﻿Titicaca 
  Island 
  and 
  Adjoining 
  Areas. 
  207 
  

  

  Feet 
  

  

  1. 
  Limestone 
  ; 
  dense, 
  blue-gray, 
  fossiliferous, 
  in 
  beds 
  2'-6' 
  

  

  thick 
  ; 
  numerous 
  fractures 
  with 
  slight 
  displacement. 
  

   Strike 
  N. 
  60° 
  W., 
  dip 
  S.W. 
  _ 
  340 
  

  

  2. 
  Covered 
  ; 
  probable 
  locus 
  of 
  north-south 
  fault 
  zone 
  

  

  3. 
  Limestone 
  ; 
  massive, 
  blue-gray 
  ; 
  in 
  beds 
  2-6' 
  thick 
  ; 
  sep- 
  

   arated 
  by 
  J"— 
  3" 
  beds 
  of 
  calcareous 
  sandstone 
  ; 
  weathers 
  

   like 
  ornamental 
  moulding 
  ; 
  abundantly 
  fossiliferous. 
  

   Strike 
  N. 
  60° 
  W., 
  dip 
  S.W. 
  Z 
  20° 
  250 
  

  

  4. 
  Like 
  Number 
  3. 
  Dip 
  S.E. 
  / 
  10°-20° 
  200 
  

  

  5. 
  Sandstone 
  ; 
  brown 
  with 
  yellow 
  and 
  green 
  tones 
  ; 
  calcar- 
  

   eous 
  ; 
  in 
  beds 
  6"-3' 
  100 
  

  

  6. 
  Limestone 
  ; 
  blue 
  and 
  purple 
  ; 
  with 
  flat 
  pancakes 
  and 
  

  

  cvlindrical 
  concretions 
  of 
  arenaceous 
  material 
  ; 
  dip 
  

  

  E. 
  /20° 
  50 
  

  

  7. 
  Limestone 
  and 
  shaly 
  sandstone, 
  interbedded 
  ; 
  fossilifer- 
  

  

  ous. 
  Dip 
  E./4(i° 
  150 
  

  

  8. 
  Limestone 
  ; 
  gray 
  ; 
  calcareous 
  sandstone 
  ; 
  yellow-gray, 
  

  

  calcareous 
  shales 
  ; 
  in 
  beds 
  3"-l' 
  thick 
  ; 
  forms 
  wide 
  

   bench. 
  Dip 
  E. 
  / 
  50° 
  r 
  200 
  

  

  9. 
  Sandstone, 
  in 
  beds 
  4-10' 
  ; 
  medium- 
  to 
  fine-grained, 
  

   loosely 
  cemented, 
  quartz 
  grains, 
  some 
  black 
  grains, 
  gray 
  

   with 
  greenish 
  and 
  yellowish 
  tones 
  ; 
  slightly 
  cross- 
  

   bedded 
  ; 
  one 
  layer 
  of 
  dark 
  red 
  shale 
  included 
  70 
  

  

  10. 
  Shale 
  ; 
  dark 
  red 
  ; 
  argillaceous 
  and 
  arenaceous 
  ; 
  includes 
  

  

  10" 
  band 
  of 
  gray 
  sandstone 
  ; 
  rare 
  fossils 
  25 
  

  

  11. 
  Sandstone 
  ; 
  coarse, 
  cross-bedded 
  ; 
  brown, 
  gray, 
  green 
  ; 
  

   with 
  lenses 
  of 
  shale 
  . 
  _ 
  4 
  

  

  12. 
  Shale 
  ; 
  red, 
  drab, 
  green 
  ; 
  lenses 
  and 
  thin 
  bands 
  of 
  fine 
  

   sandstone 
  and 
  2' 
  bed 
  of 
  coarse, 
  cross-bedded 
  sandstone. 
  30 
  

  

  13. 
  Sandstone 
  ; 
  gray 
  ; 
  coarse, 
  cross-bedded 
  ; 
  made 
  up 
  of 
  

  

  overlapping 
  sandstone 
  lenses 
  (l"-3") 
  with 
  plant 
  frag- 
  

   ments 
  . 
  6 
  

  

  14. 
  Shale 
  ; 
  argillaceous, 
  arenaceous 
  and 
  carbonaceous 
  ; 
  and 
  

   yellow 
  sandstone 
  in 
  thin 
  beds 
  including 
  \"-2" 
  beds 
  and 
  

   lenses 
  of 
  coal 
  ._ 
  14 
  

  

  15. 
  Shale 
  ; 
  argillaceous 
  ; 
  dark 
  red 
  and 
  drab 
  ; 
  w 
  T 
  ith 
  lenses 
  of 
  

   red-brown 
  sandstone 
  _ 
  30 
  

  

  16. 
  Sandstone 
  ; 
  brown, 
  coarse, 
  with 
  red 
  chert 
  pebbles 
  5 
  

  

  17. 
  Partly 
  covered. 
  Shales, 
  shaly 
  sandstone, 
  and 
  sandstone 
  

  

  in 
  thin 
  beds, 
  becoming 
  increasingly 
  arenaceous 
  with 
  

   depth. 
  A 
  few 
  thin 
  calcareous 
  shale 
  beds 
  included. 
  

   DipE./55° 
  . 
  160 
  

  

  18. 
  Sandstone; 
  white, 
  coarse, 
  even-grained 
  quartz; 
  cross- 
  

   bedded 
  ; 
  massive 
  and 
  composed 
  of 
  overlapping 
  lenses. 
  

   At 
  base 
  are 
  two 
  lenses 
  of 
  excessively 
  fine-grained, 
  

   white, 
  micaceous, 
  paper-thin 
  shales. 
  Dip 
  E. 
  / 
  50° 
  200 
  

  

  19. 
  Sandstone 
  ; 
  white 
  quartz, 
  cross-bedded 
  10 
  

  

  20. 
  Shale 
  ; 
  arenaceous, 
  paper-thin, 
  white 
  ; 
  with 
  plant 
  impres- 
  

   sions, 
  and 
  3 
  "-4" 
  lenses 
  of 
  concretionary 
  sandstone 
  ; 
  

   with 
  limonite 
  __ 
  __ 
  6 
  

  

  