The process of thick sediment layers to "accumulate" along the "boundaries of continental and oceanic plates" is called Subduction.
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During a marine transgression, sea level raises high compared to land level resulting in floods. These are triggered during climate changes, ice-age, isostatic movements.
Subduction occurs at the tectonic plates where one plate is moves under another forcing to sink into Earth’s mantle due to the gravitational force.
The plates are continental and oceanic in the zone of lithosphere. The rate of subduction is usually seven to 8 centimetres per year.
Marine regressions are opposite to transgressions where sea levels fall compared to land levels.
Glaciation is the interval of time within an ice-age. The current glacier period is of Holocene.
During this slow process of sea level rise called a marine transgression, thick, successive layers of sediments deposit along the edge of the continent.
Answer:The immediate cause of the disturbances was the arrest of an African American man, Marquette Frye, by a white California Highway Patrol officer on suspicion of driving while intoxicated. Although most accounts now agree that Frye resisted arrest, it remains unclear whether excessive force was used to subdue him.
