The Bunter in France is reduced to the variegated sandstone, except
around the Vosges, in the Var, and the Black Forest, where it is
accompanied by the Muschelkalk. In Germany it furnishes building-stone
of excellent quality; many great edifices, in particular the cathedrals,
so much admired on the Rhine--such, for example, as those of Strasbourg
and Fribourg--are constructed of this stone, the sombre tints of which
singularly relieve the grandeur and majesty of the Gothic architecture.
Whole cities in Germany are built of the brownish-red stones drawn from
its mottled sandstone quarries. In England, in Scotland, and in Ireland
this formation extends from north to south through the whole length of
the country. “This old land,” says Professor Ramsay,[54] “consisted in
great part of what we now know as Wales, and the adjacent counties of
Hereford, Monmouth, and Shropshire; of part of Devon and Cornwall,
Cumberland, the Pennine chain, and all the mountainous parts of
Scotland. Around old Wales, and part of Cumberland, and probably all
round and over great part of Devon and Cornwall, the New Red Sandstone
was deposited. Part, at least, of this oldest of the Secondary rocks was
formed of the material of the older Palæozoic strata, that had then
risen above the surface of the water. The New Red Sandstone series
consists in its lower members of beds of red sandstone and conglomerate,
more than 1,000 feet thick, and above them are placed red and green
marls, chiefly red, which in Germany are called the Keuper strata, and
in England the New Red Marl. These formations range from the mouth of
the Mersey, round the borders of Wales, to the estuary of the Severn,
eastwards into Warwickshire, and thence northwards into Yorkshire and
Northumberland, along the eastern border of the Magnesian Limestone.
They also form the bottom of the valley of the Eden, and skirt
Cumberland on the west; in the centre of England the unequal hardness of
its sub-divisions sometimes giving rise to minor escarpments,
overlooking plains and undulating grounds of softer strata.”
[54] “The Physical Geography and Geology of Great Britain,” 2nd ed.,
p. 60.
“Different members of the group rest in England, in some region or
other,” says Lyell, “on almost every principal member of the Palæozoic
series, on Cambrian, Silurian, Devonian, Carboniferous, and Permian
rocks; and there is evidence everywhere of disturbance, contortion,
partial upheaval into land, and vast denudations which the older rocks
underwent before and during the deposition of the successive strata of
the New Red Sandstone group.” (“Elements of Geology,” p. 439.)
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