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dc.contributor.authorStewart, Helenaen_UK
dc.contributor.authorBradwell, Tomen_UK
dc.contributor.authorBullard, Joannaen_UK
dc.contributor.authorMcCulloch, Robert Den_UK
dc.contributor.authorMillar, Ianen_UK
dc.description.abstractMineral dust concentrations are coupled to climate over glacial-interglacial cycles with increased dust deposition occurring during major cold phases over the last ~100 ka. Holocene records suggest considerable spatial and temporal variability in the magnitude, frequency and timing of dust peaks that reflects regional or local drivers of dust emissions and transport. Here, we present stratigraphical, geochemical and isotopic evidence for dust deposition from two high-resolution peat sequences 200 km apart in northern Scotland spanning the last c. 8200 years. εNd isotope data suggest the dominant minerogenic dust source switches between a low latitude (likely Saharan) and a high latitude, Icelandic source. Marked peaks in increased minerogenic dust deposition at: c. 5.4–5.1, 4.0–3.9, 2.8–2.6, 1.0 and 0.3 ka BP occur against a backdrop of low dust deposition during the mid-Holocene (c. 5.0–4.0 ka BP) and increased background levels of dust during the neoglacial period (<4.0 ka BP). These dust peaks coincide with periods of glacial advance in Iceland and heightened storminess in the North Atlantic. Isotope data for additional dust peaks at c. 1.0 and 0.7 ka BP and the last ~50 years suggest these reflect increased dust from the Sahara associated with aridity and land-use change in North Africa during the Late-Holocene, and modern anthropogenic sources. This work highlights the complexity of Holocene records of dust deposition in the North Atlantic and emphasises the role of dynamic sub-Polar glaciers and their meltwater systems as a significant dust source.en_UK
dc.publisherSAGE Publicationsen_UK
dc.relationStewart H, Bradwell T, Bullard J, McCulloch RD & Millar I (2022) Increased North Atlantic dust deposition linked to Holocene Icelandic glacier fluctuations. <i>Holocene</i>.
dc.rights© The Author(s) 2022. This article is distributed under the terms of the Creative Commons Attribution 4.0 License ( which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (
dc.subjectpeat archivesen_UK
dc.subjectradiogenic isotopesen_UK
dc.titleIncreased North Atlantic dust deposition linked to Holocene Icelandic glacier fluctuationsen_UK
dc.typeJournal Articleen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.funderNatural Environment Research Councilen_UK
dc.description.notesOutput Status: Forthcoming/Available Onlineen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationLoughborough Universityen_UK
dc.contributor.affiliationUniversity of Edinburghen_UK
dc.contributor.affiliationBritish Geological Surveyen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorStewart, Helena|en_UK
local.rioxx.authorBradwell, Tom|0000-0003-0947-3309en_UK
local.rioxx.authorBullard, Joanna|0000-0002-2030-0188en_UK
local.rioxx.authorMcCulloch, Robert D|en_UK
local.rioxx.authorMillar, Ian|en_UK
local.rioxx.projectProject ID unknown|Natural Environment Research Council|
Appears in Collections:Biological and Environmental Sciences Journal Articles

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