﻿INDEX 
  TO 
  GEOLOGY 
  OF 
  THOUSAND 
  ISLANDS 
  REGION 
  

  

  193 
  

  

  Ribbed 
  limestone, 
  167-69, 
  

  

  Rideau, 
  Ont., 
  61. 
  

  

  Road 
  metal, 
  173-74- 
  

  

  Roaring 
  creek, 
  'j']. 
  

  

  Robbins 
  island, 
  granite, 
  11, 
  41. 
  

  

  Rock 
  cliffs 
  of 
  region, 
  22. 
  

  

  Rock 
  knobs, 
  146-47. 
  

  

  Rock 
  structures, 
  99-121. 
  

  

  Rocks, 
  24-92. 
  

  

  Rossie 
  road, 
  57. 
  

  

  Ruedemann, 
  R., 
  Mohawkian 
  series, 
  

   79-92; 
  mapping 
  of 
  quadrangles, 
  5, 
  

   115, 
  121; 
  cited, 
  65, 
  134, 
  135. 
  

  

  Rutile, 
  32, 
  181. 
  

  

  St 
  Lawrence 
  county, 
  beeches 
  and 
  

   deltas 
  of 
  Lake 
  Iroquois, 
  139. 
  

  

  St 
  Lawrence 
  valley, 
  126. 
  

  

  Salisbury, 
  R. 
  D., 
  cited, 
  156. 
  

  

  Sandstone 
  quarries, 
  174-75. 
  

  

  Sanford 
  Center, 
  80. 
  

  

  Sanford 
  Corners, 
  75, 
  '/6, 
  154, 
  160. 
  

  

  Saranac 
  gneiss, 
  38. 
  

  

  Saratoga 
  vicinity, 
  Paleozoic 
  oscilla- 
  

   tions 
  of 
  level, 
  97. 
  

  

  Saratogan, 
  97. 
  

  

  Scapolite, 
  51, 
  53. 
  

  

  Scarps, 
  129-31. 
  

  

  Schists, 
  30, 
  31, 
  34-36, 
  Zl, 
  50, 
  55, 
  57; 
  

   green, 
  in 
  Alexandria, 
  47-50. 
  

  

  Seely, 
  cited, 
  68. 
  

  

  Serpentine, 
  29. 
  

  

  Seven 
  foot 
  tier, 
  79, 
  84, 
  85, 
  86, 
  87, 
  89, 
  

   90, 
  92.' 
  

  

  Sillimanite, 
  35. 
  

  

  Sixberry 
  lake, 
  127, 
  132. 
  

  

  Smyth, 
  C. 
  H. 
  jr, 
  mapped 
  major 
  por- 
  

   tion 
  of 
  Wellesley 
  island, 
  5 
  ; 
  report 
  

   on 
  Alexandria 
  and 
  Grindstone 
  

   sheets, 
  6; 
  cited, 
  27, 
  31, 
  36, 
  40, 
  45, 
  

   50, 
  51, 
  54, 
  57, 
  ^2, 
  119, 
  182, 
  183. 
  

  

  Stock, 
  defined, 
  10. 
  

  

  Stone 
  Mills, 
  71. 
  * 
  

  

  Stone 
  quarries, 
  173. 
  

  

  Stones 
  River 
  limestone, 
  17-18, 
  78, 
  95. 
  

  

  Striations, 
  159-60. 
  

  

  Stromatocerium, 
  80. 
  

  

  Strophomena 
  filitexta, 
  90. 
  

  

  Strough, 
  155. 
  

  

  Subsequent 
  streams, 
  124. 
  

  

  Syenites, 
  24, 
  39, 
  44; 
  analyses, 
  182-84; 
  

   southwest 
  of 
  Theresa, 
  11. 
  See 
  also 
  

   Alexandria 
  syenite 
  ; 
  Theresa 
  syen- 
  

   ite. 
  

  

  Syncline, 
  defined, 
  113. 
  

  

  Talc, 
  53. 
  

  

  Taylor, 
  F. 
  B., 
  cited, 
  166. 
  

  

  Terraces, 
  129-31. 
  

  

  Tertiary 
  drainage, 
  125-29. 
  

  

  Tertiary 
  uplift, 
  125. 
  

  

  Tetradium 
  cellulosum, 
  80, 
  81, 
  82, 
  83, 
  

   84, 
  90. 
  

   syringoporoides, 
  72, 
  84. 
  

  

  Theresa, 
  52, 
  57, 
  58, 
  59, 
  98, 
  113, 
  128, 
  

   155, 
  160, 
  173. 
  

  

  Theresa 
  formation, 
  15-16, 
  54, 
  60, 
  64- 
  

   68, 
  92, 
  97, 
  98, 
  114, 
  115, 
  130, 
  133, 
  147; 
  

   age 
  of, 
  66-68; 
  composed 
  of 
  two 
  

   unconformable 
  formations, 
  16; 
  in 
  

   part 
  of 
  Ozarkic 
  and 
  in 
  part 
  of 
  

   Tribes 
  Hill 
  age, 
  65; 
  term 
  to 
  be 
  

   restricted, 
  66; 
  uplift 
  following, 
  16; 
  

  

  Theresa 
  Junction, 
  155. 
  

  

  Theresa 
  quadrangle, 
  7; 
  mapping, 
  5; 
  

   Potsdam 
  sandstone, 
  60, 
  62. 
  

  

  Theresa 
  syenite, 
  38, 
  182; 
  foliation, 
  

   102-3. 
  

  

  Threemile 
  Bay, 
  89, 
  91, 
  92, 
  114, 
  115. 
  

  

  Till, 
  151 
  ; 
  old, 
  166. 
  

  

  Titanite, 
  32, 
  35, 
  3^, 
  38. 
  40, 
  49, 
  52, 
  64, 
  

   177, 
  181, 
  183. 
  

  

  Topography, 
  121-36, 
  145-50- 
  

  

  Tourmalin, 
  46, 
  48, 
  49, 
  50, 
  181 
  ; 
  con- 
  

   tact 
  zones 
  in 
  Alexandria, 
  50-51. 
  

  

  Trap 
  rock 
  dikes, 
  24, 
  44, 
  174. 
  

  

  Trernolite, 
  53. 
  

  

  Trenton 
  Falls, 
  Paleozoic 
  oscillations 
  

   of 
  level, 
  97. 
  

  

  Trenton 
  group, 
  79, 
  97. 
  

  

  Trenton 
  limestone, 
  18-20, 
  22, 
  54, 
  90- 
  

   92, 
  96, 
  97, 
  98, 
  121, 
  123, 
  130; 
  use 
  for 
  

   road 
  metal, 
  174. 
  

  

  Tribes 
  Hill 
  limestone, 
  16, 
  04-68, 
  93, 
  

  

  97- 
  

   Tupper 
  syenite, 
  analysis, 
  182. 
  

  

  Ulrich, 
  E. 
  O., 
  field 
  work, 
  6 
  ; 
  acknowl- 
  

   edgments 
  to, 
  6 
  ; 
  cited, 
  65, 
  72, 
  74, 
  75, 
  

   76, 
  78, 
  79, 
  82, 
  85, 
  93, 
  95, 
  136; 
  men- 
  

   tioned, 
  86. 
  

  

  