It was a royal preserve, and remains for the most part an uncultivated waste, but it is also a rich coalfield, and there are mines in every direction.
Only in the Urals, the Caucasus, the Timan Mountains, the region of the Donets coalfield, and the Kielce Hills is there any sign of the great folding from which nearly the whole of the rest of Europe has suffered at one time or another.
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.
A small tract, part of the Leicestershire coalfield, lies in the south-east corner, and in the north-west corner a portion of the Lancashire coalfield appears about New Mills and Whaley Bridge.
The coalfield extends northwestward towards Bristol, and is of great importance to the manufactures of that city.
The chief coalfield of Japan.
To the transactions of that society he contributed papers on the Wrekin and the Shropshire coalfield, &c. Later he became secretary of the Society of Arts, and in 1841 treasurer of the Chemical Society.
In the northern part of the coalfield in Cannock Chase.
In France the principal coalfield is that in the north-east, already mentioned; another of importance is the central (Le Creusot, &c.) and a third, the southern, about the lower course of the Rhone.
There were 39,4 8 3, 8 44, 000 tons, together with 854,608,307 tons in that part of the Cumberland coalfield beyond 5 m.
Of high-water mark, and 383,024,000 tons in the South Wales coalfield under the sea in St Bride's Bay and part of Carmarthen Bay.
T%/ / Reference ' -u, E??%/%?'/,??/FA // %/////A %/// dangerous, owing to the great height of the excavations, and fatal accidents from falls of roof are in consequence more common in South Staffordshire than in any other coalfield in this country.
The Rhenish-Westphalian coalfield was fully described in all details, geological, technical and economic, in a work called Die Entwickelung des niederrheinisch-westfcilischen Steinkohlen Bergbaues in der zweiten Hcilfte des 19 ten Jahrhunderts (also known by the short title of Sammelwerk) in twelve quarto volumes, issued under the auspices of the Westphalian Coal Trade Syndicate (Berlin, 1902-1905).
The town lies on the south-west Yorkshire coalfield, and there are a number of collieries in the district.
From Madras, where one branch line comes down from the Warangal coalfield in the Nizam's Dominions, and another from Bellary on the Southern Mahratta line.
Along the northern margin lies the intensely folded belt which constitutes the coalfield of Namur, and, beneath the overlying Mesozoic beds, is continued to the Boulonnais, Dover and beyond.
The entire eastern quarter of the state, coterminous with the Eastern Kentucky coalfield, is commonly known as the region of the " mountains," but with the exception of the narrow area just described it properly belongs to the Alleghany Plateau Province.
In 1902 the amount was about equally divided between the eastern coalfield, which is for the most part in Greenup, Boyd, Carter, Lawrence, Johnson, Lee, Breathitt, Rockcastle, Pulaski, Laurel, Knox, Bell and Whitley counties, and has an area of about 11,180 sq.
M., and the western coalfield, which is in Henderson, Union, Webster, Daviess, Hancock, McLean, Ohio, Hopkins, Butler, Muhlenberg and Christian counties, and has an area of 5800 sq.
The largest coal-producing counties in 1907 were Hopkins (2,064,154 short tons) and Muhlenberg (1,882,913 short tons) in the western coalfield, and Bell (1,437,886 short tons) and Whitley (762,923 short tons) in the south-western part of the eastern coalfield.
There I d is also a coalfield in Nova Scotia and New Brunswick, bryan.
Certain British coalfields have yielded good specimens: Archaeoptilus, from the Derbyshire coalfield, had a spread of wing extending to more than 14 in.; some specimens (Brodia) still exhibit traces of brilliant wing colours.
North and east of Helsingborg lies the only coalfield in Sweden, extending into the lofty Kullen peninsula, which forms the northern part of the east shore of the Sound.
The North German plain has, in the east, a canal by which Russian grain is conveyed to Konigsberg, joining the Pregel to the Memel, and the upper Silesian coalfield is in communication with the Oder by means of the Klodnitz canal.
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.
On its western flank lies a coalfield, with Coalville and other mining towns, and granite and honestones are worked.
Pittsburg is situated near the lead and zinc region of south-east Kansas and south-west Missouri, is in the midst of a large and rich bituminous coalfield, and lies near natural gas and oil fields.
But with the systematic development of the vast mineral resources of the South Wales coalfield, the population of Glamorganshire has increased at a more rapid rate than that of any other county of the United Kingdom, so that at present this county contains about half the population of all Wales.
The great South Wales coalfield, one of the largest in the kingdom, covers the greater part of Monmouthshire and Glamorganshire, the south-eastern corner of Carmarthenshire, and a small portion of south Pembrokeshire, and the quality of its coal is especially suitable for smelting purposes and for use in steamships.
Meanwhile in 1798 the whole coalfield of the Swansea Valley was connected with the port by a canal 162 m.
This coalfield, ministering to the multifarious metal manufactures of Birmingham, constitutes the centre of the Midlands.
In the Rajmahal Hills basaltic lava flows are interbedded with the Gondwana deposits, and in the Karharbari coalfield the Gondwana beds are traversed by dikes of mica-peridotite and basalt, which are supposed to be of the same age as the Rajmahal lavas.
The small coalfield of Karharbari with an area of only i i sq.
A chord line passes by the coalfield of Raniganj, which enables this great railway to be worked more economically than any other in India.
In the vicinity of the city there are salt wells, and Saginaw county is the most productive coalfield in the state - in 1907 its output was 1,047, 9 2 7 tons, more than half the total for the state.
Lignitic dial was discovered on or near the coast of Coos Bay as early as 1855, and this is still the only productive coalfield within the state, although there are outcroppings of the mineral all along the Coast Range N.
Bellaire is the shipping centre of the Belmont county coalfield which in 1907 produced 1 9.3% of the total output of coal for the state.