﻿CONTENTS. 
  

  

  CHAPTER 
  I. 
  

  

  INTE0DUCT0EY. 
  

  

  Paob 
  

  

  Topographical. 
  — 
  Hills. 
  Rivers. 
  Kainfall. 
  Soil 
  and 
  vegetable 
  products. 
  

  

  Animals. 
  

   Previous 
  Geological 
  Writers. 
  — 
  Hiigel. 
  Falconer. 
  Theobald. 
  Blanford. 
  . 
  1 
  

  

  CHAPTER 
  II. 
  

  

  GEOLOGY. 
  

  

  Geological 
  Formations. 
  — 
  TJmia 
  beds. 
  — 
  Sandstones 
  and 
  shales. 
  Thickness. 
  

   Harsh 
  and 
  conglomeratic 
  beds. 
  Softer 
  sandstones 
  of 
  the 
  plains. 
  Iron- 
  

   stone 
  band. 
  Plant 
  shales. 
  Carbonaceous 
  shale 
  exposures 
  along 
  the 
  Ran. 
  

  

  Wadhwdn-Sand 
  stones. 
  — 
  Red 
  sandstone 
  with 
  cherty 
  bands. 
  Marine 
  organic 
  

   remains. 
  Inliers 
  east 
  of 
  Morvi. 
  Inliers 
  south-west 
  of 
  Wadhwan. 
  Marine 
  

   limestone,? 
  Cretaceous. 
  

  

  Trappean- 
  Grits. 
  — 
  Gritty 
  volcanic 
  rock 
  near 
  Abhepur. 
  

  

  Traps. 
  — 
  Bedded 
  traps. 
  Thickness. 
  Varied 
  character. 
  Zeolites 
  abundant. 
  

   Varied 
  floor. 
  Volcanic 
  ash 
  in 
  Chotila 
  hill. 
  The 
  Gfrnar 
  a 
  focus 
  of 
  erup- 
  

   tion. 
  Diorite 
  of 
  central 
  peak. 
  Diorite 
  of 
  two 
  kinds. 
  Decomposed 
  

   quartz-diorite 
  in 
  the 
  valley. 
  Greenstones 
  of 
  the 
  outer 
  range. 
  Quartz- 
  

   felsite 
  of 
  the 
  axis. 
  Osham 
  hill. 
  Pitchstone 
  and 
  trachy-felsite. 
  Barda 
  

   hills. 
  Quartz-felsite 
  and 
  trachytic 
  ash. 
  Hill 
  near 
  Dhank. 
  The 
  Sihor 
  

   or 
  Sonpuri 
  range. 
  Obsidian 
  and 
  pitchstone. 
  Chamardi 
  and 
  Chogat 
  hills. 
  

  

  Intertrappean 
  beds. 
  — 
  Porcellaneous 
  shale 
  west 
  of 
  Chotila. 
  Limestone 
  at 
  

   Ninama". 
  

  

  Trap 
  dykes. 
  — 
  The 
  Sardhar 
  dyke. 
  Sources 
  of 
  discharge. 
  Nature 
  of 
  dyke 
  trap. 
  

   Variety 
  in 
  aspect. 
  Differently 
  bearing 
  dykes 
  have 
  different 
  kinds 
  of 
  

   trap. 
  Exceptions. 
  Dykes 
  in 
  CJmia 
  sandstone. 
  Slickensides 
  on 
  the 
  sand- 
  

   stone. 
  Dykes 
  transversely 
  columnar. 
  Intrusions 
  north 
  of 
  Chotila. 
  

   Dykes 
  numerous 
  in 
  south-eastern 
  area. 
  

  

  Lateritic 
  rocks. 
  — 
  Distribution. 
  Varieties 
  of 
  the 
  rock. 
  Thickness. 
  Volcanic 
  

   origin. 
  

  

  Gdj 
  beds. 
  — 
  Position. 
  Thickness. 
  South-eastern 
  area. 
  No 
  good 
  sections. 
  

   Fossiliferous 
  conglomerate 
  near 
  Akwara. 
  Agatiferous 
  conglomerate. 
  

   Hill 
  ridge 
  west 
  of 
  H^thab. 
  Coast 
  flags 
  at 
  Gogha. 
  Piram 
  |Island. 
  Dis- 
  

   covery 
  of 
  fossils 
  in 
  1836. 
  Position 
  of 
  fossil 
  bed. 
  Coast 
  rocks 
  south 
  of 
  

   Gogha. 
  Fossil 
  bed 
  north 
  of 
  J£fera*b£d; 
  South-east 
  coast. 
  Foraminifera 
  

   in 
  beds 
  near 
  Bhog£t. 
  Coral 
  zone. 
  

  

  