outline16 - Outline16 3/20/03...

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  Outline 16 3/20/03   1. Tectonic history of Laurentia  (North America)       Starting arrangement  of continent in L. Proterozoic          Core of continent, missing  parts of margin, extra  areas       Geosynclines  on most margins from breakup of Rodinia          Cordilleran Geosyn.  on present W - L. Proterozoic   Recent          Appalachian Geosyn.  on present E - L. Proterozoic   Triassic          Ouachita Geosyncl.  on present S - L. Cambrian   Permian          Franklinian Geosyn.  on present N - Cambrian?   Mississippian   Most welded to Laurentian core (craton) in Paleozoic   2. Cratonic history of Laurentia  (North America)        Craton  quiet, stable, mostly gentle up & down motions
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          (doming, subsidence), see these as transgressions,
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