﻿32 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  ville 
  southward 
  where 
  the 
  shale 
  is 
  thickest 
  and 
  the 
  slope 
  is 
  not 
  so 
  

   great. 
  An 
  interesting 
  erosion 
  remnant, 
  or 
  outlier, 
  separated 
  from 
  

   the 
  main 
  mass 
  covers 
  several 
  square 
  miles 
  in 
  the 
  vicinity 
  of 
  Locust 
  

   Grove. 
  

  

  The 
  Utica 
  shale 
  is 
  here 
  not 
  highly 
  fossiliferous 
  although 
  certain 
  

   fossils 
  so 
  common 
  to 
  the 
  formation 
  may 
  be 
  found 
  in 
  nearly 
  every 
  

   exposure. 
  Among 
  these 
  are 
  the 
  Endoceras 
  proteiformc 
  

   of 
  the 
  chambered 
  cephalopods, 
  Triarthrus 
  becki 
  of 
  the 
  

   trilobites, 
  and 
  some 
  graptolites. 
  Animal 
  life 
  in 
  the 
  Trenton 
  ocean 
  

   was 
  very 
  prolific, 
  but 
  with 
  the 
  advent 
  of 
  the 
  muddy 
  Utica 
  sea 
  there 
  

   was 
  a 
  great 
  diminution 
  in 
  both 
  the 
  number 
  of 
  species 
  and 
  

   individuals. 
  

  

  Along 
  the 
  line 
  of 
  outcrop 
  the 
  shale 
  shows 
  a 
  notable 
  and 
  steady 
  

   decrease 
  in 
  thickness 
  toward 
  the 
  north. 
  Following 
  are 
  approxi- 
  

   mate 
  determinations 
  of 
  the 
  thickness 
  within 
  the 
  quadrangle 
  from 
  

   south 
  to 
  north. 
  

  

  Feet 
  

  

  Along 
  Moose 
  creek 
  300 
  

  

  At 
  Constableville 
  260 
  

  

  At 
  Turin 
  230 
  

  

  At 
  Houseville 
  200 
  

  

  Along 
  Atwater 
  creek 
  180 
  

  

  Southeasterly 
  along 
  the 
  line 
  of 
  outcrop 
  the 
  Utica 
  increases 
  in 
  

   thickness. 
  Near 
  Remsen 
  it 
  is 
  over 
  300 
  feet 
  and 
  near 
  Little 
  Falls 
  

   about 
  600 
  feet. 
  Westward 
  in 
  Oswego 
  county 
  it 
  shows 
  a 
  thickness 
  

   of 
  180 
  feet 
  at 
  Central 
  Square; 
  120 
  feet 
  at 
  Fulton 
  and 
  113 
  feet 
  at 
  

   Stillwater 
  in 
  the 
  deep 
  wells. 
  Thus 
  it 
  is 
  evident, 
  in 
  a 
  general 
  way 
  

   along 
  the 
  southwestern 
  Adirondacks, 
  that 
  the 
  Utica 
  is 
  thinnest 
  

   w^here 
  the 
  Trenton 
  is 
  thickest 
  and 
  vice 
  versa, 
  the 
  two 
  formations 
  

   having 
  nearly 
  the 
  same 
  thickness 
  on 
  the 
  Remsen 
  quadrangle. 
  

  

  Lorraine 
  shales 
  and 
  sandstones 
  

  

  The 
  Lorraine 
  formation 
  received 
  its 
  name 
  from 
  the 
  town 
  of 
  Lor- 
  

   raine 
  in 
  Jefferson 
  county, 
  some 
  30 
  miles 
  northwest 
  of 
  Port 
  Leyden. 
  

   The 
  rocks 
  included 
  under 
  this 
  heading 
  are 
  the 
  same 
  as 
  those 
  of 
  the 
  

   old 
  " 
  Hudson 
  River 
  group 
  " 
  of 
  Vanuxem's 
  report.^ 
  In 
  the 
  future 
  

   the 
  Lorraine 
  beds 
  will 
  doubtless 
  be 
  subdivided, 
  but 
  more 
  detailed 
  

   work 
  over 
  a 
  wider 
  territory 
  must 
  be 
  done 
  before 
  such 
  subdivision 
  

   is 
  attempted. 
  In 
  the 
  meantime, 
  all 
  the 
  strata 
  lying 
  between 
  the 
  

  

  iGeol 
  N, 
  y. 
  3d 
  Dist. 
  1843. 
  p. 
  6a 
  

  

  