Provides highway engineers with a basic knowledge of geophysics and nondestructive test (NDT) methods for solving specific engineering problems during geotechnical site investigation, construction, and maintenance of highways.
Common geophysical methods used by the Environmental Protection Agency at hazardous waste sites include: ground penetrating radar, seismic refraction, electromagnetics, and magnetometry. Presents case studies and field-based analytical methods.
A detailed non-mathematical introduction to the research on the Earth's magnetic environment in space and its history. Contains master directory of many related text files.
Research discussing some of the advantages and disadvantages of using genetic algorithms for joint inversion of different geophysical datasets, particularly magnetotellurics and seismic receiver functions.
Manual describing the geophysical procedures commonly conducted by the Army Corps of Engineers, used for engineering, geological and environmental investigations.
Research institute in New Zealand specializing in earth systems, seismic data acquisition and processing, laboratory analysis, environmental and natural hazards risk analysis.
Historical review of geomagnetism, from the discovery of the compass to plate tectonics and space observations. Also has instructions for teachers, glossary, and FAQ.
Contains resources of the Geological Survey of Canada on the ever-changing magnetic field. Includes a magnetic declination calculator and compass tutorial, and a database from Canadian magnetic observatories.
A geophysical technique that uses naturally-occurring (or man-made) electromagnetic fields to probe the electrical conductivity structure of the Earth.
Magnetotellurics (MT) is a geophysical method to study the distribution of electrical conductivity in the earth. Article includes examples of recordings and resistivity ranges of standard rock types.
A detailed article explaining the practical application of magnetotellurics. Includes case studies to present processing and interpretation techniques.