Numerical simulation of inclination shallowing by rolling and slipping of spherical particles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F12%3A10129730" target="_blank" >RIV/00216208:11310/12:10129730 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cageo.2012.06.013" target="_blank" >http://dx.doi.org/10.1016/j.cageo.2012.06.013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cageo.2012.06.013" target="_blank" >10.1016/j.cageo.2012.06.013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical simulation of inclination shallowing by rolling and slipping of spherical particles

Popis výsledku v původním jazyce

We report algorithms for two- and three-dimensional numerical simulations of settling spherical magnetic particles with prescribed size-distributions. Particles roll, or roll and slip, on the substrate, which causes their magnetic moments to rotate. These models are applied to the problem of inclination shallowing, which is repeatedly encountered in paleomagnetic studies of sedimentary rocks, where the recorded inclination is less than the expected field inclination. Simulations of equal-sized assemblages of magnetic spheres yield shallowing factors of 0.6, similar to that found in nature and in laboratory redeposition experiments. Comparable results are obtained when varying the size distributions of the spheres. Inclination shallowing is more pronounced when the smaller particles are magnetic and the larger ones are non-magnetic. Our study shows that rolling and/or slip (translation) of spherical particles can significantly contribute to inclination shallowing.

Název v anglickém jazyce

Numerical simulation of inclination shallowing by rolling and slipping of spherical particles

Popis výsledku anglicky

We report algorithms for two- and three-dimensional numerical simulations of settling spherical magnetic particles with prescribed size-distributions. Particles roll, or roll and slip, on the substrate, which causes their magnetic moments to rotate. These models are applied to the problem of inclination shallowing, which is repeatedly encountered in paleomagnetic studies of sedimentary rocks, where the recorded inclination is less than the expected field inclination. Simulations of equal-sized assemblages of magnetic spheres yield shallowing factors of 0.6, similar to that found in nature and in laboratory redeposition experiments. Comparable results are obtained when varying the size distributions of the spheres. Inclination shallowing is more pronounced when the smaller particles are magnetic and the larger ones are non-magnetic. Our study shows that rolling and/or slip (translation) of spherical particles can significantly contribute to inclination shallowing.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

<a href="/cs/project/GC205%2F09%2FJ028" target="_blank" >GC205/09/J028: Studium vzniku remanentní magnetizace v sedimentech prostřednictvím kombinovaného experimentálního a numerického přístupu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Computers and Geosciences

ISSN

0098-3004

e-ISSN

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Svazek periodika

49

Číslo periodika v rámci svazku

Neuvedeno

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

270-277

Kód UT WoS článku

000311656300030

EID výsledku v databázi Scopus

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