﻿APR. 
  4, 
  1922 
  brouwer; 
  tectonic 
  features 
  dutch 
  east 
  indies 
  1S5 
  

  

  development 
  represented 
  by 
  Tenimber 
  Islands. 
  Flexures 
  and 
  faults 
  

   of 
  considerable 
  horizontal 
  magnitude 
  occur 
  at 
  the 
  walls 
  of 
  a 
  central 
  

   basin 
  which 
  has 
  been 
  formed 
  and 
  filled 
  with 
  sediments 
  in 
  Plio-Pleisto- 
  

   cene 
  time. 
  Later 
  a 
  general 
  elevation 
  of 
  the 
  island 
  has 
  produced 
  the 
  

   large 
  anticline 
  of 
  the 
  present 
  island, 
  with 
  the 
  highest 
  reefs 
  in 
  the 
  

   central 
  part. 
  We 
  suppose 
  that 
  in 
  this 
  later 
  stage 
  of 
  evolution 
  the 
  rate 
  

   of 
  horizontal 
  forward 
  progression 
  of 
  the 
  deeper 
  parts 
  was 
  greater 
  than 
  

   that 
  of 
  the 
  superficial 
  parts 
  and 
  that 
  the 
  parts 
  which 
  were 
  near 
  the 
  

   surface 
  and 
  originally 
  were 
  above 
  the 
  downward 
  moving 
  secondary 
  

   geosyncline 
  were 
  in 
  a 
  following 
  stage 
  of 
  evolution 
  above 
  rising 
  parts 
  

   at 
  greater 
  depth 
  and 
  were, 
  therefore, 
  elevated 
  above 
  the 
  sea. 
  

  

  A 
  fine 
  example 
  of 
  parallel 
  rows 
  of 
  islands 
  which 
  are 
  developing 
  

   as 
  geanticlines 
  with 
  intermediate 
  geosynclines 
  are 
  the 
  Tukang 
  Besi 
  

   Islands 
  southeast 
  of 
  Celebes. 
  They 
  consist 
  of 
  four 
  rows 
  — 
  two 
  of 
  which 
  

   bear 
  elevated 
  reefs 
  and 
  mark 
  the 
  geanticlinal 
  axes; 
  while 
  the 
  other 
  

   two 
  are 
  characterized 
  by 
  reefs 
  and 
  atolls, 
  and 
  mark 
  the 
  geosynclinal 
  

   axes. 
  

  

  Only 
  a 
  limited 
  number 
  of 
  the 
  general 
  t^^pes 
  of 
  fracture-movements 
  

   have 
  been 
  described. 
  The 
  position 
  of 
  the 
  fissures 
  and 
  faults 
  is 
  con- 
  

   trolled 
  by 
  a 
  great 
  many 
  factors, 
  the 
  discussion 
  of 
  which 
  would 
  exceed 
  

   the 
  scope 
  of 
  this 
  paper. 
  But 
  the 
  types 
  mentioned 
  sufficiently 
  illustrate 
  

   the 
  thesis, 
  that 
  the 
  majority 
  of 
  the 
  fractures 
  in 
  the 
  East-Indian 
  Archi- 
  

   pelago 
  are 
  the 
  surface 
  expression 
  of 
  differences 
  in 
  velocity 
  of 
  horizontal 
  

   and 
  vertical 
  movements, 
  which 
  are 
  the 
  result 
  of 
  compressional 
  stress. 
  

   That 
  these 
  movements 
  still 
  continue 
  is 
  proved 
  by 
  the 
  position 
  of 
  the 
  

   epicenters 
  of 
  modern 
  earthquakes, 
  of 
  which 
  we 
  will 
  mention 
  those 
  

   along 
  the 
  southwestern 
  prolongation 
  of 
  the 
  transverse 
  dislocation 
  in 
  

   Sunda 
  Strait 
  between 
  Java 
  and 
  Sumatra. 
  

  

  LITERATURE 
  AND 
  MAPS 
  

  

  A 
  bibliography 
  of 
  the 
  more 
  important 
  publications 
  on 
  this 
  subject 
  

   to 
  1917 
  is 
  given 
  in 
  the 
  Jaarboek 
  van 
  het 
  Mijnwezen 
  in 
  Ned. 
  Indie, 
  

   Verhand. 
  1917, 
  II, 
  with 
  Atlas. 
  Our 
  map 
  is 
  compiled 
  from 
  the 
  maps 
  

   in 
  this 
  atlas 
  with 
  additional 
  information. 
  

  

  Since 
  1917 
  there 
  have 
  appeared 
  other 
  publications 
  for 
  which 
  see 
  

   the 
  annual 
  bibliography 
  of 
  geological 
  publications 
  on 
  the 
  Dutch 
  

   East 
  Indies 
  by 
  R. 
  D. 
  M. 
  Verbeek 
  in 
  Verhand. 
  Geolog. 
  — 
  Mijnbouwk. 
  

   Genootschap 
  voor 
  Nederland 
  en 
  Kolonien. 
  

  

  