﻿70 
  Geological 
  Survey 
  of 
  Louisiana 
  [Sect. 
  

  

  stream, 
  several 
  imprints 
  of 
  marine 
  fossils 
  were 
  found, 
  including 
  

   Turritella 
  humerosa, 
  and 
  what 
  seem 
  to 
  be 
  fragments 
  of 
  Volutili- 
  

   thes 
  petrosus 
  and 
  small 
  fusoid 
  forms. 
  ' 
  

  

  Going 
  eastward 
  along 
  the 
  road 
  to 
  Robeline 
  one 
  sees 
  several 
  

   hill-slopes 
  with 
  light 
  sands 
  and 
  clays, 
  the 
  latter 
  apparently 
  of 
  a 
  

   good 
  grade 
  for 
  pottery, 
  and 
  ledges 
  of 
  rock 
  (3^ 
  miles 
  from 
  Robe- 
  

   line, 
  on 
  what 
  is 
  called 
  Kirkam 
  or 
  Rock 
  Chimney 
  hill), 
  remark- 
  

   able 
  for 
  the 
  size 
  of 
  the 
  lenticular 
  or 
  irregular 
  shape 
  concretions 
  

   they 
  contain. 
  

  

  Robeline. 
  — 
  A 
  good 
  potters' 
  clay 
  has 
  been 
  worked 
  2^ 
  miles 
  

   east 
  of 
  Robeline 
  on 
  the 
  Carter 
  place. 
  It 
  is 
  yellowish 
  and 
  quite 
  

   sandy, 
  but 
  is 
  very 
  hard 
  and 
  tough 
  to 
  pick. 
  Some 
  6,000 
  flower- 
  

   pots 
  and 
  many 
  jugs 
  were 
  made 
  here 
  a 
  few 
  years 
  ago. 
  There 
  is 
  

   a 
  considerable 
  difference 
  in 
  the 
  amount 
  of 
  sandy 
  material 
  inter- 
  

   mixed 
  in 
  the 
  various 
  clays 
  seen 
  outcropping 
  in 
  this 
  vicinity 
  and 
  

   the 
  so-called 
  sassafras 
  clays 
  have 
  been 
  extensively 
  used 
  for 
  bricks 
  

   without 
  the 
  admixture 
  of 
  sands 
  or 
  clays 
  from 
  other 
  strata. 
  Mr. 
  

   Ponder 
  S. 
  Carter 
  has 
  charge 
  of 
  this 
  estate 
  at 
  present. 
  He 
  very 
  

   kindly 
  donated 
  to 
  the 
  Survey 
  a 
  flower-pot 
  and 
  jug 
  made 
  from 
  

   these 
  clays. 
  

  

  Along 
  the 
  railroad 
  track 
  towards 
  Victoria 
  mills 
  numerous 
  cuts 
  

   are 
  seen 
  exhibiting 
  the 
  L,ignitic 
  clays 
  to 
  good 
  advantage. 
  Lerch 
  

   has 
  given 
  figures 
  of 
  two 
  of 
  these 
  in 
  his 
  2d 
  report 
  on 
  the 
  hills 
  

   of 
  N. 
  Louisiana 
  (p. 
  76). 
  One 
  shows 
  two 
  seams 
  of 
  Lignite. 
  

   This 
  Survey 
  (1899), 
  found 
  numerous 
  traces 
  of 
  marine 
  mollusks 
  

   in 
  some 
  of 
  these 
  layers. 
  Near 
  Victoria 
  Mills 
  the 
  Lignitic 
  strata 
  

   pass 
  beneath 
  those 
  of 
  Lower 
  Claiborne 
  age. 
  

  

  Natchitoches. 
  — 
  The 
  best 
  display 
  of 
  Lignitic 
  strata 
  in 
  this 
  

   vicinity 
  is 
  at 
  Grand 
  Ecore. 
  But 
  beds 
  of 
  a 
  similar 
  character 
  crop 
  

   out 
  on 
  Cane 
  river 
  just 
  north 
  of 
  the 
  town. 
  They 
  are 
  there 
  over- 
  

   laid 
  by 
  fossiliferous 
  Claiborne 
  deposits. 
  

  

  (For 
  illustration 
  of 
  this 
  bluff, 
  see 
  special 
  report 
  on 
  Natchito- 
  

   ches 
  area.) 
  

  

  The 
  larger 
  part 
  of 
  the 
  upland 
  of 
  this 
  township 
  is 
  underlaid 
  by 
  

   sandy 
  and 
  clayey 
  deposits 
  of 
  the 
  Lignitic 
  stage. 
  There 
  appears 
  

   to 
  be 
  far 
  less 
  calcareous 
  matter 
  in 
  these 
  deposits 
  than 
  was 
  

   observed 
  in 
  those 
  of 
  the 
  same 
  age 
  about 
  Many. 
  (See 
  further 
  

   under 
  special 
  article 
  on 
  Natchitoches 
  area.) 
  

  

  