| 21. | These macerals are usually found in relatively small amounts in most oil shales.
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| 22. | Estonia has one of the largest deposits of oil shale in the world.
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| 23. | The age of the oil shale deposits ranges from Cambrian to Tertiary age.
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| 24. | General composition of oil shales constitutes inorganic matrix, bitumens, and kerogen.
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| 25. | Himmeto lu Oil Shale strata overlie a lignite zone and extend throughout the deposit.
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| 26. | It yields of shale oil per one ton of oil shale.
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| 27. | Known oil shales are predominantly aquatic ( marine, lacustrine ) origin.
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| 28. | The power plant would consume 10 million tons of oil shale per year.
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| 29. | It was evident that Stone's oil shale plant did not work.
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| 30. | Also 19 deposits of oil shales have been identified in Canada.
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