The University of Southampton
University of Southampton Institutional Repository

Metals in the sediments of Ensenada de San Simón (inner Ría de Vigo), Galicia, NW Spain

Metals in the sediments of Ensenada de San Simón (inner Ría de Vigo), Galicia, NW Spain
Metals in the sediments of Ensenada de San Simón (inner Ría de Vigo), Galicia, NW Spain
coast, NW Spain. The geochemistry of its surface sediments, and the river sediments which drain into it from a granitic and metamorphic hinterland, are described. Multivariate statistical analysis of the sediment compositions (using ridge regression and mixture-modelling) enabled the major- and trace-element distributions to be accounted for in terms of both natural and anthropogenic sources: Between 60 and 80% of the Cr, Cu, Ni, Pb and Zn concentrations of the bottom sediments of the Ensenada can be explained by sediment input from the combined R. Oitaben and R. Verdugo, the R. Redondela and faecal matter from mussel rafts, but there is additional enrichment towards the mouth of the Ensenada. This enrichment is attributed to marine water entering the Ensenada from the polluted industrial areas of the adjacent Ría de Vigo. It is suggested that these metals are carried landwards in solution by the tidal incursion of marine water (the volume of which, on an annual basis, greatly exceeds that contributed by the rivers). Although the incoming marine waters may also be important in supplying Pb to the outer Ensenada, this element may also be delivered by land run-off, or by windborne vehicular emissions to the Ensenada as a result of the surrounding network of roads and a road bridge over the Estrecho de Rande.
0883-2927
973-996
Evans, Graham
91b97921-cf93-44fc-9f0d-d70b31a9d20d
Howarth, Richard J.
a16a37e7-2de8-4be7-aa34-495b6fad0300
Nombela, M.A.
c82b78b2-5844-4ee6-83d7-eb2a97493f57
Evans, Graham
91b97921-cf93-44fc-9f0d-d70b31a9d20d
Howarth, Richard J.
a16a37e7-2de8-4be7-aa34-495b6fad0300
Nombela, M.A.
c82b78b2-5844-4ee6-83d7-eb2a97493f57

Evans, Graham, Howarth, Richard J. and Nombela, M.A. (2003) Metals in the sediments of Ensenada de San Simón (inner Ría de Vigo), Galicia, NW Spain. Applied Geochemistry, 18 (7), 973-996. (doi:10.1016/S0883-2927(02)00203-2).

Record type: Article

Abstract

coast, NW Spain. The geochemistry of its surface sediments, and the river sediments which drain into it from a granitic and metamorphic hinterland, are described. Multivariate statistical analysis of the sediment compositions (using ridge regression and mixture-modelling) enabled the major- and trace-element distributions to be accounted for in terms of both natural and anthropogenic sources: Between 60 and 80% of the Cr, Cu, Ni, Pb and Zn concentrations of the bottom sediments of the Ensenada can be explained by sediment input from the combined R. Oitaben and R. Verdugo, the R. Redondela and faecal matter from mussel rafts, but there is additional enrichment towards the mouth of the Ensenada. This enrichment is attributed to marine water entering the Ensenada from the polluted industrial areas of the adjacent Ría de Vigo. It is suggested that these metals are carried landwards in solution by the tidal incursion of marine water (the volume of which, on an annual basis, greatly exceeds that contributed by the rivers). Although the incoming marine waters may also be important in supplying Pb to the outer Ensenada, this element may also be delivered by land run-off, or by windborne vehicular emissions to the Ensenada as a result of the surrounding network of roads and a road bridge over the Estrecho de Rande.

This record has no associated files available for download.

More information

Published date: July 2003

Identifiers

Local EPrints ID: 180277
URI: http://eprints.soton.ac.uk/id/eprint/180277
ISSN: 0883-2927
PURE UUID: 719fdae4-c99a-4706-8d54-173d1d30709e

Catalogue record

Date deposited: 06 Apr 2011 10:27
Last modified: 14 Mar 2024 02:52

Export record

Altmetrics

Contributors

Author: Graham Evans
Author: Richard J. Howarth
Author: M.A. Nombela

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×