﻿1863.] 
  

  

  TATE 
  LIAS 
  OF 
  BELFAST. 
  

  

  109 
  

  

  ft. 
  

  

  in. 
  

  

  1 
  

  

  

  

  1 
  

  

  3 
  

  

  1 
  

  

  

  

  4. 
  Blue 
  marly 
  Shales 
  with 
  Oardium 
  Mhceticum 
  .... 
  

  

  5. 
  Indurated 
  Shales 
  

  

  6. 
  Indurated 
  Shales 
  of 
  brick-red 
  colour, 
  with 
  Mo- 
  

  

  diola 
  minima 
  

  

  Basaltic 
  dyke. 
  

  

  12 
  3 
  

  

  The 
  value 
  of 
  this 
  section, 
  imperfect 
  as 
  it 
  is, 
  is 
  not 
  to 
  be 
  under- 
  

   rated 
  ; 
  for 
  its 
  fossil 
  contents, 
  as 
  well 
  as 
  the 
  relations 
  of 
  the 
  beds, 
  in- 
  

   dicate 
  a 
  newer 
  horizon 
  than 
  that 
  of 
  the 
  Avicula-contorta 
  series. 
  

  

  I 
  have 
  here 
  to 
  acknowledge 
  the 
  assistance 
  rendered 
  me 
  by 
  Mr. 
  

   Charles 
  Moore 
  in 
  the 
  examination 
  of 
  fossils, 
  especially 
  from 
  this 
  

   locality, 
  and 
  also 
  for 
  some 
  valuable 
  suggestions 
  that 
  have 
  determined 
  

   me 
  in 
  referring 
  the 
  beds 
  of 
  this 
  section, 
  with 
  their 
  equivalents 
  of 
  

   the 
  Colin 
  Glen 
  Section, 
  detailed 
  at 
  p. 
  108, 
  to 
  the 
  White 
  Lias. 
  

  

  The 
  only 
  other 
  locality 
  in 
  which 
  I 
  have 
  seen 
  the 
  White 
  Lias 
  is 
  at 
  

   Waterloo, 
  Larne. 
  There, 
  grey 
  marls, 
  with 
  disseminated 
  calcareous 
  

   particles, 
  presenting 
  aiuoolitic 
  structure*, 
  appear 
  below 
  true 
  Lower 
  

   Lias, 
  and 
  surmounting 
  black 
  shales 
  with 
  Avicula 
  contorta. 
  

  

  List 
  of 
  Fossils 
  of 
  the 
  White 
  Lias. 
  

  

  Chemnitzia 
  (cast). 
  

   Ostrea 
  liassica, 
  Strickland. 
  

   Cardium 
  Khaeticum, 
  Merian. 
  

   Modiola 
  minima, 
  Sow. 
  

   Myacites 
  (casts 
  of 
  two 
  sp.). 
  

  

  Cardinia 
  (cast). 
  

  

  Monotis 
  decussata, 
  Goldfuss. 
  

  

  Axinus 
  concentricus 
  ?, 
  Moore. 
  

  

  cloacinus, 
  Quenstedt. 
  

  

  Area 
  Lycetti?, 
  Moore. 
  

  

  They 
  have 
  all 
  been 
  obtained 
  from 
  Bed 
  No. 
  1 
  of 
  the 
  Cave 
  Hill 
  Sec- 
  

   tion. 
  Of 
  these, 
  Cardium 
  Hhosticum, 
  Axinus 
  cloacinus, 
  and 
  Modiola 
  

   minima 
  are 
  common 
  to 
  the 
  White 
  Lias 
  and 
  the 
  Avicula-contorta 
  zone. 
  

  

  6. 
  Zone 
  of 
  the 
  Lower 
  Lias, 
  with 
  Ammonites 
  intermedins, 
  the 
  equi- 
  

   valent 
  to 
  A.-Bucklandi 
  zone. 
  — 
  The 
  Lower 
  Lias 
  is 
  absent 
  from 
  many 
  

   localities 
  in 
  the 
  neighbourhood 
  of 
  Belfast. 
  It 
  occurs 
  resting 
  on 
  the 
  

   White 
  Lias 
  at 
  Colin 
  Glen, 
  and 
  consists 
  of 
  the 
  following 
  beds 
  (under- 
  

   lying 
  the 
  Gault) 
  : 
  — 
  

  

  ft. 
  

   16 
  

  

  in. 
  

  

  

  

  1. 
  Black 
  shales, 
  unfossiliferous 
  . 
  . 
  

  

  2. 
  Highly 
  calcareous 
  marls 
  with 
  Lima 
  gigantea 
  and 
  

  

  Ammonites 
  intermedius 
  1 
  

  

  3. 
  Marls 
  and 
  shales 
  with 
  Echinus 
  -spines 
  and 
  Mo- 
  

  

  diola 
  minima 
  ? 
  17 
  

  

  (Trap-dyke 
  2 
  feet.) 
  

  

  4. 
  Alternations 
  of 
  shelly 
  limestones 
  with 
  Ostrea 
  

  

  liassica 
  ? 
  and 
  Modiola 
  minima 
  4 
  3 
  

  

  5. 
  White 
  Lias 
  . 
  . 
  , 
  . 
  , 
  , 
  

  

  38 
  3 
  

  

  * 
  Have 
  these 
  beds 
  been 
  mistaken 
  for 
  true 
  Oolite, 
  which 
  is 
  said 
  to 
  occur 
  in 
  this 
  

   neighbourhood 
  ? 
  

  

  