tar sand

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tar sand

n. often tar sands
A type of oil sand from which the lighter fractions of petroleum have escaped and in which only the heavier fractions forming a residual asphalt remain.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

tar sand

n
(Geological Science) a sandstone in which hydrocarbons have been trapped; the lighter compounds evaporate, leaving a residue of asphalt in the rock pores
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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However, the oil comes from bituminous sand not a well, and the carbon ends up in the atmosphere not in wheels.
They say train transport is so expensive that Canadian heavy crude, produced by processing bituminous sand, isn't likely to reach Texas and Louisiana in Keystone-like quantities by rail.
Tar sands oil (or "tar sands") is slang for bituminous sand, a mixture of sand, clay, water and an extremely gooey form of petroleum known as bitumen, which resembles tar in appearance.
In Canada, perceptions of energy abundance and associated energy security have resulted in high emissions extraction of oil from bituminous sand and its sale abroad.
The Eastern European countries, particularly Poland and the Baltic states, are demanding that greater account be given to their energy structures (high dependence on coal and bituminous sand), their level of development and the difficulties being encountered by their population as a result of surging energy costs.
[+ or -] 3.27 S9 Slightly ND impregnated bituminous sand S4 Tar sand 148.07 [+ or -] 9.81 S10 Tar sand 30.8 [+ or -] 1.16 S11 Tar sand ND S12 Tar sand 48.80 [+ or -] 3.53 S13 Tar sand 6.10 [+ or -] 0.84 S14 Tar sand 59.61 [+ or -] 4.97 S15 Tar sand 66.41 [+ or -] 5.00 S16 Tar sand 39.19 [+ or -] 3.11 S17 Tar sand 21.42 [+ or -] 1.58 S18 Tar sand 8.43 [+ or -] 0.76 S19 Tar sand 10.73 [+ or -] 0.89 S20 Tar sand 16.95 [+ or -] 1.26 Mean 37.20 [+ or -] 2.78 Sample Ac (Th) [Ac.sup.228] Absorbed Dose No.
A., "The Separation of the Bitumen from Alberta Bituminous Sand," Annual Western Meeting, Edmonton, AB, Canada, October (1929).
Oil sands are naturally occurring deposits of bituminous sand, containing a mixture of water/clay, with bitumen (thick/tar-like hydrocarbon).
Also, producing oil from shale and/or bituminous sands will not be economically feasible if oil prices drop much lower.
Tar sands, also known as bituminous sands or oil sands, represent approximately two-thirds of the world's estimated oil reserves.
Neither term is really accurate, but the more precise "bituminous sands" is not in wide circulation.
A study carried out for the Commission, in 2007, by the Joint Research Centre (JRC) established that GHG emissions from bituminous sands (produced mainly by Canada) were markedly higher than for other fuels, which led the Commission to include this product in an initial draft.