Pyramid Geophysical Services

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Electrical Resistivity

Advanced Geosciences, Inc. Supersting R8 earth resistivity meter

Pyramid utilizes Electrical Resistivity Tomography (ERT) as a surface geophysical tool to provide information to our clients regarding geologic site conditions, hydrogeologic characteristics, and conductivity variability associated with environmental concerns. We utilize the Advanced Geosciences, Inc. (AGI) Supersting … [Read more...]

Filed Under: Services Tagged With: Advanced Geosciences Supersting R8, Electrical Resistivity Tomography, ERT, MER, Mulit-Electrode Resistivity, north carolina geophysics, north carolina resistivity

Seismic Services

Example of performing a Multi-Channel Analysis of Surface Waves (MASW) shear wave velocity data collection

Multi-Channel Analysis of Surface Waves (MASW) Pyramid staff have taken advantage of this relatively new technique in the recent past for the purposes of geologic mapping, identifying depth to rock, analyzing subsurface velocity and density profiles, and geotechnical investigations. We utilize the Geometrics Geode … [Read more...]

Filed Under: Services Tagged With: EM, MASW, MER, Multi-Channel Analysis of Surface Waves, Seismic Refraction

Geophysical Mapping of a Sinkhole

3D Model of Collapse Zone

In January 2015, Pyramid Geophysical Services conducted a geophysical investigation at an open sinkhole (ground collapse) in a dry retention pond for a client at their remediation site in Tennessee. The survey was conducted to determine the lateral and vertical extent of the sinkhole feature in the subsurface, and to … [Read more...]

Filed Under: Case Studies Tagged With: karst geophysics, MER, north carolina geophysics, resistivity, sinkhole, tennessee geophysics

Geophysical Mapping of Sand Unit Thickness

resistivity depth and thickness of geology

Pyramid Geophysical Services was contracted to perform an electrical resistivity geophysical mapping survey across 230 acres of undeveloped land in North Carolina. The purpose of the survey was to quantify the lateral extents and approximate depth/thicknesses of sandy soils near the ground surface. The client was … [Read more...]

Filed Under: Case Studies Tagged With: geophysical mapping, MER, resistivity, stratigraphy mapping

3D Modeling of Electrical Resistivity Data

Electrical resistivity (ER) testing is an effective geophysical method to identify subsurface geologic hazards, stratigraphic variability, karst features, and hydrogeologic conditions. A typical single ER test utilizes an array of electrodes placed in a straight line at a consistent spacing across a target area. This … [Read more...]

Filed Under: Case Studies Tagged With: 3D resistivity, electrical resistivity, ERT, karst, MER, sinkhole, three dimensional resistivity

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Certifications and Affiliations

GSA Contract

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AFFILIATED COMPANIES

LPT Systems

Provider of lubrication, pump and tank systems and equipment, sales and service

Pyramid Environmental Services

Pyramid Environmental is our Parent Company

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503 Industrial Avenue, Greensboro, NC 27406

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