﻿STRUCTURE 
  AND 
  CONDITIONS 
  AFFECTING 
  PRESENCE 
  OF 
  OIL. 
  79 
  

  

  CONCLUSIONS 
  REGARDING 
  FUTURE 
  DEVELOPMENT. 
  

  

  On 
  account 
  of 
  the 
  greater 
  intensity 
  of 
  the 
  folding 
  and 
  the 
  lack 
  of 
  

   the 
  thick, 
  more 
  or 
  less 
  unaltered 
  diatomaceous 
  deposits 
  which 
  are 
  

   found 
  associated 
  with 
  all 
  the 
  proved 
  productive 
  fields 
  in 
  this 
  dis- 
  

   trict, 
  the 
  indications 
  are 
  not 
  so 
  encouraging 
  for 
  good 
  wells 
  in 
  the 
  

   territory 
  northeast 
  of 
  the 
  head 
  of 
  the 
  Santa 
  Maria 
  Valley 
  as 
  they 
  are 
  

   in 
  certain 
  other 
  portions 
  of 
  the 
  Lompoc 
  and 
  Guadalupe 
  quadrangles. 
  

   The 
  areas 
  in 
  the 
  region 
  of 
  the 
  San 
  Rafael 
  Mountains 
  which 
  offer 
  the 
  

   most 
  inducements 
  for 
  testing 
  by 
  the 
  drill 
  are 
  as 
  follows 
  : 
  

  

  1. 
  North 
  and 
  northwest 
  of 
  Sisquoc 
  post-office, 
  along 
  the 
  anticlines 
  

   shown 
  on 
  the 
  map 
  (PL 
  I, 
  in 
  pocket). 
  There 
  are 
  one 
  or 
  two 
  local 
  

   anticlines 
  not 
  shown, 
  which 
  might 
  also 
  be 
  prospected 
  with 
  good 
  

   results. 
  The 
  hard 
  shales 
  exposed 
  in 
  this 
  region 
  are 
  probably 
  lower 
  

   Monterey 
  and, 
  if 
  such, 
  do 
  not 
  offer 
  as 
  much 
  promise 
  of 
  great 
  accu- 
  

   mulations 
  of 
  oil 
  at 
  their 
  base 
  as 
  if 
  they 
  were 
  overlain 
  by 
  the 
  upper 
  

   part 
  'of 
  the 
  formation. 
  The 
  strata 
  in 
  the 
  region 
  above 
  the 
  head- 
  

   waters 
  of 
  Round 
  Corral 
  Canyon 
  and 
  Asphaltum 
  Creek 
  are 
  too 
  sharply 
  

   folded 
  to 
  give 
  much 
  hope 
  of 
  the 
  retention 
  of 
  large 
  deposits 
  of 
  petro- 
  

   leum. 
  The 
  asphaltum 
  deposits 
  here 
  and 
  to 
  the 
  southeast 
  indicate 
  

   that 
  the 
  Miocene 
  was 
  at 
  one 
  time 
  highly 
  petroliferous, 
  but 
  that 
  at 
  

   least 
  a 
  considerable 
  portion 
  of 
  the 
  oil 
  has 
  escaped. 
  

  

  2. 
  In 
  the 
  Monterey 
  area 
  bordering 
  the 
  head 
  of 
  the 
  Santa 
  Maria 
  

   Valley 
  on 
  the 
  northeast, 
  both 
  west 
  and 
  east 
  of 
  Tepusquet 
  Creek, 
  

   wherever 
  the 
  anticlines 
  are 
  not 
  so 
  sharply 
  folded 
  as 
  to 
  give 
  indica- 
  

   tions 
  of 
  probable 
  loss 
  of 
  their 
  petroleum 
  content 
  by 
  excessive 
  frac- 
  

   turing. 
  The 
  surface 
  evidence 
  of 
  petroleum 
  in 
  this 
  general 
  Monterey 
  

   area 
  is 
  greatest 
  in 
  the 
  southeastern 
  or 
  more 
  sharply 
  folded 
  portion, 
  

   but 
  for 
  obvious 
  reasons 
  it 
  seems 
  likely 
  that 
  the 
  chances 
  for 
  the 
  

   accumulation 
  of 
  economically 
  important 
  deposits 
  of 
  petroleum 
  are 
  

   greatest 
  in 
  the 
  less 
  compressed 
  area 
  northwest 
  of 
  Labrea 
  Creek. 
  

  

  3. 
  The 
  region 
  about 
  Fugler 
  Point 
  and 
  thence 
  southward 
  and 
  

   southeastward 
  toward 
  Sisquoc. 
  This 
  territory 
  is 
  doubtless 
  under- 
  

   lain 
  by 
  the 
  oil-bearing 
  beds, 
  but 
  at 
  what 
  depth 
  it 
  is 
  not 
  possible 
  to 
  

   calculate 
  owing 
  to 
  the 
  fact 
  that 
  the 
  Monterey 
  and 
  Fernando 
  are 
  cov- 
  

   ered 
  by 
  later 
  sediments. 
  The 
  occurrence 
  of 
  asphaltum 
  at 
  Fugler 
  

   Point 
  is 
  analogous 
  to 
  that 
  at 
  the 
  east 
  end 
  of 
  Graciosa 
  Ridge, 
  near 
  

   which 
  very 
  productive 
  territory 
  has 
  been 
  developed. 
  The 
  local 
  dip 
  

   at 
  the 
  point 
  (25° 
  SW.) 
  would 
  indicate 
  that 
  the 
  best 
  places 
  to 
  drill 
  

   would 
  be 
  east 
  of 
  the 
  asphaltum 
  deposit 
  ; 
  but 
  the 
  uncertainty 
  whether 
  

   this 
  dip 
  is 
  anything 
  more 
  than 
  a 
  local 
  tilting 
  of 
  the 
  Fernando 
  is 
  so 
  

   great 
  that 
  conclusions 
  regarding 
  the 
  best 
  localities 
  for 
  exploitation 
  

   in 
  this 
  immediate 
  vicinity 
  are 
  extremely 
  hazardous. 
  Southwest 
  of 
  

   Fugler 
  Point, 
  however, 
  there 
  is 
  evidence 
  of 
  the 
  presence 
  of 
  a 
  low 
  

  

  