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Unformatted text preview: • The perils of fossilization o Hunters and scavengers feed on flesh o Animals chew bones o Weathering and rot How to become a fossil • Get buried o Protected from deterioration o Preserved by mineralization o Buried = getting covered by sediments Water-borne sediments • Run-off from hills • Sedimentation in lakes • Water carries sediments • Gently floods bury deposits • Forceful floods destroy deposits Air-borne sediments • Volcanic ash • Petrifies into Tuff o sediments erode o deposits accumulate downstream • caves o caves act as deposit traps o caves were used for habitation in prehistory o slow trickling water creates good environment for fossil formation...
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- Winter '09
- Anthropology, 3.5 billion years, oldest known fossils, Leaves Footprints, conditions Comparatively fossils, hills Sedimentation