If there is a hot spot in the asthenosphere beneath Yellowstone, Wyoming, which way will the center of active volcanism appear to have moved in a million years?

East
West
North
South


The Gulf Coast of Texas is a(n) _____________ continental margin.

active
passive
subduction
divergent


The west coast of Peru is a(n) _______ continental margin.

active
passive
transform
divergent


Melange deposits are associated with a _______ plate margin

passive
shear
tensional margin
compressional margin


Thrust faults are associated with a _______ plate margin.

passive
spreading center
continental/ocean convergent
transform


Silica rich sediments characterize the deep sea floor. The silica could have come from

volcanic debris
life forms in the ocean
neither of these is correct
the first two answers are correct


Turbidity currents can occur at both active and passive continental margins (True or False).

True
False


The presence of "magnetic stripes" recorded in the oceanic crust reflects __________ .

reversals in polarity of the Earth's magnetic field
the rate of sea floor spreading
variation in composition of the oceanic crust
all of these


The width of the "magnetic stripes" recorded in the oceanic crust reflects _________ .

reversals in polarity of the Earth's magnetic field
the rate of sea floor spreading
variation in composition of the oceanic crust
all of these


Transform faults _____________ .

can offset of spreading centers
can cut across continental crust
exhibit horizontal offset
all of these


Ophiolites _________________

are an ancient piece of sea floor
are emplaced in a compressional setting
are primarily igneous rocks with a thin sedimentary covering
all of these

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