Question 3: Flood basalts have erupted at random intervals throughout geological history and are clear evidence
that the ________ undergoes periods
of enhanced activity rather than being in a uniform steady
state.
Question 6: To obtain a partial fusion as
large as that of the traps, expelling huge quantities of lava, it
is necessary to have a large ________
input.
Question 7: A flood basalt or trap basalt
is the result of a giant volcanic eruption
or series of eruptions that coats large stretches of
land or the ocean floor with ________lava.
Question 9: Degassing was easy (magma maintained at a
high temperature and
more fluid in a chamber of a
size such that confining ________ did not confine gases to the melt
before expulsion).
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