Question

How do clastic sedimentary rocks form?

Answer 1

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Answer 2

Clastic sedimentary rocks are made up of pieces of other rocks. For example, sand on a beach or in a dune can get buried. Under the pressure of burial, the sand is pressed together and compacted. The individual sand grains are glued together by minerals such as calcite (calcium carbonate) and hematite (iron oxide) that are precipitated (see chemical sedimentary rocks) out of ground water that travels between the sand grains.

http://ratw.asu.edu/aboutrocks_clasticsedimentary.html