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  2. Oil shale industry - Wikipedia

    en.wikipedia.org/wiki/Oil_shale_industry

    [11] [19] However, use of oil shale for production of these products is still very rare and in experimental stages only. [1] [6] Some oil shales are suitable source for sulfur, ammonia, alumina, soda ash, and nahcolite which occur as shale oil extraction byproducts. Some oil shales can also be used for uranium and other rare chemical element ...

  3. Resource depletion - Wikipedia

    en.wikipedia.org/wiki/Resource_depletion

    The use of either of these forms of resources beyond their rate of replacement is considered to be resource depletion. [1] The value of a resource is a direct result of its availability in nature and the cost of extracting the resource. The more a resource is depleted the more the value of the resource increases. [2]

  4. Oil shale - Wikipedia

    en.wikipedia.org/wiki/Oil_shale

    Oil shale is an organic-rich fine-grained sedimentary rock containing kerogen (a solid mixture of organic chemical compounds) from which liquid hydrocarbons can be produced. In addition to kerogen, general composition of oil shales constitutes inorganic substance and bitumens.

  5. Heavy crude oil - Wikipedia

    en.wikipedia.org/wiki/Heavy_crude_oil

    [8] "Natural bitumen (often called tar sands or oil sands) and heavy oil differ from light oils by their high viscosity (resistance to flow) at reservoir temperatures, high density (low API gravity), and significant contents of nitrogen, oxygen, and sulfur compounds and heavy-metal contaminants. They resemble the residuum from the refining of ...

  6. Salvation for Tar Sands? - AOL

    www.aol.com/news/2013-08-24-salvation-for-tar...

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  7. Utah oil sands - Wikipedia

    en.wikipedia.org/wiki/Utah_oil_sands

    The Tar Sand Triangle is located in Southeastern Utah and covers an area of 148,000 acres (600 km 2). It is located between the Dirty Devil and Colorado Rivers in Wayne and Garfield Counties. The Tar Sand Triangle is the largest deposit of oil sands in the United States known today.

  8. 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. [25]

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