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76
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COAL.
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The following is an assay of a sample of the better class of coals in these fields :—
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The
estimated amounts of coal are, for the larger field (North Karanpura),
8,750,000,000 tons, the estimated total thickness of seams being 38
feet. In the South Karanpura field the estimated amount is 75,000,000
tons, the thickness being 70 feet.
The
situation of these fields in a deep valley surÂrounded by hills,
renders it improbable that this vast amount of coal will ever become
available for economic purposes.
XI. ChopjL*
This
is a small field of less than one square mile in extent. The chief
point of interest about it is its position, which is on the Hazaribagh
plateau, at an elevation of about 2,000 feet above the sea, or nearly
1,000 above the nearest fields in the valley of the Damuda.
The groups represented are the Baak ar and Talchir.
There is only one seam of coal, and it is of poor quality.
* "Mem. Geol. Surv. India," vol. viii. "Manual," p. 196.
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