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English-Russian dictionary of geology. 2011.
subsurface horizon
Смотреть что такое "subsurface horizon" в других словарях:
horizon — /heuh ruy zeuhn/, n. 1. the line or circle that forms the apparent boundary between earth and sky. 2. Astron. a. the small circle of the celestial sphere whose plane is tangent to the earth at the position of a given observer, or the plane of… … Universalium
Deepwater Horizon oil spill — 2010 oil spill and BP oil spill redirect here. For other oil spills in 2010, see 2010 oil spill (disambiguation). For the 2006 oil spill involving BP, see Prudhoe Bay oil spill. For the drilling rig and explosion, see Deepwater Horizon… … Wikipedia
Soil horizon — Soil samples illustrating horizons (subsoil on right) A soil horizon is a specific layer in the land area that is parallel to the soil surface and possesses physical characteristics which differ from the layers above and beneath … Wikipedia
Deepwater Horizon explosion — This article is about the explosion. For the drilling rig and oil spill, see Deepwater Horizon (disambiguation). Deepwater Horizon explosion Anchor handling tugs and platform supply vessels combat the fir … Wikipedia
Soil Horizon letter designations — ▪ Table Soil horizon letter designations See as table: Base symbols for surface horizons O organic horizon containing litter and decomposed organic matter A mineral horizon darkened by humus accumulation Base symbols for subsurface horizons … Universalium
B horizon — /ˈbi həraɪzən/ (say bee huhruyzuhn) noun a subsurface soil horizon with an accumulation of clay, colouring agents, etc., with a better developed soil structure than is found in the A horizon. See O horizon, A horizon, C horizon …
B horizon — noun Date: 1938 a subsurface soil layer that is immediately beneath the A horizon from which it obtains organic matter chiefly by illuviation and is usually distinguished by less weathering … New Collegiate Dictionary
Soil — For other uses, see Soil (disambiguation). A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; the bottommost layer represents bedrock … Wikipedia
Solonetz — ( ru. Солонец) is a type of soil in FAO soil classification. They have, within the upper 100 cm of the soil profile, a so called natric horizon (natrium is the chemical term for sodium). There is a subsurface horizon (subsoil), higher in clay… … Wikipedia
Inceptisols — are a soil order in USDA soil taxonomy. They form quickly through alteration of parent material. They are older than entisols. They have no accumulation of clays, Fe, Al or organic matter. They have an Ochric or Umbric horizon and a cambic… … Wikipedia
Spodic soils — refer to a diagnostic subsurface horizon defined by the illuvial accumulation of organic matter. Iron oxide can be present or absent, and the soil is generally derived from a sandy parent material. Spodic may also refer to the taxonomic soil… … Wikipedia
