Africa will collide with Eurasia.
D. The Atlantic Ocean Basin will close.
Assembly and Breakup of Pangaea
Based on the present directions of plate motions, which
of the following should occur over the next 50 million
years?
A. North America will separate from South America.
B. Australia will collide with Antarctica.
C. Africa will collide with Eurasia.
D. The Atlantic Ocean Basin will close.