73:. Limestone beds are developed at various levels throughout the sequence, each with a different character, which led to them being quarried for specific uses. Towards the top of the Lulworth Formation is the 'New Vein'. In the lower part of the Durlston Formation are the 'Downs vein, 'Freestone Vein' and the 'Laning Vein'. Towards the top of the Durlston are the 'Burr' (or Broken Shell Limestone) with up to three beds of the 'Purbeck Marble' above that.
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Initially the stone was taken from shallow opencast workings but, as these became worked out, the quarrymen began to access the stone using shafts, up to 125 ft below the surface. These underground workings, the oldest of which dates from about 1650, were known as
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129:. The dark colour of the Purbeck Marble meant that it was used for its decorative quality in churches and cathedrals across England, particularly for items such as fonts, tombs, flooring and shafts.
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Purbeck stone has been widely used as a building stone particularly in the
Purbeck area. The 'Burr' and the 'Freestone Vein' were used as
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that were deposited in a shallow freshwater to brackish lagoonal setting. It ranges in age from
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The
Purbeck Group rocks are found beneath superficial deposits from
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and dips moderately steeply to the north along its whole outcrop.
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A 1.5-tonne block of
Purbeck stone was set at the entrance to
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in southern
England. The best known variety of this stone is
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166:"Crack Lane quarry, Langton Matravers. SY998.792"
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22:refers to building stone taken from a series of
223:"Quarr Houses on the Isle of Purbeck, Dorset"
89:in the east. The sequence is affected by the
49:. The stone has been quarried since at least
189:"The Strategy for Purbeck Stone Extraction"
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168:. Dorset Important Geological Sites Group
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195:. Dorset County Council. Archived from
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61:The Purbeck Group is a sequence of
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140:since 2010 in an effort to deter
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187:Dorset County Council (2010).
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236:(2): 155–162. Archived from
193:Draft Minerals Core Strategy
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105:Entrance to a Quarry near
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53:up to the present day.
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221:Phillips, J. (1996).
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16:Limestone from Dorset
199:on 14 October 2011
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26:beds found in the
274:Geology of Dorset
91:Purbeck Monocline
63:sedimentary rocks
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243:on 28 March 2012
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85:in the west, to
32:Lower Cretaceous
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279:Isle of Purbeck
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39:Isle of Purbeck
37:, found on the
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269:Building stone
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230:Mining History
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83:Worbarrow Tout
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47:Purbeck Marble
28:Upper Jurassic
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87:Peveril Point
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35:Purbeck Group
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20:Purbeck stone
245:. Retrieved
238:the original
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201:. Retrieved
197:the original
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170:. Retrieved
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247:10 November
203:11 November
172:11 November
51:Roman times
263:Categories
148:References
134:Shitterton
97:Extraction
77:Occurrence
71:Berriasian
284:Limestone
67:Tithonian
24:limestone
107:Swanage
57:Geology
164:DIGS.
138:Dorset
127:ashlar
115:Quarrs
43:Dorset
241:(PDF)
226:(PDF)
142:theft
249:2012
205:2012
174:2012
121:Use
69:to
30:to
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234:13
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