Page:Quarterly Journal of the Geological Society of London, vol. 33.djvu/757

Table III.—Representative Carboniferous Formations.

	Stages.	England and Wales.		Ireland		Scotland.	Continental.	Conditions of Deposition.
		North.	South.	North.	South.	Central.	Belgium and Germany.
Upper. $\scriptstyle {\overbrace {\quad \quad \quad \quad \quad \quad \quad \quad } }$	G.	Upper Coal-measures of Manchester, &c., Staf- fordshire, Denbigh- shire.	Generally absent (through denudation).	Absent (through denu- dation).	Absent (through denu- dation).	Upper red sandstones of Bothwell &c. Ayrshire beds with Spirobis Limestone.	Possibly present in the Belgian and Saarbrück Coal- fields.	Essentially estuarine and lacustrine, with intrusions of the sea at long intervals.
	F.	Middle Coal-measures with thick coal-seams &c., Lancashire, York- shire, Derbyshire, &c.	Middle Coal-measure of South Wales and Somersetshire, &c.	Coal-Island Coal-field, co. Tyrone.	Leinster Coal-field from "the Jarrow Coal" upwards.	"Flat-coal" series or "Upper Coal series" of Scotland with thick coals.	Mail Coal-measures of Belgium, Saar- brück, Westphalia, Saxony, and Silesia, &c.
Middle. $\scriptstyle {\overbrace {\quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad } }$	E.	"Gannister Beds," or Lower Coal-measures.	Lower Coal-measures, with ironstones and thin coals.	Lower Coal-measures of Drumglas (Tyrone), coal-fields of Lough Allen (co. Leitrim).	Lower Coal-measures of Leinster, Modu- bagh, Tolteron, Skelhann and Slieve- ardagh, &c.	Beds on the horizon of "the Slaty-band" ironstone?	Schistes de Lens, Auchy-au-Bois, Chokier, Bottom shales of the Coal- measures of Silesia, &c.	Essentially marine rarely estuarine. (Sea shallower than in Stage B.)
	D.	Millstone Grit series, Leicestershire, York- shire, Derbyshire, &c.	Millstone Grit, or "Farewell Rock."	Millstone Grit of Fer- managh, Sligo, &c. (Cuilcagh).	Flagstone series of Curlow, Kilkenny, Clare, &c.	"Moonstone rock" and Roslin sandstone.	Generally absent in Belgium. Flötz- leerer Sundstein of Germany.
	C.	Yoredale series, or Up- per Limestone shale. "Upper Bernician beds" (Lebour).	Upper Limestone shale (thin).	Ironstone shales of Lough Allen, also of Drumglas (co. Tyrone).	"Shale series" of Cur- low, Kilkenny, Clare, &c.	"Upper Limestone series" resting on "Lower coal and ironstone series"?	Calcaire de Visé, Bruchberg crinoi- dal sandstone (Harz)?
Lower. $\scriptstyle {\overbrace {\quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad } }$	B.	"Mountain Limestone" of Derbyshire, "Scaur or Scar" Limestone (Sedgwick).	Carboniferous Limestone of Cheddar, the Wye, Avon, and S. Wales, &c.	Carboniferous Limestone in three divisions, Ballycastle Coal-field, co. Antrim (in part).	Carboniferous Lime- stone, in three di- visions.	"Lower Limestone series" of Gilmer- ton, Roman camp, &c.	Carboniferous Lime- stone of Belgium (Calc. de Dinant, Calc. de Tournai), France, Germany, Russia, &c.	Essentially marine, and deep-sea beds (except occasionally in Scotland, where lacustrine or esta- rine beds occur).
	A.	"Tuedian Group" (Tate), often absent in N. Lancashire &c.	Lower Limestone shale (thin).	Calciferous Sandstone series or Lower Car- boniferous Grits.	Lower Carboniferous slate (in part) with Cambota grits.	Carboniferous Sandstone series in two groups	Psammites du Con- dros, "Schistes de Tournai," and "Kiesel-Schiefer," &c. "Jungere Granwacke" of the Vosges and of the Schwarzwald.