USGS Research Geologist Gives "Geologic Control on the Evolution of Nearshore Environments" Presentation at NOAA Office

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USGS geologist Jim Flocks presented recent research into the influence of the geologic framework on the evolution of nearshore shore-oblique sand ridges in the northern Gulf of Mexico at the NOAA Southeast Regional Office speaker series. 

A perspective model of the morphology and geologic framework near Petit Bois Island showing the relationships between seafloor f
Petis Bois Pass and offshore shoals are visible from acoustic surveys. (Public domain.)

Geologist Jim Flocks presented recent research into the influence of the geologic framework on the evolution of nearshore shore-oblique sand ridges in the northern Gulf of Mexico at the NOAA Southeast Regional Office (SERO) speaker series. These ridges are fairly common in low-slope marine environments and provide important fisheries habitat. While progress has been made in understanding the growth of these ridges, few efforts have considered the influence of underlying geology on shoal formation and evolution. Flocks presented results from a case study of the Gulf Islands National Seashore demonstrating the importance of geology on nearshore shoal evolution. Results of the study were published in the Journal of Continental Shelf Research.

To read the manuscript, visit https://doi.org/10.1016/j.csr.2015.04.008.

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Date published: January 10, 2018
Status: Active

Science Support for the Mississippi Coastal Improvement Project

Since 2007, the USGS (with NPS and USACE) has been mapping the seafloor and substrate around the Mississippi barrier islands to characterize the near-surface stratigraphy and identify the influence it has on island evolution and fate. Research is part of the Geologic and Morphologic...

Contacts: James Flocks