Noun:

நிலக்கரிச்சுரங்கப்,

coalfields தமிழ் அர்த்தத்தின் உதாரணம்:

None

coalfields's Usage Examples:

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.

shows the quantity of coal still remaining unworked in the different coalfields at depths not exceeding 4000 f t.

Upper: Red and grey sandstones, marls and clays with occasional breccias, thin coals and limestones with Spirorbis, workable coals in the South Wales, Coal Bristol, Somerset and Forest of Dean coalfields.

distant, and in the vicinity are three great coalfields, the Warrior, the Coosa and the Cahaba.

to the Dundee coalfields, Vryheid (59 m.

In the extreme north-east are found the oldest rocks in the state - lower Devonian (the New Scotland beds of New York) and, not so old, an extension of the Lower Carboniferous which underlies the Warrior coalfields of Alabama, and which consists of cherts, limestones, sandstones and shales, with a depth of 800 to 900 ft.

Its cloth and silk manufactures are important, and owing to the opening up of extensive coalfields in the district almost every branch of iron industry is carried on.

Going northward the beds of limestone diminish in thickness, with a proportional increase in the intercalated sandstones and shales, until in Scotland they are entirely subordinate to a mass of coal-bearing strata, which forms the most productive members of the Scotch coalfields.

The present annual output is in round numbers 230 million tons, and the calculated available resources in the proved coalfields are in round numbers 100,000 million tons, exclusive of the 40,000 million tons in the unproved coalfields, which we have thought best to regard only as probable or speculative.

The Polish coalfields belong to another Carboniferous area of deposit, which extended over Silesia.

Several smaller coalfields on the slopes of the Urals and on the Timan ridge may be added to the above.

Synonyms:

field,

Antonyms:

None