tar sand


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Related to tar sand: oil shale

tar sand

[′tär ‚sand]
(geology)
A type of oil sand; a sand whose interstices are filled with asphalt that remained after the escape of the lighter fractions of crude oil.
References in periodicals archive ?
A major claim, in addition to the normal potential pipeline breakage and leakage, is the alleged toxicity and "badness" of the tar sand crude.
In a letter to Secretary of State Hillary Clinton, Waxman said, "Extracting tar sands bitumen and upgrading it to synthetic crude oil produces roughly three times greater greenhouse gas emissions than producing conventional oil on a per unit basis.
The process of extracting oil from the tar sand produces up to four times as much green house gas emissions.
Last Wednesday, in an event organized by Climate Action Network Canada, about 50 young Canadian activists rallied at the COP15 summit for a moratorium on the tar sands work, both for its environmental and human rights impacts.
The Canadian Tar Sands campaigners hope people from all over Wales will be at Y Plas, Machynlleth, on Thursday, November 19.
Until now, fuel could only be made from tar sand by using vast amounts of water, which then remain heavily contaminated.
Occurrence of seepage and tar sand deposits over the Okitipupa ridge in the Dahomey basin provided the initial impetus for oil exploration in Nigeria.
Now a researcher says spectral measurements of the dark side resemble those of tar sands on Earth.
To many experts, the billions of barrels of oil trapped in the world's tar sands represent the future of the global energy industry.
Keystone Pipeline went into operation in June 2010 and now delivers 600,000 barrels per day from the Canadian tar sands to U.
From a carbon emissions footprint, tar sand mining may be the filthiest form of energy production we know of.
The safe exploitation of tar sand deposits depends on finding methods to clean up these pollutants.