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6-1 Flash Cards

Formation of Sedimentary Rocks

TermDefinition
Sediments Are small pieces of rock that are moved and deposited by water, wind, glaciers, and gravity.
Weathering Produces rock and mineral fragments known as sediments.
Chemical Weathering Occurs when the minerals in a rock are dissolved or otherwise chemically changed.
Physical Weathering The process that breaks rocks apart without changing their chemical composition.
Erosion The removal and transport of sediment.
Deposition When transported sediments are deposited on the ground or sink to the bottom of a body of water.
Lithification The physical and chemical processes that transform sediments into sedimentary rocks.
Compaction The weight of overlying sediments forces the sediment grains closer together, causing physical changes.
Cementation Occurs when mineral growth glues sediment grains together into solid rock.
Bedding The primary feature of sedimentary rocks is horizontal layering.
Graded Bedding Bedding in which the particle sizes become progressively heavier and coarser toward the bottom layers.
Cross Bedding Is formed as inclined layers of sediment are deposited across a horizontal surface.
Ripple Marks When sediment is moved into small ridges by wind or wave action or by a river current.
Created by: keylinf
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