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

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646
EDWARD HULL ON THE CLASSIFICATION OF THE CARBONIFEROUS SERIES.
647
Table III.—Representative Carboniferous Formations.
Stages. England and Wales. Ireland Scotland. Continental. Conditions of
Deposition.
North. South. North. South. Central. Belgium and Germany.
Upper.
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.
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.
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.