Role of single-domain magnetic particles in creation of inverse magnetic fabrics in volcanic rocks: A mathematical model study

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10371687" target="_blank" >RIV/00216208:11310/17:10371687 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s11200-015-0675-6" target="_blank" >http://dx.doi.org/10.1007/s11200-015-0675-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11200-015-0675-6" target="_blank" >10.1007/s11200-015-0675-6</a>

Result language
angličtina
Original language name
Role of single-domain magnetic particles in creation of inverse magnetic fabrics in volcanic rocks: A mathematical model study
Original language description
The role of single-domain (SD) magnetic particles in creation of inverse magnetic fabrics is investigated on simple mathematical models using a realistic estimate for SD intrinsic susceptibility. In contrast to the fraction created by multi-domain (MD) particles, in which the anisotropy of magnetic susceptibility (AMS) is controlled by both the grain AMS and intensity of the preferred orientation of the particles, the AMS of the SD fraction is controlled solely by the intensity of the preferred orientation. The degree of AMS of ensemble of SD grains with a preferred orientation is therefore much higher than that of the same ensemble of MD particles implying the existence of frequent inverse magnetic fabrics. However, the occurrence of inverse magnetic fabrics due to SD particles is more the exception than the rule. Consequently, the amounts of SD particles is probably in general low. Nevertheless, the presence of SD particles in amounts insufficient to create inverse magnetic fabrics may diminish the whole rock AMS substantially. This can be one of the reasons for relatively low AMS in volcanic rocks whose magnetic particles may be really small obeying the conditions for the existence of SD particles.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10500 - Earth and related environmental sciences

Project
<a href="/en/project/GA15-18154S" target="_blank" >GA15-18154S: Anisotropy of non-linearly field-dependent magnetic susceptibility of rocks: Numerical modelling, experimental correlations, geological implications</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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