﻿MR. 
  H. 
  T. 
  BROWN 
  ON 
  THE 
  PERMIAN 
  

  

  The 
  first 
  which 
  I 
  shall 
  describe 
  occurs 
  at 
  the 
  Boothorpe 
  Sanitary- 
  

   Pipe 
  Works 
  at 
  Woodville, 
  500 
  yards 
  S.W. 
  of 
  the 
  "Waterworks 
  tower. 
  

   The 
  details 
  of 
  the 
  section 
  are 
  as 
  follows 
  (see 
  fig. 
  2) 
  ; 
  — 
  

  

  N. 
  

  

  Fig. 
  2. 
  — 
  Section 
  at 
  Boothorpe 
  Clay 
  Works, 
  Woodville. 
  

  

  dy3*JL 
  

  

  ft. 
  in. 
  ft. 
  in. 
  

   -p 
  , 
  J 
  Coarse 
  Sandstone 
  and 
  Conglomerate, 
  with 
  a 
  

   " 
  bunter 
  1 
  few 
  clay-partings 
  (c) 
  10 
  

  

  /'Breccia 
  — 
  Fragments 
  of 
  quartzite, 
  fine 
  grit, 
  

   slate, 
  &c, 
  in 
  a 
  bluish-grey 
  calcareous 
  

  

  matrix 
  (b) 
  to 
  3 
  

  

  Permian 
  ^ 
  

  

  | 
  Grey 
  Marl 
  with 
  occasional 
  seams 
  of 
  very 
  

  

  small 
  pebbles 
  1 
  

  

  ^ 
  Bed 
  and 
  variegated 
  Marls 
  (&') 
  3 
  

  

  Coal-measures... 
  Highly 
  disturbed 
  purple 
  and 
  grey 
  mottled 
  

  

  Clay 
  (a) 
  3 
  

  

  The 
  Coal-measure 
  clays 
  at 
  the 
  base 
  of 
  this 
  section 
  are 
  highly 
  

   disturbed 
  and 
  exhibit 
  a 
  very 
  strongly 
  marked 
  slickensided 
  appear- 
  

   ance, 
  doubtless 
  produced 
  by 
  the 
  forces 
  which 
  brought 
  about 
  the 
  

   great 
  Boothorpe 
  fault, 
  which 
  passes 
  within 
  100 
  yards 
  of 
  this 
  

   exposure 
  and 
  throws 
  the 
  Coal-measures 
  to 
  the 
  extent 
  of 
  at 
  least 
  

   1000 
  ft. 
  

  

  The 
  red 
  and 
  grey 
  marls 
  and 
  breccias, 
  which 
  follow 
  in 
  upward 
  

   order, 
  rest 
  upon 
  an 
  uneven 
  floor 
  of 
  Coal-measure 
  clays, 
  and 
  dip 
  * 
  

   5° 
  S., 
  whilst 
  the 
  evenly 
  bedded 
  Bunter 
  Sandstones 
  and 
  Conglomerates 
  

   overlying 
  them 
  have 
  a 
  dip 
  of 
  only 
  4° 
  S. 
  In 
  consequence 
  of 
  this 
  

   the 
  Bunter, 
  as 
  the 
  northern 
  end 
  of 
  the 
  section 
  is 
  reached, 
  gradually 
  

   oversteps 
  the 
  truncated 
  edges 
  of 
  the 
  overlying 
  brecciated 
  series 
  until 
  

   it 
  rests 
  directly 
  on 
  the 
  Coal-measures. 
  

  

  A 
  careful 
  examination 
  of 
  the 
  exposure 
  renders 
  it 
  perfectly 
  certain 
  

   that 
  the 
  brecciated 
  series 
  must 
  have 
  been 
  subjected 
  to 
  very 
  consider- 
  

  

  A 
  short 
  distance 
  south 
  of 
  this 
  section 
  the 
  beds 
  have 
  a 
  regular 
  dip 
  to 
  the 
  

   N.E. 
  

  

  