﻿1863.] 
  TATE 
  LIAS 
  OF 
  BELFAST. 
  105 
  

  

  Section 
  of 
  the 
  Avicula-contorta 
  Zone 
  in 
  Colin 
  Glen. 
  

  

  No. 
  of 
  

   Bed. 
  

  

  10 
  

   11 
  

  

  12 
  

  

  13 
  

  

  14 
  

   15 
  

   16 
  

   17 
  

  

  18 
  

   19 
  

   20 
  

  

  21 
  

  

  22 
  

  

  23 
  

   24 
  

   25 
  

   26 
  

  

  27 
  

  

  28 
  

  

  29 
  

   30 
  

   31 
  

   to 
  

   34 
  

   35 
  

   36 
  

  

  37 
  

  

  38 
  

   39 
  

  

  Lithology. 
  

  

  Zone 
  of 
  the 
  White 
  Lias 
  resting 
  on 
  

   Black 
  Shales 
  

  

  Argillaceous 
  Limestone 
  

   Black 
  Shales 
  

  

  Marly 
  Shales 
  

  

  Blue 
  Argillaceous 
  Limestone 
  . 
  . 
  

  

  Marly 
  Shales 
  

  

  Brown 
  Argillaceous 
  Limestone 
  

  

  Black 
  Shales 
  

  

  Micaceous 
  Sandstone 
  

  

  Soft 
  Shales 
  

  

  Argillaceous 
  Limestone 
  

  

  StiffShales 
  .. 
  

  

  Argillaceous 
  Limestone 
  , 
  

  

  Shales 
  , 
  

  

  Soft 
  Micaceous 
  Sandstone 
  

  

  StiffShales 
  

  

  Compact 
  Calcareous 
  Sandstone 
  

   Soft 
  Shales 
  

  

  Stiff 
  Shales. 
  

  

  Compact 
  Sandstone 
  

   Black 
  Shales 
  

  

  Shales 
  and 
  Micaceous 
  Sandstones 
  

  

  Arenaceous 
  Shales 
  

   Soft 
  Shales 
  

  

  Thinly 
  laminated 
  stiff 
  Shales 
  

  

  Arenaceous 
  Shales 
  

  

  Stiff 
  Black 
  Clay 
  

  

  Blue 
  Marls 
  of 
  the 
  Keuper 
  below. 
  

  

  Thickness. 
  

  

  2^ 
  

  

  ft. 
  in. 
  

  

  11 
  

  

  5 
  

  

  1 
  7 
  

  

  1 
  3 
  

  

  7 
  

  

  5 
  

  

  6 
  

   1 
  

  

  1 
  

  

  9 
  

  

  Of 
  

  

  1 
  9 
  

  

  2 
  

  

  6 
  

  

  1 
  

  

  8 
  

  

  1 
  

  

  6 
  

  

  5 
  

  

  2 
  

  

  7 
  

  

  4 
  

  

  5 
  

  

  19 
  9 
  

  

  Organic 
  Remains. 
  

  

  Axinus 
  cloacinus, 
  Avicula, 
  

   Cardium 
  Rhajticum, 
  Pla- 
  

   cunopsis. 
  

  

  Pecten 
  Valoniensis, 
  Mo- 
  

   diola, 
  Avicula, 
  Placu- 
  

   nopsis 
  alpina. 
  

  

  Axinus 
  cloacinus, 
  Avicula 
  

   contorta. 
  

  

  {Axinus 
  cloacinus, 
  Cardium 
  

   Rhaeticum, 
  Avicula 
  con- 
  

   torta. 
  

  

  Axinus 
  cloacinus. 
  

  

  {Pecten 
  Yaloniensis, 
  Cardium 
  

   Pvhaeticum, 
  Axinus 
  cloaci- 
  

   nus, 
  Avicula 
  contorta. 
  

  

  Fish-bed. 
  

  

  (Scattered 
  Fish-remains, 
  Na- 
  

   ticaOppeli, 
  Trochus 
  Wal- 
  

   toni, 
  & 
  Avicula 
  contorta. 
  

  

  Section 
  of 
  the 
  Avicula- 
  contorta 
  Zone 
  at 
  Cave 
  Hill, 
  three 
  miles 
  north 
  of 
  Belfast 
  

  

  No. 
  of 
  

   Bed. 
  

  

  Lithology. 
  

  

  Thickness. 
  

  

  Organic 
  Remains. 
  

  

  5 
  

  

  6 
  

  

  7 
  

   8 
  

  

  9 
  

  

  White 
  Lias 
  resting 
  on 
  

  

  ft. 
  in. 
  

   12 
  2 
  

  

  o 
  ii 
  

  

  2 
  8 
  

   2J 
  

   10 
  

  

  J" 
  Axinus 
  cloacinus 
  and 
  Avi- 
  

   \ 
  cula 
  contorta. 
  

  

  Avicula 
  contorta 
  and 
  Fish. 
  

  

  

  

  Three 
  bands 
  of 
  Argillaceous 
  1 
  

  

  Blue 
  Marls 
  of 
  the 
  Keuper 
  below 
  

  

  16 
  

  

  