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salt dome

noun, Geology
a domelike rock structure that is formed beneath the earth's surface by the upward movement of a mass of salt, may reach thousands of feet in vertical extent, and is more or less circular in plan: often associated with oil and gas pools.
Compare diapir.
Origin of salt dome
1905-10 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for salt dome
  • But salt dome formations are not plentiful, so researchers are investigating other inexpensive ways to create storage chambers.
  • There are lows separating these two traps from the salt dome to the north and the trap against the salt ridge to the south.
  • Thus, the oil industry was extremely interested in drilling in and around these salt dome features.
  • Project to determine path of brine plume from salt dome solution and pumping.
British Dictionary definitions for salt dome

salt dome

a domelike structure of stratified rocks containing a central core of salt: formed by the upward movement of a salt deposit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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