| 31. | It is primarily underlain by metamorphic rock such as gneiss, schist and marble.
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| 32. | The whole area is underlain by Twin Peaks.
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| 33. | The outwash plain is underlain by sand, with gravel inter-bedded throughout.
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| 34. | Most of this region is underlain by Proterozoic granite-gneiss-schist terrains.
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| 35. | It is conformable underlain by the Dunvegan Formation.
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| 36. | It then develops wide basin underlain by alluvium.
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| 37. | The habitat of the site is unimproved neutral grassland, underlain by magnesian limestone.
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| 38. | It is underlain by the Ba a Formation and overlain by the Krikov Formation.
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| 39. | The river valleys are underlain by limestone.
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| 40. | Geologically, Pinellas is underlain by a series of limestone formations, the Tampa limestone.
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