﻿Taff 
  — 
  Alhertite-Wke 
  Asphalt 
  in 
  the 
  Choctaw 
  Nation. 
  223 
  

  

  northeast 
  and 
  southwest, 
  then 
  overturned 
  towards 
  the 
  north- 
  

   west 
  and, 
  in 
  many 
  places, 
  faulted. 
  Especially 
  where 
  shales 
  

   are 
  involved 
  the 
  crushing 
  and 
  faulting 
  has 
  been 
  very 
  extensive. 
  

   Three 
  lines 
  of 
  faulting 
  bearing 
  northeast 
  and 
  southwest 
  and 
  hav- 
  

   ing 
  displacements 
  of 
  many 
  hundred 
  feet, 
  extend 
  along 
  the 
  south- 
  

   east 
  sides 
  of 
  the 
  group 
  of 
  hills 
  through 
  the 
  center 
  of 
  T. 
  1 
  N., 
  

   E. 
  14 
  E., 
  of 
  the 
  Jack 
  Fork 
  Hills 
  in 
  the 
  center 
  of 
  T. 
  1 
  K, 
  E. 
  

   15 
  E. 
  and 
  of 
  the 
  hill 
  in 
  section 
  3, 
  T. 
  1 
  J^., 
  E. 
  15 
  E. 
  respectively. 
  

   The 
  latter 
  two 
  lines 
  of 
  faulting 
  extend 
  from 
  the 
  ends 
  of 
  the 
  hills 
  

   southwestward 
  into 
  the 
  plain 
  toward 
  the 
  albertite 
  exposures. 
  

  

  i&isf 
  

  

  Map 
  to 
  show 
  location 
  of 
  asphalt 
  mines 
  in 
  Choctaw 
  Nation. 
  

  

  Another 
  zone 
  of 
  faulting 
  extends 
  from 
  the 
  plain 
  nearly 
  two 
  

   miles 
  east 
  of 
  Etna 
  bearing 
  southwestward, 
  crossing 
  the 
  center 
  

   of 
  the 
  south 
  side 
  of 
  T. 
  1 
  ]^., 
  E. 
  15 
  E. 
  thence 
  nearly 
  due 
  south 
  

   along 
  the 
  west 
  side 
  of 
  Impson 
  Yalley. 
  The 
  albertite 
  mines 
  of 
  

   this 
  valley 
  are 
  located 
  along 
  this 
  fractured 
  zone. 
  The 
  north 
  

  

  