An examination of the relevant physical characteristics of an area to assist in the geological interpretation by means of remote sensing. The results are generally presented in the form of maps and sections.
A method used to determine the physical parameters of rock formations for the purpose of detecting a potential metallic source. Common properties measured include magnetism, specific gravity and electrical conductivity.
A low impact method of locating archaeological features in the landscape. Generally, a machine capable of "looking" under the soil surface is utilized. Such machines include ground penetrating radar, fluxgate gradiometers and soil resistivity meters.
An exploration method that measures magnetic, electrical or other physical characteristics of the earth, the results of which can be interpreted and used to predict the occurrence of economic mineral concentrations beneath the surface of the earth.
The exploration of an area in which geophysical properties and relationships unique to the area are mapped by one or more geophysical methods. Geophysical techniques are helpful in diamond exploration because kimberlites often have characteristic geophysical signatures that are unique or distinctive when compared to those of the surrounding host rocks.
Searching and mapping the subsurface structure of the earth's crust using geophysical methods (e.g. seismic) to locate probable reservoir structures capable of producing commercial quantities of natural gas and/or crude oil.
This term relates to a suite of archaeological techniques used to remotely detect sites without need for excavation. These techniques include geomagnetic survey and resistivity survey.
the exploration of an area in which physical properties relating to geology are used. Geophysical methods include seismic, magnetic, electromagnetic and gravity.
The exploration of an area by exploiting differences in the physical properties of different rock types. Geophysical methods include seismic, magnetic, gravity, induced polarization and other techniques, and geophysical surveys can be undertaken from the ground or from the air.
A method of seeing beneath the ground surface using a number of methodologies, including Ground Penetrating Radar (GPR), Resistivity and Magnetometry. It takes a specialist to both uses the field equipment and interpret the data. When used with Topographic survey the results can be very effective, though it is very dependent on soil and geological conditions within the site area.
Geophysical survey measures the properties of the earth, for example magnetism, to find underground structures and features. Types of geophysical survey include resistivity survey and magnetometry.
Indirect methods of investigating the subsurface geology using the applications of physics including electric, gravimetric, magnetic, electromagnetic, seismic, and radiometric principles.
A scientific method of prospecting that measures the physical properties of rock formations. Common properties investigated include magnetism, specific gravity, electrical conductivity and radioactivity.
Geophysical survey refers to the systematic collection of geophysical data for spatial studies. Geophysical surveys may use a great variety of sensing instruments, and data may be collected from above or below the Earth's surface or from aerial or marine platforms. Geophysical surveys have many applications in exploration geology, archaeology, and engineering.