132         CONTRIBUTIONS   TO    ECONOMIC    GEOLOGY,  L906,   PART    I. 
which  was  awaiting  shipmenl  in  May,  L906.     The  rock  lies  nearly  (lal 
here  and  shows  the  following  section: 
Section  of  paint-ore  bed  at   Wildwood,  Ga. 
l  aches. 
Shale. 
Ore 8 
Shale 1 
Ore I<> 
Shale \ 
Ore 9 
Shale 
Estelle.  Easl  of  Lookoul  Mountain  the  Etockwood  formation 
becomes  thicker  and  contains  less  limestone,  sandy  shale  and  beds 
of  sandstone  being  developed.  At  Estelle  is  exposed  a  good  railroad 
section  of  the  formation,  nearly  continuous  from  the  Chickamauga 
limestone  below  to  the  Chattanooga  shale  above,  and  from  this  sec- 
tion, in  which  the  rocks  dip  at  angles  of  5°  to  9°,  the  thickness  is 
computed  to  be  960  feet.  The  ore  seams  are  just  below  the  middle 
of  the  formation.  Two  ore  beds  about  25  feet  apart,  outcropping  on 
the  northwest  side  of  the  Pigeon  Mountain  syncline,  are  worked 
extensively  at  Estelle  for  iron  ore  to  supply  the  Southern  Steel  Com- 
pany's furnace  at  Chattanooga.  The  beds  at  I  his  place  dip  5°  to 
14°  S.  50°  E.,  and  arc  to  a  large  extent  wwAcv  a  shallow  cover 
especiall}  the  upper  bed.  The  lower  bed  is  so  thoroughly  leached 
and  so  pure  in  places  that  the  ore  from  certain  openings  at  the  mind 
is  sold  for  painl  manufacture  rather  than  for-  smelting.  On  the  west, 
side  of  the  hollow  through  which  the  Chattanooga  Southern  Railway 
passes  arc  two  openings,  driven  on  the  strike  of  the  beds  for  200  feet 
or  more  entirely  in  soft  ore.  The  cover  over-  the  beds  here  is  only 
L6  to  20  feet  thick.  Where  covered  by  enough  shale  to  include  the 
higher  ore  bed  the  ore  of  the  lower-  bed  becomes  hard.  The  follow- 
in-'  section  show-  the  character  of  the  lower  ore  bed  al  a  distance  of 
200  feet   from  the  month  of  one  of  these  openings. 
Section  in  soft-ore  opening  <//  Estelle,  Ga 
[nches. 
Shale. 
Sofl  ore 4 
Bard  shale  or  "  jack  reek  " ."> 
Soft  ore  15 
Shah-...    2 
Sell    ere 8 
Shale. 
The  composition  of  some  of  the  ore  from   this  place  is  shown   by 
the  following  analysis: 
Analysis  of  soft  orefrom  low er  seam,  Estelle,  Ga. 
[Authority,  Southern  Steel  Companj    Chattanc 
Ferric  oxide ' 72.  si; 
[nsoluble 21.00 
Phosphorus ' to 
Manganese 30 
