Marino Maria maria.marino@uniba.it 0000-0001-6239-0786 University of Bari Aldo Moro https://ror.org/027ynra39 Rodrigues Teresa teresa.rodrigues@ipma.pt 0000-0001-7811-7506 Instituto Portugues do Mar e da Atmosfera: Lisboa, Portugal IPMA https://www.ipma.pt/en/siteinfo/contacto.jsp https://ror.org/01sp7nd78 Duque-Castaño Monica 0000-0001-8420-3080 Algarve Centre of Marine Sciences CCMAR https://www.ccmar.ualg.pt https://ror.org/00me37y22 Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X University of Bari Aldo Moro https://ror.org/027ynra39 2026 Quantitative data on calcareous nannofossil assemblages between Marine Isotope Stage (MIS) 43 and late MIS 49 in the IODP Site 339-U1387, Gulf of Cadiz dataset https://doi.org/10.1594/PANGAEA.996173 2026-07-22T13:00:12 https://doi.org/10.1594/PANGAEA.986646 A high-resolution dataset is provided on marine and terrestrial biomarkers, alkenone-derived sea surface temperature (SST), and calcareous plankton key taxa in temporally well constrained, high resolution benthic and planktonic oxygen isotope records at Integrated Ocean Drilling Program site U1387 in the Gulf of Cadiz. The investigated time interval encompasses the Early Pleistocene marine isotope stages (MIS) late 49 to MIS 43. The aim is to evidence millennial climate variability during glacial phases of the "41 kyr world" and understand the impact of North Atlantic climate dynamics on the southern Portuguese margin. The age model was obtained by tuning the site U1387 Globigerina bulloides δ18O record (Voelker, 2025) to the high-resolution G. bulloides δ18O record of IODP site U1385 on its LR04-related chronology. Quantitative analyses on coccolithophore assemblages were performed at the Dipartimento di Scienze della Terra e Geoambientali, Bari University (Italy), using a polarized light microscope at 1000 X magnification, and abundances were determined by counting at least 500 coccoliths of all sizes. Abundances of taxa were expressed as percentage. Total coccolith abundances were expressed as n°/g of sediment. Reworked coccoliths or nannoliths plus lithics (>10 mm) have been counted separately during the analysis. Nannofossil dissolution index (DI) has been calculated as follows: small gephyrocapsids/(small gephyrocapsids + Calcidiscus leptoporus). Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Duque-Castaño Monica 0000-0001-8420-3080 Rodrigues Teresa teresa.rodrigues@ipma.pt 0000-0001-7811-7506 Voelker Antje H L antje.voelker@ipma.pt 0000-0001-6465-6023 Maiorano Patrizia patrizia.maiorano@uniba.it 0000-0003-4917-1786 Balestra Barbara 0000-0001-7064-3173 Flores José-Abel flores@usal.es 0000-0003-1909-293X Siniscalchi Agata Addante Marina 0009-0009-5006-0312 Marino Maria maria.marino@uniba.it 0000-0001-6239-0786 2025 High-frequency glacial climate instability during the Early Pleistocene: Insights from IODP site U1387 (Gulf of Cadiz) journal article Palaeogeography, Palaeoclimatology, Palaeoecology 674 https://doi.org/10.1016/j.palaeo.2025.113041 113041 Voelker Antje H L antje.voelker@ipma.pt 0000-0001-6465-6023 2025 Planktonic and benthic foraminifera carbon and oxygen stable isotope records of IODP Site 339-U1387 (Gulf of Cadiz) for the interval of Marine Isotope Stage (MIS) 42 to MIS 46 (1.34-1.41 Ma) dataset https://doi.org/10.1594/PANGAEA.986643 -7.719013333333294 -7.718795 36.805231666667 36.80541 -7.718868333333376 36.80535055555566 314.95 352.62 IODP Integrated Ocean Drilling Program / International Ocean Discovery Program https://www.iodp.org/ 339-U1387A 36.80541 -7.7190133333333 -558.7 Exp339 Exp339 Mediterranean Outflow Mediterranean Outflow 2011-11-17T00:00:00 2011-11-17 2012-01-17T00:00:00 2012-01-17 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Hernandéz-Molina, Francisco Javier Hernandéz-Molina, Francisco Javier Stow, Dorrik A V Stow, Dorrik A V doi:10.2204/iodp.proc.339.2013 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 347.84 m 38 cores; 352.4 m cored; 99 % recovered; 352.4 m penetrated 339-U1387B 36.80541 -7.7187966666667 -558.2 Exp339 Exp339 Mediterranean Outflow Mediterranean Outflow 2011-11-17T00:00:00 2011-11-17 2012-01-17T00:00:00 2012-01-17 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Hernandéz-Molina, Francisco Javier Hernandéz-Molina, Francisco Javier Stow, Dorrik A V Stow, Dorrik A V doi:10.2204/iodp.proc.339.2013 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 327.61 m 36 cores; 338.3 m cored; 97 % recovered; 338.3 m penetrated 339-U1387C 36.805231666667 -7.718795 -558.4 Exp339 Exp339 Mediterranean Outflow Mediterranean Outflow 2011-11-17T00:00:00 2011-11-17 2012-01-17T00:00:00 2012-01-17 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Hernandéz-Molina, Francisco Javier Hernandéz-Molina, Francisco Javier Stow, Dorrik A V Stow, Dorrik A V doi:10.2204/iodp.proc.339.2013 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 409.5 m 61 cores; 580 m cored; 71 % recovered; 870 m penetrated 6480 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Version 2, 2026-07-22: Previous version doi:10.1594/PANGAEA.986648 contains errors in the ages younger than 1415 ka. Event label Event Event Sample code/label Sample label DSDP/ODP/IODP sample designation hdl:10013/epic.27914.d001 Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Sample label 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 IODP Depth Scale Terminology hdl:10013/epic.50267.d001 Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X mbsf, top of sampled interval Depth sed [m] Depth, composite top Depth comp top mcd depth http://purl.obolibrary.org/obo/PATO_0001595 Luminous Intensity J http://dbpedia.org/resource/Luminous_intensity IODP Depth Scale Terminology hdl:10013/epic.50267.d001 Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X top of sampled interval Depth comp top [mcd] Depth, composite, corrected, top Depth comp corr top c-mcd IODP Depth Scale Terminology hdl:10013/epic.50267.d001 Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X related to Voelker et al. (2018) Depth comp corr top [c-mcd] 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 model according to Lisiecki & Raymo (2005) [LR04] https://doi.org/10.1029/2004PA001071 Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Age [ka BP] Coccolithus pelagicus subsp. pelagicus C. pelagicus subsp. pelagicus % Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X C. pelagicus subsp. pelagicus [%] Coccolithus spp. Coccolithus spp. % Coccolithus https://www.marinespecies.org/aphia.php?p=taxdetails&id=178598 Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Coccolithus spp. [%] Helicosphaera spp. Helicosphaera spp. % http://www.marinespecies.org/aphia.php?p=taxdetails&id=235863 Helicosphaera https://www.marinespecies.org/aphia.php?p=taxdetails&id=235863 Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Helicosphaera spp. [%] Syracosphaera spp. Syracosphaera spp. % http://www.marinespecies.org/aphia.php?p=taxdetails&id=115084 Syracosphaera https://www.marinespecies.org/aphia.php?p=taxdetails&id=115084 Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Syracosphaera spp. [%] Rhabdosphaera spp. Rhabdosphaera spp. % http://www.marinespecies.org/aphia.php?p=taxdetails&id=235966 Rhabdosphaera https://www.marinespecies.org/aphia.php?p=taxdetails&id=235966 Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Rhabdosphaera spp. [%] Reticulofenestra spp. Reticulofenestra spp. % Reticulofenestra https://www.marinespecies.org/aphia.php?p=taxdetails&id=555894 Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Reticulofenestra spp. [%] Gephyrocapsa caribbeanica G. caribbeanica % http://www.marinespecies.org/aphia.php?p=taxdetails&id=235953 Gephyrocapsa caribbeanica https://www.marinespecies.org/aphia.php?p=taxdetails&id=235953 Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X G. caribbeanica [%] Calcidiscus spp. Calcidiscus spp. % Calcidiscus https://www.marinespecies.org/aphia.php?p=taxdetails&id=235804 Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Calcidiscus spp. [%] Gephyrocapsa, large Gephyrocapsa large % Gephyrocapsa https://www.marinespecies.org/aphia.php?p=taxdetails&id=235823 large Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X >5.5 µm Gephyrocapsa large [%] Florisphaera profunda F. profunda % http://www.marinespecies.org/aphia.php?p=taxdetails&id=235952 Florisphaera profunda https://www.marinespecies.org/aphia.php?p=taxdetails&id=235952 Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X F. profunda [%] Gephyrocapsa, small Gephyrocapsa small % http://www.marinespecies.org/aphia.php?p=taxdetails&id=235823 Gephyrocapsa https://www.marinespecies.org/aphia.php?p=taxdetails&id=235823 small Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X <3 µm Gephyrocapsa small [%] Gephyrocapsa oceanica G. oceanica % http://www.marinespecies.org/aphia.php?p=taxdetails&id=235955 Gephyrocapsa oceanica https://www.marinespecies.org/aphia.php?p=taxdetails&id=235955 Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X 3-5.5 µm G. oceanica [%] Nannofossils, warm water taxa Nannos warm % Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Nannos warm [%] Coccoliths, other Cocco oth % Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Cocco oth [%] Dissolution index DX dissolution index Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X nannofossil dissolution index DX Coccoliths, reworked Cocco rew % Dimensionless Ratio ψ Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X reworked coccoliths plus lithics Cocco rew [%] Coccoliths, total Cocco 10**6 #/g total https://www.oxforddictionaries.com/definition/american_english/total Quantitative analysis Trotta Samanta samantatrotta.93@gmail.com 0000-0002-8495-034X Cocco [10**6 #/g] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Biomarkers Calcareous nannofossils Planktonic foraminifera author112918 author23262 author27926 author31991 author36371 author436 author44432 author78599 author94520 author94594 basis5 campaign3397526 campaign34841 curlevel30 event2667348 event2667349 event2667350 geocode1 geocode1599 geocode1600 geocode1601 geocode2205 geocode8128 inst20545 inst21601 inst21791 journal12485 license21 method10974 method18294 method5059 method6369 method9338 param1067 param1081 param1083 param130725 param137027 param14582 param15318 param15319 param169763 param2027 param2028 param536424 param55114 param56895 param56897 param57205 param6153 param790 param8966 param92577 pi94520 project4048 ref135642 refds986643 term1061649 term1061681 term1061682 term1061683 term1061685 term1061776 term1061850 term1061856 term1062264 term1062272 term1073131 term1073135 term2663900 term2663906 term38253 term38263 term40796 term41056 term43794 term43863 term43884 term43975 term47429 term48675 term48797