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Quaternary and Modern Depositional Environments
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Faculty: Jon Boothroyd and Cheryl Hapke (USGS)
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URI Collaborative Faculty and Research Associates: M. Stolt and M. Bradley (Natural Resources Science), J. King (GSO)
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Other Collaborators: : J. Turenne (NRCS)
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Research stresses an integrated approach to the study of geomorphic and sedimentary processes,
landform development and change at varying size and time scales, and arrangement of internal
structure of resulting morphologic forms. Past and ongoing studies involve fluvial processes
on braided rivers in Alaska, the measurement of shoreface, beach, barrier and headland morphologic
change including long-term (for past 29 years) beach profile stations on the coast of Rhode Island,
lagoonal and estuarine tidal-current processes and resulting morphologic forms, the geology of
wetlands, the investigation of lithofacies and interpretation of depositional processes in
Pleistocene-age glacial fluvial, glacial lacustrine, and glacial marine environments in eastern
Maine, outer Cape Cod and Rhode Island. Geologic studies in support of archeology investigated
the landscape and climate that existed during early post-glacial time when humans first occupied
what is now southern New England.
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Present work includes: the study of the Quaternary geology of Narragansett Bay,
particularly the deglacial history of the Bay by means of side-scan sonar and
subbottom reflection profiling; the digital mapping of shoreline change for
both Narragansett Bay and the south shore of Rhode Island; the understanding
of coastal geologic hazards due to geologic processes operating during storms:
and the study of the geologic aspects of coastal-zone planning federal and state
coastal zoning changes to reflect shoreline retreat caused by storms and inundation
from accelerated sea-level rise due to global warming.
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