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Rock magnetic and palaeomagnetic studies of British speleothems

Perkins, Andrew and Maher, Barbara (1993) Rock magnetic and palaeomagnetic studies of British speleothems. Journal of Geomagnetism and Geoelectricity, 45. pp. 143-153.

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Abstract

The suitability of speleothems (secondary cave deposits) for palaeomagnetic use is being investigated. Previous workers have demonstrated that speleothems often carry a measurable and stable natural remanent magnetization (NRM). Speleothems may often be a more reliable source of palaeosecular variation (PSV) information than soft sediments. Our results demonstrate repeatable PSV records from two British stalagmites with overlapping growth periods. We present some preliminary rock magnetic data from speleothems which indicate a grain size difference between the magnetic grains in flowstones (laminar speleothems) and stalagmites (columnar speleothems). This has implications for the origin of the NRM.

Item Type: Article
Journal or Publication Title: Journal of Geomagnetism and Geoelectricity
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 53659
Deposited By: ep_importer_pure
Deposited On: 23 Apr 2012 16:50
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 23:21
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/53659

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