de.pangaea.dataset992493 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-08-07T03:18:46Z https://doi.pangaea.de/10.1594/PANGAEA.992493 <gco:CharacterString>Relative abundance of main pollen from sediment core MD99-2203 off Cape Hatteras, SW North Atlantic</gco:CharacterString> 2026-07-09T05:16:20 publication https://doi.org/10.1594/PANGAEA.992493 Sanchez Goñi, Maria Fernanda
maria.sanchez-goni@u-bordeaux.fr
https://orcid.org/0000-0001-8238-7488 information author Lopez-Martinez, Constancia author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital 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. completed Sanchez Goñi, Maria Fernanda
maria.sanchez-goni@u-bordeaux.fr
https://orcid.org/0000-0001-8238-7488 information principalInvestigator pollen data SE North America SW North Atlantic vegetation changes theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact IMAGES International Marine Global Change Study theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -75.201 -75.201 34.973 34.973 1999-08-01T00:00:00 1999-08-01T00:00:00 13.5 38.0 DEPTH, sediment/rock physicalMeasurement Sample depth m m Depth, corrected physicalMeasurement m m AGE physicalMeasurement Age, 14C ka BP ka BP Pinus physicalMeasurement Relative abundance (counted and calculated from the <150 µm fraction) % % Pollen, boreal forest physicalMeasurement Relative abundance (counted and calculated from the <150 µm fraction) % % Pollen, temperate forest physicalMeasurement Relative abundance (counted and calculated from the <150 µm fraction) % % Pollen, boreal + temperate forest, cumulated physicalMeasurement Relative abundance (counted and calculated from the <150 µm fraction) % % Cyperaceae physicalMeasurement Relative abundance (counted and calculated from the <150 µm fraction) % % text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.992493?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: MD99-2203 (408US) * LATITUDE: 34.973000 * LONGITUDE: -75.201000 * DATE/TIME: 1999-08-01T00:00:00 * ELEVATION: -620.0 m * RECOVERY: 38.05 m * LOCATION: Cape Hateras * CAMPAIGN: MD114 * BASIS: Marion Dufresne (1995) * METHOD/DEVICE: Calypso Corer 1999-08-01T00:00:00 Supplement to <gco:CharacterString>Land–sea thermal decoupling and iceberg discharges in the western North Atlantic during Heinrich Stadials 5–3</gco:CharacterString> 2026-01-01 publication https://doi.org/10.1016/j.quascirev.2026.110141 Sanchez Goñi, Maria Fernanda
maria.sanchez-goni@u-bordeaux.fr
https://orcid.org/0000-0001-8238-7488 information author Rossignol, Linda
linda.rossignol@u-bordeaux.fr
author Londeix, Laurent author Extier, Thomas
thomas.extier@u-bordeaux.fr
https://orcid.org/0000-0002-9531-8753 information author Weitzel, Nils author Naughton, Filipa
filipa.naughton@ipma.pt
https://orcid.org/0000-0002-3055-9396 information author López-Martínez, Constancia author Salgueiro, Emilia
emilia.salgueiro@ipma.pt
https://orcid.org/0000-0003-1000-2977 information author Fourcade, Tiffanie
tiffanie.fourcade@u-bordeaux-montaigne.fr
https://orcid.org/0000-0002-0917-6614 information author Grousset, Francis E
f.grousset@epoc.u-bordeaux1.fr
author documentDigital Quaternary Science Reviews 389 110141