Fluvial vs. Alluvial - What's the difference?

Wikipedia

  • Fluvial

    In geography and geology, fluvial processes are associated with rivers and streams and the deposits and landforms created by them. When the stream or rivers are associated with glaciers, ice sheets, or ice caps, the term glaciofluvial or fluvioglacial is used.

  • Alluvial

    Alluvium (from the Latin alluvius, from alluere, "to wash against") is loose, unconsolidated (not cemented together into a solid rock) soil or sediments, which has been eroded, reshaped by water in some form, and redeposited in a non-marine setting. Alluvium is typically made up of a variety of materials, including fine particles of silt and clay and larger particles of sand and gravel. When this loose alluvial material is deposited or cemented into a lithological unit, or lithified, it is called an alluvial deposit.

Wiktionary

  • Fluvial (adjective)

    Of, pertaining to, inhabiting, or produced by the action of a river or stream

  • Alluvial (adjective)

    Pertaining to the soil deposited by a stream.

  • Alluvial (noun)

    A deposition of sediment over a long period of time by a river; an alluvial layer.

  • Alluvial (noun)

    Alluvial soil; specifically, in Australia, gold-bearing alluvial soil.

Oxford Dictionary

  • Fluvial (adjective)

    of or found in a river

    "fluvial processes"

    "fluvial deposits"

  • Alluvial (adjective)

    relating to or derived from alluvium

    "rich alluvial soils"

Webster Dictionary

  • Fluvial (adjective)

    Belonging to rivers; growing or living in streams or ponds; as, a fluvial plant.

  • Alluvial (noun)

    Alluvial soil; specif., in Australia, gold-bearing alluvial soil.

  • Alluvial (adjective)

    Pertaining to, contained in, or composed of, alluvium; relating to the deposits made by flowing water; washed away from one place and deposited in another; as, alluvial soil, mud, accumulations, deposits.

Princeton's WordNet

  • Fluvial (adjective)

    of or relating to or happening in a river;

    "fluvial deposits"

  • Alluvial (adjective)

    of or relating to alluvium

Illustrations

Fluvial

Alluvial

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