Geophysical Survey Company – TerraDat (UK) Ltd

TerraDat Services and Applications

Magnetics

Magnetics

The magnetic survey technique is based on mapping localised variations in the Earth’s magnetic field caused by sub-surface magnetic materials, which range from naturally occurring magnetic minerals to man-made ferrous objects. This leads to a wide range of applications, from

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Crosshole Seismics

Seismic methods can provide detailed information about rock properties and geological structure between boreholes. Fewer boreholes are needed to achieve a continuous picture of the subsurface, thereby reducing overall costs and the risk of missing target features. Borehole seismic methods

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TerraDat provides expert geophysical survey services for both active and closed landfill sites.

Characterisation of Landfill Sites using Geophysics

Addressing the growing challenge of environmentally compliant landfill management, TerraDat provides expert geophysical survey services for both active and closed landfill sites. Our advanced, non-invasive techniques deliver high-resolution insights into landfill composition and boundaries, surpassing traditional methods in efficiency and

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TerraDat has innovated established geophysical survey techniques (resistivity tomography & seismic refraction) specifically for river and stream crossing investigations

River Crossings: Profiling Geology using Geophysics

Many of our clients constructing roads, laying pipelines or investigating historic bridges find profiling the geology beneath rivers tricky using conventional ground investigation methods. Since the path rivers take is often dictated by changes in geology, the problem can be

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Seismic Reflection survey undertaken on a beach

Seismic Reflection

TerraDat has specialist experience in designing and implementing high-resolution seismic reflection surveys for onshore and shallow marine environments. The company routinely carries out seismic survey work for geotechnical and environmental applications as well as larger-scale work for oil/mineral exploration.  

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MASW - Surface Wave Surveys

MASW (Surface Wave Surveys)

Multi-channel Analysis of Surface Waves (MASW) is a very useful method for investigating shallow geological structure and, in particular, the relative shear strength of subsurface materials. By incorporating density values for the local bedrock and overburden sediments it is possible

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Peat trench ready as part of a peat mapping survey using ground radar to provide high-resolution images of the deposit beneath discrete profiles or with a resistivity survey

Peat Mapping using Geophysics (Peat Surveys)

Mapping peat is a common requirement for proposed developments such as wind farms and pipeline routes where they cross remote and/or sensitive areas. There are several geophysical methods that can provide plan and cross-sectional information to map the distribution of

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Ground-Penetrating-Radar

Experienced Ground Radar (GPR) Company

TerraDat has been a GPR survey company since the technique evolved to a level where it could be applied to a wide range of applications over 20 years ago. Because the GPR method involves analysis of wave-form data, our experience

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Electrical Resistivity survey

Electrical Resistivity Tomography (ERT)

The Resistivity technique is useful for characterising the sub-surface materials in terms of their electrical properties. Variations in electrical resistivity (or conductivity) typically correlate with variations in lithology, water saturation, fluid conductivity, porosity and permeability, which may be used to

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Mapping Geology along Pipeline Routes

Geophysics for Mapping Geology along Pipeline Routes

Pipelines and cable routes present a set of unique developmental and geotechnical challenges. TerraDat has designed an integrated survey approach, providing data useful to all stages of the project design. Archaeological assessments and UXO detection: Due to the large distances

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