Large-Scale Examples:
* Deltas: Formed at the mouth of rivers where the river's energy decreases and it deposits sediment. The Mississippi River Delta is a famous example.
* Alluvial Fans: Occur where a river flows out of a mountainous area onto a flatter plain. The steep gradient causes the river to deposit sediment in a fan-shaped pattern.
* Sand Dunes: Created by the wind depositing sand in a series of ridges and troughs. These are common in deserts and coastal areas.
* Glacial Moraines: Deposited by glaciers as they melt and release the sediment they were carrying. These can form long ridges or hills of rock and debris.
* Barrier Islands: Long, narrow islands of sand that run parallel to a coastline. They are formed by wave action depositing sand over time.
Smaller-Scale Examples:
* Stalactites and Stalagmites: Formed in caves by the deposition of calcium carbonate from dripping water. Stalactites hang down from the ceiling, while stalagmites grow up from the floor.
* Layers in Sedimentary Rock: Over time, sediment is deposited in layers, and these layers can be compressed and cemented together to form sedimentary rock. The Grand Canyon is a dramatic example of layers of sedimentary rock.
* Sandbars: Formed by waves and currents depositing sand in shallow water.
* Floodplains: The flat area adjacent to a river that is subject to flooding. During floods, the river deposits sediment onto the floodplain, creating fertile soil.
General Principle: Deposition happens whenever a transporting force (water, wind, ice) loses energy and drops the materials it was carrying. This process can occur on a grand scale, shaping entire landscapes, or on a microscopic level, contributing to the formation of rocks and minerals.
