﻿UPPER 
  CRETACEOUS 
  SERIES 
  (AQUEOUS) 
  . 
  47 
  

  

  fragments 
  and 
  blocks, 
  occasionally 
  a 
  foot 
  or 
  so 
  in 
  diameter, 
  of 
  Nimar 
  

   sandstone 
  more 
  or 
  less 
  baked. 
  Traced 
  northward 
  beyond 
  Mankui, 
  they 
  

   assume 
  a 
  sedimentary 
  aspect 
  and 
  pass 
  into 
  Lametas, 
  in 
  a 
  most 
  bewilder- 
  

   ing 
  manner. 
  Reddish 
  calcareous 
  sandstones 
  are 
  inter-stratified 
  with 
  

   them 
  at 
  Ghantol. 
  Here 
  they 
  attain 
  a 
  thickness 
  of 
  some 
  200 
  feet. 
  But 
  

   the 
  lower 
  portion 
  of 
  this 
  thickness 
  is 
  chiefly 
  made 
  up 
  of 
  Deccan 
  trap 
  

   beds. 
  These 
  are 
  in 
  all 
  likelihood 
  intrusive 
  ; 
  if 
  so, 
  the 
  sandstones 
  would 
  

   belong 
  to 
  the 
  Lametas, 
  and 
  may 
  be 
  supposed 
  to 
  have 
  been 
  thrust 
  upward 
  

   by 
  trappsan 
  intrusions 
  along 
  with 
  the 
  overlying 
  tuff. 
  The 
  fact 
  that 
  

   similar 
  sandstones 
  occur 
  in 
  the 
  Lametas 
  about 
  Bag 
  gives 
  colour 
  to 
  this 
  

   supposition. 
  But 
  whether 
  they 
  are 
  Lametas 
  or 
  not, 
  from 
  their 
  perfect 
  

   conformability 
  with 
  the 
  superincumbent 
  agglomeratic 
  strata, 
  it 
  is 
  evident 
  

   that 
  the 
  latter 
  accumulated 
  in 
  Lameta 
  lakes 
  or 
  lagoons, 
  or, 
  in 
  other 
  

   words, 
  were 
  continuous, 
  as 
  it 
  were, 
  with 
  the 
  deposition 
  of 
  the 
  Lametas. 
  

   The 
  prevalence 
  or 
  otherwise 
  of 
  volcanic 
  showers 
  owing 
  to 
  the 
  proximity 
  

   or 
  remoteness 
  of 
  a 
  focus 
  of 
  eruption, 
  as 
  well 
  as 
  to 
  the 
  direction 
  of 
  the 
  

   wind, 
  &c, 
  would 
  give 
  these 
  latter 
  an 
  igneous 
  or 
  sedimentary 
  aspect. 
  

  

  Besides 
  the 
  angular 
  fragments 
  of 
  trap 
  and 
  Nimar 
  sandstone, 
  there 
  

   are 
  present 
  in 
  the 
  agglomerate 
  or 
  tuff 
  those 
  of 
  older 
  rocks, 
  especially 
  and 
  

   remarkably 
  of 
  a 
  highly 
  crystalline 
  saccharoid 
  limestone 
  1 
  and 
  of 
  a 
  syenitic 
  

   rock. 
  Crystals 
  of 
  augite 
  also 
  occur, 
  and 
  are 
  very 
  serviceable 
  in 
  distin- 
  

   guishing 
  them. 
  At 
  Artia, 
  for 
  instance, 
  there 
  is 
  a 
  highly 
  sandstone-like 
  

   tuff 
  resting 
  upon 
  trap, 
  and, 
  but 
  for 
  the 
  presence 
  of 
  the 
  volcanic 
  mineral, 
  

   might 
  be 
  mistaken 
  for 
  some 
  bed 
  of 
  the 
  Nimar 
  sandstone 
  brought 
  up 
  by 
  

   igneous 
  intrusion. 
  

  

  The 
  presence 
  of 
  the 
  agglomeratic 
  strata 
  indicates 
  the 
  existence 
  of 
  a 
  

   volcanic 
  centre 
  ; 
  and 
  their 
  thickness 
  and 
  association 
  with 
  huge 
  angular 
  

   blocks 
  of 
  pre-trappean 
  rocks 
  show 
  that 
  the 
  igneous 
  centre 
  was 
  not 
  far. 
  

   In 
  fact, 
  from 
  the 
  manner 
  in 
  which 
  they 
  are 
  cut 
  off 
  by 
  the 
  basaltic 
  ridge 
  

   at 
  Nakal 
  and 
  Mankui, 
  it 
  is 
  not 
  unlikely 
  that 
  the 
  traps 
  composing 
  this 
  

   ridge 
  were 
  erupted 
  out 
  of 
  a 
  fissure 
  in 
  the 
  locality. 
  

  

  Their 
  stratification, 
  the 
  presence 
  in 
  them 
  of 
  sedimentary 
  material, 
  

  

  1 
  This 
  is 
  undoubtedly 
  raetamorphic 
  limestone 
  altered 
  by 
  heat. 
  

  

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