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Details of Award

NERC Reference : NER/B/S/2003/00293

Electronic structure and chemical reactivity of Fe-Mn (hydr)oxide minerals in aquatic environments.

Grant Award

Principal Investigator:
Professor DM Sherman, University of Bristol, Earth Sciences
Science Area:
Terrestrial
Marine
Freshwater
Overall Classification:
Freshwater
ENRIs:
Pollution and Waste
Science Topics:
Pollution
Biogeochemical Cycles
Properties Of Earth Materials
Soil science
Abstract:
In the oceans, lakes and rivers, colloidal Fe-Mn oxides undergo sunlight-induced photochemical reactions that release iron, manganese and other bio-limiting trace metals into solution. Photochemical reactions involving iron(II) (hydr)oxide phases subjected to UV radiation in the archean may have played a role in the origin of banded iron formations and early carbon fixation. Redox reactions mediated by Fe-Mn oxide surfaces control the aqueous chemistry of dissolved metals and organic molecules. Microbes use Fe-Mn oxides as electron sources and sinks. Before we can understand these processes, we need to know the electronic structures of Fe-Mn oxide minerals and their surfaces at the mineral-water interface. Here, we propose to investigate the electronic structures of Fe-Mn (hydr)oxide phases using recently developed capabilities in X-ray spectroscopy and first-principles calculations.
Period of Award:
1 Nov 2003 - 31 Oct 2006
Value:
£27,054
Authorised funds only
NERC Reference:
NER/B/S/2003/00293
Grant Stage:
Completed
Scheme:
Small Grants Pre FEC
Grant Status:
Closed
Programme:
Small Grants

This grant award has a total value of £27,054  

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FDAB - Financial Details (Award breakdown by headings)

Total - T&STotal - Other CostsTotal - Equipment
£3,083£13,059£10,913

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