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  SANTA 
  MARIA 
  OIL 
  DISTRICT, 
  CALIFORNIA. 
  

  

  Fernando 
  (upper 
  Miocene-Pliocene-Pleistocene) 
  fossils 
  from 
  the 
  Santa 
  Maria 
  district, 
  

  

  California 
  — 
  Continued. 
  

  

  Tapes 
  cf. 
  lacineata 
  Carpenter 
  

  

  Tapes 
  Btalej 
  i 
  Gabb 
  

  

  Tapes 
  tenerruna 
  Carpenter 
  ( 
  PI. 
  XXI 
  I, 
  

  

  Qg. 
  Hi' 
  

  

  TelUna 
  sp 
  

  

  Tellina 
  aiT. 
  bodegensls 
  Hinds 
  

  

  Terebratalia 
  occidentalls 
  Dall 
  (PI. 
  

  

  XXII, 
  figs. 
  -la. 
  Hi- 
  

  

  Thalotia 
  caflea 
  Gabb 
  (PI. 
  XXI, 
  figs. 
  

  

  • 
  

  

  Thracia 
  cf. 
  trapezoides 
  Conrad 
  

  

  Thyasira 
  afl. 
  gouldii 
  Philippi 
  

  

  Tresus 
  nuttallii 
  Conrad 
  

  

  Tritonlum 
  sp. 
  Indet 
  

  

  Trochita 
  radians 
  Lamarck 
  (PI. 
  XXI, 
  

  

  fig. 
  1) 
  

  

  Trochita 
  sp. 
  indet 
  

  

  Turritellaeooperi 
  Carpenter 
  ( 
  PI. 
  XXI 
  

  

  fig- 
  11) 
  

  

  Venericardia 
  californica 
  Dall 
  (PI. 
  

  

  XXIII, 
  fig. 
  4) 
  

  

  3 
  

  

  X 
  

  

  X 
  X 
  

  

  X 
  

  

  3 
  

  

  X 
  

  

  5. 
  

  

  5 
  

  

  4469. 
  One 
  hundred 
  yards 
  northeast 
  of 
  California 
  Coast 
  oil 
  well 
  No. 
  3, 
  1 
  mile 
  east 
  of 
  Divide, 
  and 
  3 
  miles 
  

   southeast 
  of 
  Orcutt. 
  

  

  4471. 
  AJcatraz 
  asphalt 
  mine, 
  3 
  miles 
  east 
  of 
  Sisquoc. 
  

  

  4472. 
  Pennsylvania 
  asphalt 
  mine, 
  3£ 
  miles 
  southeast 
  of 
  Orcutt. 
  

  

  4473. 
  Waldorf 
  asphalt 
  mine, 
  3 
  miles 
  south-southeast 
  of 
  Guadalupe. 
  

  

  4474. 
  Railroad 
  cut 
  1 
  mile 
  north 
  of 
  Schumann 
  station. 
  

  

  4475. 
  Fugle 
  r 
  Point 
  asphalt 
  mine, 
  1 
  mile 
  north-northeast 
  of 
  Gary, 
  at 
  head 
  of 
  Santa 
  Maria 
  Valley. 
  

  

  4476. 
  Asphaltum 
  layer 
  above 
  Monterey 
  shale, 
  near 
  Folsom 
  well 
  No. 
  3, 
  Santa 
  Maria 
  oil 
  field, 
  3 
  miles 
  

   southeast 
  of 
  Orcutt. 
  

  

  4477. 
  Near 
  Folsom 
  well 
  No. 
  4, 
  Santa 
  Maria 
  oil 
  field, 
  2\ 
  miles 
  southeast 
  of 
  Orcutt. 
  

  

  4481. 
  Five 
  miles 
  N. 
  30° 
  E. 
  of 
  Lompoc 
  bench 
  mark 
  95, 
  in 
  prominent 
  sandstone 
  beds 
  around 
  Purisma 
  

   oil 
  wells. 
  

  

  4485. 
  One-half 
  mile 
  south 
  of 
  Sisquoc. 
  

  

  4486. 
  Echinarachnius 
  ashleyi 
  horizon, 
  immediately 
  west 
  of 
  Santa 
  Maria 
  Oil 
  and 
  Gas 
  Company's 
  well 
  

   No. 
  4, 
  2 
  miles 
  southeast 
  of 
  Orcutt. 
  

  

  4487. 
  Immediately 
  east 
  of 
  head 
  of 
  Howard 
  Canyon, 
  4 
  miles 
  north-northeast 
  of 
  Los 
  Alamos. 
  Echi- 
  

   narachnius 
  ashleyi 
  horizon. 
  

  

  4488. 
  On 
  ridge 
  south 
  of 
  road 
  about 
  2\ 
  miles 
  northwest 
  of 
  Blake. 
  

  

  4489. 
  Southeast 
  side 
  of 
  La 
  Zaca 
  Creek, 
  where 
  it 
  empties 
  from 
  steep 
  canyon; 
  at 
  base 
  of 
  asphalt 
  sand- 
  

   stone 
  in 
  shale, 
  8 
  miles 
  north 
  of 
  Los 
  Olivos. 
  

  

  4490. 
  Four 
  miles 
  east-northeast 
  of 
  Los 
  Alamos, 
  on 
  Cuaslui 
  Creek. 
  

  

  4491. 
  Gully 
  2J 
  miles 
  west-northwest 
  of 
  Blake. 
  

  

  4492. 
  One 
  and 
  three-fourths 
  miles 
  S. 
  5° 
  W. 
  of 
  bench 
  mark 
  425 
  of 
  Los 
  Alamos 
  Valley, 
  one-half 
  mile 
  

   northwest 
  of 
  sink 
  on 
  top 
  of 
  ridge. 
  

  

  4506. 
  One 
  mile 
  southeast 
  of 
  summit 
  of 
  Redrock 
  Mountain, 
  along 
  ridge, 
  near 
  1,700-foot 
  knob. 
  

   4523. 
  One 
  mile 
  due 
  south 
  of 
  Sisquoc, 
  in 
  ravine. 
  

  

  QUATERNARY. 
  

  

  GENERAL 
  STATEMENT. 
  

  

  Three 
  distinct 
  classes 
  of 
  Quaternary 
  deposits 
  younger 
  than 
  the 
  latest 
  

   Fernando 
  can 
  be 
  differentiated 
  in 
  this 
  region, 
  although 
  it 
  is 
  difficult 
  

   to 
  distinguish 
  between 
  them 
  areally. 
  They 
  are 
  terrace 
  deposits, 
  dune 
  

   sand, 
  and 
  alluvium, 
  each 
  one 
  of 
  which 
  as 
  mapped 
  may 
  possibly 
  rep- 
  

   resent 
  more 
  than 
  one 
  period 
  of 
  deposition. 
  They 
  are 
  deposits 
  of 
  

   comparatively 
  little 
  thickness 
  laid 
  down 
  unconformably 
  upon 
  the 
  

   older 
  formations 
  subsequent 
  to 
  the 
  greater 
  part 
  of 
  the 
  disturbance 
  

   and 
  deformation 
  that 
  has 
  affected 
  the 
  region. 
  

  

  TERRACE 
  DEPOSITS. 
  

  

  GENERAL 
  DESCRIPTION. 
  

  

  Terraces 
  are 
  common 
  in 
  this 
  region 
  and 
  are 
  among 
  the 
  most 
  promi- 
  

   nent 
  topographic 
  features. 
  They 
  are 
  fairly 
  even 
  surfaces, 
  invariably 
  

  

  