New Holocene tephras and a proxy climate record from a blanket mire in northern Skye, Scotland


Langdon, P.G. and Barber, K.E. (2001) New Holocene tephras and a proxy climate record from a blanket mire in northern Skye, Scotland Journal of Quaternary Science, 16, (8), pp. 753-759. (doi:10.1002/jqs.655).

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Description/Abstract

Four Holocene tephras of Icelandic origin have been identified and geochemically characterised from a water shedding blanket peat sequence on the Trotternish ridge, Isle of Skye, Scotland. Geochemical characterisation of the shards propose the Glen Garry tephra to be present, a tephra layer of Hekla origin incorporating shards from Hekla-4, as well as two new tephras dated by interpolation from a radiocarbon based chronology to ca. 830 cal. yr BP and ca. 2340 cal. yr BP. The new historic tephra has an ambiguous geochemistry and therefore has not been correlated with other known Icelandic historic tephras. The new prehistoric tephra is suggested as originating from the Snæfellsj ¨ okull volcano in northwest Iceland and forms an important stratigraphical marker in this Holocene sequence. A proxy climate record has been derived from humification analyses of the peat, which compares well with other regional palaeoclimatic reconstructions, as well as enabling correlations based on tephra geochemical linkages between sites and climatic records at precise times in the past

Item Type: Article
Digital Object Identifier (DOI): doi:10.1002/jqs.655
ISSNs: 0267-8179 (print)
Keywords: tephra, peat humification, Holocene proxy climate record, ombrotrophic mire, Scotland, Iceland.
Subjects:

ePrint ID: 55001
Date :
Date Event
2001Published
Date Deposited: 01 Aug 2008
Last Modified: 16 Apr 2017 17:45
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/55001

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