﻿452 
  

  

  E. 
  WILSON 
  ON 
  THE 
  RH2ETICS 
  OF 
  NOTTINGHAMSHIRE. 
  

  

  cutting 
  is 
  occupied 
  by 
  glacial 
  drift, 
  which 
  appears 
  to 
  cut 
  out 
  the 
  

   higher 
  beds 
  of 
  the 
  Rhaetics 
  at 
  this 
  point. 
  The 
  Gainsborough 
  section 
  is 
  

   remarkable 
  for 
  the 
  exceptional 
  development 
  of 
  the 
  Avicula-contorta 
  

  

  Bhcetics 
  of 
  Notts. 
  Generalized 
  Section. 
  

  

  < 
  

   « 
  -j 
  

  

  I 
  

  

  o 
  

  

  M 
  

  

  g 
  

  

  92 
  J 
  

   o 
  

  

  is 
  

  

  w 
  

  

  Shales 
  and 
  limestones. 
  

   Esther 
  ia 
  minuta. 
  

  

  Shales 
  and 
  limestone 
  

  

  nodules. 
  

  

  18 
  ft. 
  

  

  Shales, 
  with 
  bands 
  of 
  

   limestone, 
  and 
  sand- 
  

   stone, 
  and 
  bone-beds. 
  

   15 
  ft. 
  

  

  ' 
  Tea-green 
  Marls. 
  

   15 
  ft. 
  to 
  20 
  ft. 
  

  

  Red 
  and 
  Green 
  5 
  arls. 
  

  

  beds, 
  and 
  for 
  the 
  numerous 
  and 
  thick 
  bands 
  of 
  sandstone 
  they 
  con- 
  

   tain. 
  Mr. 
  Burton, 
  who 
  has 
  accurately 
  described 
  this 
  highly 
  inter- 
  

   esting 
  section 
  in 
  the 
  pages 
  of 
  the 
  Society's 
  Journal*, 
  then 
  thought 
  

   that 
  the 
  Rhaetics 
  (which 
  had 
  not 
  at 
  that 
  time 
  been 
  discovered 
  in 
  

   Notts, 
  Leicestershire, 
  or 
  Yorkshire) 
  were 
  limited 
  to 
  an 
  area 
  3 
  or 
  4 
  

  

  * 
  Quart. 
  Journ. 
  Geol. 
  Soc. 
  1867, 
  vol. 
  xxiii. 
  p. 
  315. 
  

  

  