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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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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

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OECD FORD branch

10508 - Physical geography

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Geophysical Journal International

ISSN

0956-540X

e-ISSN

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Volume of the periodical

209

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

654-660

UT code for WoS article

000402641600009

EID of the result in the Scopus database

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