﻿210 
  H. 
  E. 
  Gregory 
  — 
  Geologic 
  Sketch 
  of 
  

  

  Feet 
  

  

  32. 
  Limestone; 
  begins 
  as 
  limy 
  sandstone 
  and 
  ends 
  as 
  lime- 
  

  

  stone; 
  first 
  beds 
  buff 
  to 
  gray; 
  last 
  beds 
  blue-gray 
  (fresh 
  

   fractured) 
  ; 
  beds 
  even 
  ; 
  2"-3'; 
  heaviest 
  beds 
  near 
  bot- 
  

   tom 
  ; 
  much 
  mica 
  on 
  bedding 
  planes 
  ; 
  fracture 
  uneven 
  

   and 
  often 
  breaks 
  in 
  rounded 
  forms 
  ; 
  between 
  beds 
  a 
  

   parting 
  of 
  gray 
  shale. 
  Top 
  contains 
  limonite 
  concretions 
  

   like 
  No. 
  33, 
  and 
  is 
  weathered 
  brown 
  50 
  

  

  33. 
  Sandstone; 
  fine-grained 
  at 
  top, 
  medium 
  at 
  bottom; 
  quartz 
  

   grains 
  rounded, 
  not 
  colored 
  ; 
  a 
  few 
  tiny 
  muscovite 
  

   flakes 
  and 
  occasional 
  black 
  specks 
  of 
  carbonaceous 
  

   matter. 
  Much 
  white 
  lime 
  or 
  decomposed 
  feldspar. 
  Rare 
  

   pea-sized 
  pebbles 
  of 
  quartz; 
  gray-white 
  on 
  weathered 
  sur- 
  

   faces 
  ; 
  soft, 
  weather-rounded; 
  bedding 
  massive; 
  cross- 
  

   bedding 
  poorly 
  developed 
  ; 
  contains 
  seams 
  of 
  limonite- 
  

   stained 
  rock; 
  one 
  little 
  streak 
  of 
  quartz 
  showing 
  garnet; 
  

   round 
  limonite 
  concretions, 
  size 
  of 
  pinhead 
  to 
  small 
  pea; 
  

   at 
  130' 
  bed 
  of 
  shale 
  about 
  32' 
  thick. 
  Shale 
  is 
  gray-drab 
  

   to 
  drab 
  ; 
  contains 
  carbonaceous 
  matter, 
  clear 
  quartz 
  

   grains, 
  and 
  occasional 
  flakes 
  of 
  mica. 
  Strike 
  N. 
  24° 
  W. 
  ; 
  

  

  dip 
  N.E. 
  / 
  43° 
  275 
  

  

  Section 
  C. 
  

   Taana 
  Bay. 
  

  

  Strike 
  JV. 
  ^5° 
  W; 
  dip 
  JSf. 
  E. 
  / 
  50°. 
  

  

  Feet 
  

  

  1. 
  White, 
  cross-bedded 
  sandstone 
  10 
  

  

  2. 
  Shale 
  and 
  thin 
  sandstone 
  ; 
  a 
  few 
  very 
  thin 
  carbonaceous 
  

  

  layers 
  ,_ 
  . 
  .- 
  20 
  

  

  3. 
  Sandstone; 
  white, 
  cross-bedded 
  . 
  60 
  

  

  4. 
  Sandstone 
  and 
  sandy 
  shales; 
  thin-bedded; 
  with 
  plant 
  

  

  fragments 
  irregularly 
  distributed 
  40 
  

  

  5. 
  Shale, 
  carbonaceous 
  ; 
  coal 
  in 
  wavy 
  lenses 
  constitutes 
  about 
  

  

  js 
  of 
  the 
  stratum 
  ; 
  the 
  remainder 
  consists 
  of 
  lignite 
  inti- 
  

   mately 
  mixed 
  with 
  shale 
  and 
  sandstone 
  ; 
  coal 
  appears 
  to 
  

   be 
  of 
  good 
  quality 
  . 
  _ 
  4 
  

  

  6. 
  Drab 
  shales 
  and 
  sandstone 
  like 
  No. 
  8 
  20 
  

  

  7. 
  Carbonaceous 
  bed, 
  one-half 
  shale; 
  abundant 
  pyrite. 
  4 
  

  

  8. 
  Sandstone, 
  gray, 
  thin-bedded, 
  %"-2"', 
  shales, 
  black 
  and 
  

  

  drab 
  ; 
  wavy, 
  cross-bedded 
  ; 
  concretionary 
  ; 
  with 
  ripple- 
  

   marks 
  arranged 
  in 
  overlapping 
  patches 
  a 
  few 
  inches 
  in 
  

   diameter 
  ; 
  contains 
  muscovite 
  and 
  a 
  few 
  plant 
  impres- 
  

   sions 
  . 
  200 
  

  

  The 
  interleaving 
  lense 
  character 
  of 
  the 
  coal 
  is 
  well 
  shown 
  here 
  ; 
  

   500' 
  distant, 
  across 
  a 
  little 
  bay, 
  numbers 
  5 
  and 
  8 
  are 
  scarcely 
  rep- 
  

   resented 
  and 
  shale 
  occupies 
  nearly 
  the 
  whole 
  section. 
  

  

  