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COAL. 87
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The
existence of coal measures under a small tract of Kamthi beds, 5 to 6
miles square, has been proved by boring. Three seams of coal have been
ascertained to exist, and these have a maximum total thickness of 38
feet. The coal is similar in character to that of Warora.
XXVIII. Wardha or Chanda, &c.*
This
coal field constitutes the northernmost extremity of an immense tract
of Gondwana rocks, which extend for about 285 miles from north-west to
south-east in the valleys of the Wardah, Pranhita, and Godaveri basins.
The groups of rocks exposed are as follows :—
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Any
attempt to give an idea of the distribution of coal measures throughout
this area, without employing a mass of detail unsuited to this Paper,
would certainly fail. I shall therefore confine myself to quoting Mr.
Hughes' estimate of the amounts of coal, in several of the particular
tracts, where its existence has been proved by actual outcrops or by
borings :—
* Hughes, loc. ctt., pp. 1-145.
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