Geoforce specialises in high definition, rapid characterisation of the subsurface using state of the art geophysical equipment. Geoforce provides geophysical solutions for environmental, hydro-geological and agricultural applications including water table, salinity and soil mapping. A number of our geophysical surveys can be rapidly acquired using quad bike mounted systems which have proven to be very versatile for environmental mapping applications.

A summary of the geophysical instruments available for environmental and agricultural surveys are as follows (but are not limited to):

• Airborne Electromagnetic Surveying - SKYTEM is An approach for high definition detailed cross-sectional mapping for groundwater exploration, paleochannel mapping, salinity characterisation and mapping of other geological features.
• EM38 - a productivity mapping tool where salinity is present with typical depth of investigation of 0 to 50cm.
• EM31 - maps the sub soil between approximately 0 to 4m. The EM31 has been successfully used to identify areas where trees should be planted to avert future salinity problems.
• Magnetics - Useful to map basement structures and identification of buried metallic landfill, drums and services.
• Radiometrics - valuable tool to assist soil mapping.
• Electrical Resistivity Imaging (ERI) - suitable for a number of environmental application including ground water table and salinity mapping, monitoring of leachate in 2D, hydro-geological investigations and identification of cavities in limestone.
• Shallow Electromagnetics (TEM and FEM) - suitable for deeper mapping of ground water table and salinity as well as location of buried drums and storage tanks.
• Ground Penetrating Radar (GPR) - suitable for identification of cracks/faults, services, buried tanks, landfill and tree roots.
• Borehole Radar (BHR) - new capability introduced at Geoforce in 2005 used for tomographic mapping between boreholes to identify cracks/faults, cavities, buried tanks, services and geological contacts.
• Induced Polarization (IP) - can be used to map landfill sites. By mapping chargeability IP can distinguish clays from salt water in the subsurface.