Sanchez Goñi Maria Fernanda maria.sanchez-goni@u-bordeaux.fr http://www.epoc.u-bordeaux.fr/index.php?lang=en&page=fiche_permanents&id=mfsanche 0000-0001-8238-7488 Lopez-Martinez Constancia 2026 Relative abundance of main pollen from sediment core MD99-2203 off Cape Hatteras, SW North Atlantic dataset https://doi.org/10.1594/PANGAEA.992493 2026-07-09T05:16:20 The data presented derive from sediment core MD99-2203, collected in 1999 off Cape Hatteras as part of the IMAGES project. The 41-m-long sedimentary sequence was retrieved during leg MD114 by the R/V Marion Dufresne, equipped with a Giant Calypso corer. The primary objective was to document paleoceanographic and paleoclimatic changes at 35°N in the southwestern North Atlantic, at the boundary between subtropical and subpolar gyre influences, over the past 50,000 years, . We present pollen percentages of the main ecological groups (Pinus, Boreal forest, Temperate forest, cumulative Boreal and Temperate forest, and Cyperaceae) from the samples analyzed between 1350 and 3800 cm depth (corrected depth: 1226-3672 cm). Most of the pollen analysis was performed at 10 to 20 cm resolution. The sampling resolution in the intervals 1910-2560 cm (corrected depth: 1786-2436 cm) and 3138-3800 cm (corrected depth: 3014-3672 cm) varies between 17 and 40 cm. One hundred thirty samples were analyzed for pollen grains and spores. Sample preparation followed standard palynological protocols using HCl and HF. For each sample, 1.5-5.5 cm³ of fine sediment (<150 µm) was processed at an average sampling resolution of 10–20 cm. The final residues were mounted unstained in bidistilled glycerin, a mobile mounting medium that allows rotation of pollen grains and spores.Pollen and spores were identified using a Zeiss Axio Imager A10 light microscope at 400X and 1000x magnifications. In most of the samples, a minimum of 100 pollen grains, excluding Pinus, and 20 pollen morphotypes were counted. Sanchez Goñi Maria Fernanda maria.sanchez-goni@u-bordeaux.fr http://www.epoc.u-bordeaux.fr/index.php?lang=en&page=fiche_permanents&id=mfsanche 0000-0001-8238-7488 Rossignol Linda linda.rossignol@u-bordeaux.fr Londeix Laurent Extier Thomas thomas.extier@u-bordeaux.fr 0000-0002-9531-8753 Weitzel Nils Naughton Filipa filipa.naughton@ipma.pt 0000-0002-3055-9396 López-Martínez Constancia Salgueiro Emilia emilia.salgueiro@ipma.pt 0000-0003-1000-2977 Fourcade Tiffanie tiffanie.fourcade@u-bordeaux-montaigne.fr 0000-0002-0917-6614 Grousset Francis E f.grousset@epoc.u-bordeaux1.fr 2026 Land–sea thermal decoupling and iceberg discharges in the western North Atlantic during Heinrich Stadials 5–3 journal article Quaternary Science Reviews 389 https://doi.org/10.1016/j.quascirev.2026.110141 110141 -75.201 -75.201 34.973 34.973 -75.201 34.973 1999-08-01T00:00:00 1999-08-01T00:00:00 13.5 38.0 vertical profile IMAGES International Marine Global Change Study MARUM - Center for Marine Environmental Sciences, University Bremen MARUM http://www.marum.de/ https://ror.org/04ers2y35 MD99-2203 408US 34.973 -75.201 Cape Hateras -620.0 1999-08-01T00:00:00 MD114 MD114 IMAGES V IMAGES V 1999-08-01T00:00:00 1999-08-01 1999-09-30T00:00:00 1999-09-30 Marion Dufresne (1995) https://en.wikipedia.org/wiki/Marion_Dufresne_(1994) FNIN 9050814 Labeyrie, Laurent D Labeyrie, Laurent D hdl:10013/epic.42867.d001 Marion Dufresne (1995) https://en.wikipedia.org/wiki/Marion_Dufresne_(1994) FNIN 9050814 Calypso Corer CALYPSO 38.05 m 780 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Sanchez Goñi Maria Fernanda maria.sanchez-goni@u-bordeaux.fr http://www.epoc.u-bordeaux.fr/index.php?lang=en&page=fiche_permanents&id=mfsanche 0000-0001-8238-7488 Sample depth Depth sed [m] Depth, corrected Depth corr m depth http://purl.obolibrary.org/obo/PATO_0001595 Length L http://dbpedia.org/resource/Length Sanchez Goñi Maria Fernanda maria.sanchez-goni@u-bordeaux.fr http://www.epoc.u-bordeaux.fr/index.php?lang=en&page=fiche_permanents&id=mfsanche 0000-0001-8238-7488 Depth corr [m] AGE Age ka BP http://en.wikipedia.org/wiki/Kyr age http://purl.obolibrary.org/obo/PATO_0000011 Time T http://dbpedia.org/resource/Time Age, 14C Sanchez Goñi Maria Fernanda maria.sanchez-goni@u-bordeaux.fr http://www.epoc.u-bordeaux.fr/index.php?lang=en&page=fiche_permanents&id=mfsanche 0000-0001-8238-7488 Age [ka BP] Pinus Pinus % Pinus https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=18035 Dimensionless Ratio ψ Relative abundance (counted and calculated from the <150 µm fraction) Sanchez Goñi Maria Fernanda maria.sanchez-goni@u-bordeaux.fr http://www.epoc.u-bordeaux.fr/index.php?lang=en&page=fiche_permanents&id=mfsanche 0000-0001-8238-7488 Pinus [%] Pollen, boreal forest Pollen bo forest % Dimensionless Ratio ψ Relative abundance (counted and calculated from the <150 µm fraction) Sanchez Goñi Maria Fernanda maria.sanchez-goni@u-bordeaux.fr http://www.epoc.u-bordeaux.fr/index.php?lang=en&page=fiche_permanents&id=mfsanche 0000-0001-8238-7488 Pollen bo forest [%] Pollen, temperate forest Pollen te forest % Dimensionless Ratio ψ Relative abundance (counted and calculated from the <150 µm fraction) Sanchez Goñi Maria Fernanda maria.sanchez-goni@u-bordeaux.fr http://www.epoc.u-bordeaux.fr/index.php?lang=en&page=fiche_permanents&id=mfsanche 0000-0001-8238-7488 Pollen te forest [%] Pollen, boreal + temperate forest, cumulated Pollen bo + te forest cum % cumulated Dimensionless Ratio ψ Relative abundance (counted and calculated from the <150 µm fraction) Sanchez Goñi Maria Fernanda maria.sanchez-goni@u-bordeaux.fr http://www.epoc.u-bordeaux.fr/index.php?lang=en&page=fiche_permanents&id=mfsanche 0000-0001-8238-7488 Pollen bo + te forest cum [%] Cyperaceae Cyperac % Cyperaceae https://www.marinespecies.org/aphia.php?p=taxdetails&id=382428 Dimensionless Ratio ψ Relative abundance (counted and calculated from the <150 µm fraction) Sanchez Goñi Maria Fernanda maria.sanchez-goni@u-bordeaux.fr http://www.epoc.u-bordeaux.fr/index.php?lang=en&page=fiche_permanents&id=mfsanche 0000-0001-8238-7488 Cyperac [%] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable pollen data SE North America SW North Atlantic vegetation changes author106208 author114876 author114877 author114893 author26141 author26378 author28897 author30931 author58496 author64516 author867 basis94 campaign21508 campaign3373591 curlevel30 event2025652 geocode1 geocode1599 geocode1600 geocode1601 geocode2205 geocode8128 inst277 journal13626 license21 method10861 method18800 method8562 param135115 param154862 param154866 param27080 param50651 param555319 pi26378 project3001 ref137938 term1030695 term1061932 term1073131 term1073135 term21614 term38263 term39984 term41056 term43794 term43863 term43975 term688 term74541 term77206 term77207 topotype3