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- Eluvium abstract "In geology, eluvium or eluvial deposits are those geological deposits and soils that are derived by in situ weathering or weathering plus gravitational movement or accumulation. The process of removal of materials from geological or soil horizons is called eluviation or leaching. There is a difference in the usage of this term in geology and soil science. In soil science, eluviation is the transport of soil material from upper layers of soil to lower levels by downward precipitation of water across soil horizons, and accumulation of this material (illuvial deposit) in lower levels is called illuviation. In geology, the removed material is irrelevant, and the deposit (eluvial deposit) is the remaining material. Eluviation occurs when precipitation exceeds evaporation.A soil horizon formed due to eluviation is an eluvial zone or eluvial horizon. In a typical soil profile, the eluvial horizon refers to a light-colored zone located (depending on context and literature) either at the lower part of the A horizon (symbol: Ae) or within a distinct horizon (E horizon) below the A, where the process is most intense and rapid. Yet some sources consider the eluvial zone to be the A horizon plus the (distinct) E horizon, as eluviation technically occurs in both. The strict eluvial horizon (E horizon) is typically light gray, clay-depleted, contains little organic matter and has a high concentration of silt and sand particles composed of quartz and other resistant minerals. Eluvial ore deposits are those such as tungsten and gold placer deposits formed by settling and enriched by the winnowing or removal of lower density materials. Diamonds within yellow ground (weathered portions of kimberlites) may be considered to be eluvial deposits. Cassiterite and columbite-tantalite deposits also occur as residual or eluvial concentrations. The Pitinga tin deposit in Brazil, an eluvial deposit, is one of the largest tin mines in the world. Weathering supergene enrichment of an apatite rich carbonatite in Ontario has produced a significant eluvial phosphate ore deposit.".
- Eluvium wikiPageExternalLink abstract_45198.htm.
- Eluvium wikiPageExternalLink deposits4.html.
- Eluvium wikiPageID "4804449".
- Eluvium wikiPageLength "3679".
- Eluvium wikiPageOutDegree "33".
- Eluvium wikiPageRevisionID "540453142".
- Eluvium wikiPageWikiLink Alluvium.
- Eluvium wikiPageWikiLink Apatite.
- Eluvium wikiPageWikiLink Brazil.
- Eluvium wikiPageWikiLink Carbonatite.
- Eluvium wikiPageWikiLink Cassiterite.
- Eluvium wikiPageWikiLink Category:Economic_geology.
- Eluvium wikiPageWikiLink Category:Sedimentology.
- Eluvium wikiPageWikiLink Category:Soil_science.
- Eluvium wikiPageWikiLink Colluvium.
- Eluvium wikiPageWikiLink Coltan.
- Eluvium wikiPageWikiLink Columbite-tantalite.
- Eluvium wikiPageWikiLink Diamond.
- Eluvium wikiPageWikiLink Diluvium.
- Eluvium wikiPageWikiLink Geology.
- Eluvium wikiPageWikiLink Gold.
- Eluvium wikiPageWikiLink Illuvial_deposit.
- Eluvium wikiPageWikiLink Illuviation.
- Eluvium wikiPageWikiLink Illuvium.
- Eluvium wikiPageWikiLink Kimberlite.
- Eluvium wikiPageWikiLink Lessivage.
- Eluvium wikiPageWikiLink Mineral.
- Eluvium wikiPageWikiLink Ontario.
- Eluvium wikiPageWikiLink Ore.
- Eluvium wikiPageWikiLink Phosphate.
- Eluvium wikiPageWikiLink Placer_deposit.
- Eluvium wikiPageWikiLink Quartz.
- Eluvium wikiPageWikiLink Sand.
- Eluvium wikiPageWikiLink Silt.
- Eluvium wikiPageWikiLink Soil.
- Eluvium wikiPageWikiLink Soil_horizon.
- Eluvium wikiPageWikiLink Soil_science.
- Eluvium wikiPageWikiLink Tungsten.
- Eluvium wikiPageWikiLink Weathering.
- Eluvium wikiPageWikiLinkText "Eluvial deposits".
- Eluvium wikiPageWikiLinkText "Eluvium".
- Eluvium wikiPageWikiLinkText "eluvial horizons".
- Eluvium wikiPageWikiLinkText "eluvial".
- Eluvium wikiPageWikiLinkText "eluviation".
- Eluvium wikiPageWikiLinkText "eluvium".
- Eluvium hasPhotoCollection Eluvium.
- Eluvium wikiPageUsesTemplate Template:For.
- Eluvium subject Category:Economic_geology.
- Eluvium subject Category:Sedimentology.
- Eluvium subject Category:Soil_science.
- Eluvium type Science.
- Eluvium type Subfield.
- Eluvium comment "In geology, eluvium or eluvial deposits are those geological deposits and soils that are derived by in situ weathering or weathering plus gravitational movement or accumulation. The process of removal of materials from geological or soil horizons is called eluviation or leaching. There is a difference in the usage of this term in geology and soil science.".
- Eluvium label "Eluvium".
- Eluvium sameAs Eluvión.
- Eluvium sameAs Eluuvium.
- Eluvium sameAs Elubioi.
- Eluvium sameAs Элювий,_элювийлік_шөгінділер.
- Eluvium sameAs Eluvium.
- Eluvium sameAs Eluwium.
- Eluvium sameAs m.0cp09t.
- Eluvium sameAs Элювий.
- Eluvium sameAs Eluvij.
- Eluvium sameAs Елювій.
- Eluvium sameAs Elyuviy.
- Eluvium sameAs Q2449835.
- Eluvium sameAs Q2449835.
- Eluvium wasDerivedFrom Eluvium?oldid=540453142.
- Eluvium isPrimaryTopicOf Eluvium.