Lithification

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Lithification (from the Greek word lithos meaning 'rock' and the Latin-derived suffix -ific) is the process in which sediments compact under pressure, expel connate fluids, and gradually become solid rock. Essentially, lithification is a process of porosity destruction through compaction and cementation. Lithification includes all the processes which convert unconsolidated sediments into sedimentary rocks. Petrification, though often used as a synonym, is more specifically used to describe the replacement of organic material by silica in the formation of fossils.[1]

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  1. ^ Hazlett, James S. Monroe; Reed Wicander; Richard (2006). Physical geology : exploring the earth (6th ed.). Belmont: Thomson. pp. 203–204. ISBN 9780495011484.