Influences on the extent and record of heavy metal pollution in sediment cores from Loch Tay in a mineralised area of Scotland

The distribution and Inventories of Pb in the sediments of Loch Tay have been strongly influenced by inputs from past Pb mining activity, as demonstrated by correlation with the characteristic 206Pb/ 207Ph signature of the Tyndrum ore deposit. A major depositional event, perhaps associated with the...

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Bibliographic Details
Published in:Journal of geochemical exploration 1997-04, Vol.58 (2), p.195-202
Main Authors: Farmer, J.G., MacKenzie, A.B., Eades, L.J., Kirika, A., Bailey-Watts, A.E.
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Exact sciences and technology
heavy metals
Isotope geochemistry
Isotope geochemistry. Geochronology
lake sediments
Loch Tay Scotland
pollution
Pollution, environment geology
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Summary:The distribution and Inventories of Pb in the sediments of Loch Tay have been strongly influenced by inputs from past Pb mining activity, as demonstrated by correlation with the characteristic 206Pb/ 207Ph signature of the Tyndrum ore deposit. A major depositional event, perhaps associated with the cessation of Pb mining in the area, has been dated at 1906–1928 by the 210Pb method. Zinc and Cu have been influenced to a lesser extent by mining, as shown by comparison with inventories in Loch Lomond. Profiles of As, Mn and Fe have been affected by post-depositional diagenetic remobilisation processes. The results serve as a benchmark, with Au mining set to commence at Cononish, near Tyndrum, in 1996.
ISSN:0375-6742
1879-1689
DOI:10.1016/S0375-6742(96)00060-X