﻿1864.] 
  

  

  HULL 
  AND 
  GREEN 
  MILLSTONE-GRIT. 
  

  

  265 
  

  

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  . 
  

  

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  **^ 
  

  

  &Q 
  

  

  

  "VM'S'\ 
  

  

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  — 
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  1 
  

  

  .-•a 
  

  

  Fault. 
  

  

  -a 
  sP.a 
  

  

  O 
  O 
  J5 
  

   M 
  1-4 
  00 
  

  

  J-9 
  

  

  pq 
  

  

  

  * 
  

  

  third 
  bed 
  was 
  seen, 
  it 
  did 
  not 
  seem, 
  

   to 
  be 
  above 
  20 
  feet 
  in 
  thickness. 
  

   The 
  little 
  coal 
  on 
  the 
  top 
  of 
  this 
  

   bed 
  has 
  been 
  worked 
  about 
  half 
  a 
  

   mile 
  to 
  the 
  east 
  of 
  Froghall. 
  

  

  Yoredale 
  Rocks. 
  — 
  In 
  the 
  anti- 
  

   clinal 
  space 
  between 
  the 
  Pottery 
  

   and 
  Wetley 
  Coal-fields 
  no 
  trace 
  of 
  

   the 
  upper 
  group 
  is 
  to 
  be 
  found. 
  

   Close 
  below 
  the 
  outcrop 
  of 
  the 
  

   third 
  grit 
  come 
  quartzose 
  sand- 
  

   stones, 
  with 
  all 
  the 
  usual 
  charac- 
  

   ters 
  of 
  the 
  Yoredale 
  Quartzites. 
  

  

  In 
  this 
  country, 
  where 
  the 
  grit- 
  

   stones 
  have 
  become 
  so 
  thin 
  and 
  

   weakly, 
  while 
  the 
  chief 
  sandstones 
  

   of 
  the 
  Yoredale 
  series 
  still 
  keep 
  

   up 
  their 
  thickness 
  and 
  character, 
  

   a 
  curious 
  change 
  has 
  been 
  brought 
  

   about 
  in 
  the 
  connexion 
  between 
  

   scenery 
  and 
  geological 
  structure. 
  

   In 
  the 
  northern 
  districts, 
  about 
  The 
  

   Peak 
  for 
  instance, 
  it 
  is 
  the 
  Mill- 
  

   stone-grit 
  that 
  caps 
  the 
  loftiest 
  

   hills 
  and 
  forms 
  the 
  boldest 
  ridges, 
  

   while 
  the 
  Yoredale 
  Grits 
  hold 
  a 
  

   lower 
  place 
  ; 
  here, 
  on 
  the 
  other 
  

   hand, 
  the 
  Millstone-grit 
  makes 
  

   but 
  little 
  show, 
  and 
  the 
  Yoredale 
  

   sandstones 
  stand 
  out 
  well, 
  and 
  

   form 
  all 
  the 
  most 
  marked 
  features 
  

   in 
  the 
  landscape. 
  

  

  § 
  6. 
  Summary. 
  

  

  We 
  have 
  now 
  traced 
  the 
  Mill- 
  

   stone-grit 
  from 
  the 
  borders 
  of 
  Lan- 
  

   cashire 
  and 
  Yorkshire, 
  where 
  it 
  

   contains 
  five* 
  thick 
  beds 
  of 
  mass- 
  

   ive 
  gritstone, 
  and 
  reaches 
  a 
  thick- 
  

   ness 
  of 
  2800 
  feet, 
  to 
  the 
  borders 
  of 
  

   the 
  Xorth 
  Staffordshire 
  Coal-fields, 
  

   where 
  only 
  two 
  of 
  these 
  beds 
  are 
  

   left, 
  and 
  where 
  the 
  whole 
  thick- 
  

   ness 
  is 
  not 
  more 
  than 
  200 
  or 
  300 
  

   feet. 
  

  

  "We 
  find 
  the 
  Rough 
  Eock 
  (the 
  

   uppermost 
  bed, 
  with 
  one 
  exception) 
  

  

  * 
  The 
  Kinder 
  Scout 
  Grit 
  has 
  at 
  least 
  

   two 
  thick 
  gritstones, 
  with 
  shale 
  between. 
  

   t2 
  

  

  