﻿FEB 
  5101c 
  

  

  THE 
  

  

  AMERICAN 
  JOURNAL 
  OF 
  SCIENCE 
  

  

  [FOURTH 
  SERIES.] 
  

  

  Art. 
  V. 
  — 
  On 
  the 
  Paleozoic 
  Formations 
  of 
  Finmarken 
  in 
  

   Northern 
  Norway; 
  by 
  Olaf 
  Holtedahl. 
  

  

  Far 
  beyond 
  the 
  Arctic 
  Circle, 
  between 
  latitudes 
  69° 
  and 
  

   71° 
  N., 
  lies 
  the 
  Norwegian 
  district 
  of 
  Finmarken. 
  It 
  is 
  

   the 
  most 
  northern 
  prominence 
  of 
  the 
  Scandinavian 
  pen- 
  

   insula. 
  The 
  present 
  Finmarken 
  is 
  only 
  a 
  part 
  of 
  the 
  old 
  

   Finmork 
  (the 
  home 
  of 
  the 
  Finns 
  or 
  Lapps) 
  which 
  origi- 
  

   nally 
  also 
  embraced 
  the 
  land 
  to 
  the 
  east. 
  

  

  Except 
  in 
  the 
  most 
  western 
  part 
  of 
  Finmarken, 
  where 
  

   there 
  is 
  a 
  continuation 
  of 
  the 
  wild 
  and 
  rocky 
  land 
  of 
  the 
  

   Norwegian 
  mountain 
  zone 
  farther 
  to 
  the 
  south, 
  most 
  of 
  

   this 
  district 
  is 
  relatively 
  low, 
  from 
  300 
  to 
  500 
  meters 
  

   above 
  sea-level. 
  The 
  most 
  typical 
  landscape 
  is 
  the 
  undu- 
  

   lating 
  plain, 
  with 
  here 
  and 
  there 
  deeply 
  incised 
  river 
  

   valleys. 
  In 
  the 
  valleys 
  birches 
  are 
  common, 
  along 
  with 
  

   a 
  few 
  pines, 
  but 
  on 
  the 
  high 
  plains 
  grow 
  only 
  dwarf 
  

   bushes 
  and 
  mosses. 
  

  

  Though 
  a 
  good 
  many 
  geologists 
  have 
  travelled 
  in 
  Fin- 
  

   marken 
  and 
  many 
  geological 
  details 
  have 
  been 
  published, 
  

   yet 
  very 
  little 
  has 
  been 
  known 
  as 
  to 
  the 
  general 
  geologi- 
  

   cal 
  structure 
  and 
  age 
  of 
  the 
  rocks. 
  Tellef 
  Dahll 
  in 
  1867 
  

   tried 
  to 
  put 
  the 
  different 
  rocks 
  into 
  order 
  and 
  divided 
  

   the 
  sedimentary 
  series, 
  whose 
  dominating 
  rocks 
  are 
  sand- 
  

   stones, 
  into 
  an 
  older 
  Raipas 
  and 
  a 
  younger 
  Gaisa 
  system 
  ; 
  

   the 
  former 
  having 
  dolomites 
  as 
  a 
  typical 
  member. 
  

  

  As 
  to 
  the 
  age 
  of 
  these 
  series, 
  which 
  are 
  very 
  unlike 
  

   anything 
  known 
  from 
  more 
  southern 
  parts 
  of 
  the 
  Scan- 
  

   dinavian 
  Peninsula, 
  opinions 
  have 
  been 
  very 
  divergent. 
  

   The 
  earlier 
  investigators 
  have 
  generally 
  thought 
  them 
  

   to 
  be 
  of 
  fairly 
  recent 
  date, 
  belonging 
  to 
  the 
  Devonian 
  or 
  

  

  Am. 
  Jour. 
  Sci.— 
  Fourth 
  Series, 
  Vol. 
  XLVH, 
  No. 
  278.— 
  February, 
  1919. 
  

  

  7 
  

  

  