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Tracing marine cryptotephras in the North Atlantic during the last glacial period: Protocols for identification, characterisation and evaluating depositional controls ArchiMer
Abbott, Peter M.; Griggs, Adam J.; Bourne, Anna J.; Davies, Siwan M..
Tephrochronology is increasingly being utilised as a key tool for improving chronological models and correlating disparate palaeoclimatic sequences. For many sedimentary environments, however, there is an increased recognition that a range of processes may impart a delay in deposition and/or rework tephra. These processes can affect the integrity of tephra deposits as time-synchronous markers, therefore, it is crucial to assess their isochronous nature, especially when cryptotephras are investigated in a dynamic marine environment. A methodology for the identification and characterisation of marine cryptotephras alongside a protocol for assessing their integrity is outlined. This methodology was applied to a wide network of North Atlantic marine sequences...
Tipo: Text Palavras-chave: Quaternary; Palaeoceanography; Tephrochronology; North Atlantic; Transport and deposition; Marine cores; Glass shard concentrations.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00495/60700/83609.pdf
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