Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 Shenzhen Municipal Science and Technology Innovation Council https://ror.org/017n8df75 Hu Yue huy6@sustech.edu.cn Shenzhen Municipal Science and Technology Innovation Council https://ror.org/017n8df75 Nan Jingbo Jnan@nigpas.ac.cn Shenzhen Municipal Science and Technology Innovation Council https://ror.org/017n8df75 Yao Weiqi yaowq@sustech.edu.cn Shenzhen Municipal Science and Technology Innovation Council https://ror.org/017n8df75 2024 Accumulation rates of biogenic components of ODP Hole 121-758A dataset https://doi.org/10.1594/PANGAEA.973164 2024-11-11T07:07:57 https://doi.org/10.1594/PANGAEA.973162 The multi-proxies (BAR, bio-SiO2 MAR, and CaCO3 MAR) of productivity in Ocean Drilling Program (ODP) Leg 121 Site 758 Hole A (5°23.05'N, 90°21.67'E) during the late Miocene. Based on the biostratigraphic zones, we convert sediment depths to absolute ages on the Geologic Time Scale 2020 timescale (Gradstein et al., 2020; doi:10.1016/C2020-1-02369-3). We extract barite from marine sediments using the modified sequential leaching method (Eagle et al., 2003; doi:10.1029/2002PA000793; Paytan et al., 1993, doi:10.1038/366445a0) and examine the size and morphology of barite crystals by a scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDX). We use the modified method after Mortlock et al. (1989, doi:10.1016/0198-0149(89)90092-7) and Lyle et al. (2019, doi:10.5194/cp-15-1715-2019) to extract biogenic opal from marine sediments. For the carbonate extraction, we digest sediments with 1.5 ml hydrofluoric acid and 0.5 ml concentrated nitric acid in a 50-ml Teflon tube at 180°C for 12 hours. After digestion, we evaporate all the acids on a 150°C electric heating plate. The sample reacts with 1 ml concentrated nitric acid and 1 ml Milli-Q water at 150°C for 12 hours. The supernatants are diluted to 40 g and are further prepared for Inductively Coupled Plasma Optical Emission Spectrometry analysis. We calculate mass accumulation rate (MAR) as a function of linear sedimentation rate (cm/ka) and dry bulk density (g/cm³). Sedimentation rates are obtained from the known reference points from the chronostratigraphic framework. The ODP reports obtain dry bulk density data (Peirce & Weissel, 1989; doi:10.2973/odp.proc.ir.121.115.1989). The accumulation rates of biogenic components (i.e., BAR, CaCO3 MAR, and bio-SiO2 MAR) are calculated as the product of MAR and the weight percent of biogenic components (wt%) in sediments. In the meantime, we analyze Baexcess to estimate export productivity (Pnew) following the algorithm equation after Dymond et al., 1992; doi:10.1029/92PA00181. 90.3612 90.3612 5.3842 5.3842 90.3612 5.3842 1988-06-15T23:50:00 1988-06-24T13:30:00 63.38 124.04 vertical profile National Key Research and Development Program of China https://doi.org/10.13039/501100012166 2022YFF0802900 National Natural Science Foundation of China NSFC https://www.nsfc.gov.cn/english/site_1/index.html https://doi.org/10.13039/501100001809 42376049 Natural Science Foundation of Guangdong Province https://doi.org/10.13039/501100003453 2024A1515012537 Shenzhen Municipal Science and Technology Innovation Council https://doi.org/10.13039/501100015805 20231114150312001 121-758A 5.3842 90.3612 -2935.0 1988-06-15T23:50:00 1988-06-24T13:30:00 676.8 m 453.83 m Indian Ocean Leg121 https://doi.org/10.2973/odp.proc.ir.121.1989 Weissel, Jeffrey K Peirce, John W 1988-04-30 1988-06-28 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 73 cores; 676.8 m cored; 0 m drilled; 67.1 % recovery 312 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Sample code/label Sample label DSDP/ODP/IODP sample designation hdl:10013/epic.27914.d001 Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 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 Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 Meters below sea floor [mbsf] Depth sed [m] Age Age Ma age http://purl.obolibrary.org/obo/PATO_0000011 Age model, Gradstein et al. (2020) GTS2020 https://doi.org/10.1016/C2020-1-02369-3 Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 Age [Ma] Accumulation rate, mass MAR g/cm**2/ka Accumulation Rate sediment http://purl.obolibrary.org/obo/ENVO_00002007 Calculated Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 MAR [g/cm**2/ka] Barite Brt % http://www.mindat.org/min-4723.html barite https://www.mindat.org/min-4723.html Dimensionless Ratio ψ Sequential leaching method according to Eagle et al. (2003) and Paytan et al. (1993) Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 [wt%] Brt [%] Accumulation rate, barite Acc rate Brt mg/cm**2/ka Accumulation Rate barite https://www.mindat.org/min-4723.html Calculated Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 Acc rate Brt [mg/cm**2/ka] Opal, biogenic silica bSiO2 % opal https://www.mindat.org/min-3004.html biogenic silica http://purl.obolibrary.org/obo/CHEBI_64389 Dimensionless Ratio ψ Opal extraction according to Mortlock et al. (1989) and Lyle et al. (2019) Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 [wt%] bSiO2 [%] Accumulation rate, biogenic silica Acc rate bSiO2 g/cm**2/ka Accumulation Rate biogenic silica http://purl.obolibrary.org/obo/CHEBI_64389 Calculated Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 Acc rate bSiO2 [g/cm**2/ka] Calcium carbonate CaCO3 % calcium carbonate http://purl.obolibrary.org/obo/CHEBI_3311 Dimensionless Ratio ψ Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES) Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 [wt%] CaCO3 [%] Accumulation rate, calcium carbonate mass MAR CaCO3 g/cm**2/ka Accumulation Rate Calculated Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 MAR CaCO3 [g/cm**2/ka] Barium Ba mg/kg barium Inductively Coupled Plasma Mass Spectrometer (ICP-MS), Varian, Varian 820 ES Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 Ba [mg/kg] Aluminium Al mg/kg aluminium Al Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES) Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 Al [mg/kg] Barium excess Ba xs mg/kg Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES) Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 Ba xs [mg/kg] Productivity of carbon Pnew g/m**2/a carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 Mass Accumulation Rate/Flux According to Dymond et al. (1992) https://doi.org/10.1029/92PA01080 Wu Xinying 12332224@mail.sustech.edu.cn 0009-0009-2826-3156 Pnew [g/m**2/a] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Biogenic bloom Late Miocene Marine barite productivity proxies Upwelling author108251 author108252 author108253 author98940 award3374 award3375 award3376 award3378 basis5 campaign93 curlevel30 event13556 funder20769 funder20961 funder21788 funder21792 geocode1 geocode1599 geocode1600 geocode1601 geocode8128 inst21788 license21 method10974 method14138 method15774 method17260 method17261 method17267 method17270 method50 method5059 param132287 param19349 param288 param502940 param504866 param512912 param6272 param666 param70 param71 param790 param8 param82 pi108253 term1073131 term1073135 term1073209 term1074204 term20611 term38263 term38477 term38847 term40136 term40966 term41056 term41260 term41311 term43794 term43863 term44027 term44028 term49980 term69164 term71967 term74903 topotype3