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eluvial การใช้

ประโยคมือถือ
  • Eluvial sediments prevail in the west part of the town.
  • Kye loamy sand is a classic podzol with well-defined eluvial ( A 2 or Ae ) horizon.
  • In geology, the removed material is irrelevant, and the deposit ( eluvial deposit ) is the remaining material.
  • Eluvial supergene " enrichment of an apatite rich carbonatite in Ontario has produced a significant eluvial phosphate ore deposit.
  • Eluvial supergene " enrichment of an apatite rich carbonatite in Ontario has produced a significant eluvial phosphate ore deposit.
  • The gems form in sedimentary residual gem deposits, eluvial deposits, metamorphic deposits, skarn and calcium-rich rocks.
  • Podzol tends to develop over rock which lacks olivine, although many of these podzols lack an eluvial ( Ae ) horizon.
  • 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.
  • Gray Brown Luvisols have a dark Ah horizon in which organic matter has been mixed with the mineral material ( commonly by earthworm activity ), a brown, often platy eluvial horizon ( Ae ) and an illuvial horizon ( Bt ) in which blocky structure is common.
  • 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.
  • Eluvial deposits those that had weathered from the lode in the usual way, but had not then been transported by flowing water were also worked; these tended to be poorer deposits due to the lack of sorting that a stream provides, and they usually did not have such a ready supply of water available to work them.
  • Gray Luvisols have eluvial and illuvial horizons and may have an Ah horizon if the mean annual soil temperature is below 8 癈 . Vast areas of Gray Luvisols in the Boreal Forest Zone of the Interior Plains have thick, light grey eluvial horizons underlying the forest litter and thick Bt horizons with clay coating the surface of aggregates.
  • Gray Luvisols have eluvial and illuvial horizons and may have an Ah horizon if the mean annual soil temperature is below 8 癈 . Vast areas of Gray Luvisols in the Boreal Forest Zone of the Interior Plains have thick, light grey eluvial horizons underlying the forest litter and thick Bt horizons with clay coating the surface of aggregates.