Magnetic method

Abstract

Developments which have led to an enormous increase in the use of magnetic surveys during the past 50 years are reviewed here. The prime factor was the development of the airborne magnetometer. Its application quickly showed the value of magnetic maps as aids in geologic mapping and in determining basement structure. Developments have included new types of magnetometers with greater sensitivity, and magnetic gradiometers, combined with the use of digital recording and processing routines. The worldwide coverage available is stimulating the preparation of magnetic maps on a continental scale for tectonic studies.

Integrated geophysical investigation for lead and zinc mineralization in Wase, middle Benue Trough, Nigeria

“…Any substance that is sensitive to magnetization or includes some sort of iron oxide (such as a ferromagnetic substance) records the strength of the Earth’s magnetic field at the spot where the substance becomes magnetized Tarling and Hrouda (1993) , Sandgren and Snowball (2002) , Evans and Heller (2003) , Cullity & Graham, 2011 and Babker (2019) . Detailed principles of the ground magnetic survey can be found in ( Reford, 1980 ; Paterson and Reeves, 1985 ; Brodie, 2002 ).…”

Superconducting sensors and methods in geophysical applications

“…A variety of underlying physical effects or laws [3] exist which enable to build magnetometers. There exists a number of reviews which present the evolution of magnetometers from the early days [4,5], within the past two decades [6] up to more recent developments such as [7].…”

Geophysical Terranes of the Great Basin and Parts of Surrounding Provinces

“…Several excellent reviews of magnetic methods have been published by Grant (1985a,b), Reford (1980), Hinze and Zietz (1985), Blakely (1995), and Gunn and Dentith (1997). Similarly, Simpson and others (1986), Simpson and Jachens (1989), Jachens and others (1989), and Blakely (1995) provide informative reviews of gravity methods.…”