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


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).

Download

Full text not available from this repository.

Description/Abstract

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.

Item Type: Article
Related URLs:
Subjects: Q Science > QE Geology
Divisions: University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
ePrint ID: 20376
Date Deposited: 23 Feb 2006
Last Modified: 27 Mar 2014 18:10
URI: http://eprints.soton.ac.uk/id/eprint/20376

Actions (login required)

View Item View Item