Five well-contrasted types of scenery in Derbyshire are clearly traceable to as many varieties of rock; the bleak dry uplands of the north and east, with deep-cut ravines and swift clear streams, are due to the great mass of Mountain Limestone; round the limestone boundary are the valleys with soft outlines in the Pendleside Shales; these are succeeded by the rugged moorlands, covered with heather and peat, which are due to the Millstone Grit series; eastward lies the Derbyshire Coalfield with its gently moulded grasscovered hills; southward is the more level tract of red Triassic rocks.
Next in upward sequence is a thick mass of sandstones, grits and shales - the Millstone Grit series.
A small patch of Millstone Grit and Limestone occurs in the south of the county about Melbourne and Ticknall.
The Coal Measures repose upon the Millstone Grit; the largest area of these rocks lies on the east, where they are conterminous with the coalfields of Yorkshire and Nottingham.
Good sandstone is obtained from the Millstone Grit at Stancliffe, Tansley and Whatstandwell.
The Coal Measures repose upon the Millstone Grit; the largest area of these rocks lieson the east, where they are conterminous with the coalfields of Yorkshire and Nottingham.
Here, while storming the citadel, he was struck on the head by a fragment of a millstone thrown from the wall by a woman.
Millstone Grit >>
The mineral wealth of Saxe-Coburg-Gotha is insignificant, small quantities of coal, lignite, ironstone and millstone being annually raised.
FREDERICK THEODORE FRELINGHUYSEN (1817-1885), American lawyer and statesman, of Dutch descent, was born at Millstone, New Jersey, on the 4th of August 1817.
The next member of the series is a mass of coarse sandstones, with some slates and a few thin coals, known as the Millstone Grit, which is about equally developed in England and in Scotland.
Gypsum, millstone and paving-stone are quarried in the vicinity.
The Pottsville formation is chiefly clastic, and corresponds roughly to the Millstone Grit of England.
The Coal-Measures and Millstone Grit are usually grouped together in the Upper Carboniferous, the Carboniferous Limestone series constituting the Lower Carboniferous.
I Upper black shales with thin limestones (Pendleside group) connecting this series with the Millstone grit above.
The Millstone Grit contains fragments of chert which can only have come from the waste of the earlier limestones.
The southern edge of the county is formed by the scarps and moorlands of the Carboniferous Limestone and Millstone Grit (both of which form also the outlier of Pen-ceryg-calch north of Crickhowell), while the lowest beds of the Coal Measures of the South Wales coalfield are reached in the Tawe and Neath valleys (where the beds are much folded) and near Tredegar and Brynmawr.
In the north-western Highlands masses of white quartzite, resting unconformably in Torridonian sandstone, run from Loch Eriboll to Skye, forming in places great conical hills and some L J Recent & Pleistocene F l Cretaceous Jurassic Trias Granite & Acid Intrusive Rocks' Permian Coal Measures, Carboniferous Millstone Grit Series Lower Carboniferous Old Red Sandstone & Devonian Silurian Ordovician Cambrian Scale, z:4,600.000 English Miles o xxxx xzxx xxxx Metamorphic Group Volcanic Rocks ® Basic Intrusive Rocks 'I +++ +++ ob.o times capping isolated mountains of red Torridon sandstone.
In the basins of the Forth and Clyde the following subdivisions are well marked: (5) Upper Red Sandstone series (red and grey sandstones, fireclays, shales, marls); (4) Coal Measures (white and grey sandstones, dark shales, fireclays, coal seams, ironstones); (3) Millstone Grit (massive sandstones and grits, with fireclays, thin limestones and coal); (2) Carboniferous Limestone series - (c) sandstones and shales, with three or more seams of limestone; (b) sandstones, shales, coals and ironstones, but with no limestone bands; (a) sandstones, shales, fireclays, coals and iron XXIV.
There was great volcanic activity during the deposition of the Calciferous Sandstone, Carboniferous Limestone and Millstone Grit series.
They have olive presses and flour mills, and their own millstone quarries, even travelling into make lime, tiles, woodwork for the houses, domestic utensils and agricultural implements.
These may represent partly the Millstone Grit and partly the Coal Measures.
The second is represented by a thin lava, associated with the Upper Limestone group of the Carboniferous Limestone series, and the highest is found in Ben Lister Glen intercalated with the Upper Carboniferous strata, and may be the equivalent of the volcanic series which, in Ayrshire, occupies the position of the Millstone Grit.
There are quarries of millstone in the vicinity.
The whole region may be looked upon as formed by an arch or anticline of Carboniferous strata, the axis of which runs north and south; the centre has been worn away by erosion, so that the Coal Measures have been removed, and the underlying Millstone Grit and Carboniferous Limestone exposed to the influences which form scenery.
The belt of Millstone Grit south of the Aire, lying between the great coal-fields of the West Riding and Lancashire, has a lower elevation, and forms grassy uplands and dales; but farther south, the finest scenery of the whole region occurs in the limestones of Derbyshire, in which the range terminates.
The Brecon Beacons of Old Red Sandstone are the highest (2907 ft.), but the Black Mountain bears a number of picturesque summits carved out of Millstone Grit and Carboniferous Limestone, which rise frequently over 2000 ft.
The great coal-field on the south is a perfect example of a synclinal basin, the Millstone Grit and Carboniferous Limestone which underlie the Coal Measures appearing all round the margin.
Trios Permian Coal Measures, Carboniferous Millstone Grit Series & Culm Lower Carboniferous r --????
This condition led up to the Carboniferous period, which began with fairly open sea over the south and north of England, but in the centre there rose an elevated land mass from which much of the Millstone Grit was derived; other land lay towards the north.
The beds above the limestone are shales and sandstones, sometimes reaching the true Coal-Measures, but rarely younger than the English Millstone Grit.
Some coals occur in the Millstone Grit horizons.
Carboniferous one at Ballycastle, the high outliers of Millstone Grit and Coal-Measures round Lough Allen, and the Dungannon and Coalisland field in county Tyrone.
The earth-wrinkles of this epoch were turned into a north-easterly direction by the pre-existing Leinster Chain, and the trend of the anticlinal from Limerick to the Slieve' Bloom Mountains, and that of the synclinal of Millstone Grit and CoalMeasures from Cashel through the Leinster coalfield, bear witness to the resistance of this granite mass.