alluvium

(redirected from alluvial deposit)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to alluvial deposit: fluvial deposit

alluvium

The material deposited on land by virtue of the process of accretion. The accretion process occurs when rivers or other waters deposit silt and mud on land,and thus create more land; the silt and mud making up the new land is called alluvium.

References in periodicals archive ?
2010) made a comparative study of pile anchor support system for deep excavation in alluvial deposits of Lahore.
In order to delineate variations of the alluvial deposits thickness at the wadis sites the best geophysical techniques to be employed are the electrical or electromagnetic methods because of the electrical contrasts between conductive over-bank deposits and the resistive coarse-grained sediments in the inner wadis as well the contrast between the higher resistive basement rocks and the overlying saturated zone of weathered basement and the alluvial deposits which are overlain by more resistive dry superficial deposits.
The derived correlations for alluvial deposits of Surat SUDA are tabulated in Table 4.
Older, rubified alluvial deposits of the Shepparton Formation are scattered around the area (Cameron et al.
Discharges from placer mining consist of water and the naturally occurring materials found in alluvial deposits.
It is the alluvial deposits of the region that have proved the most significant to date, not only because they have yielded approximately 6.
From radiocarbon dates of a few alluvial deposits (sediments deposited by streams or rivers) and analyses of soils along the southeastern end of the fault, Madole brackets the time of last movement between 500 and 2,000 years ago.
Alluvial mining refers to mining precious metal deposits (particularly gold and gemstones) found in alluvial deposits - which are deposits of sand and gravel in modern or ancient stream beds, or occasionally glacial deposits.
The alluvial deposits there were mined from beneath 1-4 m of overburden using simple hand tools (e.
This third assemblage includes lavas and hypabyssal intrusions, along with extension-related sedimentary and alluvial deposits ranging in age from 16M years to present.
The rich onshore alluvial deposits in the Namib desert between the Orange River and the Namibian port of Luderitz have yielded over 70m carats of high quality gems since World War One.
This is particularly valuable where, as is usually the case with alluvial deposits, grade and ore characteristics vary rapidly both along and across the channels and sampling data ahead of the plant are inadequate.