Geophysical survey (archaeology)

March 17, 2019 admin 0

In archaeology, geophysical survey is ground-based physical sensing techniques used for archaeological imaging or mapping. Remote sensing and marine surveys are also used in archaeology, […]

clay

Clay and till- velocity/porosity

February 27, 2019 admin 1

Clay and till have low hydraulic conductivities. Their hydrogeological importance is that clay or till layers form hydraulic boundaries dividing aquifers.Till is a mixture of […]

Ground-penetrating radar

February 6, 2019 admin 1

Ground-penetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface. This nondestructive method uses electromagnetic radiation in the microwave band […]

Shallow seismic reflection

January 18, 2019 admin 1

GeneralThe shallow seismic reflection method is a seismic method that delineates subsurface structures using seismic waves reflected back to the ground surface from geological boundaries […]

Mine landslide triggered quakes

January 4, 2019 admin 1

Last year’s gigantic landslide at a Utah copper mine probably was the biggest nonvolcanic slide in North America’s modern history, and included two rock avalanches […]

What Is an Earthquake?

November 26, 2018 admin 0

Figure 1 – Earthquakes hypocenter and epicenter The hypocenter is the zone at depth where the initial displacement occurs. The epicenter is the surface location […]

Geophysical Surveys

Geophysical Surveys

October 6, 2018 admin 7

The techniques of geophysical exploration involve the remote sensing of some physical property of the ground using instruments, which in most cases remain on the […]