Beachrock is a type of sedimentary rock that forms along coastlines, typically in intertidal zones, where marine sediments – such as sand and gravel – become cemented together by calcium carbonate or other minerals precipitated from seawater. This process usually occurs in environments where the right conditions, including wave action, tidal influences, and the presence of certain chemical conditions, allow for the accumulation of sediments and their eventual lithification into rock.
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