﻿[To 
  face 
  p. 
  52.] 
  

  

  Fig. 
  3. 
  — 
  Section 
  of 
  Crater 
  called 
  Ghundra 
  Koop. 
  

  

  Clay 
  ,,la 
  

  

  unNu 
  Approximate 
  line 
  of 
  submarine 
  cliff. 
  

  

  I 
  - 
  ■ 
  ■) 
  Strata 
  approaching 
  the 
  horizontal, 
  

  

  ■ 
  Areas 
  in 
  which 
  craters 
  are 
  known 
  to 
  exist. 
  

  

  |||||||j 
  Highly 
  inclined 
  strata. 
  

  

  Illllllllllll 
  Position 
  of 
  hot-springp. 
  

  

  ft 
  Supposed 
  submarine 
  crater. 
  

  

  " 
  G~"* 
  Line 
  of 
  section 
  in 
  fig. 
  2. 
  

  

  a. 
  Dry 
  mud. 
  b. 
  Liquid 
  mud. 
  

  

  Fig. 
  2. 
  — 
  Section 
  across 
  Guadur 
  and 
  Jebel 
  Mehdi. 
  

  

  Datum 
  line 
  Sea 
  level 
  % 
  

  

  geographical. 
  Mites 
  \\ 
  

  

  -1000 
  

   -1500 
  

   2000 
  

   2500 
  

  

  