Page:A Treatise on Geology, volume 2.djvu/167

class II.—Before the Deposition of the Lias.
Strata disturbed	In What manner.		Localities		Igneous Rocks in connection.
a. Affecting the old red sandstone and carboniferous generally, but not the magnesian limestone.	By anticlinal and synclinals, and great faults.	$\left\{{\begin{matrix}\ \\\\\\\\\\\\\\\ \end{matrix}}\right.$	South Wales.	$\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}$	None
			Woolhope, Malvern Hills.
			Abberford, in Yorkshire		None
			Quarrington, in Durham.		Basaltic dyke from Tuesdale
			Manchester
			Somersetshire coalfields.		?
			South Wales	$\left\{{\begin{matrix}\ \\\ \end{matrix}}\right.$	Feldspathic, epidotic, and greenstone trap
			Caradoc and Wrekin
b. Affecting the Magnesian limestone, or its equivalent	By great faults	$\left\{{\begin{matrix}\ \\\\\\\\\\\\\ \end{matrix}}\right.$	The Penine Fault (Vol. I. p. 194.)		Granitic porphyry (Dufton Pike)
			The 9 fathom dyke (Vol. I. p. 194.)		None
			The Craven fault (Vol. I. p. 194.)
			In the Coalbrookdale coalfield.		?
			South Wales.
c. Affecting beds of the new red sandstone formation	Fault or small anticlinal	$\left.{\begin{matrix}\ \\\\\\\ \end{matrix}}\right\}$	Acton Reynolds, Shropshire.		Dyke of greenstone from the Breidddyn Hills.
			Island of Arran		Dykes of porphyry, claystone, hornstone, pitchstone, basalt, greenstone, &c.
	Great uplifting.		Arran.		Granite of Goatfield, &c.