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tar sand

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
tar sand
n
(Earth Sciences / Geological Science) a sandstone in which hydrocarbons have been trapped; the lighter compounds evaporate, leaving a residue of asphalt in the rock pores


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Indigenous people in Canada have been badly affected as the tar sand is mined near their settlements and has polluted hunting grounds.
Producing tar sand oil takes more energy and emits more greenhouse gases than exploiting liquid oil wells.
Producing tar sand oil takes more energy and emits more greenhouse gases than exploiting liquid oil wells.
 
 
 
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