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IV.—On Explosive Slickensides

Published online by Cambridge University Press:  01 May 2009

Aubrey Strahan
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Extract

During a recent examination of the lead-mines of Derbyshire, I was interested in some accounts of explosions which had taken place, which were not due either to any material used by the workmen or to fire-damp. Though at first inclined to believe that the accounts were exaggerated, I soon found that not only was the evidence of such explosions having constituted a real danger to the men overwhelming, but that accidents are still liable to occur from this cause. The explosions are connected with the structure known as slickenside in the veins.

Type
Original Articles
Information
Geological Magazine , Volume 4 , Issue 9 , September 1887 , pp. 400 - 408
Copyright
Copyright © Cambridge University Press 1887

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References

page 400 note 1 Wherever Dr. Wright has mentioned the zone of Harp, serpentinum, it must prohably be taken to indicate the zone of Am. falcifer.

page 401 note 1 The History of the Mineral Waters of Derbyshire, Lincolnshire, and Yorkshire, by Short, Thomas, M.D., 4to., London, 1734, p. 96.Google Scholar

page 401 note 2 A View of the Present State of Derbyshire, 1789, vol. i. p. 195.Google Scholar

page 401 note 3 An Inquiry into the Original State and Formation of the Earth, by Whitehurst, John, 3rd edition, 1792, London, p. 218, et seq., plate i.Google Scholar

page 402 note 1 Slappits, fragments of the minerals burst out of the vein.

page 402 note 2 Stemples, joists laid across fissures, when the minerals are cut out, by way of making a floor, on which rubbish is deposited, to save the expense of raising it to the surface.

page 402 note 3 Forefield, that part of the vein under workmanship.

page 403 note 1 Kebble, a white opaque spar, calcareous, but not apt to break into rhomboidal forms.

page 403 note 2 The Mineralogy of Derbyshire, by Mawe, John, 8vo. London, 1802, p. 48.Google Scholar

page 403 note 3 General View of the Agriculture and Minerals of Derbyshire, by Farey, John, 8vo. London, 1811, vol. i. p. 250.Google Scholar

page 403 note 4 lb. p. 367.

page 404 note 1 An Account of the Explosion of Slickensides, by Watson, W., Edin. Journ. Sci. new ser. vol. ii. p. 186, 1829.Google Scholar

page 404 note 2 The History and Antiquities of Eyam; with a minute account of the Great Plague, which desolated that village in the year 1666, by Wood, William, 8vo., London and Derby, 2nd ed. 1852Google Scholar; 3rd ed. date not stated.

page 404 note 3 The Gem of the Peak; or, Matlock Bath and its Ticinity, etc., by Adam, W., London, 1845, p. 419, footnote.Google Scholar

page 404 note 4 Mining Almanack for 1850, by English, W., London, p. 220.Google Scholar

page 405 note 1 In a letter dated 22nd October, 1886.

page 405 note 2 In a letter dated 23rd November, 1886.

page 405 note 3 In a letter dated 15th October, 1886.

page 406 note 1 The Geological Agency of Lateral Pressure exhibited by certain Movements of Rocks, Proc. Boston Soc. Nat. Hist. vol. xviii. p. 272 (1876); see also ib. vol. xiv. and Proc. American Assoc, for the Advancement of Science, vol. viii. p. 285, and vol. xxii. part ii.Google Scholar

page 406 note 2 The Miner's Dictionary, by Hooson, William, 8vo. Wrexham, 1747 (under the head Knocker).Google Scholar