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Wind.
Older layerscan become compacted
Most sediment washes or falls into a river as a result of mass movement and runoff. Other sediment erodes from the bottom or sides of the river. Wind can also drop sediment into the water. Hope I helped! -DorkyGeek77
Some forces that cause erosion and carry sediment from one place to another are wind and water.
Oil and natural gas, also called fossil fuels, are formed by anaerobic decomposition of dead and buried organisms. Anaerobic decomposition is the decomposition of something while lacking oxygen, which is caused by it being buried in mud and sediment, which over time (millions of years) will cause favorable conditions for fossil fuels to form.
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Earthquakes can trigger (submarine)landslides and debris flows which can act to cause the deposition of sediment, however they are far from the only cause of sediment deposition.
sediment
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The mountains around the valley formed, creating the valley. The Central Valley formed as the mountains rose, the crust forming the Central Valley's floor was bent downward. Slowly, a thick layer of sediment built up the entire valley floor.
Piles of sediment
Erosion
As more sediment is added, it is compressed and hardens into rock layers.
Wind.
Lithification refers to the process of turning sediments into rock. The 2 processes that cause sediment to be lithified into solid sedimentary rock are compaction and cementation.
Older layerscan become compacted