﻿330 
  , 
  Scientific 
  Intelligence. 
  

  

  lems 
  of 
  New 
  Zealand 
  is 
  the 
  strati 
  graphic 
  relation 
  of 
  the 
  Cretace- 
  

   ous 
  to 
  the 
  Tertiary 
  and 
  of 
  the 
  various 
  Tertiary 
  formations 
  to 
  

   each 
  other. 
  Unconformities 
  between 
  Cretaceous 
  and 
  Tertiary, 
  

   between 
  Early 
  Tertiary 
  and 
  Miocene, 
  and 
  between 
  Miocene 
  and 
  

   Pliocene 
  have 
  been 
  strongly 
  affirmed 
  and 
  strongly 
  denied. 
  Mar- 
  

   shall 
  has 
  advanced 
  the 
  extreme 
  view 
  that 
  physical 
  conformity 
  

   characterizes 
  the 
  entire 
  Cretaceous-Tertiary 
  sequence 
  of 
  New 
  

   Zealand. 
  New 
  studies 
  bearing 
  on 
  this 
  problem 
  have 
  been 
  made 
  

   by 
  the 
  Director 
  of 
  the 
  Survey. 
  A 
  clear 
  angular 
  unconformity 
  

   between 
  Miocene 
  and 
  probable 
  Cretaceous 
  rocks 
  was 
  noted 
  on 
  

   Komiti 
  Peninsula 
  and 
  an 
  unconformity 
  between 
  Miocene 
  and 
  

   Early 
  Tertiary 
  or 
  Cretaceous 
  at 
  Kaipara 
  Flats 
  (North 
  Island). 
  

   Field 
  studies 
  in 
  Marlborough 
  and 
  North 
  Canterbury, 
  with 
  special 
  

   reference 
  to 
  unconformities 
  post-dating 
  the 
  Amuri 
  limestone, 
  

   recognized 
  as 
  "Upper 
  Cretaceous 
  (Daman) 
  or 
  very 
  early 
  Ter- 
  

   tiary," 
  resulted 
  in 
  the 
  recognition 
  of 
  a 
  new 
  stratigraphic 
  hiatus. 
  

   At 
  Kaikoura 
  the 
  Amuri 
  limestone 
  is 
  separated 
  from 
  the 
  over- 
  

   lying 
  Tertiary 
  sediments 
  (Weka 
  Pass 
  beds) 
  by 
  a 
  water-worn 
  

   surface 
  on 
  which 
  lies 
  a 
  thin 
  layer 
  of 
  conglomerate 
  composed 
  of 
  

   fragments 
  of 
  phosphatized 
  limestone 
  with 
  glauconite 
  and 
  green- 
  

   sand. 
  At 
  Amuri 
  Bluffs, 
  Weka 
  Pass, 
  and 
  at 
  Waikari, 
  the 
  same 
  

   features 
  were 
  noted. 
  The 
  suggestion 
  is 
  offered 
  that 
  the 
  presence 
  

   of 
  an 
  unconformity 
  at 
  a 
  given 
  horizon 
  in 
  one 
  locality 
  is 
  not 
  incon- 
  

   sistent 
  with 
  its 
  absence 
  elsewhere 
  and 
  that 
  it 
  is 
  unnecessary 
  to 
  

   assume 
  that 
  any 
  of 
  the 
  stratigraphic 
  breaks 
  so 
  far 
  recognized 
  are 
  

   co-extensive 
  with 
  the 
  area 
  of 
  New 
  Zealand. 
  Mr. 
  Morgan 
  reaches 
  

   a 
  conclusion 
  in 
  harmony 
  with 
  the 
  belief 
  previous^ 
  expressed 
  by 
  

   McKay 
  that 
  the 
  Great 
  Marlborough 
  Conglomerate 
  (Pliocene?) 
  

   is 
  unconformable 
  with 
  the 
  Grey 
  Marl 
  (Early 
  Tertiary?), 
  thus 
  

   dissenting 
  from 
  the 
  view 
  of 
  C. 
  A. 
  Cotton 
  (Journal 
  of 
  Geology, 
  

   Volume 
  XXII, 
  1914, 
  pp. 
  346-363). 
  h. 
  e. 
  g. 
  

  

  3. 
  The 
  Gold 
  Belt 
  South 
  of 
  Southern 
  Cross 
  • 
  by 
  T. 
  Blatch- 
  

   ford. 
  With 
  Penological 
  Notes, 
  by 
  R. 
  A. 
  Farquharsox, 
  and 
  

   Minerological 
  Contributions, 
  by 
  E. 
  S. 
  Simpsox 
  and 
  A. 
  J. 
  Robert- 
  

   son. 
  Western 
  Australia 
  Geological 
  Survey. 
  Bulletin 
  63, 
  1915. 
  

   Pp. 
  186, 
  19 
  pis., 
  31 
  figs., 
  including 
  4 
  geological 
  maps. 
  — 
  Bedrock 
  

   in 
  the 
  vicinity 
  of 
  Southern 
  Cross 
  consists 
  of 
  highly 
  metamor- 
  

   phosed 
  sediments, 
  probably 
  Pre-Cambrian 
  in 
  age, 
  intruded 
  by 
  

   granite 
  and 
  by 
  masses 
  of 
  basic 
  igneous 
  rock. 
  The 
  granite 
  is 
  the 
  

   dominant 
  type 
  ; 
  it 
  occupies 
  85 
  per 
  cent 
  of 
  the 
  field 
  and 
  extends 
  

   widely 
  beyond, 
  covering 
  many 
  thousands 
  of 
  square 
  miles 
  ; 
  its 
  age 
  

   is 
  unknown. 
  At 
  the 
  contact 
  of 
  igneous 
  and 
  metamorphosed 
  sedi- 
  

   ments, 
  ironstone 
  lodes, 
  exposed 
  by 
  erosion, 
  stand 
  as 
  ridges. 
  The 
  

   outcrop 
  of 
  these 
  lodes 
  is 
  goethite 
  and 
  ferruginous 
  oxide 
  of 
  mangan- 
  

   ese; 
  below 
  the 
  zone 
  of 
  weathering 
  the 
  ore 
  is 
  iron 
  carbonate, 
  mag- 
  

   netite, 
  and 
  especially 
  pj-rrhotite. 
  One 
  solid 
  mass 
  of 
  pyrrhotite 
  

   at 
  Mount 
  Caudan 
  measured 
  70 
  feet 
  from 
  wall 
  to 
  wall. 
  These 
  iron- 
  

   stone 
  lodes, 
  also 
  amphibolites 
  and 
  ancient 
  sediments, 
  are 
  aurifer- 
  

   ous 
  ; 
  the 
  granites 
  and 
  associated 
  pegmatites 
  and 
  the 
  superficial 
  

   deposits 
  are 
  not 
  gold-bearing. 
  el 
  e. 
  g. 
  

  

  