﻿124 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  beds 
  of 
  shale 
  finally 
  merge 
  into 
  hard, 
  coarse 
  grained, 
  cross- 
  

   bedded 
  gray 
  sandstones.' 
  a 
  

  

  Directly 
  above 
  the 
  highway 
  is 
  a 
  five-foot 
  ledge 
  of 
  thin, 
  green- 
  

   ish 
  sandstone, 
  showing 
  some 
  crossbedding, 
  which 
  resembles 
  the 
  

   Chemung 
  of 
  the 
  western 
  part 
  of 
  Delaware 
  county. 
  About 
  20 
  

   feet 
  of 
  these 
  sandstones 
  which 
  are 
  partly 
  covered 
  are 
  shown 
  

   opposite 
  the 
  southern 
  end 
  of 
  the 
  lake. 
  The 
  grains 
  of 
  sand 
  

   are 
  noticeably 
  finer 
  than 
  in 
  those 
  sandstones 
  near 
  the 
  same 
  

   stratigraphic 
  position 
  on 
  the 
  southeastern 
  side 
  of 
  the 
  Delaware 
  

   river. 
  This 
  lake 
  and 
  the 
  rocks 
  about 
  it 
  are 
  near 
  the 
  central 
  

   part 
  of 
  the 
  area 
  colored 
  as 
  Chemung 
  on 
  the 
  Geologic 
  map 
  of 
  

   New 
  York. 
  At 
  the 
  western 
  side 
  of 
  the 
  highway 
  opposite 
  the 
  

   house 
  of 
  Mr 
  George 
  Young 
  and 
  the 
  lake 
  is 
  a 
  most 
  interesting 
  

   exposure 
  of 
  about 
  seven 
  feet 
  of 
  shales, 
  the 
  base 
  of 
  which 
  is 
  20 
  

   feet 
  above 
  the 
  level 
  of 
  the 
  lake. 
  The 
  section 
  is 
  as 
  follows: 
  

  

  60' 
  

  

  26V 
  

  

  20' 
  

  

  33'+ 
  

  

  3' 
  

  

  W 
  

  

  1 
  lf 
  

  

  20' 
  

  

  SPRING 
  LA.KE 
  SECTION 
  

  

  Summit 
  of 
  hill 
  on 
  highway 
  

   Covered 
  

  

  Thin 
  bedded 
  sandstones 
  to 
  coarse,arenace- 
  ^ 
  

   ous 
  shales 
  - 
  I 
  

  

  Green 
  argillaceous 
  shales 
  

  

  Eed 
  argillaceous 
  shales 
  

  

  Highway 
  level 
  

  

  y 
  Fossils 
  

  

  Thin, 
  greenish 
  sandstones 
  partly 
  covered 
  

  

  Level 
  of 
  Spring 
  lake, 
  720 
  feet 
  above 
  Delhi 
  

   This 
  outcrop 
  is 
  a 
  very 
  interesting 
  one 
  for 
  above 
  a 
  thin 
  stratum 
  

   of 
  red, 
  argillaceous 
  shale, 
  green 
  shales 
  occur 
  and 
  above 
  these, 
  

  

  a 
  Am. 
  jour, 
  science, 
  3d 
  ser., 
  45 
  : 
  204-5. 
  See 
  fig. 
  1 
  on 
  p. 
  204 
  and 
  fig. 
  2, 
  section 
  B 
  on 
  p. 
  205 
  for 
  a 
  diagram- 
  

   matic 
  representation 
  of 
  the 
  merging 
  of 
  the 
  structural 
  conditions 
  of 
  the 
  Chemung 
  into^those 
  of 
  the 
  

   Catskill. 
  

  

  