﻿128 
  Geologicai. 
  Survey 
  of 
  Louisiana 
  [Sect. 
  

  

  of 
  the 
  Eocene 
  in 
  this 
  region 
  commonly 
  lack 
  pasticity, 
  though 
  

   some 
  beds 
  occur 
  which 
  will 
  make 
  a 
  fair 
  quality 
  of 
  earthenware. 
  

  

  At 
  Robeline 
  small 
  earthenware 
  objects 
  have 
  been 
  made 
  from 
  

   Lignitic 
  clays 
  at 
  Carter's 
  pottery 
  works. 
  (See 
  p. 
  70, 
  and 
  Dr. 
  

   Ries' 
  report 
  under 
  Special 
  Reports, 
  Section 
  3.) 
  

  

  The 
  clays 
  of 
  the 
  Grand 
  Gulf 
  hills 
  seem 
  to 
  be 
  more 
  promising 
  

   than 
  any 
  others 
  in 
  the 
  State. 
  

  

  Catahoula 
  parish. 
  — 
  In 
  the 
  north 
  central 
  part 
  of 
  this 
  parish 
  are 
  

   numerous 
  outcrops 
  of 
  a 
  very 
  pure 
  white 
  clay 
  locall}^ 
  called 
  

   "chalk." 
  Near 
  Spring 
  Ridge 
  church 
  (about 
  Sec. 
  17, 
  10 
  N., 
  5 
  

   E.) 
  the 
  following 
  section 
  was 
  seen 
  : 
  

  

  Section 
  at 
  Spring 
  Ridge 
  Church 
  

  

  1 
  . 
  Sand 
  to 
  top 
  of 
  hill 
  20 
  feet. 
  

  

  2. 
  Sandtone 
  2 
  

  

  3. 
  " 
  Chalk 
  " 
  — 
  a 
  very 
  fine 
  white 
  clay 
  2-4 
  " 
  

  

  4. 
  Dark 
  gray 
  clay 
  with 
  a 
  few 
  plant 
  impressions 
  .... 
  3 
  " 
  

  

  5. 
  Sandstone 
  to 
  bed 
  of 
  branch 
  2 
  " 
  

  

  Layer 
  3 
  outcrops 
  in 
  Sec, 
  7, 
  8, 
  17 
  and 
  21, 
  10 
  N., 
  5 
  E. 
  In 
  the 
  

   Chalk 
  Hills 
  (about 
  Sec. 
  7, 
  10 
  N., 
  5 
  E.) 
  it 
  occupies 
  the 
  tops 
  of 
  

   hills, 
  and 
  the 
  cost 
  of 
  obtaining 
  it 
  would 
  consequently 
  be 
  small. 
  

   The 
  section 
  here 
  shown 
  is 
  : 
  

  

  1 
  . 
  Sand 
  0-6 
  feet. 
  

  

  2. 
  Soft, 
  friable, 
  fine 
  gray 
  sandstone 
  i)^ 
  

  

  3. 
  "Chalk 
  "—a 
  fine 
  white 
  clay 
  8 
  

  

  4. 
  Fine 
  sandstone 
  i 
  foot. 
  

  

  5. 
  Dark 
  gray 
  or 
  drab 
  indurate 
  clay, 
  with 
  vegetable 
  

  

  impressions 
  10-14 
  feet. 
  

  

  6. 
  Hillside, 
  no 
  good 
  exposures, 
  covered 
  with 
  large 
  

  

  sandstone 
  bowlders, 
  so 
  evidently 
  in 
  place. 
  . 
  50 
  

  

  A 
  number 
  of 
  samples 
  of 
  this 
  material 
  were 
  collected 
  and 
  left 
  

   with 
  a 
  gentleman 
  at 
  Rosefield 
  to 
  be 
  forwarded. 
  The 
  material 
  

   has 
  not 
  yet 
  been 
  received, 
  and 
  we 
  are, 
  therefore, 
  unable 
  to 
  pre- 
  

   sent 
  this 
  year 
  results 
  of 
  tests 
  to 
  determine 
  their 
  exact 
  economic 
  

   value. 
  Samples 
  of 
  it 
  are, 
  however, 
  reported 
  to 
  have 
  been 
  made 
  

   into 
  good 
  stoneware 
  at 
  New 
  Orleans. 
  

  

  Johnson 
  reports 
  a 
  similar 
  clay 
  in 
  the 
  Grand 
  Gulf 
  rocks, 
  near 
  

   Lena, 
  and 
  it 
  is 
  also 
  reported 
  10 
  miles 
  southeast 
  of 
  Fort 
  Jessup. 
  

  

  