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.

Environmental & Atmospheric Sciences

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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.

Environmental & Atmospheric Sciences

Discuss the concept of geologic time and uniformitarianism. What is the geologic time scale? What will be an ideal response?

Environmental & Atmospheric Sciences

Limestone is dissolved primarily as ________ reacts with water to form a weak acid.

A. methane B. fluorine C. silica D. nitrates E. carbon dioxide

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences