﻿Titicaca 
  Island 
  and 
  Adjoining 
  Areas. 
  209 
  

  

  Feet 
  

  

  13. 
  Sandstone; 
  massive; 
  medium-grained; 
  quartz, 
  lime 
  and 
  

   limonite, 
  and 
  a 
  green 
  stone 
  in 
  purple 
  cement; 
  crumbles 
  

   on 
  weathering; 
  dip 
  34° 
  in 
  30' 
  (probably 
  fault 
  between 
  

   numbers 
  13 
  and 
  14) 
  6 
  

  

  14. 
  Shale 
  ; 
  maroon 
  and 
  gray-green 
  ; 
  one 
  2' 
  pinkish 
  bed 
  ; 
  

   lenses 
  of 
  coal 
  45 
  

  

  15. 
  Sandstone; 
  or 
  arenaceous 
  limestone; 
  medium 
  grained; 
  

   beds 
  1-3'; 
  hard, 
  weathers 
  in 
  checks. 
  Dip 
  N. 
  E./45° 
  13 
  

  

  16. 
  Coal 
  (bloom); 
  clean; 
  strike 
  N. 
  25° 
  W. 
  ; 
  dip 
  N.E. 
  /47° 
  1| 
  

  

  17. 
  Limestone, 
  gray; 
  thin-bedded; 
  with 
  drab 
  shale 
  60 
  

  

  1 
  8. 
  Shale 
  ; 
  gray 
  -green 
  ; 
  talus-covered 
  6 
  

  

  19. 
  Limestone; 
  impure; 
  has 
  plant 
  fragments 
  2 
  

  

  20. 
  Shale; 
  argillaceous; 
  drab-gray; 
  capped 
  by 
  2' 
  of 
  arena- 
  

   ceous 
  shale 
  filled 
  with 
  plant 
  remains 
  _. 
  8 
  

  

  21. 
  Sandstone; 
  fine-grained; 
  rounded 
  quartz 
  pebbles; 
  calca- 
  

   reous; 
  general 
  color 
  gray-white; 
  included 
  beds 
  and 
  cap 
  

   of 
  gray-green 
  ; 
  soft, 
  thin, 
  even 
  beds; 
  one 
  belt 
  of 
  gray 
  

   shale; 
  very 
  few 
  round, 
  pea-sized 
  limonite 
  concretions. 
  

   Dip 
  N.E./ 
  40° 
  85 
  

  

  22. 
  Sandstone; 
  white; 
  coarse 
  to 
  medium, 
  with 
  clear, 
  suban- 
  

   gular 
  quartz 
  pebbles. 
  Some 
  bands 
  almost 
  a 
  conglomer- 
  

   ate. 
  Soft, 
  massive, 
  weathers 
  in 
  rounded 
  knobs. 
  Hard 
  to 
  

   tell 
  from 
  No. 
  13 
  at 
  contact, 
  but 
  No. 
  13 
  is 
  finer 
  and 
  has 
  

   lines 
  of 
  shale 
  _. 
  100 
  

  

  23. 
  Coal. 
  Four 
  feet 
  bone 
  in 
  middle 
  ; 
  weathered 
  grav 
  ; 
  fair 
  

  

  quality. 
  Dip 
  N.E. 
  / 
  39° 
  _ 
  /. 
  8 
  

  

  24. 
  Limestone; 
  thin-bedded, 
  grading 
  into 
  sandstone 
  at 
  top; 
  

  

  interbedded 
  with 
  shale 
  ; 
  much 
  checked 
  or 
  broken 
  ; 
  

   weathers 
  gray 
  or 
  red-brown 
  30 
  

  

  25. 
  Sandstone; 
  fine 
  grain 
  ; 
  clear 
  quartz, 
  well-rounded 
  and 
  

  

  white 
  flakes 
  ; 
  more 
  lime 
  near 
  top 
  than 
  bottom. 
  Color 
  

   white 
  with 
  some 
  buff-yellow 
  bands 
  ; 
  massive 
  ; 
  many 
  

   cracks 
  across 
  bedding. 
  Like 
  No. 
  33 
  except 
  for 
  absence 
  

   of 
  specks 
  of 
  carbonaceous 
  matter 
  70 
  

  

  26. 
  Sandstone; 
  fine-grained; 
  clear 
  quartz, 
  rounded 
  and 
  white 
  

   flakes; 
  weathers 
  yellow-brown; 
  fresh 
  buff-gray. 
  Even- 
  

   bedded 
  l"-3'. 
  One 
  soft 
  lens 
  of 
  buff 
  -brown; 
  at 
  top 
  is 
  a 
  

   yellow 
  band 
  of 
  limonite 
  __ 
  __ 
  ., 
  35 
  

  

  27. 
  Like 
  No. 
  29, 
  but 
  limestone 
  grades 
  into 
  a 
  sandstone 
  with 
  

   fine, 
  rounded 
  quartz 
  grains 
  at 
  top; 
  brownish 
  gray; 
  mica 
  

  

  on 
  bedding 
  planes 
  .._ 
  70 
  

  

  28. 
  Gray 
  shale; 
  contains 
  lenses 
  of 
  limestone 
  like 
  No. 
  32 
  from 
  

   3" 
  to 
  1' 
  thick 
  ; 
  has 
  two 
  seams 
  of 
  coal, 
  one 
  \\" 
  about 
  11' 
  

   from 
  bottom, 
  the 
  other 
  13"; 
  very 
  clean 
  bloom 
  at 
  top 
  16 
  

  

  29. 
  Limestone 
  and 
  shale; 
  limestone 
  like 
  No. 
  30. 
  Slate 
  green- 
  

   ish 
  gray; 
  very 
  thin-bedded; 
  mica 
  on 
  bedding 
  planes 
  61 
  

  

  30. 
  Sandy 
  limestone; 
  buff-gray; 
  weathers 
  mottled 
  gray 
  and 
  

   red-brown. 
  Thin, 
  regu.lar 
  bedding 
  30 
  

  

  31. 
  Shale; 
  gray; 
  with 
  2' 
  red-brown 
  limestone 
  8' 
  from 
  bottom, 
  25 
  

  

  