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Magnetic enhancement is linked to and precedes hematite formation in aerobic soil

Record type: Article

Soil formation usually increases magnetic susceptibility, most often by increasing the concentrations of magnetite and maghemite, which are two ferrimagnetic iron oxides. Here we provide evidence that magnetic enhancement in aerobic soils not affected by detrital magnetic inputs or thermal transformation of other iron oxides is mostly due to the formation of maghemite, which is later transformed into hematite—the iron oxide that gives red color to soil. We show that the maghemite/hematite ratio is influenced by the particular environment and the degree of soil development, so it constitutes an effective tool for paleoenvironmental and planetary studies.

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Citation

Torrent, J., Barron, V. and Liu, Q-S. (2006) Magnetic enhancement is linked to and precedes hematite formation in aerobic soil Geophysical Research Letters, 33, (2), L02401. (doi:10.1029/2005GL024818).

More information

Published date: 2006
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 20376
URI: http://eprints.soton.ac.uk/id/eprint/20376
ISSN: 0094-8276
PURE UUID: ff0af4b8-d8db-4422-bff4-7f6d0f91817c

Catalogue record

Date deposited: 23 Feb 2006
Last modified: 17 Jul 2017 16:28

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Contributors

Author: J. Torrent
Author: V. Barron
Author: Q-S. Liu

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