N. Breward

British Geological Survey

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P. R. Simpson

Faringdon Day Hospital

T.R. Lister

British Geological Survey

Dee Flight

British Geological Survey

P. Stone

British Geological Survey

E. Louise Ander

British Geological Survey

W.M. Edmunds

British Geological Survey

G.E.M. Hall

Natural Resources Canada

J.M. Cook

British Geological Survey

Thomas M. Williams

Clemson University

R. J. Merriman

British Geological Survey

Cooperative Institutions

British Geological Survey

University of Nottingham

Natural Environment Research Council

Gemalto (Israel)

Imperial College London

Institute of Geological Sciences

Geological Society of London

Loughborough University

University of Leicester

Federal Institute for Geosciences and Natural Resources

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Urban geochemistry: research strategies to assist risk assessment and remediation of brownfield sites in urban areas

Environmental Geochemistry and Health (2008)

I. Thornton M.E. Farago Catherine Rosalie Thums Randall R. Parrish Rona A. R. McGill

Brownfield

Contaminated land

10.1007/s10653-008-9182-9

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Citations (63)

GSUE: urban geochemical mapping in Great Britain

Geochemistry Exploration Environment Analysis (2005)

F.M. Fordyce S.E. Brown E. Louise Ander Barry G. Rawlins K.E. O'Donnell

The British Geological Survey is responsible for the national strategic geochemical survey of Great Britain. As part of this programme, the Geochemical Surveys of Urban Environments (GSUE) project was initiated in 1992 and to date, 21 cities have been mapped. Urban sampling is based upon the collection of top (0.05 to 0.20 m) and deeper (0.35 to 0.50 m) soil samples on a 500 m grid across the built environment (one sample per 0.25 km 2 ). Samples are analysed for c. 46 total element concentrations by X-ray fluorescence spectrometry, pH and loss on ignition as an indicator of organic matter content. The data provide an overview of the urban geochemical signature and because they are collected as part of a national baseline programme, can be readily compared with soils in the rural hinterland to assess the extent of urban contamination. The data are of direct relevance to current UK land use planning, urban regeneration and contaminated land legislative regimes. An overview of the project and applications of the data to human health risk assessment, water quality protection and contaminant source identification are presented.

10.1144/1467-7873/05-069

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Citations (77)

Abstract: Regional geochemical maps for uranium in surface drainage systems in Northern Britain: Environmental and economic implications

Environmental Geochemistry and Health (1991)

P. R. Simpson W.M. Edmunds N. Breward Dee Flight P. Green

Uranium mining

Acid Mine Drainage

Uranium ore

10.1007/bf01758546

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Citations (0)

Comparison of alternative extraction methods for determining particulate metal fractionation in carbonate-rich Mediterranean soils

Applied Geochemistry (1996)

N. Breward Martin Williams D.R. Bradley

10.1016/0883-2927(95)00078-x

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Citations (11)

Mineralogical controls on metal distribution in stream sediment derived from the Caledonides of the Scottish Southern Uplands and English Lake District

Mineralogical Magazine (2003)

P. Stone N. Breward R. J. Merriman

Stream sediment geochemistry provides an innovative method of assessing the basinal history of the Caledonian slate belts. Despite glaciation, the stream sediment geochemical patterns spatially mimic the outcrop of underlying bedrock lithologies. However, erosion from rock to sediment by fluvial processes may either increase or reduce an element’s abundance depending on the nature of its mineral host. An element held in heavy, resistate minerals will be concentrated, whereas one residing in unstable ferromagnesian minerals, which readily break down to clays during weathering, may be preferentially removed. Examples are provided from the Cr-Ni-V-Mg, base metal and Rb-Sr element suites. Primary and secondary bedrock patterns are recognized in the stream sediments. Primary patterns follow the original composition of the source bedrock, with steep gradients in the element distribution coinciding with lithostratigraphical boundaries. Such patterns also reveal subtle divisions within the established geological units for which the main compositional control was the nature of the ancient sedimentary provenance. Secondary patterns reflect remobilization of elements within the bedrock and so may cut across lithostratigraphical boundaries. These patterns (or their absence) are influenced by the thermal histories of the Caledonian basins, and so are indicative of the geotectonic regime in which the sedimentary sequences were originally deposited.

Bedrock

Outcrop

Lithology

Heavy mineral

10.1180/0026461036720101

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Citations (12)

Regional geochemical comparisons from the Lower Palaeozoic, Southern Uplands–Down-Longford terrane in Northern Ireland and Scotland

Scottish Journal of Geology (2011)

N. Breward P. Stone D.M.A. Flight T. B. Anderson

Synopsis Newly-acquired regional geochemical data for the Down-Armagh (Northern Ireland) sector of the Southern Uplands–Down-Longford terrane are assessed by comparison with the equivalent dataset for southern Scotland. Despite the much thicker glacigenic cover to the Down-Armagh bedrock, the principal geochemical lineaments identified in the Southern Uplands are still apparent. Patterns of element distribution emphasize the continuity of structure and stratigraphy between the two regions, with Cr, Zr, Sr, Rb, Ba and Ca (as CaO) proving particularly instructive. Much of the Down-Armagh outcrop consists of Llandovery strata from the Gala and Hawick Groups, so it is this part of the terrane that is most closely considered. Though continuity is clear, there is a suggestion of additional structural imbrication in Down-Armagh, whilst variability in the defining element ratios suggests along-strike compositional changes in the turbidite sandstones. These changes may be controlled by lithostratigraphical variation in sedimentary provenance, or may be influenced by the dominant palaeocurrent flow towards the SW, which has resulted in a broadly more distal and mature Llandovery turbidite lithofacies in Down-Armagh than in the Southern Uplands.

10.1144/0036-9276/01-410

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Citations (6)

The development of a rapid scheme for the elucidation of the chemical speciation of elements in sediments

The Science of The Total Environment (1983)

N. Breward D. Peachey

Genetic algorithm

Inorganic Chemical

10.1016/0048-9697(83)90040-2

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Citations (28)

Mercury contamination associated with artisanal gold mining on the island of Mindanao, the Philippines