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Seven thousand year duration for a geomagnetic excursion constrained by Th-230(xs)

Abstract:

The duration of geomagnetic excursions may provide important information about the geodynamo. It has proven difficult, however, to assess the exact duration of both excursions and reversals. We combine high-resolution paleomagnetic records from marine sediments with measurements of the 230Thxs flux to the seafloor in order to better constrain the duration of the Iceland Basin Excursion (IBE). We final the duration of the IBE to be ∼7-8 kyr, implying that it is considerably longer than previou...

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Publication status:
Published

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Publisher copy:
10.1029/2007GL031090

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
Journal:
GEOPHYSICAL RESEARCH LETTERS More from this journal
Volume:
34
Issue:
22
Publication date:
2007-11-16
DOI:
ISSN:
0094-8276
Pubs id:
pubs:82856
UUID:
uuid:cea2c97f-8e28-42c8-b0bb-f48e3e5a5b9b
Local pid:
pubs:82856
Source identifiers:
82856
Deposit date:
2012-12-19

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