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CCS Seminar
Friday - April 6, 2007
12:00 noon
Physics Research Building - Room 595
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Professor Sergio Fagherazzi
Department of Earth Sciences - Boston University
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“Models of Deltaic and Inner Continental Shelf Landform Evolution”

*Abstract:*
The morphology of passive continental shelves is dictated by the input 
of sediments from rivers and their redistribution
by waves, currents and gravity-driven flows. The pathways followed by 
sediments, sculpt a landscape whose diversity
is rarely matched on Earth’s surface. Sediments are released to the 
shelf from triangularly shaped, elongated and dendritic
deltas. Barrier islands rise from gently sloping areas, tidal channels 
dissect flats and salt marshes, fine sediments form broad convex
deposits, and shallow submarine valleys convey sediments and water to 
the deep ocean. This morphological diversity is based
on two main building elements: water and sediments. Fluxes of water and 
sediments are particularly suitable to be modeled with
numerical methods based on the continuum hypothesis and hydrodynamics 
theory. In recent years, a series of models have been
developed to explore and understand the formation of shelf landforms 
from the dynamics of sediment transport. Herein I present
an overview of my most recent results on the modeling of deltaic and 
inner-shelf morphodynamics.

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