sump

sump
   1. In caves a sump is a section of flooded passage. This may be a perched sump, probably quite short, within a vadose cave and created by a local reverse passage gradient. Alternatively it may be a major feature, where a cave passage descends below the regional water table into the phreas, as is common at the lower end of many cave systems. Some short sumps can be dived without the use of breathing apparatus, but most are restricted to exploration by cave divers. Logistics are a barrier to endless sump penetrations, but some have now been explored for many kilometers in length, notable in Cocklebiddy Cave, Australia, the Nohoch Nah Chich and other great flooded systems in Mexico’s Yucatan, and behind Keld Head in Yorkshire [9].
   2. A pool of underground water or point on an underground stream that has a submerged extension, the nature of which has not been determined [10].
   3. A place where the ceiling of a passage drops to and below water level in a cave, leaving no air space with the cave passage continuing underwater [13].
   4. A water trap.

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

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Sump — Sump, n. [Cf. G. sumpf a sump in a mine, a swamp, akin to LG. sump, D. somp a swamp, Dan. & Sw. sump, and perhaps to E. swamp.] 1. (Metal.) A round pit of stone, lined with clay, for receiving the metal on its first fusion. Ray. [1913 Webster] 2 …   The Collaborative International Dictionary of English

  • sump — [sʌmp] n [Date: 1600 1700; Origin: sump swamp (15 20 centuries), from Middle Dutch somp or Middle Low German sump wet ground ] 1.) the lowest part of a ↑drainage system, where liquids or wastes remain 2.) BrE the part of an engine that contains… …   Dictionary of contemporary English

  • sump — /sump/, n. 1. a pit, well, or the like in which water or other liquid is collected. 2. Mach. a chamber at the bottom of a machine, pump, circulation system, etc., into which a fluid drains before recirculation or in which wastes gather before… …   Universalium

  • sump — early 15c., marsh, morass, from M.Du. somp or M.L.G. sump, from P.Gmc. *sumpaz. Meaning pit to collect water is first found 1650s …   Etymology dictionary

  • sump — sb., en, e, ene, i sms. sump , fx sumpområde, sumpplante …   Dansk ordbog

  • sump — ► NOUN 1) the base of an internal combustion engine, which serves as a reservoir of oil for the lubrication system. 2) a depression in the floor of a mine or cave in which water collects. 3) a cesspool. ORIGIN originally denoting a marsh: from… …   English terms dictionary

  • sump — [sump] n. [ME sompe,SWAMP] 1. a) a pit, cistern, cesspool, etc. for draining, collecting, or storing liquids b) Brit. OIL PAN 2. Mining a) a pit or pool at the bottom of a shaft or mine, in which water collects and from which it …   English World dictionary

  • sump — [ sʌmp ] noun count a low open area in the ground that waste liquid flows into …   Usage of the words and phrases in modern English

  • sump|tu|ar|y — «SUHMP chu EHR ee», adjective. having to do with the spending of money; regulating expenses, especially to control extravagance or waste. A law prohibiting any family from owning more than one car would be a sumptuary law. ╂[< Latin… …   Useful english dictionary

  • sump|tu|os|i|ty — «SUHMP chu OS uh tee», noun. expensiveness; costliness …   Useful english dictionary

  • sump — as·sump·sit; as·sump·tion; as·sump·tion·ist; as·sump·tious; as·sump·tive; con·sump·ti·ble; con·sump·tion; pre·sump·tion; pre·sump·tive; pre·sump·tive·ly; pre·sump·tu·ous; pre·sump·tu·ous·ly; pre·sump·tu·ous·ness; re·sump·tion; re·sump·tive;… …   English syllables

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”