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Low-temperature magnetic properties of greigite (Fe3S4)
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SYSNO ASEP 0324023 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Low-temperature magnetic properties of greigite (Fe3S4) Title Nízkoteplotní magnetické vlastnosti greigitu Fe3S4 Author(s) Chang, L. (GB)
Roberts, A. P. (GB)
Rowan, Ch. J. (GB)
Tang, Y. (CN)
Pruner, Petr (GLU-S) RID, SAI, ORCID
Chen, Q. (CN)
Horng, C. S. (TW)Source Title Geochemistry, Geophysics, Geosystems. - : Wiley
Roč. 10, JAN 29 (2009), Q01Y04-Q01Y04Number of pages 14 s. Publication form www - www Language eng - English Country US - United States Keywords greigite ; domain state ; low-temperature magnetic properties ; marine-sediments ; rock magnetism ; paleomagnetism Subject RIV DE - Earth Magnetism, Geodesy, Geography CEZ AV0Z30130516 - GLU-S (2005-2011) UT WOS 000262981300002 EID SCOPUS 70349979743 DOI 10.1029/2008GC002276 Annotation We provide comprehensive low-temperature magnetic results for greigite (Fe3S4) across the spectrum from superparamagnetic (SP) to multidomain (MD) behavior. The low-temperature demagnetization is grain size dependent for PSD/MD greigite, with coarser grains undergoing larger remanence loss. AC susceptibility measurements indicate consistent blocking temperatures (TB) for all synthetic and natural greigite samples, which are probably associated with surficial oxidation. Low-temperature magnetic analysis provides much more information about magnetic mineralogy and domain state than room temperature measurements and enables discrimination of individual components within mixed magnetic mineral assemblages. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2009
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