Alluvium - Wikipedia
网页Alluvium (from Latin alluvius, from alluere 'to wash against') is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings.
Alluvium | Floodplain, Sediment & Soil | Britannica
网页Alluvium, material deposited by rivers. It is usually most extensively developed in the lower part of the course of a river, forming floodplains and deltas, but may be deposited at any point where the river overflows its banks or where the velocity of a river is checked—for example, where it runs.
Alluvial Fan - National Geographic Society
网页2023年10月19日 · An alluvial fan is a triangle-shaped deposit of gravel, sand, and smaller materials called alluvium.
Alluvium Definition & Meaning - Merriam-Webster
网页The meaning of ALLUVIUM is clay, silt, sand, gravel, or similar detrital material deposited by running water.
Alluvium - New World Encyclopedia
网页Alluvium (from the Latin alluvius, from alluere, meaning "to wash against") is soil or sediment deposited by a river or other running water. Alluvium is typically made up of a variety of materials, including fine particles of silt and clay, and larger particles of …
Alluvial deposit | Sediment, Soil & Gravel | Britannica
网页Alluvial deposit, Material deposited by rivers. It consists of silt, sand, clay, and gravel, as well as much organic matter. Alluvial deposits are usually most extensive in the lower part of a river’s course, forming floodplains and deltas, but …
10.1: Alluvial and Fluvial Systems - Geosciences LibreTexts
网页2024年3月20日 · Alluvial Fans. Alluvial fans are mounds of coarse grained sediments formed when a confined stream disgorges into an unconfined area. They typically occur along the margins of mountain ranges where bedrock incised channels draining uplands spill out on to broad open valley floors.
Alluvial systems - Encyclopedia.com
网页The sediments, known as alluvium, can range from clay-sized particles less than 0.002 mm (.00008 in) in diameter to boulders, which are defined as rocks greater than 256 mm (10 in) in diameter, depending on their source and the sediment transport capacity of …
Alluvium
网页2023年7月29日 · Alluvium refers to the loose, unconsolidated sediment or material that is deposited by flowing water, typically rivers, streams, and other bodies of water. It encompasses a range of particle sizes, from large rocks and boulders to smaller pebbles, sand, silt, and clay.
Alluvium - SpringerLink
网页The term ‘alluvium’ is derived from the Latin alluvius, meaning ‘washed against,’ and refers to subaerial deposits of riverine sediments. Typically alluvium is composed of clays, silts, sands, gravels and occasional cobbles, and it frequently contains a significant admixture of organic materials.