Anisotropy of out-of-phase magnetic susceptibility in titanomagnetite-bearing rocks due to weak field hysteresis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F23%3A00574255" target="_blank" >RIV/67985831:_____/23:00574255 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/23:10473906

Result on the web

<a href="https://link.springer.com/article/10.1007/s11200-023-0603-0" target="_blank" >https://link.springer.com/article/10.1007/s11200-023-0603-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11200-023-0603-0" target="_blank" >10.1007/s11200-023-0603-0</a>

Result language

angličtina

Original language name

Anisotropy of out-of-phase magnetic susceptibility in titanomagnetite-bearing rocks due to weak field hysteresis

Original language description

Properties of the out-of-phase susceptibility (opMS) of rocks and artificial specimens whose opMS is due to weak-field hysteresis, containing magnetite and titanomagnetite, were investigated and theoretical relation between degrees of the in-phase susceptibility (ipMS) and opAMS was confirmed experimentally. Pure magnetite shows virtually no field dependence of ipMS and zero opMS in fields less than 500 A m-1. In low-Ti titanomagnetite, the intensity of the ipMS variation is very low, hardly reaching 1% of the initial value. In high-Ti titanomagnetite, the intensity of ipMS variation is relatively strong reaching 50% of the initial value and that of opMS variation is even much stronger reaching multiples of the initial value. The anisotropy of ipMS (ipAMS) of artificial specimens consisting of disseminated magnetite powder in plaster of Paris is well defined, while the opAMS is virtually undetectable. In titanomagnetite-bearing volcanic and dyke rocks, the ipAMS evidently reflects the character of lava flow. The opAMS ellipsoids resemble the ipAMS ellipsoids, the degree of opAMS being significantly higher than that of ipAMS. The principal directions of ipAMS and opAMS are related closely in specimens with high-Ti titanomagnetites and only poorly in specimens with low-Ti titanomagnetites. In specimens with high-Ti titanomagnetites, there is a linear relation and very strong correlation (R2 = 0.95) between the degree of opAMS and the square of the degree of ipAMS corresponding to the theoretical relation between these degrees.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10505 - Geology

Project

<a href="/en/project/GA19-17442S" target="_blank" >GA19-17442S: Anisotropy of out-of-phase magnetic susceptibility as a new method for fabric analysis of rocks</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Studia geophysica et geodaetica

ISSN

0039-3169

e-ISSN

1573-1626

Volume of the periodical

67

Issue of the periodical within the volume

3-4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

18

Pages from-to

143-160

UT code for WoS article

001042001900001

EID of the result in the Scopus database

2-s2.0-85166537396