A seismic gap is
A. a segment of an active fault where earthquakes have not occurred for a long time
B. the time between large earthquakes
C. the center of a plate where earthquakes rarely happen
Answer: A
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How does foliation occur?
A) physical rotation of preexisting minerals B) recrystallization C) dissolution and new mineral growth along a preferred orientation D) all of the above
An eruption of a viscous, felsic magma is likely to form a lahar. Indicate whether the statement is true or false
Landslides cannot occur without triggers.
a. true b. false
Heap-leach extraction involves piling crushed ore into large piles and spraying it with ________________.
A) an alkaline-cyanide solution B) concentrated salt water C) high-pressure steam D) giant sandblasters E) none of these are correct.