Portal logo
80                                   COAL.
fectly known; it is probable that nearly all the re­cognized groups of the Gondwana formation are represented within the area. Coal occurs, but little information has as yet been ascertained regarding its average quality and total amount.
XVIII.     Jhilmilli.*
This is a small area of about 35 square miles, which has not yet been fully examined. Besides Talchir and Barakar rocks, one or more of the younger groups are represented.
Coal seams of some promise have been observed in the Barakars. Traces of coaly matter, forming a seam of six inches, were also discovered in the Talchirs, a quite exceptional circumstance.
XIX.     BlSRAMPUR.f
This field occupies the central basin of Sirguja at an elevation of about 1,800 feet above the sea. Its area is about 400 square miles. The formations met with are:—
Mahadeva........1,000 feet.
Barakar......... 500 „
Talchir......... 200 „
A large number of coal seams has been discovered, some containing good coal, but, so far as at present known, they are not of great promise. This is of less importance, since the locality is so landlocked that it is never likely to be the scene of mining operations.
* "Manual," vol. i. p. 204. + " Records Geological Survey of India," vol. i. p. 205.