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overlie the sands of the Poole
Formation, but their soils are likewise poor and acidic. Erosive forces have resulted in an undulating landscape with considerable local variation from narrow, steep-sided valleys and
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The Poole Basin coincides with the area of the "Tertiary Beds" (beige) in this geological map of Dorset
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lying on acidic soils. Between the chalk perimeter and the central heaths is a belt where the
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surface, giving rise to richer, albeit still acidic, soils. Deposits of plateau and valley
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is a geological formation that forms the western part of the much larger
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at www.naturalareas.naturalengland.org.uk. Accessed on 4 Sep 2013
90:(193 m), the highest Tertiary hill in England, capped with
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The nature conservation interest of the
Natural Area
57:. The most extensive deposits here are those of the
86:to areas of flat terrain. The highest point is
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65:. At one time the whole area was almost all
45:The rim and bed of the basin are formed by
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33:from which it is separated by the
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53:sands and clays underlying the
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49:, within which lie the
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88:Creech Barrow Hill
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183:Geology of Dorset
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114:Ordnance Survey
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59:Poole Formation
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31:Hampshire Basin
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55:Dorset Heaths
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159:50.7°N 1.9°W
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75:London Clays
71:Reading Beds
63:Bagshot Beds
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84:escarpments
27:Poole Basin
164:50.7; -1.9
118:Landranger
101:References
35:River Avon
116:1:50,000
95:limestone
67:heathland
177:Category
51:Tertiary
147:50°42′N
79:gravels
41:Geology
150:1°54′W
92:Eocene
47:chalk
73:and
61:or
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