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tar
tar
tar: see tar and pitch.
The Columbia Electronic Encyclopedia Copyright © 2004.
Licensed from Columbia University Press
Licensed from Columbia University Press
or bituminous sand
Deposit of loose sand or partially consolidated sandstone that is saturated with highly viscous bitumen. Oil recovered from tar sands, commonly referred to as synthetic crude, is a potentially significant form of fossil fuel. The largest known deposits of tar sands occur in Canada's Athabasca River valley, where commercial projects for synthetic oil production from tar sands are being carried out.
Learn more about tar sand with a free trial on Britannica.com.
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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This article is licensed under the GNU Free Documentation License.
Last updated on Friday October 29, 2004 at 09:56:41 PDT (GMT -0700)
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This article is licensed under the GNU Free Documentation License.
Last updated on Friday October 29, 2004 at 09:56:41 PDT (GMT -0700)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
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