Details of Award
NERC Reference : NER/T/S/2000/00039
The timing and duration of Pleistocene palaeomagnetic excursions: A study on ODP Leg 166 material
Grant Award
- Principal Investigator:
- Professor C MacNiocaill, University of Oxford, Earth Sciences
- Co-Investigator:
- Professor G Henderson, University of Oxford, Earth Sciences
- Grant held at:
- University of Oxford, Earth Sciences
- Science Area:
- Earth
- Overall Classification:
- Earth
- ENRIs:
- Global Change
- Science Topics:
- Sediment/Sedimentary Processes
- Quaternary Science
- Mantle & Core Processes
- Abstract:
- The number and duration (approximately 2-l0kyr) of geomagnetic excursions since the Bruhnes/Matuyama boundary indicate that the Earth's magnetic field is characterised by a high degree of instability. They may also indicate that excursions and full reversals have different dynamical timescales; excursions corresponding to the convective timescale of the outer core (approximately 500yrs) and full reversals characteristic of the diffusive timescale (greater than 3kyr) of the inner core. We propose to palaeomagnetically analyse and isotopically date two separate magnetic excursions (Blake & Jamaica) recorded in ODP Leg 166 cores in order to test if they have a characteristic timescale and to analyse in detail how the field behaves during an excursion. This will yield new constraints on the dynamical timescales of geomagnetic excursions and also provide a direct chronology for the timing and duration of Blake and Jamaica events.
- NERC Reference:
- NER/T/S/2000/00039
- Grant Stage:
- Completed
- Scheme:
- Directed Pre FEC
- Grant Status:
- Closed
- Programme:
- Ocean Drilling Programme
This grant award has a total value of £18,709
FDAB - Financial Details (Award breakdown by headings)
| Total - T&S | Total - Staff | Total - Other Costs | Total - Indirect Costs |
|---|---|---|---|
| £1,735 | £8,169 | £5,049 | £3,758 |
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