Formation processes affect the way in which finds came to be buried and what happened to them after their burial.A good example of a natural formation process would be

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All of the options listed involve natural formation processes that can affect the way finds are buried and preserved. Gradual burial by wind-borne soil or sand can lead to good preservation of organic material, while the sudden fall of ash over Pompeii preserved the city and its inhabitants in a moment in time. Slow accumulation of river sediment can bury features and artifacts, while gradual burial by sand can lead to the preservation of delicate items like textiles and even human remains. All of these natural formation processes play a role in how archaeological sites are preserved and studied.

Formation Processes Affect the Way in Which Finds Came to Be