﻿THE 
  

  

  QUARTERLY 
  JOURNAL 
  

  

  OF 
  

  

  THE 
  GEOLOGICAL 
  SOCIETY 
  OF 
  LONDON. 
  

  

  Vol. 
  XLV. 
  

  

  1 
  . 
  The 
  Permian 
  Rocks 
  of 
  the 
  Leicestershire 
  Coal-eield. 
  

  

  By 
  Horace 
  T. 
  Brown, 
  Esq., 
  F.G.S., 
  F.I.C. 
  (Eead 
  Nov. 
  7, 
  1888.) 
  

  

  [Plate 
  I.] 
  

  

  Contents. 
  

  

  Page 
  

  

  (1) 
  Stratigraphical 
  1 
  

  

  (2) 
  Lithological 
  Characters 
  of 
  the 
  Beds 
  21 
  

  

  (3) 
  The 
  Kock-fragments 
  of 
  the 
  Breccias, 
  with 
  their 
  pe- 
  

  

  trological 
  examination 
  22 
  

  

  (4) 
  The 
  origin 
  of 
  the 
  brecciated 
  fragments 
  27 
  

  

  (5) 
  Correlation 
  of 
  the 
  Beds 
  with 
  the 
  Permians 
  of 
  sur- 
  

  

  rounding 
  districts, 
  and 
  a 
  consideration 
  of 
  the 
  

   physical 
  conditions 
  attending 
  their 
  deposition 
  ... 
  35 
  

  

  (6) 
  Appendix. 
  The 
  igneous 
  rocks 
  of 
  the 
  Market 
  

  

  Bosworth 
  borings 
  37 
  

  

  (1) 
  Stratigraphical. 
  

  

  Tee 
  exposed 
  Carboniferous 
  strata 
  of 
  the 
  Leicestershire 
  Coal-field 
  are 
  

   bounded 
  on 
  their 
  western 
  edge 
  by 
  a 
  narrow 
  strip 
  of 
  coarse 
  current- 
  

   bedded 
  sandstones 
  and 
  conglomerates, 
  which 
  form 
  the 
  base 
  of 
  the 
  

   Trias 
  in 
  this 
  part 
  of 
  the 
  country, 
  and 
  which 
  are 
  doubtless 
  homo- 
  

   taxial 
  with 
  the 
  typical 
  Bunter 
  Conglomerate 
  of 
  South 
  Staffordshire, 
  

   Shropshire, 
  and 
  Cheshire. 
  These 
  sandstones 
  and 
  conglomerates 
  

   are 
  about 
  120 
  feet 
  in 
  thickness 
  on 
  the 
  extreme 
  margin 
  of 
  the 
  Coal- 
  

   field, 
  but 
  when 
  traced 
  eastward 
  for 
  two 
  or 
  three 
  miles, 
  by 
  the 
  aid 
  

   of 
  several 
  small 
  outliers, 
  they 
  are 
  found 
  to 
  thin 
  out 
  rapidly, 
  and, 
  

   Q. 
  J. 
  G. 
  S. 
  No. 
  177. 
  u 
  

  

  