| 1. | Borings were made for a detailed geological study of the route.
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| 2. | Researchers used soil borings to identify promising areas with undisturbed soil.
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| 3. | The worms left behind trace fossils like tubes and borings.
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| 4. | Some work began even as the core borings were continuing.
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| 5. | Some borings were made into the tunnel from above for examination by camera.
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| 6. | The 2005 test borings identified numerous huts or houses.
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| 7. | The wood found there frequently contains borings, which resemble those of termites.
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| 8. | Worms left behind trace fossils in the form of their borings and tubes.
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| 9. | He also agreed to make test borings at the site preferred by Russell.
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| 10. | Trial borings proved successful but the project was abandoned before work could properly begin.
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