Quick clay is a type of clay that becomes fluid-like when disturbed. It is formed from glacially derived sediments that were deposited in marine environments. When these sediments are uplifted above sea level, fresh water infiltrates, leaching out the salts that helped stabilize the clay structure, leading to a material that can behave as a liquid when disturbed.

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Quick Clay Is

Question 5

Multiple Choice

Quick clay is

A) A marine deposited mixture of glacially derived clay and silt weakened by infiltrating fresh water upon uplift of these sediments above sea level.
B) Clay that expands when wet, contracts when dry.
C) Clay that forms very steep cliffs, which slide rapidly when they fall.
D) Clay that is too unstable for plants to grow on.

Correct Answer: