Skip Links

USGS - science for a changing world

Open-File Report 2009-1151

Continuous Resistivity Profiling and Seismic-Reflection Data Collected in 2006 from the Potomac River Estuary, Virginia and Maryland

By V.A. Cross, D.S. Foster, and J.F. Bratton

Right-click to Enter

ABSTRACT

In 2006 the U.S. Geological Survey conducted a geophysical survey on the Chesapeake Bay and the Potomac River Estuary in order to test hypotheses about groundwater flow under and into Chesapeake Bay. Resource managers are concerned about nutrients that are entering the estuary via submarine groundwater discharge and are contributing to eutrophication. The research carried out as part of this study was designed to help refine nutrient budgets for Chesapeake Bay by characterizing submarine groundwater flow and groundwater discharge beneath part of the bay’s mainstem and a major tributary, the Potomac River Estuary. The data collected indicate that plumes of reduced-salinity groundwater are commonly present along the shorelines of Chesapeake Bay and the Potomac River Estuary. Data also show that buried paleochannels generally do not serve as conduits for flow of groundwater from land to underneath the bay and estuary but rather may focus discharge of reduced-salinity water along their flanks, and provide routes for migration of saltwater into the sediments.

Posted September 2010

For additional information contact:
Director
U.S. Geological Survey
Woods Hole Coastal and Marine Science Center
384 Woods Hole Road
Quissett Campus
Woods Hole, MA 02543
(508)548-8700

http://woodshole.er.usgs.gov/

 


Suggested citation:

Cross, V.A., Foster, D.S., and Bratton, J.F., 2010, Continuous resistivity profiling and seismic-reflection data collected in 2006 from the Potomac River Estuary, Virginia and Maryland: U.S. Geological Survey Open-File Report 2009-1151. (Also available at http://pubs.usgs.gov/of/2009/1151/.)


Contents

Abstract

Introduction

Methods

Continuous Resistivity Profiling(CRP)

Summary of CRP survey details

Seismic-Reflection Profiles

Summary of seismic survey details

Profile Previews

Continuous Resistivity Profile Previews

Seismic-Reflection Profile Previews

Summary

Data Catalog

Acknowledgments

References Cited

Glossary



Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://pubs.usgs.gov/of/2009/1151/
Page Contact Information: GS Pubs Web Contact
Page Last Modified: Saturday, 12-Jan-2013 20:07:45 EST