﻿1864.] 
  HULL 
  AND 
  GREEN 
  MILLSTONE-GRIT. 
  259 
  

  

  liery 
  ; 
  it 
  there 
  reaches 
  a 
  thickness 
  of 
  about 
  4 
  feet 
  6 
  in., 
  which 
  it 
  

   keeps 
  for 
  some 
  way 
  to 
  the 
  south. 
  Upon 
  the 
  Rough 
  Rock 
  lies 
  the 
  

   Featheredge 
  Coal, 
  reaching 
  a 
  thickness 
  of 
  from 
  5 
  to 
  6 
  feet, 
  but 
  of 
  

   poor 
  quality. 
  

  

  On 
  the 
  west 
  side 
  of 
  the 
  Goyt 
  Trough 
  the 
  Fourth 
  and 
  Fifth 
  Grits 
  

   become 
  still 
  finer 
  and 
  more 
  flaggy, 
  but 
  the 
  three 
  upper 
  beds 
  keep 
  

   pretty 
  much 
  the 
  same 
  character. 
  The 
  Yoredale 
  Grit 
  seems 
  to 
  have 
  

   thinned 
  away 
  altogether. 
  

  

  Upon 
  Bosley 
  Minn 
  and 
  the 
  neighbouring 
  hills 
  the 
  Yoredale 
  

   Quartzites 
  take 
  the 
  form 
  of 
  grey, 
  nne.-grained, 
  very 
  hard, 
  quartz- 
  

   rocks, 
  with 
  a 
  calcareous 
  cement 
  in 
  places. 
  We 
  have 
  already 
  men- 
  

   tioned 
  that 
  these 
  beds 
  elsewhere 
  tend 
  to 
  put 
  on 
  this 
  shape 
  when 
  they 
  

   have 
  been 
  much 
  contorted. 
  

  

  f 
  . 
  Between 
  Longnor 
  and 
  Congleton. 
  — 
  Our 
  next 
  section 
  starts 
  in 
  the 
  

   valley 
  of 
  the 
  Dove, 
  on 
  the 
  Mountain-limestone, 
  between 
  Longnor 
  

   and 
  Hartington 
  ; 
  crosses 
  an 
  outlier 
  of 
  Millstone 
  -grit 
  on 
  Sheen 
  Hill, 
  

   and 
  a 
  very 
  broken 
  tract 
  of 
  the 
  Yoredale 
  rocks 
  about 
  five 
  miles 
  in 
  

   width. 
  It 
  then 
  passes 
  over 
  in 
  turn 
  the 
  Goyt 
  Trough, 
  the 
  Anticlinal 
  

   Fault, 
  and 
  the 
  Rudyerd 
  Basin, 
  and 
  ends 
  at 
  the 
  northern 
  part 
  of 
  the 
  

   Biddulph 
  Trough 
  near 
  Congleton 
  (see 
  fig. 
  7). 
  

  

  Position 
  of 
  Rocks 
  at 
  the 
  surface. 
  — 
  It 
  is 
  likely 
  that 
  the 
  Mountain- 
  

   limestone, 
  which 
  forms 
  the 
  eastern 
  bank 
  of 
  the 
  Dove, 
  is 
  here 
  again 
  

   bounded 
  by 
  a 
  fault. 
  On 
  the 
  west 
  side 
  of 
  the 
  valley 
  the 
  ground 
  rises 
  

   steeply 
  to 
  the 
  summit 
  of 
  Sheen 
  Hill 
  ; 
  along 
  the 
  flank 
  of 
  the 
  slope 
  

   runs 
  the 
  outcrop 
  of 
  a 
  sandstone-bed, 
  which 
  I 
  take 
  to 
  be 
  the 
  Yoredale 
  

   Grit 
  ; 
  the 
  hill 
  itself 
  is 
  formed 
  of 
  the 
  two 
  lowest 
  millstone 
  -grits 
  and 
  

   the 
  shale 
  between, 
  and 
  is 
  capped 
  by 
  a 
  very 
  small 
  patch 
  of 
  the 
  third 
  

   bed. 
  The 
  Yoredale 
  beds 
  to 
  the 
  west 
  cover 
  the 
  whole 
  of 
  the 
  country 
  

   up 
  to 
  the 
  edge 
  of 
  the 
  Goyt 
  Trough. 
  They 
  are 
  much 
  tossed 
  about 
  

   and 
  broken 
  by 
  faults, 
  but 
  the 
  three 
  groups 
  can 
  be 
  well 
  made 
  out. 
  

   The 
  Yoredale 
  Grit 
  plays 
  an 
  important 
  part 
  on 
  the 
  east 
  and 
  north- 
  

   east 
  of 
  Longnor 
  ; 
  the 
  Yoredale 
  Quartzites 
  are 
  well 
  shown 
  on 
  Lady 
  

   Edge 
  and 
  the 
  neighbouring 
  hills 
  ; 
  and 
  the 
  bottom 
  shales 
  and 
  lime- 
  

   stones 
  will 
  be 
  found 
  in 
  many 
  of 
  the 
  brook-courses 
  along 
  the 
  deeper 
  

   valleys. 
  

  

  In 
  contrast 
  to 
  this 
  troubled 
  country, 
  the 
  Goyt 
  Trough 
  shows 
  the 
  

   most 
  perfect 
  regularity 
  ; 
  a 
  little 
  coal-field, 
  which 
  has 
  been 
  worked 
  

   about 
  Goldsitch 
  Moss, 
  nestles 
  in 
  the 
  middle, 
  bounded 
  on 
  the 
  north 
  by 
  

   a 
  fault, 
  and 
  hemmed 
  in 
  on 
  the 
  east, 
  south, 
  and 
  west 
  by 
  lofty 
  ridges 
  

   of 
  the 
  grit-rocks, 
  the 
  most 
  noticeable 
  of 
  which 
  is, 
  as 
  usual, 
  that 
  

   formed 
  by 
  the 
  third 
  bed. 
  It 
  is 
  called 
  The 
  Roaches, 
  and 
  its 
  highest 
  

   point 
  is 
  about 
  1700 
  feet 
  above 
  the 
  sea. 
  To 
  the 
  west 
  of 
  this 
  escarp- 
  

   ment, 
  after 
  passing 
  over 
  the 
  outcrops 
  of 
  the 
  lower 
  grit-beds, 
  and 
  the 
  

   upper 
  part 
  of 
  the 
  Yoredale 
  rocks, 
  which 
  form 
  respectively 
  the 
  lower 
  

   part 
  of 
  the 
  range 
  and 
  the 
  Meerbrook 
  Valley, 
  we 
  find 
  the 
  Yoredale 
  

   Quartzites 
  rising 
  gently 
  to 
  the 
  summit 
  of 
  Gun 
  Hill, 
  when 
  they 
  roll 
  

   over, 
  and 
  plunge 
  steeply 
  down 
  to 
  the 
  west 
  until 
  they 
  abut 
  against 
  the 
  

   anticlinal 
  fault. 
  

  

  Beyond 
  the 
  anticlinal 
  fault 
  is 
  the 
  Rudyerd 
  Basin, 
  lying 
  between 
  

   it 
  and 
  another 
  break 
  about 
  a 
  couple 
  of 
  miles 
  to 
  the 
  west. 
  

  

  