﻿10 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  II 
  

  

  REPORT 
  ON 
  THE 
  GEOLOGICAL 
  SURVEY 
  INCLUDING 
  

  

  THE 
  WORK 
  OF 
  THE 
  STATE 
  GEOLOGIST 
  AND 
  

  

  PALEONTOLOGIST, 
  OF 
  THE 
  MINERALOGIST 
  

  

  AND 
  THAT 
  IN 
  INDUSTRIAL 
  GEOLOGY 
  

  

  GEOLOGICAL 
  SURVEY 
  

  

  Areal 
  rock 
  geology 
  

  

  In 
  continuation 
  of 
  operations 
  directed 
  toward 
  the 
  execution 
  of 
  

   a 
  geological 
  map 
  on 
  the 
  topographic 
  base 
  of 
  I 
  mile 
  to 
  the 
  inch 
  

   progress 
  has 
  been 
  made 
  along 
  lines 
  which 
  have 
  been 
  pursued 
  for 
  

   several 
  years. 
  

  

  Central 
  and 
  western 
  New 
  York. 
  Since 
  my 
  last 
  report 
  the 
  double 
  

   map 
  including 
  the 
  Rochester 
  and 
  Ontario 
  Beach 
  quadrangles, 
  em- 
  

   bracing 
  the 
  city 
  of 
  Rochester 
  and 
  its 
  environs, 
  has 
  been 
  issued. 
  This 
  

   report 
  was 
  prepared 
  by 
  Mr 
  Hartnagel. 
  The 
  Geneva-Ovid 
  double 
  

   north 
  and 
  south 
  sheet 
  and 
  the 
  Portage-Nunda 
  double 
  east 
  and 
  west 
  

   sheet 
  are 
  printing. 
  The 
  latter 
  contains 
  special 
  maps 
  of 
  Letchworth 
  

   park 
  at 
  the 
  Portage 
  falls 
  of 
  the 
  Genesee' 
  river 
  and 
  a 
  chapter 
  on 
  the 
  

   postglacial 
  history 
  of 
  the 
  river. 
  

  

  The 
  Auburn-Genoa 
  and 
  the 
  Honeoye-Wayland 
  quadrangles 
  have 
  

   been 
  completed 
  as 
  separate 
  double 
  maps, 
  while 
  the 
  map 
  of 
  Phelps 
  

   remains 
  as 
  a 
  single 
  quadrangle. 
  Work 
  has 
  also 
  begun 
  on 
  the 
  Cale- 
  

   donia 
  quadrangle 
  and 
  some 
  preliminary 
  observations 
  made 
  on 
  the 
  

   Belfast 
  sheet. 
  All 
  this 
  work 
  has 
  been 
  executed 
  by 
  D. 
  D. 
  Luther. 
  

   Of 
  other 
  quadrangles 
  awaiting 
  publication 
  are 
  the 
  Syracuse 
  sheet 
  by 
  

   Prof. 
  T. 
  C. 
  Hopkins 
  and 
  the 
  Morrisville 
  sheet 
  by 
  H. 
  O. 
  Whitnall. 
  

   The 
  field 
  work 
  for 
  the 
  Cazenovia 
  sheet 
  has 
  also 
  been 
  completed 
  and 
  

   that 
  on 
  the 
  Chittenango 
  sheet 
  begun 
  by 
  Mr 
  Whitnall. 
  

  

  All 
  the 
  quadrangles 
  above 
  referred 
  to 
  cover 
  areas 
  of 
  sedimentary 
  

   rocks 
  only 
  and 
  the 
  problems 
  arising 
  thereupon 
  are 
  almost 
  exclusively 
  

   those 
  of 
  refinement 
  of 
  stratigraphy 
  and 
  correlation. 
  

  

  Field 
  work 
  on 
  the 
  Remsen 
  quadrangle 
  has 
  been 
  completed 
  by 
  

   Prof. 
  W. 
  J. 
  Miller. 
  The 
  northern 
  half 
  of 
  this 
  quadrangle 
  is 
  occu- 
  

   pied 
  by 
  crystalline 
  rocks 
  and 
  the 
  rest 
  by 
  the 
  Paleozoic 
  sedimentaries. 
  

   The 
  crystallines 
  include 
  (a) 
  highly 
  altered 
  Grenville 
  sediments, 
  

   (b) 
  syenite 
  gneiss, 
  (c) 
  a 
  complex 
  made 
  up 
  chiefly 
  of 
  intermingled 
  

   Grenville 
  rocks 
  and 
  syenite. 
  The 
  Paleozoic 
  rocks 
  comprise 
  the 
  

   Trenton 
  series 
  of 
  limestones 
  and 
  the 
  Utica 
  shale. 
  

  

  