﻿GEOLOGY 
  OF 
  WASHINGTON, 
  WAEREN 
  COUNTIES, 
  ETC. 
  509 
  

  

  ful 
  that 
  in 
  some 
  localities, 
  such 
  as 
  Whitehall 
  (where 
  we 
  have 
  

   made 
  a 
  beginning) 
  and 
  Minerva, 
  that 
  the 
  stratigraphy 
  can 
  be 
  

   worked 
  out. 
  But 
  the 
  problems 
  need 
  more 
  detailed 
  mapping 
  than 
  

   we 
  felt 
  that 
  we 
  could 
  as 
  yet 
  give 
  them. 
  

  

  The 
  crystalline 
  limestones 
  themselves 
  have 
  been 
  found 
  in 
  small 
  

   exposures 
  over 
  almost 
  all 
  of 
  Warren 
  co. 
  and 
  generally 
  in 
  the 
  

   crystalline 
  belt 
  of 
  Washington. 
  They 
  are 
  most 
  extensive 
  in 
  

   Newcomb 
  and 
  Minerva 
  townships 
  of 
  Essex, 
  and 
  to 
  the 
  south 
  

   become 
  thinner 
  and 
  more 
  scattered. 
  So 
  far 
  as 
  we 
  have 
  observed 
  

   they 
  are 
  less 
  common 
  in 
  eastern 
  Hamilton 
  co. 
  There 
  is 
  evi- 
  

   dence 
  to 
  show 
  that 
  stratigraphical 
  relations 
  can 
  be 
  proven 
  and 
  

   that 
  anticlines 
  and 
  synclines 
  can 
  be 
  demonstrated. 
  

  

  5 
  Dikes 
  of 
  basic 
  gabbro 
  usually 
  of 
  moderate 
  width, 
  but 
  litho- 
  

   logically 
  like 
  the 
  larger 
  masses 
  in 
  Essex 
  co. 
  have 
  been 
  met 
  over 
  

   a 
  wide 
  area 
  — 
  in 
  fact 
  in 
  almost 
  every 
  township 
  in 
  Warren, 
  but 
  

   the 
  basaltic 
  traps 
  almost 
  disappear. 
  Except 
  for 
  one 
  or 
  two 
  

   south 
  of 
  Whitehall, 
  the 
  entire 
  region 
  here 
  covered 
  is 
  barren 
  of 
  

   them. 
  The 
  anorthosites 
  likewise 
  fail, 
  a 
  as 
  stated 
  in 
  the 
  introduc- 
  

   tory 
  remarks. 
  

  

  6 
  The 
  paleozoic 
  strata 
  are 
  only 
  found 
  as 
  fringes 
  around 
  the 
  

   crystallines 
  or 
  as 
  setting 
  short 
  distances 
  up 
  valleys 
  and 
  not 
  far 
  

   from 
  the 
  larger 
  exposures 
  to 
  the 
  south, 
  except 
  in 
  the 
  Wellstown 
  

   instance 
  in 
  southern 
  Hamilton. 
  This 
  last 
  named 
  outlier 
  was 
  

   studied 
  somewhat 
  carefully 
  by 
  Mr 
  Newland, 
  but 
  as 
  it 
  raised 
  

   questions 
  in 
  his 
  mind 
  that 
  required 
  more 
  attention 
  than 
  he 
  was 
  

   able 
  to 
  give 
  them, 
  in 
  1897, 
  the 
  subject 
  is 
  allowed 
  to 
  go 
  over 
  

   till 
  our 
  next 
  report 
  for 
  its 
  full 
  elucidation. 
  It 
  may 
  be 
  premised 
  

   that 
  the 
  evidence 
  gathered 
  still 
  seems 
  to 
  us 
  to 
  indicate 
  the 
  advance 
  

   of 
  the 
  Potsdam 
  sea 
  up 
  a 
  preexisting 
  valley, 
  rather 
  than 
  the 
  ex- 
  

   clusive 
  infaulting 
  of 
  an 
  otherwise 
  widespread 
  Cambro-Silurian 
  

   mantle 
  over 
  all 
  the 
  crystalline 
  area. 
  6 
  

  

  7 
  Glacial 
  striae 
  have 
  been 
  noted 
  in 
  quite 
  a 
  number 
  of 
  places. 
  

   They 
  are 
  almost 
  always 
  N 
  10 
  to 
  15 
  E, 
  but 
  they 
  may 
  be 
  N 
  and 
  S, 
  

   or 
  as 
  much 
  as 
  N 
  35 
  E. 
  These 
  directions 
  are 
  more 
  northerly 
  

  

  a 
  Mr 
  Newland 
  found 
  one 
  area 
  in 
  northwestern 
  Warren 
  co. 
  In 
  1898, 
  which 
  will 
  be 
  described 
  in 
  our 
  

   next 
  annual 
  report. 
  

   b 
  Compare 
  R. 
  Ruedemann. 
  Amer. 
  geol. 
  Feb. 
  1898 
  p. 
  75. 
  

  

  