Controlling factors for the spatial variability of soil magnetic susceptibility across England and Wales

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dc.contributor.authorBlundell, A.-
dc.contributor.authorDearing, J. A.-
dc.contributor.authorBoyle, J. F.-
dc.contributor.authorHannam, Jacqueline A.-
dc.date.accessioned2012-05-31T23:02:24Z
dc.date.available2012-05-31T23:02:24Z
dc.date.issued2009-08-01T00:00:00Z-
dc.description.abstractWe review the nature and importance of soil factors implicated in the formation of secondary ferrimagnetic minerals in soils and palaeosols worldwide. The findings are examined with respect to temperate regions through a comprehensive analysis of over 5000 samples of surface soil from England and Wales taken from a 5 × 5 km grid. Over 30 soil and environmental attributes are considered for each sample as proxies for soil forming factors. Measurements of low field magnetic susceptibility (mass specific) and frequency dependent susceptibility (mass specific and percentage) on each sample provide estimates of the concentration and grain size of ferrimagnetic minerals. Maps of soil magnetism across England and Wales show non-random distributions and clusters. One subset of data is clearly linked to contamination from atmospheric pollution, and excluded from subsequent analyses. The concentration of ferrimagnetic minerals in the non-polluted set is broadly proportional to the concentration of minerals falling into the viscous superparamagnetic domain size range (~ 15–25 nm). This set shows clusters of high magnetic concentrations particularly over specific parent materials such as schists and slates, mudstones and limestonen_UK
dc.identifier.citationA. Blundell, J.A. Dearing, J.F. Boyle, J.A. Hannam, Controlling factors for the spatial variability of soil magnetic susceptibility across England and Wales, Earth-Science Reviews, Volume 95, Issues 3-4, August 2009, Pages 158-188-
dc.identifier.issn0012-8252-
dc.identifier.urihttp://dx.doi.org/10.1016/j.earscirev.2009.05.001-
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/3574
dc.language.isoen_UK-
dc.publisherElsevier Science B.V., Amsterdam.en_UK
dc.subjectsoil magnetismen_UK
dc.subjectmagnetic susceptibilityen_UK
dc.subjectfrequency-dependenceen_UK
dc.subjectsoil forming factorsen_UK
dc.subjectEngland and Walesen_UK
dc.titleControlling factors for the spatial variability of soil magnetic susceptibility across England and Walesen_UK
dc.typeArticle-

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