﻿WADHWAN 
  SANDSTONES. 
  17 
  

  

  lations, 
  of 
  very 
  varied 
  and 
  nondescript 
  character, 
  much 
  weathered 
  and 
  

   disintegrated, 
  and 
  covered 
  with 
  saline 
  efflorescence. 
  One 
  of 
  the 
  traps 
  has 
  

   an 
  agglomeratic 
  appearance, 
  the 
  imbedded 
  lumps 
  and 
  masses 
  being 
  dark 
  

   and 
  scoriaceous. 
  These 
  traps 
  also 
  disintegrate 
  rapidly, 
  and 
  are 
  impreg- 
  

   nated 
  with 
  salt. 
  In 
  almost 
  all 
  places 
  where 
  the 
  perturbed 
  accumulations 
  

   at 
  the 
  base 
  of 
  the 
  traps 
  are 
  exposed, 
  both 
  the 
  sandstones 
  and 
  the 
  asso- 
  

   ciated 
  traps 
  are 
  intensely 
  saline. 
  

  

  At 
  Sejakpur 
  and 
  in 
  the 
  tributary 
  stream 
  to 
  the 
  north 
  that, 
  for 
  some 
  

   way, 
  forms 
  the 
  boundary 
  between 
  the 
  Sayla 
  and 
  Sejakpur 
  taluks, 
  a 
  similar 
  

   jumble 
  of 
  rocks 
  is 
  seen 
  at 
  the 
  base 
  of 
  the 
  traps, 
  and 
  is 
  further 
  compli- 
  

   cated 
  by 
  masses 
  that 
  appear 
  to 
  be 
  intrusive. 
  It 
  is 
  often 
  impossible 
  to 
  

   determine 
  from 
  surface 
  examination 
  only, 
  whether 
  some 
  of 
  these 
  decom- 
  

   posed 
  and 
  queer-looking 
  traps 
  are 
  really 
  intrusive, 
  or 
  merely 
  displaced 
  

   masses 
  of 
  volcanic 
  rock. 
  They 
  are 
  too 
  irregular 
  and 
  ill-defined 
  in 
  shape 
  

   and 
  direction, 
  to 
  be 
  regarded 
  as 
  dykes 
  ; 
  moreover, 
  most 
  of 
  the 
  dyke 
  trap 
  

   is 
  compact, 
  whilst 
  these 
  masses 
  are 
  frequently 
  amygdaloidal, 
  yet 
  differ 
  

   much 
  from 
  the 
  regular 
  bedded 
  traps. 
  

  

  These 
  strange 
  and 
  complex 
  rocks 
  are, 
  perhaps, 
  best 
  seen 
  in 
  the 
  neigh- 
  

   bourhood 
  of 
  Bhaduka, 
  and 
  along 
  the 
  channel 
  of 
  the 
  Bkogawa 
  river, 
  as 
  

   far 
  as 
  Godavari. 
  At 
  Shekhpur, 
  a 
  village 
  a 
  little 
  lower 
  down, 
  a 
  large 
  

   open 
  irrigation 
  well 
  shows 
  the 
  following 
  section. 
  At 
  the 
  top 
  is 
  basalt, 
  

   then 
  below 
  comes 
  an 
  earthy 
  chocolate 
  -brown 
  argillaceous 
  rock 
  with 
  

   enclosed 
  lumps 
  of 
  decomposed 
  amygdaloidal 
  trap. 
  These 
  lumps 
  are 
  

   sparingly 
  scattered 
  in 
  the 
  upper 
  part, 
  but 
  become 
  more 
  abundant 
  below, 
  

   and 
  towards 
  the 
  base 
  constitute 
  (together 
  with 
  other 
  miscellaneous 
  trap 
  

   fragments) 
  the 
  bulk 
  of 
  the 
  rock 
  mass. 
  The 
  subjacent 
  strata 
  were 
  not 
  

   seeu, 
  but 
  the 
  agglomerate 
  here 
  is 
  in 
  all 
  probability 
  the 
  bottom 
  bed 
  of 
  the 
  

   trappean 
  series. 
  

  

  At 
  the 
  most 
  southern 
  limit 
  of 
  the 
  sandstone 
  area, 
  in 
  the 
  south 
  part 
  

   of 
  the 
  Chotila 
  district, 
  a 
  small 
  but 
  interesting 
  section 
  is 
  exposed 
  in 
  the 
  

   right 
  bank 
  of 
  the 
  stream 
  passing 
  Mewasa, 
  about 
  a 
  mile 
  below 
  the 
  village. 
  

   At 
  this 
  spot, 
  the 
  traps 
  are 
  seen 
  to 
  rest 
  unevenly 
  upon 
  a 
  bed 
  of 
  soft 
  coarse 
  

   sandstone, 
  in 
  which 
  are 
  imbedded 
  lumps 
  and 
  fragments 
  of 
  trap 
  ; 
  thus 
  

   b 
  ( 
  89 
  ) 
  

  

  