﻿146 
  Geological 
  Survey 
  of 
  IvOuisiana 
  [Sect. 
  

  

  Bad 
  water 
  would 
  doubtless 
  be 
  met 
  with 
  if 
  the 
  drill 
  penetrated 
  

   to 
  the 
  underlying 
  Cretaceous 
  strata. 
  

  

  West 
  of 
  Old 
  river 
  and 
  south 
  of 
  Texas 
  road 
  the 
  surface 
  

   material 
  is 
  mainly 
  Lower 
  Claiborne. 
  This 
  could 
  be 
  told, 
  if 
  by 
  

   no 
  other 
  means, 
  by 
  the 
  frightfully 
  bad 
  road 
  bed 
  from 
  the 
  forks 
  of 
  

   the 
  Texas 
  and 
  Kircha 
  roads 
  for 
  over 
  a 
  mile 
  southwest 
  along 
  the 
  

   latter 
  road. 
  But 
  on 
  the 
  slopes 
  on 
  either 
  side 
  of 
  the 
  little 
  branch 
  

   which 
  crosses 
  the 
  road 
  just 
  south 
  of 
  the 
  word 
  " 
  Kircha 
  " 
  on 
  the 
  

   map 
  there 
  are 
  thin 
  ledges 
  of 
  limestone 
  replete 
  with 
  Ostreafalciformis 
  

   and 
  a 
  small 
  discoid 
  foraminifer. 
  These 
  are 
  characteristic 
  Lower 
  

   Claiborne 
  species. 
  

  

  Why 
  the 
  road 
  is 
  better 
  for 
  perhaps 
  one-half 
  mile 
  south 
  of 
  this 
  

   branch 
  is 
  because 
  the 
  Lower 
  Claiborne 
  marls 
  are 
  overlaid 
  by 
  

   porous 
  sandy 
  layers, 
  into 
  which 
  the 
  water 
  can 
  sink 
  and 
  drain 
  off 
  

   into 
  side 
  channels. 
  

  

  Hickory 
  hill 
  appears 
  to 
  be 
  a 
  Lower 
  Claiborne 
  island 
  separated 
  

   from 
  the 
  other 
  deposits 
  of 
  this 
  stage 
  by 
  the 
  alluvial 
  tract 
  between 
  

   Bayou 
  Bulikano 
  and 
  Old 
  river. 
  

  

  Quaternary 
  

  

  After 
  the 
  Eocene 
  deposits 
  just 
  described 
  had 
  been 
  laid 
  down 
  

   on 
  the 
  bottom 
  of 
  the 
  sea, 
  they 
  were 
  raised 
  considerably 
  higher 
  

   above 
  sea-level 
  than 
  they 
  are 
  to-day. 
  This 
  accelerated 
  erosion, 
  

   and 
  the 
  result 
  was 
  that 
  the 
  whole 
  eastern 
  half 
  of 
  this 
  township 
  

   was 
  degraded, 
  doubtless 
  to 
  present 
  sea 
  level 
  or 
  even 
  below. 
  

   This 
  action 
  went 
  on 
  until 
  the 
  land 
  was 
  once 
  more 
  depressed, 
  and 
  

   then 
  the 
  refilling 
  of 
  this 
  deeply 
  eroded 
  area 
  commenced. 
  The 
  

   section 
  at 
  the 
  bottom 
  of 
  the 
  map 
  shows 
  this 
  old 
  valley 
  filled 
  up 
  

   to 
  its 
  present 
  appearance 
  by 
  Quaternary 
  sand 
  and 
  clay. 
  

  

  The 
  low-lands 
  about 
  Mill 
  bayou, 
  and 
  in 
  fact 
  Sibley's 
  lake 
  bot- 
  

   tom, 
  consist 
  of 
  Quaternary 
  sands 
  and 
  clays 
  that 
  have 
  likewise 
  

   refilled 
  an 
  old 
  post-Eocene 
  valley. 
  

  

  Soils 
  

  

  Quaternary 
  

  

  Front 
  lands. 
  — 
  The 
  fine 
  reddish 
  loams 
  of 
  Quaternary 
  deposits 
  

  

  along 
  the 
  borders 
  of 
  the 
  larger 
  streams 
  in 
  this 
  township 
  are 
  rich 
  

  

  and 
  very 
  productive. 
  Corn 
  and 
  cotton 
  are 
  the 
  staple 
  products 
  

  

  on 
  these 
  lands 
  at 
  present 
  and 
  very 
  satisfactory 
  are 
  the 
  results. 
  

  

  