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Natural Environment Research Council
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Details of Award

NERC Reference : NER/T/S/2001/00933

Controls on compositional dynamics of Emperor-Hawaii plume; a combined isotope (Sr-Nd-Hf-Pb) & trace element study of plume structure & temporal evol

Grant Award

Principal Investigator:
Dr P Kempton, University of Leicester, Geology
Co-Investigator:
Professor AD Saunders, University of Leicester, Sch of Geog, Geol & the Environment
Science Area:
Earth
Overall Classification:
Earth
ENRIs:
Global Change
Science Topics:
Volcanic Processes
Properties Of Earth Materials
Mantle & Core Processes
Abstract:
We request funding to support a PDRA to analyse cores recovered from Leg 197, Emperor Seamount drilling, to test the hypothesis that changes in lava chemistry in the ca. 81 Ma-old Detroit Seamount are the result of interaction between the plume and Cretaceous MORB mantle at a spreading ridge. As an alternative hypothesis, we propose that an expanded database of trace elements and isotopes, notably 176Hf/177Hf, will demonstrate that the changes in lava chemistry were due to changing melt contributions from a heterogeneous, and partially depleted, mantle plume, and that the involvement of MORB mantle was insignificant. Combined with samples from seamounts drilled during Leg 55 of the DSDP and Leg 145 of ODP, we shall generate an internally consistent database with which to address fundamental issues about plume structure, evolution and interaction with the overriding lithosphere.
Period of Award:
1 Mar 2002 - 31 Aug 2003
Value:
£33,065 Split Award
Authorised funds only
NERC Reference:
NER/T/S/2001/00933
Grant Stage:
Completed
Scheme:
Directed Pre FEC
Grant Status:
Closed

This grant award has a total value of £33,065  

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FDAB - Financial Details (Award breakdown by headings)

Total - T&STotal - StaffTotal - Other CostsTotal - Indirect Costs
£1,641£18,867£3,880£8,679

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