﻿62 
  BOSE 
  : 
  GEOLOGY 
  OF 
  THE 
  LOWER 
  NARBADA 
  VALLEY. 
  

  

  verticality 
  and 
  form. 
  The 
  Koteda 
  columns 
  near 
  Gujri 
  * 
  agree 
  in 
  their 
  

   radiation 
  with 
  the 
  outer 
  columns 
  at 
  Mangdi. 
  2 
  

  

  Mora. 
  — 
  The 
  trap 
  is 
  overlaid 
  by 
  soil 
  of 
  some 
  thickness, 
  only 
  

   where 
  it 
  lies 
  within 
  the 
  influence 
  of 
  streams 
  and 
  water-courses. 
  The 
  

   low 
  and 
  generally 
  flat-topped 
  trap 
  hills 
  nearer 
  Mandu 
  are 
  covered 
  with 
  

   thin 
  forests 
  of 
  Salai 
  (Boswellia 
  thurifera), 
  the 
  dull 
  monotony 
  of 
  which 
  

   is 
  broken 
  chiefly 
  by 
  the 
  sparse 
  interspersion 
  of 
  Parasa 
  (Bute* 
  frondosa) 
  , 
  

   Baer 
  (Ziziplius 
  jicjuba), 
  Aola 
  {Bhyllanthus 
  emblica), 
  and 
  a 
  diminutive 
  

   variety 
  of 
  Sag 
  (Tectona 
  grandis) 
  . 
  In 
  the 
  Uri 
  valley 
  and 
  further 
  west, 
  

   the 
  Anjana 
  3 
  (Hardwickia 
  binata) 
  with 
  elegant 
  little 
  green 
  leaves 
  entirely 
  

   replaces 
  the 
  Salai 
  as 
  the 
  predominant 
  trap-plant, 
  and 
  the 
  Parasa 
  4 
  is 
  

   much 
  more 
  largely 
  represented, 
  so 
  that 
  the 
  trap 
  scenery 
  of 
  the 
  western 
  

   portion 
  of 
  the 
  area 
  comprised 
  in 
  this 
  report 
  presents 
  a 
  marked 
  and 
  

   agreeable 
  contrast 
  to 
  that 
  of 
  the 
  eastern. 
  

  

  Relations 
  to 
  underlying 
  beds. 
  — 
  The 
  relation 
  of 
  the 
  trap 
  to 
  the 
  

   subjacent 
  beds 
  is 
  one 
  of 
  unconformity 
  more 
  or 
  less 
  marked 
  according 
  to 
  

   the 
  remoteness 
  in 
  age 
  of 
  the 
  latter. 
  

  

  In 
  the 
  northern 
  portion 
  of 
  the 
  Man 
  valley, 
  enclosed 
  between 
  two 
  

   spurs 
  of 
  the 
  Vindhyan 
  range, 
  the 
  relation 
  of 
  the 
  trap 
  to 
  the 
  underly- 
  

   ing 
  beds 
  affords 
  a 
  good 
  illustration 
  of 
  the 
  fact 
  so 
  clearly 
  pointed 
  out 
  by 
  

   Mr. 
  Blanford, 
  5 
  viz,, 
  that 
  the 
  cretaceous 
  beds 
  had 
  suffered 
  considerable 
  

   sub-aerial 
  denudation 
  before 
  the 
  outpouring 
  of 
  the 
  trap 
  upon 
  their 
  sur- 
  

   face. 
  At 
  Nimkhera, 
  a 
  good 
  thickness 
  of 
  the 
  typical 
  coralline 
  limestone 
  

   was 
  seen 
  in 
  the 
  bed 
  of 
  the 
  river, 
  as 
  well 
  as 
  just 
  below 
  the 
  village 
  ; 
  

   and 
  some 
  2 
  miles 
  westward, 
  at 
  Goari, 
  a 
  few 
  feet 
  of 
  the 
  nodular 
  lime- 
  

   stone 
  are 
  exposed. 
  Proceeding 
  still 
  further 
  west, 
  the 
  trap 
  is 
  seen 
  to 
  

  

  » 
  "I 
  Memoirs," 
  VI, 
  pt., 
  3, 
  p. 
  130, 
  and 
  " 
  Manual, 
  " 
  p. 
  303. 
  

  

  2 
  Columnar 
  structure 
  in 
  the 
  Deccan 
  area 
  is 
  minutely 
  described 
  by 
  Sykes 
  (Geol. 
  Trans., 
  

   Ser. 
  2, 
  Vol. 
  IV, 
  pp. 
  415, 
  &c). 
  

  

  8 
  Some 
  of 
  the 
  villages 
  in 
  the 
  Uri 
  valley 
  are 
  called 
  after 
  this 
  tree 
  : 
  Anjantar 
  (mis- 
  

   spelt 
  Ajantar 
  in 
  the 
  Topographical 
  Survey 
  Map), 
  AnjaDkhera, 
  &c. 
  

  

  4 
  This 
  plant 
  would 
  be 
  largely 
  available 
  for 
  economical 
  purposes 
  (see 
  Roxb. 
  Flora 
  Ind., 
  

   Clarke's 
  Ed., 
  p. 
  540 
  ; 
  Carey's 
  Ed. 
  Ill, 
  pp. 
  244-247). 
  But 
  hardly 
  any 
  use 
  of 
  it 
  is 
  made 
  in 
  

   the 
  district, 
  where 
  the 
  people 
  are 
  evidently 
  ignorant 
  of 
  its 
  utility. 
  

  

  & 
  " 
  Memoir," 
  Vol. 
  VI, 
  3, 
  pp. 
  51, 
  &c. 
  ; 
  Vol. 
  VI, 
  2, 
  p. 
  21 
  ; 
  " 
  Manual," 
  p. 
  324. 
  

  

  ( 
  62 
  ) 
  

  

  