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Fingerprinting windblown dust in south-eastern Australian soils by uranium-lead dating of detrital zircon

Gatehouse, Robyn; Williams, Ian; Pillans, Bradley

Description

The U-Pb ages of fine-grained zircon separated from 2 dust-dominated soils in the eastern highlands of south-eastern Australia and measured by ion microprobe (SHRIMP) revealed a characteristic age 'fingerprint' from which the source of the dust has been determined and by which it will be possible to assess the contribution of dust to other soil profiles. The 2 soils are dominated by zircon 400-600 and 1000-1200 Ma old, derived from Palaeozoic granites and sediments of the Lachlan Fold Belt, but...[Show more]

CollectionsANU Research Publications
Date published: 2001
Type: Journal article
URI: http://hdl.handle.net/1885/93325
Source: Australian Journal of Soil Research
DOI: 10.1071/SR99078

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