Lithification occurs ________.

Question

Quizplus · Accepted Answer

Lithification refers to the process of converting loose sediment into solid rock, and this typically occurs in the shallow subsurface. The process involves compaction, which squeezes the sediment grains together, and cementation, which involves the precipitation of minerals between the grains that help to bind them together. While lithification can occur at the surface of Earth in some cases (such as with a volcanic ash deposit that is quickly buried and compacted), it usually occurs in the subsurface where the weight of overlying sediment helps to create the necessary pressure for compaction. Lithification can occur anywhere on Earth where loose sediment is present, so D is not the best choice, and lithification usually occurs at depths where burial and compaction are possible, rather than deep underground, so C is not the best choice either.

Lithification Occurs ________