warman]  DIASTROPHISM DIKES.  293 
Dike  rock,  analysis  of,  from  California,  northern  part Bull  78,  pp  123, 124 
analysis  of,  from  California,  Ophir Ann  14,  n,  p  262 
from  California,  Placer  County Bull  148,  p  211;  Bull  168,  p  197 
from  Colorado,  La  Plata  quadrangle  (basic) GF  60,  p  7 
from  Maryland,  Howard  County Bull  148,  p  87;  Bull  168,  p  47 
from  Montana,  Castle  Mountain  district,  monchiquite-like Bull  148,  p  151 
Crazy  Mountains Bull  90,  p  71 
from  Nevada,  New  Ophir  claim Ann  17,  n,  p75 
from  New  York,  near  Ausable  Forks Bull  107,  p  26 
from  Yellowstone  Park,  Absaroka  Range Bull  168,  p  94 
near  Indian  Peak Bull  1 68,  p  100 
Stinkingwater  River Bull  168,  p  102 
various  localities Bull  168,  pp  99, 101 
Dike  rocks,  chemical  variations  of Ann  18,  in,  pp  302-304 
classification  of  basic Bull  107,  pp  37-39 
Dikes,  features  of Bull  150,  pp  145-146 
in  Alaska,  Fortymile  and  Rampart  series Ann  18,  in,  pp  146, 166,  225-239 
Matanuska  Valley,  etc Ann  20,  vn,  pp  309-311,  314 
southwestern Ann  20,  vn,  pp  224-226,  228-229,  230 
in  California,  Downieville  quadrangle GF  37,  pp  4-5 
Ophir  district Ann  14,  n,  pp  260-262 
Sonora  quadrangle GF  41,  pp  5-6 
in  Colorado,  Cripple  Creek  district Ann  16,  n,  p  138 
Elmoro  quadrangle GF  58,  p  3 
La  Plata  quadrangle GF  60,  p  7 
Pikes  Peak  quadrangle,  diabase  and  syenite GF  7,  p  2 
granitic GF  7,  p  1 
sandstone  in  granite GF  7,  p  3 
Rico  Mountains Ann  21,  n,  pp  31-32,  87-88,  90 
Ruby  Range Ann  14,  n,  p  200;  GF  9,  p  4 
Silver  Cliff  and  Rosita  Hills Ann  17, 
ii,  pp  280-284,  358-359,  382-383, 386-387 
Telluride  quadrangle GF  57,  p  7 
Walsenburg  quadrangle GF  68,  p  3 
in  Connecticut,  Triassic  area Ann  18,  n,  pp  42-48,  77,  80 
in  Grand  Canyon  of  Colorado Ann  14,  n,  pp  516-517;  Mon  n,  pp  95-96 
in  Idaho,  Boise  quadrangle GF  45,  p  2 
Idaho  Basin,  associated  with  granite Ann  18,  in,  pp  682-683,  710 
western-central  granite Ann  20,  in,  pp  85-86,  118, 196 
in  Lake  Champlain  region,  trap : Bull  107 
in  Lake  Superior  region Mon  v,  pp  143-144,  370,  379,  etc. 
Penokee  district,  associated  with  iron  ore Mon  xix,  pp  271-275,  276-279 
in  Maine,  Aroostook  volcanic  area Bull  165,  pp  149-151 
Mount  Desert  Island Ann  8,  n,  pp  1052-1057 
in  Massachusetts,  Cape  Ann  district Ann  9,  pp  579-583,  589-596 
western Mon  xxix,  pp  169,  216,  324-328,  411-418 
in  Michigan,  Crystal  Falls  district,  Archean Ann  19, 
in,  pp  32-33, 122;  Mon  xxxvi,  pp  45-49 
Marquette  district Ann  15, 
pp  505-509,  515-516;  Mon  xxvin,  pp  178-183, 506-514, 538 
in  Minnesota,  southwestern Bull  157,  pp  115-131 
in  Montana,  Butte  district,  rhyolite GF  38,  p  2 
Fort  Benton  quadrangle - GF  55,  p  4 
