﻿Report 
  of 
  the 
  State 
  Geologist. 
  403 
  

  

  in 
  the 
  region 
  southeast 
  of 
  Altaniont, 
  for 
  I 
  saw 
  several 
  exposures 
  

   of 
  its 
  horizon 
  in 
  which 
  it 
  was 
  not 
  characterized. 
  The 
  southern- 
  

   most 
  occurrence 
  I 
  have 
  noted 
  is 
  along 
  the 
  road 
  on 
  the 
  slope 
  

   three-quarters 
  of 
  a 
  mile 
  south 
  of 
  Callanarvs 
  Corners, 
  where 
  its 
  

   thickness 
  is 
  about 
  six 
  feet. 
  In 
  Greene 
  and 
  Ulster 
  counties 
  some 
  

   of 
  the 
  impure 
  basal 
  beds 
  of 
  the 
  Onondaga 
  limestone 
  resemble 
  

   Schoharie 
  grit, 
  but 
  they 
  are 
  less 
  arenaceous 
  and 
  appear 
  to 
  lack 
  

   the 
  characteristic 
  Schoharie 
  grit 
  fauna. 
  Southwest 
  of 
  Coxsackie 
  

   there 
  are 
  several 
  exposures 
  in 
  which 
  typical 
  Corniferous 
  lime- 
  

   stones 
  were 
  seen 
  lying 
  directly 
  on 
  the 
  Esopus 
  slate, 
  and 
  here 
  the 
  

   Schoharie 
  is 
  undoubtedly 
  absent. 
  

  

  Cauda-galli 
  grit=Esopus 
  slate. 
  — 
  In 
  order 
  to 
  have 
  a 
  locality 
  

   designation 
  for 
  the 
  Cauda-galli 
  grit, 
  the 
  State 
  Geologist 
  has 
  sug- 
  

   gested 
  the 
  name 
  Esopus 
  slate, 
  from 
  the 
  Esopus 
  settlement, 
  of 
  

   which 
  the 
  portion 
  now 
  known 
  as 
  Kingston 
  is 
  largely 
  on 
  this 
  forma- 
  

   tion; 
  ard 
  the 
  Esopus 
  creek, 
  along 
  which 
  for 
  some 
  miles 
  above 
  

   Saugerties 
  the 
  slates 
  are 
  particularly 
  well 
  exposed. 
  The 
  formation 
  

   is, 
  in 
  greater 
  part, 
  a 
  fine-grained 
  arenaceous 
  deposit 
  of 
  dark-gray 
  

   color, 
  and 
  with 
  more 
  or 
  less 
  completely 
  developed 
  slaty 
  cleavage. 
  

   About 
  Schoharie 
  and 
  westward 
  to 
  its 
  termination 
  it 
  is 
  a 
  moder- 
  

   ately 
  hard, 
  sandy 
  shale 
  varying 
  in 
  color 
  from 
  dark 
  gray 
  or 
  buff 
  to 
  

   light 
  olive, 
  but 
  east 
  and 
  south 
  with 
  increasing 
  thickness 
  the 
  color 
  

   becomes 
  darker, 
  the 
  texture 
  of 
  the 
  rock 
  is 
  harder 
  and 
  slaty 
  cleavage 
  

   is 
  general. 
  In 
  the 
  Held 
  erb 
  erg 
  mountains 
  and 
  westward 
  the 
  shales 
  

   constitute 
  a 
  slope 
  between 
  shelves 
  of 
  Onondaga 
  limestone 
  above, 
  

   and 
  Oriskany 
  sandstone 
  below, 
  as 
  shown 
  in 
  figures 
  4 
  and 
  5, 
  but 
  

   from 
  the 
  southern 
  part 
  of 
  Albany 
  county, 
  southward, 
  it 
  consti- 
  

   tutes 
  high 
  rough 
  ridges. 
  

  

  Notwithstanding 
  the 
  slaty 
  cleavage, 
  bedding 
  planes 
  are 
  occa- 
  

   sionally 
  distinct 
  and 
  they 
  usually 
  exhibit 
  impressions 
  of 
  the 
  

   Spirophyton 
  cauda-galli 
  which 
  are 
  seen 
  so 
  often 
  on 
  the 
  shaly 
  

   beds 
  westward. 
  This 
  is 
  particularly 
  the 
  case 
  where 
  the 
  beds 
  are 
  

   slightly 
  quartzitic, 
  a 
  feature 
  not 
  unusual 
  in 
  the 
  upper 
  portion 
  of 
  

   the 
  formation 
  notably 
  about 
  Clarksville 
  and 
  near 
  Leeds. 
  The 
  

   formation 
  has 
  a 
  thickness 
  of 
  110 
  feet 
  at 
  Clarksville 
  and 
  is 
  very 
  

   finely 
  exposed 
  in 
  the 
  vicinity 
  of 
  the 
  village 
  and 
  down 
  the 
  creek 
  r 
  

   from 
  the 
  quartzitic 
  members 
  lying 
  just 
  below 
  the 
  Schoharie 
  grit 
  

   at 
  the 
  old 
  mill, 
  to 
  the 
  members 
  with 
  strong 
  slaty 
  cleavage 
  in 
  

   columnar 
  walls 
  along 
  the 
  gorge 
  half 
  a 
  mile 
  below. 
  

  

  