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You are here: Home / Archives for Geophysics

October 2020 Newsletter:
Supplemental Tools for Geophysics – How We Present the Results

In past newsletters we have provided a variety of geophysical case study examples that Pyramid has completed over the years. These projects have showcased methods such as electrical resistivity, seismic testing, electromagnetics and ground penetrating radar that were used to investigate the … [Read more...]

Filed Under: Newsletter Archive Tagged With: 3D geophysics, Electrical Resistivity, electromagnetics, EM31, EM61, Geophysics, GPR, ground penetrating radar, seismic

July 2020 Newsletter:
Density Anomalies and Geophysics – Concepts and Methods

ERT transect with karst

In general, the density of the earth increases with depth, from a lighter silicic crust (or basalt in the oceans) to a sequence of denser, more metallic rocks from the mantle to the inner core. This is what we expect when digging or drilling into the earth. But occasionally we are surprised by the … [Read more...]

Filed Under: Newsletter Archive Tagged With: drilling hazard, Electrical Resistivity, Geophysics, GPR, ground penetrating radar, karst, MASW, oil field hazard, seismic, sinkhole, top of rock

October 2019 Newsletter:
Seismic Geophysical Surveys to Examine Bedrock Depth and Integrity

MASW Cross Section

The Triassic Basin soil and rock formations in the Durham, North Carolina, region provide challenges for geotechnical design and construction. These formations consist of highly heterogenous stratigraphy including sands, silts and clays overlying a weathered rock unit that can contain boulders, … [Read more...]

Filed Under: Newsletter Archive Tagged With: Geophysics, MASW, north carolina geophysics, seismic, shear wave, top of rock

January 2019 Newsletter:
Applying Applied Geophysics

seismic geophysical survey

The geophysical technologies we use for our typical projects are part of a vast spectrum of physical wave energy technologies used in a wide swath of applications. Our techniques and expertise are concentrated on the types of technologies that work best in the dirty, wet, dense and occasionally … [Read more...]

Filed Under: Newsletter Archive Tagged With: Electrical Resistivity, Geophysics, seismic

December 2017 Newsletter:
Approaches to Environmental Assessments

groundwater pollution

As environmental consultants, we are tasked with formulating an environmental assessment plan that will answer as many questions as possible, as thoroughly as possible, for the least amount of cost and effort. Size of the land (acreage), buildings and improvements, history, location and topography … [Read more...]

Filed Under: Newsletter Archive Tagged With: environmental assessment, ESA, Geophysics, Phase I, Phase II

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Recent Articles

  • October 2020 Newsletter:
    Supplemental Tools for Geophysics – How We Present the Results
  • July 2020 Newsletter:
    Density Anomalies and Geophysics – Concepts and Methods
  • January 2020 Newsletter:
    More interesting information about bedrock fractures and how to analyze them
  • October 2019 Newsletter:
    Seismic Geophysical Surveys to Examine Bedrock Depth and Integrity
  • June 2019 Newsletter:
    How the Roads that lead to Rome were made

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

Pyramid Geophysical Services

A subsidiary of Pyramid Environmental, Pyramid Geophysical specializes in subterranean/subsurface metrics and monitoring through a variety of technologies

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