oil sand

oil sand

noun Geology.
a sand or sandstone containing oil or tarry residue in the pore spaces.

Origin:
1880–85, Americanism

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Collins
World English Dictionary
oil sand
 
n
a sandstone impregnated with hydrocarbons, esp such deposits in Alberta, Canada

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
oil sand  
A stratum of sand or sandstone containing petroleum that can be extracted by way of wells. The term is also applied to limestone and dolomite strata that contain petroleum.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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