phreas

   , phreatic water
   (From the Greek word meaning well.)
   1. The zone of saturated rock below the water table, within which all conduits and subconduits are water filled (sometimes referred to as the flooded, phreatic or saturated zone). Commonly the phreatic zone is considered as being subdivided into an upper (shallow phreatic) zone and a lower stagnant phreatic zone [9].
   2. Water in the zone of saturation; water below the water table [10].

A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. . 2002.

Look at other dictionaries:

  • PHREAS Johannes — vide Iohannes …   Hofmann J. Lexicon universale

  • phreas, dynamic —    A phreatic zone or part of a phreatic zone where water moves fast with turbulence under hydrostatic pressure [25] …   Lexicon of Cave and Karst Terminology

  • dynamic phreas —    See phreas, dynamic …   Lexicon of Cave and Karst Terminology

  • IOHANNES Phreas — Londinensis, auctor Cosmographiae. Xenoph. ex parte, et Diod. Sic. transtulit. Obiit A. C. 1465 …   Hofmann J. Lexicon universale

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  • phréatique — [ freatik ] adj. • 1887; du gr. phrear, atos « puits » ♦ Didact. Nappe phréatique : nappe d eau souterraine qui alimente des sources, des puits. ● phréatique adjectif (grec phrear, atos, puits) Qui a trait aux puits. ● phréatique (expressions) a …   Encyclopédie Universelle

  • bathyphreatic —    Referring to water moving with some speed through downward looping passages in the phreatic zone [25].    See bathyphreatic zone, ground water, phreas …   Lexicon of Cave and Karst Terminology

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