Detection of the pedogenic magnetic fraction in volcanic soils developed on basalts using frequency-dependent magnetic susceptibility: comparison of two instruments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F17%3A00470216" target="_blank" >RIV/67985530:_____/17:00470216 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1093/gji/ggx037" target="_blank" >http://dx.doi.org/10.1093/gji/ggx037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/gji/ggx037" target="_blank" >10.1093/gji/ggx037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Detection of the pedogenic magnetic fraction in volcanic soils developed on basalts using frequency-dependent magnetic susceptibility: comparison of two instruments

Popis výsledku v původním jazyce

In studies of the magnetic properties of soils, the frequency-dependent magnetic susceptibility percentage (X-FD%) is often used for the identification of ultrafine magnetically superpara-magnetic/stable single-domain (SP/SSD) particles. This parameter is commonly used as an indicator for increased pedogenesis. In strongly magnetic soils, the SP/SSD magnetic signal ( mostly bio-pedogenic) may be masked by lithological signals, making pedogenesis hard to detect. In this study, we compare results for the detection of ultrafine SP/SSD magnetic particles in andic soils using two instruments: a Bartington MS2B dual-frequency meter and an AGICO Kappabridge MFK1-FA. In particular, the study focuses on the effect of pedogenesis by investigating the relationship between specific soil magnetic and chemical properties ( soil organic carbon and pH(H2O)). The values of X-FD% obtained with the MS2B varied from 2.4 to 5.9 per cent, and mass-specific magnetic susceptibility (X-LF) from 283 to 1688x10(-8) m(3) kg(-1), while values of X-FD% and X-LF obtained with the MFK1-FA varied from 2.7 to 8.2 per cent and from 299 to 1859 x 10(-8) m(3) kg(-1), respectively. Our results suggest that the detection of the SP/SSD magnetic fraction can be accomplished by comparing relative trends of X-FD% along the soil profile. Moreover, the discrimination between bio-pedogenic and lithogenic magnetic contributions in the SP/SSD fraction is possible by comparing the X-FD% and X-LF data determined in the fine earth (<2 mm) and the coarse fraction (4-10 mm) samples down the soil profile.

Název v anglickém jazyce

Detection of the pedogenic magnetic fraction in volcanic soils developed on basalts using frequency-dependent magnetic susceptibility: comparison of two instruments

Popis výsledku anglicky

In studies of the magnetic properties of soils, the frequency-dependent magnetic susceptibility percentage (X-FD%) is often used for the identification of ultrafine magnetically superpara-magnetic/stable single-domain (SP/SSD) particles. This parameter is commonly used as an indicator for increased pedogenesis. In strongly magnetic soils, the SP/SSD magnetic signal ( mostly bio-pedogenic) may be masked by lithological signals, making pedogenesis hard to detect. In this study, we compare results for the detection of ultrafine SP/SSD magnetic particles in andic soils using two instruments: a Bartington MS2B dual-frequency meter and an AGICO Kappabridge MFK1-FA. In particular, the study focuses on the effect of pedogenesis by investigating the relationship between specific soil magnetic and chemical properties ( soil organic carbon and pH(H2O)). The values of X-FD% obtained with the MS2B varied from 2.4 to 5.9 per cent, and mass-specific magnetic susceptibility (X-LF) from 283 to 1688x10(-8) m(3) kg(-1), while values of X-FD% and X-LF obtained with the MFK1-FA varied from 2.7 to 8.2 per cent and from 299 to 1859 x 10(-8) m(3) kg(-1), respectively. Our results suggest that the detection of the SP/SSD magnetic fraction can be accomplished by comparing relative trends of X-FD% along the soil profile. Moreover, the discrimination between bio-pedogenic and lithogenic magnetic contributions in the SP/SSD fraction is possible by comparing the X-FD% and X-LF data determined in the fine earth (<2 mm) and the coarse fraction (4-10 mm) samples down the soil profile.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Geophysical Journal International

ISSN

0956-540X

e-ISSN

—

Svazek periodika

209

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

654-660

Kód UT WoS článku

000402641600009

EID výsledku v databázi Scopus

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