TATAPANl AND SENDUR RIVER SECTIONS. 27 



PART 11. 



DESCRIPTIO]^ OF SECTIONS IN THE COAL-FIELD. 



I.— THE EASTERN BASIN (TATAPANl, GIDHI) BELONGING TO THE KUNHUR 



RIVER SYSTEM. 



A. — Tatapani and Sendur River Sections. 



The boundaries of the lowest Gondwana rocks with the metamorphic 

 rocks being natural between Tatapani and Mitgain, I obtained complete 

 sections through all groups represented in this field. 



Descending the Tatapani nullah (tributary of the Sendur river), I 

 Talchirs in Tatapani found Talchirs immediately below the hot spring ; 

 ^^^^^' they form beds of fine conglomerates, much denuded 



and merely plastering over the metamorphic rock beneath, which crops 

 up in isolated patches. This is soon followed by the typical boulder-bed 

 with intercalated beds of fine-grained yellowish green sandstone. Boulders 

 of irregular shape and evidently worn, derived from the surj-ounding 

 metamorphic rocks, are cemented together by rounded pebbles of the 

 same material, as well as fine-grained sandstone and clays. Also here and 

 there huge blocks of metamorphic rocks are found in this mass. The 

 general direction of the strike is north-east to south-west, and rolling 

 to north-west, under an angle of from 30° to 40°. Near the bend of the 

 nullah at Moua-t the strike is north-south, the dip west. In fact, the 

 strike is so changeable and tha dip rolhng, as usual in the Talchirs of 

 this basin, that it is difficult to record all observations on the map. 

 This conglomerate is overlaid by about 15 feet of an irregular bedded 

 whitish-green sandstone with a few boulders and gravel of metamorphic 

 rock scattered here and there. Above this sandstone again foUows 

 boulder-bed. The villages of Tithert and Bhormi are on Talchirs, the 

 boundary of which with the metamorphic rock below is well seen about 

 500 yards east of the latter village. 



( 155 ) 



