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A large mineralized cavity in a tholeiite dike in Northumberland

Published online by Cambridge University Press:  14 March 2018

B. A. O. Randall
B. A. O. Randall*
Affiliation:
Department of Geology, King's College, Newcastle-on-Tyne, University of Durham
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Extract

Towards the end of 1952 mining operations at West Sleekburn colliery, Bedlington, Northumberland, involved the driving of a drift through a 'whin' dike. In the process of doing so an unusual, large cavity was penetrated. When the cavity was first entered, by the manager and under-manager, it was found to be water-free but full of 'gas', which rendered them almost unconscious. Their exploration was therefore delayed until the gas was removed by pumping. Unfortunately no sample of the gas was collected, but it is thought to have been 'fire damp'. After examination the cavity repeatedly filled with gas, leading to a suspicion of a hidden extension to the cavity, under the roadway.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 30 , Issue 223 , December 1953 , pp. 246 - 253
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1953

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References

Page 246 Note 1 Holmes, A. and Harwood, H. F., The tholeiite dikes of the north of England. Min. Nag., 1929, vol. 22, pp. 1-52.Google Scholar

Page 247 Note 1 Marshall, C. E., The alteration of coal seams by the intrusion of some of the igneous dykes in the Northumberland and Durham coalfield. Trans. Inst. Mining Engineers, 1936, vol. 91, pp. 233-260.Google Scholar

Page 249 Note 1 Bannister, F. A., The distinction of pyrite and marcasite in nodular growths. Min. Mag., 1932, vol. 23, pp. 179-187.CrossRefGoogle Scholar

Page 251 Note 1 Smythe, J. A. and Dunham, K. C., Ankerites and chalybites in the northern Pennine orefield and the north-east coalfield. Min. Mag., 1947, vol. 28, pp. 53-73.CrossRefGoogle Scholar

Page 253 Note 1 Allen, E. J. et al., Amer. Journ. Sci., 1912, ser. 4, vol. 23, p. 169;CrossRefGoogle Scholar 1914, ser. 4, vol. 28, p. 393.