﻿PEALE.] 
  

  

  PALEOZOIC 
  ROCKS 
  CAEBONIFEROUS. 
  

  

  73 
  

  

  Clarence 
  King, 
  on 
  his 
  map 
  of 
  the 
  Green 
  Eiver 
  basin, 
  (Map 
  II, 
  Geo- 
  

   logical 
  Exploration 
  of 
  the 
  fortieth 
  parallel,) 
  has 
  colored 
  a 
  narrow 
  strip 
  

   between 
  the 
  Triassic 
  and 
  upper 
  Coal-Measures 
  to 
  represent 
  the 
  Permo- 
  

   Carboniferous. 
  Prof. 
  Theo. 
  B. 
  Com 
  stock, 
  speaking 
  of 
  the 
  Carboniferous 
  

   in 
  the 
  Korth, 
  says 
  : 
  

  

  Near 
  the 
  head 
  of 
  Wind 
  Eiver, 
  overlying 
  conformably 
  the 
  Subcarboniforous 
  ? 
  limestone, 
  

   there 
  is 
  a 
  thick 
  formation 
  of 
  arenaceous 
  and 
  calcareous 
  beds 
  underneath 
  the 
  brick-red 
  sand- 
  

   stones, 
  usually 
  regarded 
  as 
  Triassic? 
  If 
  the 
  limestone 
  referred 
  doubtfully 
  to 
  the 
  Subcar- 
  

   boniferous 
  be 
  really 
  the 
  equivalent 
  of 
  Hayden's 
  Carboniferous 
  east 
  of 
  our 
  district, 
  this 
  for- 
  

   mation 
  would 
  seem 
  to 
  occupy 
  the 
  position 
  of 
  his 
  Permian**. 
  

  

  Professor 
  Meek, 
  in 
  the 
  Paleontologioal 
  Keport 
  of 
  Simpson's 
  Expedi- 
  

   tion 
  of 
  1859, 
  describes 
  fossils 
  of 
  Permian 
  afflnities 
  from 
  Timpanogos 
  

   River 
  in 
  Utah. 
  

  

  It 
  would 
  seem, 
  therefore, 
  that 
  the 
  series 
  is 
  comparatively 
  well 
  marked 
  

   at 
  widely 
  separated 
  localities. 
  

  

  Prof. 
  John 
  J. 
  Stevenson 
  (in 
  Eeport 
  of 
  Geographical 
  and 
  Geologi- 
  

   cal 
  Explorations 
  West 
  of 
  the 
  One 
  Hundredth 
  Meridian, 
  vol. 
  iii, 
  page 
  

   639) 
  refers 
  the 
  gypsum 
  series 
  of 
  Eagle 
  Eiver, 
  Colorado, 
  to 
  the 
  Carbonif- 
  

   erous. 
  These 
  are 
  the 
  beds 
  that 
  in 
  1873 
  I 
  referred 
  to 
  Permian 
  or 
  Permo- 
  

   Carboniferous.t 
  Professor 
  dewberry, 
  in 
  his 
  section 
  of 
  the 
  canon 
  of 
  

   the 
  Colorado,! 
  notes 
  the 
  occurrence 
  of 
  " 
  red 
  calcareous 
  eandstones 
  

   with 
  gypsum," 
  lying 
  above 
  the 
  " 
  Lower 
  Carboniferous 
  ? 
  limestone." 
  In 
  

   speaking 
  of 
  the 
  fact 
  that 
  the 
  comparison 
  of 
  the 
  section 
  on 
  Grand 
  River 
  

   with 
  that 
  of 
  the 
  Grand 
  Canon 
  cannot 
  be 
  made, 
  he 
  says, 
  " 
  But 
  the 
  

   great 
  beds 
  of 
  gypsum 
  of 
  Cataract 
  Creek 
  are 
  certainly 
  wanting 
  here 
  (on 
  

   Grand 
  Eiver§). 
  

  

  In 
  the 
  " 
  red 
  wall 
  limestone," 
  which 
  corresponds 
  to 
  a 
  portion 
  of 
  !New- 
  

   berry's 
  Lower 
  Carboniferous 
  *? 
  limestone, 
  Mr. 
  G. 
  K. 
  Gilbert 
  found 
  fos- 
  

   sils 
  referable 
  to 
  the 
  Coal-Measures 
  about 
  the 
  middle 
  of 
  the 
  series. 
  He 
  

   says||: 
  

  

  With 
  these 
  fossils 
  in 
  view 
  the 
  provisional 
  assignment 
  by 
  Dr. 
  Newberry 
  of 
  the 
  whole 
  lime- 
  

   stone 
  to 
  the 
  Lower 
  Carboniferous 
  and 
  Devonian 
  is 
  seen 
  to 
  be 
  erroneous, 
  but 
  we 
  are 
  not 
  yet 
  

   enabled 
  to 
  demonstrate 
  a 
  complete 
  correlation. 
  Of 
  the 
  4,000 
  to 
  4,500 
  feet 
  of 
  strata 
  that 
  I 
  

   have 
  assigned 
  to 
  the 
  Carboniferous, 
  a 
  very 
  few 
  feet 
  at 
  the 
  top 
  may 
  be 
  called 
  Permo-Carboni- 
  

   ferous, 
  and 
  not 
  less 
  than 
  3,000 
  feet 
  are 
  to 
  be 
  referred 
  to 
  the 
  Coal-Measures. 
  

  

  In 
  a 
  foot-note 
  he 
  says 
  : 
  

  

  Professor 
  Marcou 
  (Geology 
  of 
  North 
  America, 
  pp. 
  23, 
  24, 
  and 
  62) 
  calls 
  the 
  Aubrey 
  lime- 
  

   stone 
  Permian, 
  the 
  Aubrey 
  sandstone 
  Coal-Measures, 
  and 
  the 
  red 
  wall 
  limestone 
  "Car- 
  

   boniferous 
  limestone 
  " 
  or 
  "Mountain 
  limestone." 
  

  

  The 
  following 
  table 
  will 
  give 
  a 
  comparison 
  of 
  Dr. 
  I^Tewberry's 
  and 
  Mr. 
  

   Gilbert's 
  sections 
  : 
  

  

  Newberry. 
  

  

  Gilbert. 
  

  

  Feet. 
  

  

  Upper 
  Carboniferous 
  limestone 
  -> 
  

  

  Cross 
  stratified 
  sandstones 
  >1, 
  200 
  

  

  Red 
  calcareous 
  sandstones 
  with 
  gypsum 
  ) 
  

  

  Lower 
  Carboniferous 
  ! 
  limestone 
  1, 
  000 
  

  

  Feet. 
  

  

  Cherty 
  limestone 
  ) 
  

  

  Cross-bedded 
  yellow 
  sandstones, 
  massive- 
  | 
  

   Red 
  and 
  wbite 
  shales 
  and 
  calcareous 
  sand- 
  S 
  1, 
  300 
  

   stone, 
  gypsiferoug 
  in 
  Bome 
  localities 
  ... 
  

  

  Red 
  wall 
  limestone 
  group 
  2, 
  675 
  

  

  ^Reconnaissance 
  of 
  Northwestern 
  Wyoming, 
  p. 
  114. 
  

   t 
  Report 
  United 
  States 
  Geological 
  Survey, 
  1873, 
  p. 
  245. 
  

   t 
  Ives's 
  Colorado 
  Exploring 
  Expedition, 
  p. 
  42, 
  Geological 
  Report. 
  

   ^ 
  Exploring 
  Expedition 
  from 
  Santa 
  F6 
  to 
  Jirnction 
  of 
  Grand 
  and 
  Green, 
  p. 
  98. 
  

   II 
  Eeport 
  Geographical 
  and 
  Geological 
  Exploration 
  West 
  of 
  One 
  Hundredth 
  Meridian, 
  

   p. 
  178. 
  

  

  