What are the characteristics of large-scale strike-slip faults or shear zones?
What will be an ideal response?
Answer: Most large-scale strike-slip faults (shear zones) are steep or vertical structures that are relatively straight in map view, although they may contain stepovers or bends where extensional structures or contractional structures form. Some of the largest strike-slip faults are plate boundaries and large strike-slip faults are associated with major earthquakes.
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Which of these terms describes the soil and rock that must be removed before surface mining of an ore can commence?
A. overburden B. underburden C. overweight D. spoils
Which of the following statements about the Aral Sea is false?
a. Water has been diverted from the Aral Sea and the two rivers that replenish its water for use in manufacturing. b. The volume of the Aral Sea has dropped by 90%. c. The salinity levels have risen dramatically. d. Most native fish species have disappeared. e. Salts carried by the wind from the dried up lake basin are negatively impacting local crops.
Look over the Bowen’s Reaction Series. Ultramafic igneous rocks form at lower temperatures than Felsic igneous rocks.
Indicate whether the statement is true or false.
Which of the following is the only viable explanation for the documented and observable recent climate changes, including the increased average temperature of Earth's surface?
A) Changes in the Sun's brightness B) Major volcanic eruptions C) Release of human-caused emissions D) Reversed magnetic polarity E) Variations in Earth's orbit