62 TALCHEER COAL FIELD. 



Near Patrapara, from the denudation of the whitish sandstones and 

 a part of the coal, the beds of the upper grit are found resting on the 

 denuded surface of the coal beds. 



Below Gopalprasad the Tengria Nullah runs nearly due North for 



Blmah and lilac shales ^°^^ ^^^^^> ^^^ ^^er leaving the carbonaceous 

 ::o'usTnd*?e5atMiT2 ''^^^^'' ^audstones, Sandy shales, and bluish and 

 a of Section.) jjjac micaceous beds are brought down by small 



faults, with downthrows to the North. 



These beds, interspersed with beds of felspathic sandstone of greater 

 or less thickness, continue to be seen, with a Northerly dip, untU a 

 synclinal axis with an East and West strike is reached near the' village 

 of Bodhpur. Here beds of the upper group (including a conglomerate 

 of boulders of the tesselated sandstone to be mentioned hereafter) occur, 

 resting on the shaly strata. The latter re-appear in the small nullah, near 

 Horichandapur, with a reversed dip, viz., to the South-west. An anti- 

 clinal occurs a mile or two South of Boinpur, the axis having apparently 

 a nearly due East and West strike. Good, though not continuous, sections 

 are seen in the nullahs passing near Boinpur and Konkurapal, (the 

 latter called the TJlani Jore), and the lowest beds seen in the latter 

 appear to be the uppermost of the black shales. Further North, the 

 shaly beds, dipping at a considerable angle (20° to 25°), disappear under 

 the upper grits of the field in some places, and in others are faulted 

 against the lower beds, or the gneiss, by the Konjiri and Bodaberna 

 fault. The latter case occurs in the Western part of the area covered 

 by these rocks, near Kerjang, and is also seen West of Mosaniota. 



The beds, as seen in the Ulani Jore and Boinpur Nullahs, consist of 

 interstratifications of blue and lilac shales, frequently micaceous, and 

 containing abundantly plant remains (fragmentary), with coarse white 

 speckled sandstones and ferruginous sandstones which exhibit a 

 concretionary structure. These contain glossopteris, the shales generally 

 vertebraria. 



