Boles, James R. Department of Geological Sciences, University of California, Santa Barbara, California.
- Mode of formation
- Links to Primary Literature
- Additional Readings
Minerals that are formed in sediment or a sedimentary rock. Their in-place origin distinguishes them from minerals that are formed elsewhere and transported to the site of deposition (detrital minerals). Authigenic minerals form at the Earth's surface as well as during subsequent burial. The postdepositional processes are referred to as diagenesis, and the resulting minerals are important clues to postdepositional physical and chemical changes in the rock. See also: Diagenesis; Sedimentary rocks
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