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a deposit of soil, dust, or rock debris formed by the decomposition of rock
Not to be confused with:
alluvion – overflow; flood
alluvium – a deposit of sand, mud, silt, or gravel formed by flowing
illuvium – the material accumulated through soil that has been leached out of another layer of soil
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree


n. pl. e·lu·vi·ums or e·lu·vi·a (-vē-ə)
Residual deposits of soil, dust, and rock particles produced by the action of the wind.

[New Latin ēluvium, from Latin ēluere, to wash out; see elute.]

e·lu′vi·al (-əl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -via (-vɪə)
(Physical Geography) a mass of sand, silt, etc: a product of the erosion of rocks that has remained in its place of origin
[C19: New Latin, from Latin ēluere to wash out]
eˈluvial adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ɪˈlu vi əm)

n., pl. -vi•a (-vi ə)
a deposit of soil, dust, etc., formed from the decomposition of rock and found in its place of origin.
[1880–85; formed on the model of alluvium from Latin ēluere (of water) to wash out (soil, etc.); see elute]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Gold was won largely from shallow open-pits in gold-bearing eluvium, and from selective hard-rock mining of narrow sub-sinter quartz veins and stockworks.
The mining area has mainly slope quaternary modern products, and its eluvium and alluvium are located in the northwest end flap of Gukeng large anticline that plunges to the southwest direction.
Pipe-roofs are adopted not only in tunnel entry portals, but also in tunnel exiting portals, which have unsatisfactory conditions of eluvium covering and landsides and are adjacent to bridges.
Depth [m] Rock 0.0-1.5 Clay 1.5-7.0 Eluvium of the leucogranite 7.0-016.85 Weathered leucogranite 16.85-22.7 Alkali feldspar syenite 22.7-26.3 Alkali feldspar syenite with quartz 26.3--31.8 Leucogranite 31.8-32.8 Alkali feldspar syenite 32.8-37.5 Leucogranite 37.5-38.5 Alkali feldspar syenite 38.5-43.7 Leucogranite 43.7-44.7 Pegmatite 44.7-94.7 Leucogranite 94.7-95.15 Alkali feldspar syenite 95.15-100.4 Leucogranite 100.4-101.7 Alkali feldspar syenite 101.7-106.6 Leucogranite 106.6-107.4 Alkali feldspar syenite 107.4-119.5 Leucogranite 119.5-123.0 Granite with micas 123.00-126.0 Aplite 126.00-205.0 Li-topaz granite Table 2 The chemical composition of the rocks within the KZ-25 borehole (Hanak et al., 2010).
This location contains the thickest development of eluvium in the area, and a major objective was to establish in broad terms the volume of potential feed for the beneficiation plant.
(1) Detritus (adjective detrital) is a geological term used to describe particles of rock derived from pre-existing rock through processes of weathering and erosion.(2) Colluvium or colluvial deposits is the name for loose bodies of sediment that have been deposited or built up at the bottom of a low-grade slope or against a barrier on that slope, transported by gravity.(3) Eluvium or eluvial deposits are those geological deposits and soils that are derived by in situ weathering or weathering plus gravitational movement or accumulation.(4) A pisolite is a sedimentary rock formed from pisoliths.