Quantifying the rate and depth dependence of bioturbation based on optically-stimulated luminescence (OSL) dates and meteoric 10Be

Prof Nigel Spooner

Prof Nigel Spooner

We have studied “bioturbation” (mixing by animals, plants and insects) of a soil from northeast Queensland using “Optical Dating”, a technique that measures how long ago individual grains of soil were last exposed to sunlight. We show for the first time how mixing rate and depth are related in a bioturbated soil, which is important because these both much affect soil fertility.

Authors: Johnson, MO, Mudd, SM, Pillans, B, Spooner, NA, Keith Fifield, L., Kirkby, MJ, Gloor, M

Image Fig1_map.png

Work done in collaboration with ANU, University of Leeds, University of Edinburgh

Earth Surface Processes and Landforms 39 (9) 1188–1196 (2014)



Posted on July 16, 2014, in IPASnews, Paper Summaries and tagged , , , , , . Bookmark the permalink. Leave a comment.

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