Why is cleavage always associated with flattening strain (oblate strain ellipsoids)?
What will be an ideal response?
Answer: Because of the anisotropic loss of volume by pressure solution across the cleavage.
You might also like to view...
Discuss the concept of geologic time and uniformitarianism. What is the geologic time scale? What will be an ideal response?
Why does benching reduce the risk of mass movements?
A)It increases the amount of vegetation on a slope. B)It prevents rainwater from seeping into the hill. C)It lowers the average slope of a hill. D)It fastens unstable rock to the underlying stable bedrock. E)Benching does not reduce the risk of mass movements.
Limestone is dissolved primarily as ________ reacts with water to form a weak acid.
A. methane B. fluorine C. silica D. nitrates E. carbon dioxide
First motion studies of mid-ocean ridges show that the faults there are ________, and parallel to the rift valley.
A. deep focus earthquakes B. compression C. strike-slip motion D. normal E. subduction