PALEOZOIC GEOLOGY

•   Archean: _____________________
•   Late Proterozoic: possible _________________
•   Ea. PZ: continents in equatorial latitudes
•   Laurentia (Transgressive and ____________________ sequences)
•   Gondwanaland (_________________ _____ _________)
•   Formations are time _________________________. What does it mean?

 

 
 
 
 
 
 
 
 
 
 

•  Ordovician:

  Baltica =>___________  Laurentia
  Gondwana = ________________(1 million y.)
                             sea level ___________; tillites

•   Mid PZ:

  Baltica & Laurentia collide = ________________________
•     Parana Basin Fauna (South): cool fauna
             Arctic regions => Cooler, drier climates
  Warming up afterwards =>  evaporites & reefs => radiation of biota, sea level rose
•     End of Devonian:
   _____________ _____________ => glaciation

•   Late PZ:
•  Carboniferous -     Pangea almost complete

  Sea level ____________, ______________and evap. at ____________ latitudes
___________ along the _______________ coast
 Appalachian rainshadow => _______________ & __________________
•     Glaciation in ___________________

                Sea level  dropped => ammonoid & crinoid extinction
•     Alleghenian Orog.: ____________/ ____________________collide => _____________ belt
•     Euramerican Flora  different from Gondwana Flora

•  Permian: Ural Mountains (___________________collision)
  Drier climates => __________________& ________________
  Provincial floras. __________________ replace _______________

•   Transcontinental Arch: _____________ _____  __________ ___________ most of the PZ

 
•   Orogenies along Eastern North America

 Subduction along the __________________Ocean
•   Taconic: __________ ____________collision => Taconic Highlands                    (Ord.)

 
•    _________________:  Baltica
 (Caledonian) Avalonia + ophiolites                                                                      collided (Dev.)
    Carolina Terrane
    Old Red Sandstone (erosion of Acadian Mtns)
•    Alleghenian  (Hercinian): Gondwana & Euramerica collide =_______________       (Cb)
 Appalachian fold &thrust belt
•        _________ and __________
•        Blue Ridge
•       _______________
•     Coal swamps: significance?  __________________________________________

Michigan Basin:Mid-PZ _______________ ___________________

•   Western North America:
•    __________________deposition in W Laurentia                                 through Ord.

   Continental rise deposits (_____________ _____________)
 
•    Antler Orog.: _________ _______ collision => Ophiolites

    (Klamath & Sa. Nevada)                                                                           Mid. Dv
 
•    Ancestral Rockies (uplifted blocks= ______________ collision)               Perm

                               to the W: ______________Basin = evaporites
 
•   _______________ Orog.:  Another Is. arc collides                                   Perm/Tr

                                            ________________ sequence




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