Toyos Maria H mtoyos@udec.cl 0000-0001-5827-6753 MARUM - Center for Marine Environmental Sciences, University Bremen MARUM http://www.marum.de/ https://ror.org/04ers2y35 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam AWI Potsdam http://www.awi.de/en/institute/sites/potsdam/ https://ror.org/032e6b942 Lamy Frank frank.lamy@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/frank-lamy.html 0000-0001-5952-1765 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Lange Carina Beatriz clange@udec.cl http://www.copas.cl/eng/copas/personal/cv_personal.php?getby=id&value=1 0000-0002-2916-4207 Departamento de Oceanografia, Universidad de Conceptión UDEC http://www.natura.udec.cl/oceanografia/ https://ror.org/0460jpj73 Abell Jordan T 0000-0002-2458-8844 University of Arizona UA http://www.arizona.edu/ https://ror.org/03m2x1q45 Lembke-Jene Lester Lester.Lembke-Jene@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/lester-lembke-jene.html 0000-0002-6873-8533 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Arz Helge Wolfgang helge.arz@io-warnemuende.de 0000-0002-1997-1718 Leibniz Institute for Baltic Sea Research, Warnemünde IOW https://www.io-warnemuende.de/en_index.html https://ror.org/03xh9nq73 Winckler Gisela winckler@ldeo.columbia.edu 0000-0001-8718-2684 Lamont-Doherty Earth Observatory of Columbia University, New York LDEO http://www.ldgo.columbia.edu/ https://ror.org/02e2tgs60 2025 Concentrations of export production indicators and corrected and non-corrected accumulation rates of indicators of opal, Carbonates, Fe, TOC and Barium excess from core PS97/093-2 over the past 1.4 Ma dataset https://doi.org/10.1594/PANGAEA.968898 2025-01-31T07:35:16 Studying oceanic particle fluxes from sediment records is an important component of paleoceanography. Traditionally, we calculate these fluxes using a combination of linear sedimentation rates derived from age models and sediment density, known as age model-derived bulk mass accumulation rates (BMAR). However, BMAR and the resulting paleoceanographic interpretations may suffer from substantial errors if lateral redistribution of sediments is not considered. In fact, this is expected to be a common phenomenon in the Southern Ocean due to the strong bottom water circulation induced by the Antarctic Circumpolar Current. In the study associated to this dataset, we assess export production and its drivers over the past ~1.4 Myr near the Drake Passage entrance using BMAR of biogenic Barium, organic carbon, biogenic opal, calcium carbonate, and iron from sediment core PS97/093-2, all of which are corrected for lateral sediment redistribution (corr-BMAR). To quantify this correction, we explore the relationship between sortable silt as a bottom current strength proxy and 230Th-derived focusing factors as indicators of lateral redistribution of sediments, respectively. Therefore, this dataset includes the following data: Concentrations of export production indicators (opal, Carbonates, Fe, total organic carbon, and excess of Barium), dry bulk density, sortable silt (averaged between tie points), calculated focusing factors, and corrected and non-corrected accumulation rates of export production indicators of core PS97/093-2 over the past 1.4 million years. Toyos Maria H mtoyos@udec.cl 0000-0001-5827-6753 Lamy Frank frank.lamy@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/frank-lamy.html 0000-0001-5952-1765 Lange Carina Beatriz clange@udec.cl http://www.copas.cl/eng/copas/personal/cv_personal.php?getby=id&value=1 0000-0002-2916-4207 Abell Jordan T 0000-0002-2458-8844 Lembke-Jene Lester Lester.Lembke-Jene@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/lester-lembke-jene.html 0000-0002-6873-8533 Arz Helge Wolfgang helge.arz@io-warnemuende.de 0000-0002-1997-1718 Winckler Gisela winckler@ldeo.columbia.edu 0000-0001-8718-2684 2025 A New Perspective on Past Export Production in the Subantarctic South Pacific for the Last ∼1.4 Myr journal article Paleoceanography and Paleoclimatology 40(2) https://doi.org/10.1029/2024PA004929 e2024PA004929 -70.27467 -70.27467 -57.49917 -57.49917 -70.27467 -57.49917 2016-03-20T17:30:00 2016-03-20T17:30:00 0.0 16.38 Helmholtz_ChangingEarth Changing Earth – Sustaining our Future https://earthenvironment.helmholtz.de/changing-earth/program/ Helmholtz Association of German Research Centres HGF https://www.helmholtz.de https://ror.org/0281dp749 Austral University of Chile UACh https://www.uach.cl/ https://doi.org/10.13039/501100009833 1500003 FONDAP-IDEAL German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 390741603 EXC 2077: The Ocean Floor – Earth's Uncharted Interface https://gepris.dfg.de/project/390741603 PS97/093-2 https://store.pangaea.de/Images/Cores/PS-stationcard/PS97_093-stationcard.pdf -57.49917 -70.27467 South Pacific Ocean -3782.2 2016-03-20T17:30:00 PS97 PS97 ANT-XXXI/3 ANT-XXXI/3 Punta Arenas, Chile 2016-02-16T00:00:00 2016-02-16 Punta Arenas, Chile 2016-04-08T00:00:00 2016-04-08 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Lamy, Frank Lamy, Frank doi:10.2312/BzPM_0701_2016 20160001 hdl:10013/epic.46151.d001 http://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS97.png hdl:10013/epic.47579.d001 doi:10.1594/PANGAEA.864235 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Piston corer PC 16.45 m 6188 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 Depth sed [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 [ka BP] Opal, biogenic silica bSiO2 % opal https://www.mindat.org/min-3004.html biogenic silica http://purl.obolibrary.org/obo/CHEBI_64389 Dimensionless Ratio ψ wt% bSiO2 [%] (wt%) Calcium carbonate CaCO3 % calcium carbonate http://purl.obolibrary.org/obo/CHEBI_3311 Dimensionless Ratio ψ wt% CaCO3 [%] (wt%) Iron Fe % Dimensionless Ratio ψ wt% Fe [%] (wt%) Barium excess Ba xs % Dimensionless Ratio ψ excessTi , wt% Ba xs [%] (excessTi , wt%) Carbon, organic, total TOC % carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic total https://www.oxforddictionaries.com/definition/american_english/total Dimensionless Ratio ψ wt% TOC [%] (wt%) Density, dry bulk DBD g/cm**3 Density http://dbpedia.org/resource/Density DBD [g/cm**3] Sortable-silt mean SS µm Length L http://dbpedia.org/resource/Length averaged between age model tie points SS [µm] (averaged between age model ti...) Focusing factor Focus fac Calculated Focus fac (Calculated) Accumulation rate, bulk mass MAR bulk g/cm**2/ka Accumulation Rate MAR bulk [g/cm**2/ka] Accumulation rate, bulk mass, opal MAR bulk opal g/cm**2/ka Accumulation Rate opal https://www.mindat.org/min-3004.html MAR bulk opal [g/cm**2/ka] Accumulation rate, bulk mass, calcium carbonate MAR bulk CaCO3 g/cm**2/ka Accumulation Rate calcium carbonate http://purl.obolibrary.org/obo/CHEBI_3311 MAR bulk CaCO3 [g/cm**2/ka] Accumulation rate, bulk mass, iron MAR bulk Fe mg/cm**2/ka Accumulation Rate Iron https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=100628 MAR bulk Fe [mg/cm**2/ka] Accumulation rate, bulk mass, barium, excess MAR bulk Baxs mg/cm**2/ka Accumulation Rate barium MAR bulk Baxs [mg/cm**2/ka] Accumulation rate, bulk mass, carbon, organic, total MAR bulk TOC mg/cm**2/ka Accumulation Rate carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic total https://www.oxforddictionaries.com/definition/american_english/total MAR bulk TOC [mg/cm**2/ka] Accumulation rate, bulk mass MAR bulk g/cm**2/ka Accumulation Rate Corrected MAR bulk [g/cm**2/ka] (Corrected) Accumulation rate, bulk mass, standard error MAR bulk std e ± Accumulation Rate standard error std e https://en.wikipedia.org/wiki/Standard_error Corrected MAR bulk std e [±] (Corrected) Accumulation rate, bulk mass, opal MAR bulk opal g/cm**2/ka Accumulation Rate opal https://www.mindat.org/min-3004.html Corrected MAR bulk opal [g/cm**2/ka] (Corrected) Accumulation rate, bulk mass, opal, standard error MAR bulk opal std e ± Accumulation Rate opal https://www.mindat.org/min-3004.html standard error std e https://en.wikipedia.org/wiki/Standard_error Corrected MAR bulk opal std e [±] (Corrected) Accumulation rate, bulk mass, calcium carbonate MAR bulk CaCO3 g/cm**2/ka Accumulation Rate calcium carbonate http://purl.obolibrary.org/obo/CHEBI_3311 Corrected MAR bulk CaCO3 [g/cm**2/ka] (Corrected) Accumulation rate, bulk mass, calcium carbonate, standard error MAR bulk CaCO3 std e ± Accumulation Rate calcium carbonate http://purl.obolibrary.org/obo/CHEBI_3311 standard error std e https://en.wikipedia.org/wiki/Standard_error Corrected MAR bulk CaCO3 std e [±] (Corrected) Accumulation rate, bulk mass, iron MAR bulk Fe mg/cm**2/ka Accumulation Rate Iron https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=100628 Corrected MAR bulk Fe [mg/cm**2/ka] (Corrected) Accumulation rate, bulk mass, iron, standard error MAR bulk Fe std e ± Accumulation Rate Iron https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=100628 standard error std e https://en.wikipedia.org/wiki/Standard_error Corrected MAR bulk Fe std e [±] (Corrected) Accumulation rate, bulk mass, barium, excess MAR bulk Baxs mg/cm**2/ka Accumulation Rate barium Corrected MAR bulk Baxs [mg/cm**2/ka] (Corrected) Accumulation rate, bulk mass, barium, excess, standard error MAR bulk Baxs std e ± Accumulation Rate barium standard error std e https://en.wikipedia.org/wiki/Standard_error Corrected MAR bulk Baxs std e [±] (Corrected) Accumulation rate, bulk mass, carbon, organic, total MAR bulk TOC mg/cm**2/ka Accumulation Rate carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic total https://www.oxforddictionaries.com/definition/american_english/total Corrected MAR bulk TOC [mg/cm**2/ka] (Corrected) Accumulation rate, bulk mass, carbon, organic, total, standard error MAR bulk TOC std e ± Accumulation Rate carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic total https://www.oxforddictionaries.com/definition/american_english/total standard error std e https://en.wikipedia.org/wiki/Standard_error Corrected MAR bulk TOC std e [±] (Corrected) CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Accumulation rate Export Production focusing factor Paleoceanography paleoproductivity. Southern Ocean Subantarctic zone author10708 author10825 author20318 author27669 author36417 author71369 author98292 award3119 award747 basis1 campaign3390840 campaign39820 curlevel30 event2805956 funder20472 funder21253 geocode1 geocode1599 geocode1600 geocode1601 geocode2205 geocode8128 inst13615 inst1866 inst20477 inst21044 inst24 inst277 inst32 inst49 journal16885 license21 method10655 method50 method7048 param133269 param22 param28447 param49319 param504865 param529019 param529020 param529021 param529022 param529023 param534162 param534163 param534164 param534165 param534166 param534167 param67 param70 param71 param77 project4881 ref126224 term1073131 term1073135 term1073209 term1074204 term2022952 term21005 term264 term26982 term38253 term38263 term38477 term38527 term40966 term41056 term41260 term43792 term43794 term43863 term43975 term44028 term44419 term47129 term48957 term49660 term50991 term70708 term71334