Relationship between magnetic susceptibility and elemental composition of Guano from Solek Cave, West Sumatera

Putra, R., Rifai, H., and Wurster, C.M. (2019) Relationship between magnetic susceptibility and elemental composition of Guano from Solek Cave, West Sumatera. Journal of Physics: Conference Series, 1185 (1). 012011.

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We measured the magnetic properties and geochemistry of guano on a vertical profile from Solek Cave in West Sumatera. The aim of study was to evaluate whether there was a relation between magnetic susceptibility and the elemental composition of guano. Samples were collected at depth every 5 cm a depth of 230 cm where bedrock was reached. Magnetic susceptibility was measured by using susceptibility meter type Bartington MS2B and the element composition of guano samples was measured by X-Ray Fluoroscence (XRF). Percentage frequency dependence magnetic susceptibility was calculated from the percentage ratio of χ lf - χ hf. The results showed that the magnetic susceptibility varied between 86.8 × 10-8 m3/kg to 2204.2 x 10-8 m3/kg. The results of the frequency dependence magnetic susceptibility indicates that the samples were dominated by multi domain magnetic grains. Additionally, guano samples were found to contain several elements such as Mg, Al, Si, Ca, K, P, Fe and Ti. In We find that there is weak correlation between magnetic susceptibility and elemental composition, particularly Fe and Ti. It indirectly shows the presence of authigenic minerals.

Item ID: 61827
Item Type: Article (Research - C1)
ISSN: 1742-6596
Copyright Information: © 2019 Published under licence by IOP Publishing Ltd. Content from this work may be used under the terms of theCreative Commons Attribution 3.0 licence. Any further distributionof this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.Published under licence by IOP Publishing Ltd
Date Deposited: 02 Jun 2020 02:47
FoR Codes: 51 PHYSICAL SCIENCES > 5104 Condensed matter physics > 510404 Electronic and magnetic properties of condensed matter; superconductivity @ 100%
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