HazWaste 15 - Reading-> I read Chapter 15. Chapter 15...

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Reading-> I read Chapter 15. Chapter 15 Questions 15.8 a) Resistivity- The resistivity method measures the electric potential between two electrodes driven into the ground. The data is used to figure out groundwater flow potential, as well as subsurface info like depth to bedrock/water table, change in soil types, contaminant levels, and aquifer boundaries. b) Seismic- The seismic method measures the speed of introduced seismic waves as measure by geophones at different distances and uses that information to determine the depth to bedrock. c) Magnetometry- The magnetometry method measures the magnetic fields in the subsurface from which you can tell things like where metal drums or underground storage tanks are buried or other ferromagnetic materials since these materials upset the earth’s natural magnetic field. d) Electromagnetic- The electromagnetic conductivity method measures the average conductivity over the effective depth of a survey and from that data information like material type, discontinuities (fractures), and groundwater chemistry which provides an
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This homework help was uploaded on 04/09/2008 for the course ENVIRONMEN 570.423 taught by Professor Alavi during the Spring '08 term at Johns Hopkins.

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HazWaste 15 - Reading-> I read Chapter 15. Chapter 15...

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