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...]
July 2020 Newsletter: Density Anomalies and Geophysics – Concepts and Methods
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...]
January 2020 Newsletter: More interesting information about bedrock fractures and how to analyze them
Groundwater hydrogeology can be a challenging subject, even when water flows through a fairly homogeneous medium of grains with interconnected flow paths, but when water moves down via gravity through various strata at some point it typically reaches a level beneath the earth where the rock is … [Read more...]
January 2019 Newsletter: Applying Applied Geophysics
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...]
February 2015 Newsletter: NC Trails and Geophysics for Sinkholes
NC Mountain to Sea Trail The North Carolina Mountains-to-Sea Trail (MST Trail) is a 1,150-mile hiking trail that stretches from the Great Smoky Mountains to the Outer Banks. The trail starts at Clingman's Dome (the highest point in Tennessee and the Great Smoky Mountains National Park), travels … [Read more...]
