﻿606 
  THE 
  CRETACEOUS 
  STEATA 
  OE 
  COUNTY 
  ANTRIM. 
  [Dec. 
  1 
  897, 
  

  

  been 
  met 
  with 
  ; 
  it 
  is 
  only 
  in 
  the 
  quietly-deposited 
  "White 
  Chalk 
  that 
  

   the 
  two 
  families 
  are 
  again 
  found 
  to 
  co-exist. 
  

  

  This 
  also 
  appears 
  to 
  hold 
  good 
  to 
  some 
  extent 
  for 
  the 
  English 
  Chalk, 
  

   the 
  Bhynchonellce 
  being 
  most 
  marked 
  in 
  the 
  marly 
  or 
  nodular 
  strata 
  

   (E7i. 
  Martini 
  in 
  the 
  Chalk 
  Marl, 
  and 
  Bli. 
  Cuvieri 
  in 
  the 
  Inoceramus 
  

   labiatus-beds), 
  while 
  Terebratulce 
  are 
  more 
  conspicuous 
  in 
  the 
  

   calcareous 
  deposits 
  (T. 
  semiglobosa 
  in 
  -the 
  Grey 
  Chalk, 
  and 
  T. 
  carnea 
  

   in 
  the 
  White 
  Chalk 
  of 
  the 
  Senonian 
  and 
  Turonian). 
  The 
  uppermost 
  

   beds 
  of 
  the 
  Upper 
  Chalk 
  agree 
  with 
  the 
  corresponding 
  Irish 
  

   Cretaceous 
  strata 
  in 
  having 
  the 
  two 
  occurring 
  together. 
  

  

  Discussion. 
  

  

  Prof. 
  Judd 
  congratulated 
  the 
  Author 
  on 
  having 
  been 
  able, 
  while 
  

   dealing 
  with 
  a 
  multiplicity 
  of 
  details, 
  to 
  bring 
  out 
  clearly 
  their 
  

   bearing 
  on 
  some 
  very 
  important 
  generalizations. 
  He 
  thought 
  that 
  

   when 
  the 
  Author's 
  valuable 
  studies 
  concerning 
  the 
  insoluble 
  residues 
  

   of 
  the 
  Cretaceous 
  rocks 
  were 
  completed, 
  geologists 
  would 
  have 
  in 
  

   their 
  possession 
  a 
  body 
  of 
  facts 
  of 
  great 
  interest 
  and 
  suggestiveness. 
  

  

  Prof. 
  G. 
  A. 
  J. 
  Cole 
  remarked 
  that 
  the 
  custom 
  among 
  Irish 
  

   geologists 
  has 
  been 
  to 
  speak 
  of 
  the 
  glauconitic 
  and 
  conglomeratic 
  

   beds 
  of 
  the 
  Cretaceous 
  as 
  the 
  'Hibernian 
  Greensand/ 
  without 
  

   necessarily 
  correlating 
  these 
  beds 
  with 
  the 
  Upper 
  Greensand 
  of 
  

   England 
  ; 
  and 
  probably 
  even 
  the 
  term 
  ' 
  Upper 
  Greensand 
  ' 
  on 
  the 
  

   Geological 
  Survey 
  maps 
  may 
  be 
  regarded 
  as 
  mainly 
  a 
  lithological 
  

   convenience. 
  Irish 
  workers 
  would 
  heartily 
  welcome 
  the 
  correlation 
  

   of 
  the 
  zones 
  now 
  put 
  before 
  them 
  ; 
  and 
  the 
  speaker 
  was 
  glad 
  to 
  see 
  

   that 
  no 
  great 
  break 
  was 
  insisted 
  on 
  in 
  the 
  Turonian 
  Series. 
  Geo- 
  

   graphical 
  considerations 
  as 
  to 
  the 
  shore-line 
  of 
  the 
  Cretaceous 
  

   sea 
  are 
  complicated 
  by 
  the 
  very 
  considerable 
  earth-movements 
  that 
  

   both 
  accompanied 
  and 
  followed 
  Eocene 
  times. 
  The 
  base 
  of 
  the 
  

   Templepatrick 
  section 
  would 
  be 
  of 
  interest 
  for 
  comparison 
  with 
  the 
  

   evidence 
  given 
  by 
  the 
  coast 
  north-east 
  and 
  south-east 
  of 
  it, 
  as 
  bearing 
  

   on 
  any 
  possible 
  division 
  between 
  a 
  northern 
  and 
  a 
  southern 
  area. 
  

  

  Mr. 
  W. 
  Whitaker 
  and 
  Prof. 
  H. 
  G. 
  Seeley 
  also 
  spoke. 
  

  

  The 
  Author, 
  in 
  answer 
  to 
  Prof. 
  Cole, 
  said 
  that 
  he 
  had 
  not 
  

   examined 
  the 
  large 
  quarry 
  at 
  Templepatrick, 
  but 
  its 
  position 
  suggests 
  

   an 
  intermediate 
  character 
  in 
  its 
  relations, 
  as 
  it 
  is 
  situated 
  between 
  

   the 
  typical 
  Eastern 
  and 
  Peninsular 
  districts. 
  In 
  answer 
  to 
  

   Mr. 
  "Whitaker, 
  he 
  observed 
  that 
  the 
  average 
  thickness 
  of 
  the 
  Chalk 
  

   is 
  about 
  50 
  feet 
  south 
  of 
  Belfast, 
  up 
  to 
  80 
  feet 
  north 
  of 
  Glenarm, 
  

   and 
  100 
  to 
  200 
  feet 
  near 
  Portrush 
  and 
  Eathlin 
  Island. 
  In 
  answer 
  to 
  

   Prof. 
  Seeley, 
  he 
  pointed 
  out 
  that 
  the 
  Gault 
  and 
  Upper 
  Greensand 
  

   have 
  not 
  been 
  absolutely 
  separated 
  in 
  the 
  paper, 
  while 
  the 
  nodular 
  

   beds 
  resembling 
  those 
  of 
  the 
  Inoceramus-labiatus 
  zone 
  are 
  found 
  

   immediately 
  above 
  the 
  unconformities, 
  and 
  belong 
  to 
  the 
  three 
  

   Belemnitella-zoHes 
  (B. 
  vera^ 
  B. 
  quadrata, 
  and 
  B. 
  rnucronata\ 
  

   according 
  to 
  their 
  position. 
  

  

  