CONTENTS. 



Part I.— GENERAL GEOLOGY OF THE AREA. 



PAGE, 



Physical features 1 



Crystalline area ............ 3 



Old gneiss ............ 3 



Crystalline schists , .......... 4 



Granitic rocks 7 



The suh-metamorphic rocks 10 



The Gondwana series 12 



Talchirs (Loiver Gondwana) ^. ... 14 



BaraJcars „ 16 



Raniganj „ ......... 17 



PancJiets „ ......... 18 



Mahadevas (Upper Gondwana) ...... . . 19 



Trap 23 



Recent deposits ... 26 



Part II.— DESCRIPTION OF SECTIONS IN THE COAL- 

 FIELDS. 



L— The easteen basin (Tatapani, Gidhi, &c.,) belonging to the 



KUNHUE EIVEE SYSTEM. 



A. — TatapIni and Sendite eivee sections 27 



1. — Section along the 7iullah north of Bithiau ..... 28 



2.— „ „ „ south of Agar-t ..... 30 

 3. — „ in the nullahs hetioeen Chechra and No. 326 S. T. north of 



Mitgain .......... 32 



B.— Banki eivee sections • ... 34 



4. — Section along the nullah east of Gidhi and in the Banki river to 



Panri .......... 34 



5,^~ Section along tJie nullahs left and right of Banki river west of 



Chumra .,..,..,., 36 



