| 41. | The former stopping service ( which called at Seaburn, East Boldon and Brockley Whins ) is now provided only by the Metro.
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| 42. | The crags are an outcropping of the Whin Sill, an igneous rock, dolerite, associated with magma flows from ancient volcanos.
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| 43. | The land on which Spennymoor now stands was once a vast expanse of moorland covered with thorn and whin bushes ( Spenny Moor ).
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| 44. | An area known to have been mined is shown as extending NNW towards Whins of Milton village and must have passed under the burn.
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| 45. | Studies of the petrology of the dolerites of the Whin Sill complex have revealed significant differences between the Little Whin and the Great Whin.
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| 46. | Studies of the petrology of the dolerites of the Whin Sill complex have revealed significant differences between the Little Whin and the Great Whin.
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| 47. | Studies of the petrology of the dolerites of the Whin Sill complex have revealed significant differences between the Little Whin and the Great Whin.
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| 48. | The original 1839 Brockley Whins station, on the Brandling Junction Railway, only had a platform on the down line ( towards Newcastle ).
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| 49. | The site is an outcropping of the Whin Sill which gives rise to a distinctive flora particular to the thing soil conditions on this bedrock.
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| 50. | Geologically, Illgill Head and Whin Rigg are part of the Borrowdale Volcanic Group, typical for the southern-western area of the Lake District.
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