MEMOIRS 



OF THE 



GEOLOGICAL SURVEY OF INDIA. 



On the Geological Structure of the Eastern Coast from Latitude 

 15° northward to Masulipatam, 1 by It. Brucb Foote, f.g.s., Geo- 

 logical Survey of India. 



CONTENTS. 



Chapter I. — Introductory. 



„ II. — The Gneissic or Metamorphic 



Series — 



1. The Schistose areas. 



2. The Granitoid areas. 



3. Intrusive rocks in the 



Gneiss area. 

 „ III. — The Kadapa Series. 



Chapter IV.— The Upper Gondwana Series. 

 » V. — The Cuddalore (Rajahmundry) 



sandstones. 

 „ VI. — The Lateritic Rocks. 



VII.— The Alluvial Deposits. 

 „ VIII. — Soils and Suhaerial Deposits, 

 „ IX. — Economic Geology. 



CHAPTER I.— INTRODUCTORY. 

 The region to be described in these pages is included in four sheets 

 of the Atlas of India, viz., Nos. 75, 76, 95, and the extreme south- 

 west corner of sheet 94. The topographical structure of the area dealt 

 with is extremely simple. It is a mere inclined plane sloping gently 



1 Masulipatam is in latitude 16° 10', twenty miles east of the Kistna : of the area under 

 description that portion hetween the Kistna and the Godavari, on sheet 95 of the Indian 

 Atlas, contains only deltaic alluvium, and has heen omitted in the accompanying sketsh 

 map. 



( 1 ) 



Memoirs of the Geological Survey of India, Vol. XVI, Art, 1. 



