CLINTON  OR  RED  ORES  OF  NORTHERN  ALABAMA. 
177 
Measurements  of  the  ore  here  gave  the  following  results: 
Sections  on  south  sidt  of  gap  near  PortersviUe,  Ala. 
1. 
2. 
Ore                     
Inches. 
20 
14 
17 
Indies. 
23 
Shale                        
8 
Ore 
20 
About  50  feet  vertically  below  this  main  ore  bed  a  thin  seam  of  ore,  perhaps  averaging 
1  foot  in  thickness,  shows  in  the  road.  This  is  not  worked,  and  no  other  ore  seams  have 
been  found. 
The  following  analyses  by  M.  C.  Shannon  cover  the  results  on  a  large  number  of  car- 
loads of  the  PortersviUe  hard  ore: 
Analyses  of  PortersviUe  hard  ore. 
Silica  (Si02) 
Alumina  (A1203) . . 
Metallic  iron  (Fe)  . 
Lime  (CaO) 
Phosphorus  (P) . .. 
1. 
2. 
3. 
4. 
5. 
(i. 
7. 
8. 
|     5.66 
4.  94 
5.  GO 
9. 18 
G.  42 
7.86 
5.80 
5.  02 
33.  05 
33.  72 
25.  52 
38.00 
30.  35 
31.20 
31.95 
32.  00 
25.20 
22.  90 
30.82 
19.04 
2.",.  88 
23.71 
26.  62 
24.  22 
n.  d. 
n.  (1. 
n.  d. 
n.  d. 
n.  d. 
n.  d. 
n.  d. 
n.  d. 
Aver- 
age. 
G.  29 
31.  98 
24.80 
Crudup. — The  Lacey-Buek  Iron  Company  operates  mines  on  an  exceptionally  heavy 
ore  bed  at  Crudup,  the  ore  being  mostly  shipped  to  the  furnaces  at  Trussville,  Ala.  The 
ore  bed  is  from  5  to  7  feet  thick,  without  any  shale  parting.  At  the  mine  the  bed  dips 
26°  SE.  The  mines  were  formerly  worked  as  open  cuts,  but  now  practically  all  the' ore 
comes  from  a  single  slope.  No  analyses  of  ore  from  these  mines  are  at  present  available, 
but  McCalley  quotes  the  following  as  an  average  of  the  ore  from  a  group  of  old  workings 
near  Crudup : 
Average  analysis  of  ore  from  old  workings  near  Crudup,  Ala. 
S  ilica L0. 51 
Metallic  iron 42.  45 
Phosphorus  anhydride 1.017 
Attalla. — In  the  immediate  vicinity  of  Attalla  two  mining  companies  are  now  operating 
on  the  red  ore,  the  mines  being  located  west  and  northwest  of  the  town,  on  and  near  Moragne 
Mountain. 
The  mines  of  the  Alabama  Consolidated  Coal  and  Iron  Company  are  located  near  a  gap  at 
the  northeast  end  of  Moragne  Mountain,  about  half  a  mile  north  of  Attalla.  The  ore  here 
is  from  3  to  4  feet  thick,  dips  30°  to  35°,  and  has  been  worked  down  on  the  slope  for  almost 
a  thousand  feet  without  marked  change  in  character.  This  fact  is  worth  noting,  for  the 
surface  developments  at  this  mine  caused  Russell  to  consider  the  Clinton  ore  to  be  merely 
a  surface  deposit.  This  early  error  has  been  followed  by  most  text-book  writers  on  economic 
geology,  despite  the  fact  that  even  a  casual  personal  acquaintance  with  the  district  in  its 
present  condition  would  suffice  to  prove  that  it  is  an  error. 
Soft  ores  from  surface  workings  near  this  gap  gave  McCalley  the  following  results: 
Analysis  of  soft  ores  near  Attalla,  Ala. 
Silica 8. 39 
Metallic  iron 53.  92 
Phosphorus  anhydride 1-55 
