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| | Athabasca Tar Sands | Sprol |
 | | That's because the so-called oil sands are about ten percent bitumen, a tarry substance, and 85% clay, sand, and rocks. |
 | | To remove the bitumen from the sand, they wash it, using the Clark water-based extraction process, which involves hot water, aeration, and allowing the bitumen particles to settle out. |
 | | athabasca tar sands, bitumen, canada, oil sands, crude oil, water aeration, ten percent, oil slick, barrel oil, oil production, energy shortage, productive ecosystem, biological productivity, future technology, lot of water, liquid fuels, current technology |
| www.sprol.com /?p=80 (844 words) |
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