The ALGA newsletter article is GEOPHYSICAL COVERAGE FOR ENVIRONMENTAL PROJECTS

"One of the unknown factors on environmental projects is, ‘has there been buried items or chemical contamination on the site that has not been found’ and this is where geophysics can come into play", writes Timothy.

"Alpha Geoscience has developed an innovative use of the DUALEM-4 Ground Conductivity Meter, mounting it on a 4x4 vehicle.  Mounting across the vehicle provides a swath of information 5 metres wide over open ground.  This combined with Differential Global Positioning System (DGPS) for navigation and positioning allows rapid data collection.

The data is then input into a mapping package to provide a detailed colour image of the site and interpretation of the likely targets.

An image of the site can be produced giving detailed; position of, extent and likely quantities of burial items or chemicals on the site. 

This technique has been used very successfully on Defence and non-Defence sites around Australia over the past year."

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This article reproduced by kind permission of The Australasian Land and Groundwater Association (ALGA) http://www.landandgroundwater.com/