Please consider submitting an abstract to:
Session 222: Geological Society of America,
Annual Meeting, Denver Colorado:
Proterozoic Accretion of the North
American Continent – United Plates of America Revisited
It has been nearly three decades since Paul
Hoffman’s (1988) influential United Plates of America paper. The
two-stage process involving first amalgamation of Archean blocks
and second, continental growth by accretionary orogenesis is
largely intact. However, there have been major new data sets and
new insights concerning the timing, tectonic setting, and nature
of crustal materials both within the Laurentian core and at the
margins. The goal of this session is to bring together
researchers from across the continent (and from once-adjacent
continents) to present and discuss new data and to ultimately
work toward a new image for the composite Laurentian tectonic
fabric and history during its critical period of growth.
Submissions concerning the accretion of the Canadian Shield and
the subsequent accretionary orogens are encouraged.
We anticipate oral and poster sessions.
Mike Williams
Karl Karlstrom
David Corrigan
Jeffrey Amato
Deanne van Rooyen
-- Michael L. Williams Department of Geosciences 611 NOrth Pleasant St. University of Massachusetts Amherst, MA, 01003 413-545-0745