mineral horizon

См. также в других словарях:

• Mineral exploration — is the process of finding ore (commercially viable concentrations of minerals) to mine. Mineral exploration is a much more intensive, organized and professional form of mineral prospecting and, though it frequently uses the services of… …   Wikipedia

• Horizon C — ● Horizon C partie inférieure du sol minéral, appelée aussi roche mère du sol, située entre l horizon B et la roche et qui est le produit de la désagrégation et de l altération physico chimique de la roche …   Encyclopédie Universelle

• 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

• 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

• 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 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

• 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

• Bleu horizon — une des nuances de bleu horizon   Composantes RVB (r, v, b) (127, 143, 166) Triplet hexa. 7F8FA6 CMJN (c …   Wikipédia en Français

• d-horizon — ˈdē ̷ ̷| ̷ ̷ ̷ ̷ noun Usage: usually capitalized D : a soil layer that sometimes occurs beneath the B horizon or the C horizon if present, that has not been subjected to weathering, and that may consist of the unmodified mineral matter from which …   Useful english dictionary

• C-horizon — noun beneath the B horizon and above the bedrock; consisting of weathered rock • Syn: ↑C horizon • Instance Hypernyms: ↑soil horizon * * * ˈsē ̷ ̷| ̷ ̷ ̷ ̷ noun Usage: usually capitalized C : the layer of a soil profile lying beneath the B… …   Useful english dictionary

• A horizon — /ˈeɪ həraɪzən/ (say ay huhruyzuhn) noun the soil horizon which comprises the top level of soil, usually of mixed organo mineral composition; topsoil. See O horizon, B horizon, C horizon …