Publication Date:
2017-04-04
Description:
Pioneering works on the magnetic anisotropy of rocks
were carried out during the 1940s and 1950s (Ising,
1942; Graham, 1954). These authors first realized that
magnetic methods may be used to characterize the preferred
orientation of minerals within the rock samples.
Ising studied varved clays in Sweden and noticed that
the magnetic susceptibility was higher on the bedding
plane than orthogonally to it. Graham recognized that
the anisotropy of magnetic susceptibility (AMS) may be
regarded as a petrofabric element; he later extended the
analysis to various sedimentary rocks of the Appalachian
Mountains and pointed out the existence of distinct and
systematic relationships of the magnetic properties with
structural setting (Graham, 1966). The studies progressively
developed in the following decades and a first comprehensive
review on magnetic anisotropy and its
application in geology and geophysics was published by
Hrouda (1982). Over the past 20–30 years, researches on
magnetic anisotropy gained widespread use and were
extended to examine the fabric in a variety of sedimentary,
igneous, and metamorphic rocks (e.g., see reviews by
Jackson, 1991; Jackson and Tauxe, 1991; Rochette et al.,
1992; Tarling and Hrouda, 1993; Borradaile and Henry,
1997; Borradaile, 2001; Borradaile and Jackson, 2004;
Tauxe, 2005; Lanza and Meloni, 2006; Hrouda, 2007).
Presently, the study of the magnetic anisotropy of rocks
is still one of the most promising research issues in the
field of rock magnetism.
Description:
Published
Description:
717-729
Description:
2.2. Laboratorio di paleomagnetismo
Description:
reserved
Keywords:
Magnetic Anisotropy
;
04. Solid Earth::04.05. Geomagnetism::04.05.07. Rock magnetism
;
04. Solid Earth::04.05. Geomagnetism::04.05.08. Instruments and techniques
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
book chapter
