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  2. Oil sands - Wikipedia

    en.wikipedia.org/wiki/Oil_sands

    The Athabasca oil sands, also known as the Athabasca tar sands, are large deposits of oil sands rich in bitumen, a heavy and viscous form of petroleum, in northeastern Alberta, Canada. These reserves are one of the largest sources of unconventional oil in the world, making Canada a significant player in the global energy market. [27]

  3. Chat (mining) - Wikipedia

    en.wikipedia.org/wiki/Chat_(mining)

    The wastes from wet separation are typically sand and silt size and are called "tailings." Milling produces large chat waste piles and flat areas with tailings deposited in impoundments. Tailings generally contain higher concentrations of heavy metals and therefore present a higher risk to human health and the environment through direct contact ...

  4. Bitumen - Wikipedia

    en.wikipedia.org/wiki/Bitumen

    Bitumen also occurs in unconsolidated sandstones known as "oil sands" in Alberta, Canada, and the similar "tar sands" in Utah, US. The Canadian province of Alberta has most of the world's reserves, in three huge deposits covering 142,000 square kilometres (55,000 sq mi), an area larger than England or New York state .

  5. Tar sands - Wikipedia

    en.wikipedia.org/?title=Tar_sands&redirect=no

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  6. Environmental issues in Canada - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_in_Canada

    Tar sands can be described as areas on land containing an unconventional mixture of sand, clay, water, and a petroleum based residue called bitumen, that is useful to produce crude oil. [48] In the NDRC article it mentions that Canada is currently one of the largest depositors of crude oil in the world.

  7. Tundra of North America - Wikipedia

    en.wikipedia.org/wiki/Tundra_of_North_America

    Oil sands, often pejoratively referred to as tar sands, are a phenomenon unique to the tundra environment and are profitable and plentiful in the Athabasca region of the Alberta sands. [16] Oil sands consist of bitumen, which contains petroleum, found in a natural state combined with clays, sands, and water. [ 16 ]

  8. Tar - Wikipedia

    en.wikipedia.org/wiki/Tar

    One can produce a tar-like substance from corn stalks by heating them in a microwave oven. This process is known as pyrolysis. Tar is a dark brown or black viscous liquid of hydrocarbons and free carbon, obtained from a wide variety of organic materials through destructive distillation. Tar can be produced from coal, wood, petroleum, or peat. [1]

  9. Taiga of North America - Wikipedia

    en.wikipedia.org/wiki/Taiga_of_North_America

    Tar sands have affected over 75% of the habitat in the Alberta taiga forest due to the clearing of the forests and the oil ponds that come from the extraction. These tar sands also create awful toxic oil ponds that affect wildlife and surrounding vegetation. Oil extraction also affects the forest soil, which harms tree and plant growth.