﻿6o 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  with 
  reference 
  to 
  the 
  Long 
  Lake 
  and 
  Port 
  Henry-Elizabethtown 
  

   quadrangles 
  that 
  the 
  Precambric 
  rocks 
  show 
  no 
  good 
  evidence 
  of 
  

   having 
  been 
  more 
  than 
  moderately 
  folded 
  or 
  tilted, 
  and 
  this 
  ap- 
  

   pears 
  to 
  be 
  true 
  of 
  the 
  North 
  Creek 
  quadrangle 
  as 
  well. 
  

  

  Locally, 
  the 
  limestone 
  and 
  accompanying 
  pyroxene 
  gneiss 
  may 
  be 
  

   intensely 
  contorted 
  or 
  twisted, 
  probably 
  being 
  due 
  to 
  the 
  more 
  

   plastic 
  character 
  of 
  the 
  limestone 
  when 
  subjected 
  to 
  great 
  pres- 
  

   sure. 
  The 
  pyroxenic 
  bands 
  are 
  often 
  pulled 
  apart 
  into 
  small 
  lens- 
  

   like 
  masses 
  as 
  shown 
  in 
  plate 
  n 
  and 
  figure 
  9. 
  Other 
  fine 
  cases 
  

   of 
  contorted 
  limestone 
  may 
  be 
  seen 
  at 
  the 
  river 
  bridge 
  near 
  Thur- 
  

   man 
  station 
  (off 
  the 
  map) 
  ; 
  just 
  north 
  of 
  the 
  Ferry 
  at 
  the 
  river's 
  

   edge 
  (see 
  plate 
  3) 
  ; 
  along 
  the 
  road 
  ij4 
  rniles 
  southwest 
  of 
  Kelm 
  

   pond 
  ; 
  and 
  along 
  the 
  road 
  a 
  little 
  east 
  of 
  north 
  of 
  County 
  House 
  

   mountain. 
  

  

  Figure 
  9 
  represents 
  a 
  sketch, 
  drawn 
  to 
  scale, 
  of 
  a 
  mass 
  of 
  lime- 
  

   stone 
  on 
  the 
  south 
  side 
  of 
  Crane 
  mountain 
  which 
  has 
  been 
  con- 
  

   torted 
  and 
  forced 
  for 
  20 
  feet 
  across 
  the 
  foliation 
  bands 
  of 
  the 
  

   associated 
  hornblende-garnet 
  gneiss. 
  

  

  Fig. 
  9 
  Sketch 
  showing 
  a 
  peculiar 
  arrangement 
  of 
  Grenville 
  rocks 
  as 
  

   seen 
  by 
  the 
  roadside 
  on 
  the 
  south 
  side 
  of 
  Crane 
  mountain 
  and 
  three-fifths 
  

   of 
  a 
  mile 
  from 
  the 
  summit 
  of 
  the 
  mountain. 
  The 
  limestone 
  has 
  been 
  con- 
  

   torted 
  and 
  forced 
  across 
  the 
  foliation 
  bands 
  of 
  the. 
  associated 
  gneiss. 
  The 
  

   black 
  patches 
  represent 
  drawnout 
  fragments 
  of 
  pyroxenic 
  gneiss. 
  

  

  SURFACE 
  OF 
  THE 
  GREAT 
  SYENITE-GRANITE 
  INTRUSIVE 
  MASS 
  

  

  The 
  very 
  ancient 
  Grenville 
  strata 
  were 
  invaded 
  by 
  a 
  vast 
  mass 
  

   of 
  molten 
  syenite 
  and 
  granite 
  which, 
  in 
  part, 
  pushed 
  aside 
  or 
  up- 
  

   ward 
  or 
  engulfed 
  some 
  of 
  the 
  Grenville 
  and, 
  in 
  part, 
  left 
  patches 
  

   of 
  greater 
  or 
  lesser 
  extent 
  practically 
  intact. 
  This 
  has 
  largely 
  given 
  

   rise 
  to 
  the 
  very 
  decided 
  " 
  patchwork 
  " 
  appearance 
  of 
  the 
  geologic 
  

   map. 
  

  

  