from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A stratum of sand or sandstone containing petroleum.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A relatively loose sandstone, or porous carbonate rock, impregnated with bitumen.


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  • Oil sand is said to be the energy source of the future, however harvesting this oil sand is a leading cause of deforestation and is the largest contributor in North America to climate change.

    February 8, 2016