| 1. | Public relations staffers intercepted Shales's calls to other executives.
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| 2. | It is embedded in shale with a pair of fish skeletons.
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| 3. | There's lots of shale in that part of Colorado.
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| 4. | Chennai's soil is mostly clay, shale and sandstone.
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| 5. | The western valley is floored with more recent shale and sandstone.
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| 6. | It is drained by two forks of the natural shale gas.
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| 7. | Williamsport has become a key area in the Marcellus Shale drilling.
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| 8. | It is the most common animal represented in the Burgess Shale.
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| 9. | The Burgess Shale was discovered in 1909 by Charles Doolittle Walcott.
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| 10. | The trail has shale and rocks which make hiking very difficult.
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