eluvial


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Related to eluvial: illuvial, Eluvial horizon

eluvial

[ē′lüv·ē·əl]
(geology)
Of, composed of, or relating to eluvium.
References in periodicals archive ?
The capacity of cat-ion exchange in grey-humus and eluvial horizons is 23-28 mg-[micro]Eq/100 g of soil.
Results from the first 6 holes drilled, 5 at Pegmatite Gully and 1 at Eluvial Gully, returned significant results up to 2,201ppm tin and 90ppm tantalum.
Low soil calcareousness is connected with soil profile development (forming of illuvial and eluvial horizons).
Soltera said that the first objective of the agreement announced today is to develop eluvial gold production from the El Torno property in northern Argentina.
The soil of the parcel had been classified, following Embrapa's nomenclature (1999), as hydromorphic spodosols, quartzarenic neosols and organosols, variations being observed in relation to the depth of the eluvial horizon, that condition different levels of soil moisture (Gomes et al.
Process Regsol Brunisol Organic Solonetz Physical mixing l 1 o 1 Minerai weathering l 1 o 1 Formation secondary minerals o 1 o m Leaching o 1 o o Eluvial --illuvial o 1 o h Organic matter accumulation o m h o Process Chernozen Podzol Luvisol Physical mixing m o o Minerai weathering m m m Formation secondary minerals 1 m m Leaching 1 m m Eluvial --illuvial m h h Organic matter accumulation m m m
This process consists in the translocation of claysize particles from eluvial (A, E) to illuvial horizons (mainly Bt, and to a lesser degree, in BA or BC horizons).
In addition, soil chemical analyses can help to differentiate thin eluvial horizons otherwise masked by the organic materials in the overlying A horizons.
Sedimentary geologists refer to this as a lag deposit or eluvial deposit.
Eluvial soils are soil horizons that have lost material through this process.
Secondary deposits may be classified into two types: eluvial and alluvial deposits.