Magnetizations in Rocks and Minerals. [in:] Schubert G. & Kono M. (eds), Treatise on Geophysics. Vol. 5, Geomagnetism, Academic Press Elsevier Science, 278-331.Dunlop, D. J., and O. Ozdemir (2007), Magnetizations in rocks and minerals, in Treatise on Geophysics, vol. 5, Geo...
in cobble samples through scanning electron microscope and microprobe analyses, conduct an inter-laboratory paleomagnetic study to evaluate sensitivities required to evaluate the weak magnetizations carried by the Jack Hills sediments, and assess provenance information constrained by the opaque minerals. These...
Changing the stress from 350 to 2,650 psi caused a marked decrease in magnetic intensity of rocks containing magnetite or ilmenomagnetite, and a slight increase when the magnetic minerals are in the system FeTiO3-Fe2O3. Directions of magnetization also changed, in a non-systematic manner. ...
single-domain particles/ A9160P Magnetic and electric properties of rocks, minerals and soilCharacteristics of various types of partial anhysteretic remanent magnetization generated in samples rotating about a single axis, which was always parallel to the steady field, are investigated and compared with...
In a vast number of meteorites, magnetization is acquired by minerals that form when the rock undergoes alteration during contact with fluids. However, as of today, the relationship between such magnetization measured in the laboratory and the intensity of the ancient field that imparted it is ...
The red granite contains abundant secondary hematite which occurs in fractures, and along cleavage and exsolution planes in alkali feldspars. The Fe in the hematite appears to be sourced from the oxidation alteration of magnetite and ilmenite and the breakdown of mafic minerals. The Permian CRM in...
Magnetizations in Rocks and Minerals. [in:] Schubert G. & Kono M. (eds), Treatise on Geophysics. Vol. 5, Geomagnetism, Academic Press Elsevier Science, 278-331.Dunlop D, Ozdemir O (2007) Magnetizations in rocks and minerals. In: Kono M (ed) Treatise on geophysics, vol 5. Elsevier,...
palaeointensity estimation/ A9160P Magnetic and electric properties of rocks, minerals and soilCrystallization magnetization (KRM) of magnetite is experimentally studied by the oxidation of fine grains of pyrite and by the oxidation (unmixing) of titanomagnetite with T c = 150–200°C at the ...
natural remanent magnetisation/ A9125N Palaeomagnetism A9160P Magnetic and electric properties of rocks, minerals and soilWe document three cases of observed Quaternary or much older secondary magnetizations in red beds. A better than usual knowledge about past and present temperature conditions enables...
Partial dissolution of rock under tectonic compression leads to the liberation and subsequent accumulation of insoluble minerals in cleavage planes. Magnetic grains are part of the relatively insoluble residue, and they reorient in the presence of the ambient field after they are freed during ...