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      Data report: Quaternary dinoflagellate cyst and pollen census counts from IODP Hole U1352B, Canterbury Basin, New Zealand: Expedition 317

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      Proceedings of the IODP
      Integrated Ocean Drilling Program

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          Abstract

          Pollen, spore, and dinoflagellate cyst census counts are reported from Hole U1352B, part of Integrated Ocean Drilling Program Expedition 317 to the Canterbury Basin, New Zealand. Fifty one samples were processed for palynology between 91.1 and 181.5 m composite depth. Based on the shipboard biostratigraphy, the samples described here include sediment deposited during marine isotope Stages 12-10. Preservation of dinoflagellate cysts and pollen was generally good, although palynomorphs were frequently obscured by the presence of abundant terrestrial organic matter (cuticle and wood fragments) that was observed in all slides. Dinoflagellate cyst assemblages were dominated by the heterotrophic genus Brigantedinium, which made up, on average, 78% of the assemblage (range = 36%-98%). Alternation of two broad pollen associations was observed. Pollen assemblages dominated by Poaceae, Halocarpus, Phyllocladus, and Caryophyllaceae/Chenopodiaceae, interpreted to represent an alpine or cooler climate vegetation, alternated with a pollen assemblage dominated by Fuscospora fusca and Prumnopitys/Podocarpus, reflecting warmer interglacial conditions.

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          Most cited references14

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          Atlas of modern organic-walled dinoflagellate cyst distribution

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            Interglacial diversity

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              The Southland Current: A subantarctic current

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                Author and article information

                Journal
                10.2204/iodp.proc.317.2011
                Proceedings of the IODP
                Integrated Ocean Drilling Program
                1930-1014
                14 May 2014
                Article
                10.2204/iodp.proc.317.207.2014
                2f3e0b9d-6ae0-43f0-9f45-6b785237fc2e

                This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

                History

                Earth & Environmental sciences,Oceanography & Hydrology,Geophysics,Chemistry,Geosciences

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