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COAL.                                  81
XX, LUKANPUR.*
This field lies to the south of the Bisrampur area, from which it is separated by a fault and a belt of Talchirs, with inliers of metamorphic and sub-meta-morphic rocks. Its total extent has not yet been ascertained, but it is probable that it is continuous with a large area of coal-measure rocks, believed to exist far to the westward.
Several seams of coal have been discovered, one of which is five-and-a-half feet thick and contains good coal. The rocks belong to the Barakar and Talchir groups.
XXI. RAMPUR.f
This area adjoins the last on the north, and it is probable is more or less connected with that which follows, but it is partly situated in a different catch­ment area near the sources of the Rer river, a tributary of the Sone, while the field about to be described is wholly within the limits of the Mahanadi basin. The rocks of this portion consist of Mahadevas, Barakars, and Talchirs. No good coal has been observed yet. The most remarkable seam is situate at the base of the massive square block of Mahadevas known as the Ramgurh Hill.J Above it issues a perennial fountain of water, which, with some other peculiarities, have caused the spot to be regarded as one of great sanctity by the natives.
* MS. Notes, " Manual," vol. i. p. 206. + Ibid., vol. i. p. 207. 1 "Jungle Life in India," p. 324.
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