Mines with Dykes and Sills

15 linked mines · Geology: Dykes and Sills

Listed only where MineArchive's own research gives a reasonable evidential basis for the connection — not every mine where this geology might plausibly apply.

Mine	Region	Worked	Commodities	Connection
Auchenharvie Colliery	North Ayrshire	From 1678–Early 20th century	Coal	(notable incident) A heading driven through the Capon Craig Gaw, a whin dyke through the coal measures, let in the water that drowned nine people in 1895.
Barrasford Quarry	Northumberland	After 1859–Still active	Whinstone, Limestone	(surviving physical example) A working whinstone quarry on the Whin Sill in the North Tyne valley.
Blenkinsopp Colliery	Northumberland	By 1836–2002	Coal	(well documented example) A whin dyke stood between the mine and eight million tons of reserves, and the colliery closed in 2002 without driving through it.
Coronation Pit, Walbottle	Tyne and Wear	1820–20 August 1954	Coal	(historical documentary reference) Two basalt or whin dykes cross the Walbottle royalty.
Divethill Quarry	Northumberland	to Still active	Whinstone	(surviving physical example) A working whinstone quarry on the Great Whin Sill in Northumberland.
Egton Quarry	North Yorkshire	from Working by 1914	Whinstone	(well documented example) Quarried the Cleveland Dyke where it crosses the Esk valley near Grosmont.
Fairykirk Quarry	Fife	from Working by the mid-19th century	Whinstone	(well documented example) Quarried the quartz-dolerite of the Midland Valley Sill-complex.
Force Garth Quarry	County Durham	1932–Still active	Whinstone	(surviving physical example) Works the Great Whin Sill in Upper Teesdale for roadstone.
Minto Pit	Fife	1901 (sinking)–September 1967	Coal	(historical documentary reference) An intrusive whinstone sill 32 fathoms thick lay above the Five Foot coal.
Ratcheugh Quarry	Northumberland	By 1896–Still active	Whinstone	(surviving physical example) Works the Whin Sill where it crops out near Longhoughton.
Roachburn Colliery	Cumbria	1893 or 1895–1912	Coal	(historical documentary reference) A whin dyke eleven yards thick crossed the workings between Roachburn and Byron.
Swinburne Quarry	Northumberland	from 1940s	Whinstone	(surviving physical example) A whinstone quarry of about thirty hectares on the Great Whin Sill.
Tudhoe Whinstone Mine	County Durham	By 1882 (quarried earlier)–After 1890	Whinstone	(well documented example) Worked the Hett Dyke itself, first in an open trench along the outcrop and by 1882 underground from shafts.
Tursdale Colliery	County Durham	1854 (boring)–May 1966	Coal	(historical documentary reference) Part of the royalty lay north of the Hett Whin Dyke.
Willington Colliery	County Durham	1840–1932	Coal, Fireclay	(historical documentary reference) From 1905 the colliery returned whinstone, quarried from the Whin Sill, alongside its coal and clay.

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