| 11. | The Gauja river valley contains distinctive geological formations, forests and meadow plants.
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| 12. | Limestone, sandstone, slate, gneiss and granite constitute the principal geological formations.
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| 13. | Their ultimate origin ( from biological sources or geological formation ) is unclear.
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| 14. | Further he notes the relation to the physics of geological formations.
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| 15. | The species'tragedy is its occurrence on geological formations rich in platinum.
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| 16. | This geological formation is a strong barrier to movement in most tropical seabirds.
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| 17. | The main geological formations distributed across the town and its surroundings are turbidites.
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| 18. | The geological formation of Guinean-Liberian belt is Precambrian and paleozolic rocks.
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| 19. | This plant is restricted to the Bishop Conglomerate, a geological formation.
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| 20. | It is the oldest Cretaceous geological formation that crops out in the Weald.
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