| 1. | A lot of what we do was developed in Precambrian seas,
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| 2. | The youngest of the Precambrian rocks are the South Charnwood Diorites.
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| 3. | Vertical cliffs along the coastline are made up of Precambrian dolomite.
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| 4. | The bedrock is mainly of Precambrian and Cambro-Silurian origin.
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| 5. | Black and gray shales of the Precambrian era underlie the town.
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| 6. | This third event folded the layered Precambrian and Cambrian sedimentary rocks.
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| 7. | Hundreds of millions of years separate this period from the Precambrian.
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| 8. | This was deposited as limestone in a Precambrian oceanic rift trough.
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| 9. | The new rift structure may follow the Precambrian and Paleozoic faults.
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| 10. | Precambrian life forms were found, and rock engravings were reported.
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