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U.S. Geological Survey Open-File Report 2011-1040

Continuous Resistivity Profiling Data From Great South Bay, Long Island, New York

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Figure 7, map of CRP profile locations and profile showing resistivity anomalies present on either side of a dredged channel in Great South Bay.
Figure 7. Location map showing a portion of the continuous resistivity profiling (CRP) tracklines and a graph of the inverted resistivity profile associated with the red trackline. This CRP profile (red trackline in map) shows resistivity anomalies present on either side of a dredged channel that likely truncates submerged confining units resulting in focused groundwater discharge to the channel. Navigation channels like this are common along the northern side of Fire Island (see fig. 1 for location). The profile color scale ranges from blues to reds with reds representing the higher resistivity values corresponding to fresher (less saline) groundwater. Click on image for larger version.

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