USGS Ground Water Information

Branch of Geophysics

	Magnetic resonance sounding (MRS) surveys were conducted at Cape Cod, Massachusetts, in November 2001. The surveys were conducted in unconsolidated glacial sediments, primarily sands and silts. This study explored if and how MRS could be used to locate a borehole.
The data collected at Cape Cod were inverted to solve for estimated water content, relative permeability of the sediments, and the decay time of the magnetic resonance signal. The graphs below show, from left to right: water content and T1 decay time, in percent, with depth; relative permeability in meters per second, with depth; and the change in amplitude of the signal with time.
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URL: http://water.usgs.gov/ogw/bgas/mrs/capecod_mrs.html
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Page Last Modified: Tuesday, 17-Jul-2007 10:18:02 EDT