👉 A depositional event is a type of sedimentary deposit that results from the accumulation or deposition of sediment over time. This process involves the gradual accumulation of material such as sand, silt, and gravel along with organic matter, minerals, and other materials in a river, ocean, lake, or stream. These deposits are formed through various processes including weathering, erosion, mineral weathering, and chemical weathering. Deposits can be divided into two main types: marine and terrestrial. Marine