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Formation of ultrafine-grained magnetite in soils.

Maher, Barbara A. and Taylor, Reginald M. (1988) Formation of ultrafine-grained magnetite in soils. Nature, 336 (6197). pp. 368-370. ISSN 0028-0836

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Abstract

The magnetic properties of certain soils indicate the widespread presence of ultrafine-grained magnetite, even where there is no detrital input of magnetite. This suggests that in situ formation of magnetite can occur under soil-forming conditions. Schwertmann and Taylor have stated, however, that magnetite has not been found as a newly formed mineral in soils. Here we report the recovery and identification of pure, ultrafine-grained magnetite from some UK soils that have no apparent external sources of magnetite. We consider this magnetite to be of inorganic, in situ origin. The identification of magnetite formation during soil development has significance for studies of iron in soils but also has wider environmental implications. Soil-derived magnetite may contribute to the natural remanent magnetism of sediments, and act as a specific indicator of erosional events.

Item Type: Article
Journal or Publication Title: Nature
Uncontrolled Keywords: magnetite ; environmental magnetism ; soil magnetite
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 355
Deposited By: Professor Barbara A Maher
Deposited On: 19 Jan 2007
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 17:52
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/355

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