Using pollen in turbidites for vegetation reconstructions

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dc.citation.issue7
dc.citation.volume39
dc.contributor.authorMcDonald LS
dc.contributor.authorStrachan LJ
dc.contributor.authorHolt K
dc.contributor.authorMcArthur AD
dc.contributor.authorBarnes PM
dc.contributor.authorMaier KL
dc.contributor.authorOrpin AR
dc.contributor.authorHorrocks M
dc.contributor.authorGanguly A
dc.contributor.authorHopkins JL
dc.contributor.authorBostock HC
dc.date.accessioned2024-10-23T20:07:31Z
dc.date.available2024-10-23T20:07:31Z
dc.date.issued2024-09-19
dc.description.abstractTurbidites, deposited by sub-aqueous gravity flows, are common in sedimentary archives worldwide and present a unique challenge and opportunity when reconstructing past vegetation through pollen analysis. When sampling pollen from a sediment core for palaeovegetation records, it is common practice to target background sediments (i.e. pelagic sediment) and avoid sampling turbidites, as they are presumed to portray a misleading picture of past vegetation. This assumption stems from our limited understanding of pollen abundance and distribution through turbidites, meaning that palynologists overlook deposits that could potentially be used to reconstruct past vegetation and climate. We present pollen assemblage and sedimentological data from four recent (<150 years) deep marine turbidite deposits from the Hikurangi Subduction Margin, Aotearoa-New Zealand, with the aim of understanding the abundance and distribution of pollen in fine-grained turbidites. We find that pollen is diluted in the bases of turbidites, but despite this dilution, the proportions of different pollen taxa remain consistent through each turbidite. These results confirm that pollen can be sampled from turbidites for palaeovegetation reconstructions and that sampling the fine-grained upper parts of turbidites will provide the best pollen recovery.
dc.description.confidentialfalse
dc.edition.editionOct 2024
dc.format.pagination1053-1063
dc.identifier.citationMcDonald LS, Strachan LJ, Holt K, McArthur AD, Barnes PM, Maier KL, Orpin AR, Horrocks M, Ganguly A, Hopkins JL, Bostock HC. (2024). Using pollen in turbidites for vegetation reconstructions. Journal of Quaternary Science. 39. 7. (pp. 1053-1063).
dc.identifier.doi10.1002/jqs.3653
dc.identifier.eissn1099-1417
dc.identifier.elements-typejournal-article
dc.identifier.issn0267-8179
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/71833
dc.languageEnglish
dc.publisherJohn Wiley and Sons Ltd
dc.publisher.urihttps://onlinelibrary.wiley.com/doi/10.1002/jqs.3653
dc.relation.isPartOfJournal of Quaternary Science
dc.rights(c) The author/sen
dc.rights.licenseCC BY-NC 4.0en
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/deed.enen
dc.subjectHikurangi Subduction Margin
dc.subjectpollen sampling
dc.subjectsediment sorting
dc.subjectturbidites
dc.subjectvegetation reconstruction
dc.titleUsing pollen in turbidites for vegetation reconstructions
dc.typeJournal article
pubs.elements-id491783
pubs.organisational-groupCollege of Health
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