NEW    ENGLAND.  567 
The  schistosity  of  the  two  series  is  parallel,  but  this  is  regarded  as 
due  to  disintegration  before  the  Mendon  series  was  deposited  and  to 
post-Mendon  folding. 
Richardson,34  in  1902,  notes  the  distribution  of  "  Huronian  "  rocks 
in  Orange  County,  Vt.  These  consist  of  magnetitic  and  garnetifer- 
ous  chlorite  and  mica  schists,  with  beds  of  serpentine  and  soapstone 
as  alteration  products.  They  are  also  associated  with  granite,  diorite, 
and  gneiss. 
Richardson,35  in  1906,  discusses  the  areal  and  economic  geology  of 
northeastern  Vermont.  Flanking  the  Green  Mountains  on  the  east 
are  pre-Cambrian  chlorite  schists,  micaceous  quartzites,  and  gneisses, 
carrying  serpentine  and  asbestos  deposits.  No  attempt  has  been 
made  to  determine  the  structural  features  except  near  its  contact  with 
the  Waits  River  limestone  on  the  east. 
An  eastern  belt  lies  directly  west  of  Connecticut  River.  It  stretches 
across  Essex,  Caledonia,  Orange,  and  Windsor  counties,  reaching 
a  breadth  of  5  to  10  miles  in  Essex  County  and  becoming  a  narrow 
band  south  of  Wells  River.  Lunenburg  schist  is  the  chief  pre-Cam- 
brian representative  in  the  eastern  belt.  Through  this  Connecticut 
River  has  cut  its  sinuous  channel  along  the  interstate  boundary.  It 
is  a  highly  metamorphic,  green,  greasy,  chlorite  schist,  in  many  places 
studded  with  pyrite.  The  eastern  border  of  the  Lunenburg  schist 
is  cut  by  several  outcrops  of  protogene  gneiss. 
Flanking  the  Lunenburg  schist  in  the  west  is  a  narrow  belt  of 
sheared  quartzite.  Although  no  fossils  have  been  found  in  the  Lunen- 
burg schist  and  in  this  quartzite  in  the  areas  of  the  least  meta- 
morphism,  it  is  believed  that  their  true  stratigraphic  position  is 
Cambrian.  A  rather  wide  belt  of  metamorphic  feldspathic  schists 
occurs  in  Concord  and  Waterford.  It  is  suggested  that  the  Lunen- 
burg schist  itself  will  be  found  to  be  Paleozoic. 
SECTION  4.     MASSACHUSETTS. 
SUMMARY  OF  LITERATURE. 
Hitchcock  (Edward),36  in  1818,  divides  the  Primitive  rocks  of  a 
section  of  Massachusetts  on  Connecticut  River  into  syenite,  granite, 
and  argillite,  alternating  with  mica  slate,  siliceous  slate,  and  chlorite 
slate. 
Dewey,37  in  1818,  states  that  the  country  of  the  Taconic  Range  and 
Saddle  Mountain  is  principally  Primitive.  Granite  is  found  on  both 
sides  of  Hoosac  and  Pownal  mountains.  Gneiss  and  mica  slate  are 
found  on  Hoosac  and  Saddle  mountains.  The  Taconic  Range  is 
composed  principally  of  a  talcose  or  soapstone  slate,  but  quartz, 
granular  limestone,  and  argillaceous  slate  are  found.  Quartz  occur- 
on  Stone  Hill,  above  which  is  argillaceous  slate.    Granular  Limestone 
