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Contents of 5.3 Why are fossils found in sedimentary rocks?

5.3 Why are fossils found in sedimentary rocks?

• Many sedimentary rocks contain biologic remains called fossils.
• Organisms live and die in areas where sediments accumulate. Geologists interpret ancient environments from their buried remains.
• Organic matter buried with sediment changes under increased temperature over time into combustible organic compounds such as coal, oil, and natural gas.