GEOPHYSICAL CONSULTING

Our services are vast and include a large array of geophysical, environmental, and geological consulting skills.  Feel free to write questions@petralogix.com, or call 209-400-5729 if you would like to set up a meeting to see how we could help you and your team.

Surface Electrical Resistivity Surveying: "Surface electrical resistivity surveying is based on the principle that the distribution of electrical potential in the ground around a current-carrying electrode depends on the electrical properties of the surrounding soils and rocks." - epa.gov (Schlumberger, Wenner, Dipole, Spread Traverse, 2D Profiling, 3D Compilation, Transient (time variant), Down-hole. 

Seismic Method Geophysics: "Seismic methods are the most commonly conducted geophysical surveys for engineering investigations. Seismic refraction provides engineers and geologists with the most basic of geologic data via simple procedures with common equipment." - epa.gov (Refraction, Refraction Tomography, Reflection, High Resolution Reflection, Multi-Channel 360+ Shallow and Deep Reflection, Multi-Channel Analysis of Surface Wave, Refraction Micro-tremor, Shear-Wave Refraction and Reflection, Down-hole and Cross-hole Analysis).

Magnetic Method Geophysics: "Magnetic methods are generally used to map the location and size of ferrous objects. Determination of the applicability of the magnetics method should be done by an experienced geophysicist." - epa.gov (1D, 2D, & 3D Compilation and Profiling, Variant Modeling for Rock and Fault Evaluations, as well as standard Utility Locating)

EM Induction & Radar Geophysics: "Electromagentic conductivity surveys measure ground conductivity by the process of electromagnetic induction." - epa.gov (Transect and GPS Surveys in Combination with Standard GPR and EM equipment for Utility and Buried Object Locating, Variant Modeling for Rock and Seepage, as well as Debris).

Gravity Method Geophysics: "By very precise measurement of gravity and by careful correction for variations in the larger component due to the whole Earth, a gravity survey can sometimes detect natural or man-made voids, variations in the depth to bedrock, and geologic structures of engineering interest." - epa.gov (Multi-correction type surveys available for larger projects such as Oil and Gas, Water and Mining, and Deeper Buried Structures)

Geo-Statistical Analysis - We provide in house analysis of results using a variety of geo-modeling algorithms to help achieve a best or "most likely" case scenario for site conditions and project constraint evaluation.  In combination with our expert geological review, we can help to answer the questions you and your engineering/design team may have.