| 1. | The oil shale industry of the Ohio River Valley followed this model.
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| 2. | The pyrolyzed oil shale moves by gravity downward to the gasification section.
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| 3. | Himmetolu oil shale is the highest quality oil shale deposit in Turkey.
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| 4. | Much of the rock is oil shale covering deposits of natural gas.
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| 5. | His thesis was entitled, The Sulfur Content of Coals and Oil Shales.
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| 6. | The New Albany Shale is also a major deposit of oil shale.
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| 7. | These oil shales were formed during the Late Devonian and Early periods.
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| 8. | Himmetolu oil shale is the highest quality oil shale deposit in Turkey.
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| 9. | The shale it is present in, is a kind of oil shale.
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| 10. | This is from oil shale within the bedrock of the Marcellus Formation.
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