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Details of Award

NERC Reference : NER/A/S/2002/00775

Isotopic signatures of microniches in surface sediments.

Grant Award

Principal Investigator:
Professor W Davison, Lancaster University, Environmental Science
Co-Investigator:
Professor DG Pearson, Durham University, Earth Sciences
Science Area:
Terrestrial
Marine
Freshwater
Earth
Overall Classification:
Freshwater
ENRIs:
Pollution and Waste
Natural Resource Management
Global Change
Environmental Risks and Hazards
Biodiversity
Science Topics:
Environmental Microbiology
Biogeochemical Cycles
Sediment/Sedimentary Processes
Technol. for Environ. Appl.
Abstract:
New developments in 2D micron-scale measurements in sediments of trace metals and sulfur by DGT (diffusive gradients in thin-films) have revealed microniche structure. We propose to measure, for the first time, isotopic ratios of Fe and S within microniches, to begin to unravel the detailed mechanisms that supply the remobilized metal. With its in built pre-concentration, element selection and simple matrix, DGT is an ideal partner for laser ablation and ICP with multicollector MS detection. In contrast to bulk measurements, there is a possibility that a relatively large isotopic variation can be observed within a microniche. Allied to elemental ratios, the isotope measurements will yield directly information about the relative roles of inorganic (redox, desorption, dissolution/precipitation) and biological (microbial activity) processes in the localised remobilisation of metals.
Period of Award:
22 Mar 2004 - 21 Jul 2006
Value:
£76,010 Lead Split Award
Authorised funds only
NERC Reference:
NER/A/S/2002/00775
Grant Stage:
Completed
Scheme:
Standard Grants Pre FEC
Grant Status:
Closed
Programme:
Standard Grant

This grant award has a total value of £76,010  

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FDAB - Financial Details (Award breakdown by headings)

Total - T&STotal - StaffTotal - Other CostsTotal - Indirect Costs
£4,096£44,764£6,558£20,592

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