﻿436 
  PROCEEDINGS 
  OF 
  THE 
  GEOLOGICAL 
  SOCIETY. 
  [Julie 
  22, 
  

  

  a 
  S.S.E. 
  direction, 
  and 
  towards 
  the 
  sea 
  in 
  their 
  usual 
  course*. 
  This 
  

   dip 
  to 
  the 
  S.S.E., 
  however, 
  soon 
  disappears, 
  and 
  the 
  limestones 
  

   (cornstones) 
  again 
  make 
  their 
  appearance 
  in 
  the 
  ridge 
  lying 
  south 
  

   of 
  the 
  coast, 
  extending 
  from 
  Clarklie, 
  near 
  Burghead, 
  eastwards 
  to 
  

   about 
  half 
  a 
  mile 
  beyond 
  Inverugie, 
  where 
  they 
  are 
  extensively 
  

   wrought, 
  and 
  have 
  the 
  usual 
  N.N.W. 
  dip. 
  Under 
  them, 
  on 
  their 
  

   south 
  as 
  well 
  as 
  their 
  north 
  side, 
  the 
  reptiliferous 
  sandstones 
  of 
  Los- 
  

   siemouth 
  and 
  the 
  footprint-bearing 
  sandstones 
  of 
  Cummingstone 
  

   occur. 
  

  

  A 
  slight 
  synclinal 
  fold 
  makes 
  its 
  appearance 
  a 
  short 
  distance 
  to 
  

   the 
  south 
  of 
  the 
  Cummingstone 
  quarries 
  ; 
  and 
  on 
  the 
  south 
  side 
  of 
  

   the 
  Inverugie 
  ridge, 
  in 
  the 
  valley 
  separating 
  this 
  from 
  the 
  Quarry 
  

   "Wood 
  range, 
  runs 
  the 
  fault 
  before 
  alluded 
  to 
  as 
  separating 
  the 
  

   Spynie 
  rocks 
  from 
  those 
  of 
  Lossiemouth. 
  In 
  the 
  ridge, 
  of 
  which 
  

   Inverugie 
  forms 
  a 
  part, 
  the 
  limestones 
  are 
  again 
  the 
  highest 
  strata, 
  

   no 
  solid 
  rock 
  occurring 
  above 
  them. 
  (See 
  fig. 
  1.) 
  

  

  This 
  Inverugie 
  limestone 
  is 
  directly 
  on 
  the 
  line 
  of 
  strike 
  of 
  that 
  

   of 
  Lossiemouth, 
  and 
  it 
  is, 
  no 
  doubt, 
  a 
  continuation 
  of 
  that 
  band. 
  

   They 
  are, 
  however, 
  separated 
  by 
  denudation 
  ; 
  and 
  it 
  presents, 
  at 
  its 
  

   eastern 
  end, 
  an 
  escarpment 
  similar 
  to 
  that 
  which 
  marks 
  the 
  western 
  

   termination 
  of 
  the 
  limestone-area 
  south 
  of 
  Elgin. 
  In 
  its 
  compo- 
  

   sition 
  the 
  limestone 
  of 
  the 
  Inverugie 
  range 
  is 
  identical 
  with 
  that 
  of 
  

   Bilboa 
  Hall 
  and 
  Cothall, 
  and 
  is 
  doubtless 
  a 
  continuation 
  of 
  the 
  same 
  

   stratum. 
  The 
  small 
  patches 
  of 
  limestone 
  (cornstone) 
  at 
  Spynie 
  and 
  

   Lossiemouth 
  are 
  much 
  less 
  calcareous 
  in 
  their 
  nature 
  than 
  those 
  

   occurring 
  in 
  the 
  Elgin 
  district. 
  This 
  difference 
  is, 
  however, 
  simply 
  

   the 
  result 
  of 
  weathering 
  ; 
  for 
  the 
  more 
  calcareous 
  limestone 
  has 
  a 
  

   covering 
  of 
  " 
  Till" 
  upon 
  it, 
  while 
  that 
  of 
  Spynie 
  and 
  Lossiemouth 
  is 
  

   altogether 
  exposed. 
  At 
  the 
  latter 
  locality 
  the 
  influence 
  of 
  the 
  sea 
  

   is 
  now 
  exercised 
  upon 
  the 
  limestone, 
  and 
  at 
  a 
  comparatively 
  recent 
  

   period 
  that 
  of 
  Spynie 
  was 
  also 
  subjected 
  to 
  marine 
  influences. 
  

  

  Fig. 
  3. 
  — 
  Section 
  on 
  the 
  Strike 
  from 
  Burghead 
  to 
  Lossiemouth 
  

  

  (9 
  miles). 
  

  

  W. 
  E. 
  

  

  Burghead. 
  Clarklie. 
  Inverugie. 
  Lossiemouth. 
  

  

  I 
  ! 
  „ 
  < 
  ! 
  

  

  Fault. 
  b 
  Fault, 
  a 
  

  

  a. 
  Limestone 
  (cornstone). 
  b. 
  Reptiliferous 
  sandstone. 
  c. 
  Pebbly 
  sandstone. 
  

  

  Parallel 
  to 
  the 
  north 
  and 
  south 
  fault 
  alluded 
  to 
  as 
  occurring 
  west 
  

   of 
  Lossiemouth, 
  and 
  bringing 
  the 
  limestone 
  (cornstone) 
  in 
  contact 
  

   with 
  the 
  red 
  sandstone, 
  is 
  another 
  fault, 
  seen 
  also 
  on 
  the 
  coast 
  

   about 
  three-quarters 
  of 
  a 
  mile 
  east 
  of 
  Burghead. 
  Here 
  the 
  chcrty 
  

   sandstones 
  on 
  the 
  east 
  side 
  of 
  the 
  fault 
  come 
  against 
  the 
  pebbly 
  

   sandstones 
  which 
  are 
  so 
  well 
  developed 
  in 
  the 
  neighbourhood 
  of 
  

  

  * 
  See 
  Sir 
  E. 
  T. 
  Murchison's 
  Memoir, 
  Quart. 
  Journ. 
  Geol. 
  Soc. 
  vol. 
  xv. 
  p. 
  429. 
  

  

  