Details of Award
NERC Reference : NER/A/S/2002/00995
Isotopic signatures of microniches in surface sediments.
Grant Award
- Principal Investigator:
- Professor W Davison, Durham University, Earth Sciences
- Co-Investigator:
- Professor DG Pearson, Durham University, Earth Sciences
- Grant held at:
- Durham University, Earth Sciences
- Science Area:
- Marine
- Terrestrial
- Freshwater
- Earth
- Overall Classification:
- Freshwater
- ENRIs:
- Pollution and Waste
- Natural Resource Management
- Global Change
- Biodiversity
- Environmental Risks and Hazards
- 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:
- 1 Mar 2004 - 30 Jun 2006
- Value:
- £23,087 Split Award
Authorised funds only
- NERC Reference:
- NER/A/S/2002/00995
- Grant Stage:
- Completed
- Scheme:
- Standard Grants Pre FEC
- Grant Status:
- Closed
- Programme:
- Standard Grant
This grant award has a total value of £23,087
FDAB - Financial Details (Award breakdown by headings)
| Total - Staff | Total - Other Costs | Total - Indirect Costs |
|---|---|---|
| £12,331 | £5,083 | £5,672 |
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