234  ME.  F.  D.  POWEK  ON  THE  PAMBELA  GOLD-DEPOSITS.  [May  1 893. 
these  lenses  varies,  but  several  of  them  in  succession  will  form  a 
4  shoot/  These  shoots  have  a  southerly  4  pitch/  and  as  a  rule  are 
short,  but  one  at  Faulkner's,  running  into  the  Pambula  Company’s 
ground,  has  so  far  proved  to  be  from  400  to  500  feet  long.  The 
more  broken  and  wider  the  lode,  the  richer  it  is  found  to  be.  The 
spaces  between  the  leuses,  where  they  overlap  one  another,  are 
occupied  by  clay,  and  when  this  material  is  scraped  out  it  has  at 
times  yielded  as  much  as  1  lb.  of  gold  to  the  4  dish/  1  On  the 
Plan 
AA  •-  Pyrophyllite-sehist. 
BB  =  Well-marked  hanging  wall. 
CC  =  Quartz  indicator. 
Cross  Section 
DD  =  Shattered  rock  containing  gold, 
not  separated  by  a  well-defined 
plane  from  the  schist  on  the 
footwall-side. 
surface  the  lode  material  is  bleached  by  organic  matter ;  a  little 
lower  down  it  is  tinted  red,  owing  to  the  decomposition  of  iron 
pyrites  ;  while  still  deeper  the  rock  has  a  greenish  hue,  and  is  more 
or  less  impregnated  with  iron  pyrites.  In  Pipe  Clay  Creek,  a  dyke 
of  clay  running  E.  and  W  .  diverts  the  course  of  the  lodes  where  it 
cuts  them,  but  the  latter  eventually  return  to  their  original  direc¬ 
tion.  This  dyke  is  2  or  3  feet  wide,  and  4  underlies  ’  slightly  to 
the  south. 
From  the  above  data  it  will  be  observed  that  there  are  many 
points  in  common  between  these  deposits  and  those  which  are 
universally  acknowledged  to  be  lodes.  These  deposits  have  a 
general  course  parallel  to  the  sea-coast,  but  individually  run  in 
such  directions  as  to  divide  the  district  into  large,  irregular  lenses, 
which  together  form  a  system  of  gold- deposits.  Those  zones  of 
disturbed  rock  which  are  off  the  main  line  are  poor  in  gold.  The 
deposits  have  at  least  one  good  wall,  and  are  made  up  of  shattered 
4  country/  sometimes  showing  a  brecciated  structure,  the  broken 
particles  having  been  more  or  less  rounded,  perhaps  by  corrosive 
liquids.  Evidences  of  motion  are  also  to  be  seen  in  the  striations 
on  the  quartz  forming  the  indicator,  and  in  the  clay  between  the 
lenticular  masses  of  rock.  The  gold  occurs  in  4  shoots  ’  which  4  pitch  * 
1  The  ‘  dish  ’  is  a  measure  of  capacity=572  cub.  ins. 
