cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.947106
title: Porewater chemistry from sediment core CDISK4-4 from the North Pacific CDisK-IV expedition

description: Samples were collected at six oceanographic stations during cruise CDisK-IV on board RV Kilo Moana from Hawaii to Alaska in August 2017 using an 8-barrel multi-corer. Sediment porewaters were extracted in a cold room, using Rhizon samplers inserted into pre-drilled holes in the core liner, from two cores with undisturbed sediment-water interfaces, from each multi-corer cast. Pre-treatment of the Rhizon samplers and the sampling protocol was different for each of the two cores. Rhizons inserted to core number 1 from each cast were new from the box, and the samples were used for nutrient and major element analyses. A 20 ml syringe was filled from each Rhizon, inserted dry, and the extracted water was filtered again via a 0.45 µm filter. Rhizons inserted to core number 2 were acid-cleaned with 0.001 N HNO3 for at least 24 hours, rinsed with de-ionised water (Milli-Q, Millipore) and kept in de-ionised water until use. The first 1 mL extracted was discarded, and the next 2 mL were stored in acid cleaned polypropylene (PP) vials. These samples, destined for analyses of trace and major elements, were acidified with HNO3 to final acid concentration of 0.035 M.
DOI: 10.13130/rd_unimi/n9enq4/5xtqdz
title: edges_final-167.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/sfbpoy
title: nodes_init-198.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.947070
title: XRD data from the North Pacific CDisK-IV expedition

description: XRD analyses of the clay fraction of sediment samples collected in Stations 2 and 4 of cruise CDisK-IV. The clay fraction was separated from the bulk sediment by inserting several hundred milligrams of wet sediment into 50 mL centrifuge tubes filled with double distilled water to the 25 mL mark. The tubes were vortexed and settled. After 30 min, 1 mL of the water sample was pipetted from a depth of 2-2.2 cm below the water surface and dehydrated on a silicon slab. X-ray powder diffraction data of the clay fraction of the sediments were collected in Bragg-Brentano geometry on a D8 Bruker diffractometer equipped with a Cu Kα primary beam and a Vantec position sensitive detector. Collection conditions were: 3-60° in 2θ, 0.04° step size, 2.4 seconds/step, divergence slits 0.2 mm.
DOI: 10.1594/pangaea.947107
title: Porewater chemistry from sediment core CDISK4-5 from the North Pacific CDisK-IV expedition

description: Samples were collected at six oceanographic stations during cruise CDisK-IV on board RV Kilo Moana from Hawaii to Alaska in August 2017 using an 8-barrel multi-corer. Sediment porewaters were extracted in a cold room, using Rhizon samplers inserted into pre-drilled holes in the core liner, from two cores with undisturbed sediment-water interfaces, from each multi-corer cast. Pre-treatment of the Rhizon samplers and the sampling protocol was different for each of the two cores. Rhizons inserted to core number 1 from each cast were new from the box, and the samples were used for nutrient and major element analyses. A 20 ml syringe was filled from each Rhizon, inserted dry, and the extracted water was filtered again via a 0.45 µm filter. Rhizons inserted to core number 2 were acid-cleaned with 0.001 N HNO3 for at least 24 hours, rinsed with de-ionised water (Milli-Q, Millipore) and kept in de-ionised water until use. The first 1 mL extracted was discarded, and the next 2 mL were stored in acid cleaned polypropylene (PP) vials. These samples, destined for analyses of trace and major elements, were acidified with HNO3 to final acid concentration of 0.035 M.
DOI: 10.13130/rd_unimi/n9enq4/0uqk2z
title: force_disp_init-185.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.947105
title: Porewater chemistry from sediment core CDISK4-3 from the North Pacific CDisK-IV expedition

description: Samples were collected at six oceanographic stations during cruise CDisK-IV on board RV Kilo Moana from Hawaii to Alaska in August 2017 using an 8-barrel multi-corer. Sediment porewaters were extracted in a cold room, using Rhizon samplers inserted into pre-drilled holes in the core liner, from two cores with undisturbed sediment-water interfaces, from each multi-corer cast. Pre-treatment of the Rhizon samplers and the sampling protocol was different for each of the two cores. Rhizons inserted to core number 1 from each cast were new from the box, and the samples were used for nutrient and major element analyses. A 20 ml syringe was filled from each Rhizon, inserted dry, and the extracted water was filtered again via a 0.45 µm filter. Rhizons inserted to core number 2 were acid-cleaned with 0.001 N HNO3 for at least 24 hours, rinsed with de-ionised water (Milli-Q, Millipore) and kept in de-ionised water until use. The first 1 mL extracted was discarded, and the next 2 mL were stored in acid cleaned polypropylene (PP) vials. These samples, destined for analyses of trace and major elements, were acidified with HNO3 to final acid concentration of 0.035 M.
DOI: 10.13130/rd_unimi/n9enq4/qldkcb
title: nodes_final-153.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/zwpmed
title: edges_init-157.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.931023
title: Stable oxygen isotopes of Neogloboquadrina pachyderama of sediment core MD12-3394
DOI: 10.1594/pangaea.933417
title: Ice mass balance data PS81/506-1 from Weddell Sea, Antarctica, 2013-2014

description: Ice mass balance (IMB) buoy data PS81/506 from Weddell Sea, Antarctica, 2013-2014. The buoy was deployed together with an automatic weather station buoy (see under related) on sea ice station PS81/506 from Research Vessel Polarstern in the Antarctic Weddell Sea in austral winter 2013 (cruise leg ANT-XXIX/6, AWECS campaign). The IMB buoy provides data between 2013-07-13T12:15:00 and 2014-02-07T01:17:00. The IMB buoy was kindly provided by the Scottish Association for Marine Science (SAMS). The IMB buoy consisted of a thermistor string of 5 m length, with a 2 cm sensor spacing. Interfaces were determined by hand. The bottom interface was determined from the existence of a knee in the temperature profile where apparent, combined with the heating cycle data. Both the amount of heating, and the ratio of heating at 60s over heating at 30s were used. This is very accurate up until ~day 300, and it is probably about +/- 4 cm after that. The snow interface was determined by the above, and looking at the knee in the temperature profile for each of the four temperature profiles during the day. This is more difficult to pick out, so accuracy here is maybe a few cm. Note flooding occurred at ~day 290 (probably up to freeboard level on ~day 278). The flooding interface was determined from day 250 on, and based mostly on the heating cycle. Clear surface snow melt on ~day 330, and IMB goes isothermal and warm on ~day 350. It may be that the thermistor string was pulled out of the ice, since it is warm at the sensors that were in the ocean.
DOI: 10.13130/rd_unimi/n9enq4/bppbku
title: force_disp_final-164.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/tqkojv
title: opt-196.txt

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/ipthb7
title: edge_data_final-176.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/hwwtpx
title: edges_init-174.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.955863
title: Tropical Atlantic bamboo corals bomb radiocarbon and nitrogen isotopes

description: Deep-sea bamboo corals (family Isididae) have been used as archives for reconstructing changes in the past ocean. However, uncertainties remain regarding the interpretation of geochemical signals from their organic nodes, specifically the water depth of the signals recorded by the coral. Here we explore this question by measuring 14C and 15N compositions of six bamboo corals collected from the central and eastern tropical Atlantic between 700 m and 2000 m water depth. By comparing coral 14C to measured seawater data, regional shallow-water coral records and climate-model outputs, we find contrasting results. Our bamboo coral 14C results from the eastern tropical Atlantic support previous studies that suggest organic node carbon is sourced primarily from the upper mixed layer of the ocean. By contrast, bamboo corals from the oligotrophic central Atlantic suggests that organic node radiocarbon records the Δ14C of the deep chlorophyll maximum layer rather than the surface mixed layer. Combined with δ15N data, this observation suggests that sinking and/or ambient zooplankton supported by phytoplankton from the deep chlorophyll maximum layer can contribute a significant proportion of the diet of bamboo corals. These results suggest that the age models of bamboo corals residing beneath oligotrophic regions should not be determined from mixed layer Δ14C. Radiocarbon analyses were conducted at the Bristol Radiocarbon Accelerator Mass Spectrometry (BRAMS) Facility at the University of Bristol following the procedure of Knowles et al. (2019, doi:10.1017/RDC.2019.28). δ15N were gently ground to homogenise, weighed out into 0.5 - 1 mg aliquots into 3.5 × 5 mm tin capsules (part #041060) from Costech Analytical Technologies, Inc and sent out for the δ15N analyses to the Center for Stable Isotope Biogeochemistry (CSIB), University of California Berkeley.
DOI: 10.13130/rd_unimi/n9enq4/mquwxm
title: edges_final-197.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/pwpbmb
title: edge_data_final-179.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.936128
title: Geostatistical analyses of IODP Hole 339-U1389A

description: Shipboard core description and thickness measurements were used as base for the current data. These were verified and, where necessary, minor corrections made during re-logging of all cores used for this study at the Bremen Core Repository. Any modifications to the shipboard core logs were validated by making and examining a further 100 smear slides to measure composition and grain size.
DOI: 10.1594/pangaea.937298
title: Carbonate free bulk analysis from IODP Core 339-U1389A-11H

description: Grain-size statistical parameters were calculated using Gradistat software (Blott and Pye, 2001) and based on the geometric graphical method (Folk and Ward, 1957). The same samples were then treated to remove the biogenic carbonate and siliceous components, and re-analysed with the laser micro-granulometer, with a view to determining the sortable silt component.
DOI: 10.13130/rd_unimi/n9enq4/zs5jpk
title: force_disp_final-159.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.937299
title: Grain size analysis from IODP Core 339-U1389A-11H

description: A total of 96 samples were analysed for bulk grain size from the two selected sequences, using a Malvern Mastersizer laser micro-granulometer (Malvern Panalytical) at the University of Bordeaux, France. The instrument is designed to measure the grain size spectrum ranging from 0.02 to 2000 μm (clay to sand).
DOI: 10.13130/rd_unimi/n9enq4/nqwfxm
title: force_disp_init-150.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.936125
title: Geostatistical analyses of IODP Hole 339-U1386B

description: Shipboard core description and thickness measurements were used as base for the current data. These were verified and, where necessary, minor corrections made during re-logging of all cores used for this study at the Bremen Core Repository. Any modifications to the shipboard core logs were validated by making and examining a further 100 smear slides to measure composition and grain size.
DOI: 10.1594/pangaea.950773
title: Bulk stable carbon and oxygen isotope data of ODP Site 198-1209 (S1)
DOI: 10.13130/rd_unimi/n9enq4/t5ejfm
title: force_disp_init-155.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/xl18ba
title: edges_final-199.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.936130
title: Geostatistical analyses of IODP Hole 339-U1389C

description: Shipboard core description and thickness measurements were used as base for the current data. These were verified and, where necessary, minor corrections made during re-logging of all cores used for this study at the Bremen Core Repository. Any modifications to the shipboard core logs were validated by making and examining a further 100 smear slides to measure composition and grain size.
DOI: 10.1594/pangaea.937300
title: Carbonate free grain size analysis from IODP Core 339-U1389A-11H

description: A total of 96 samples were analysed for bulk grain size from the two selected sequences, using a Malvern Mastersizer laser micro-granulometer (Malvern Panalytical) at the University of Bordeaux, France. The instrument is designed to measure the grain size spectrum ranging from 0.02 to 2000 μm (clay to sand).
DOI: 10.13130/rd_unimi/n9enq4/tnktta
title: nodes_final-166.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.937301
title: Isotope analysis from IODP Core 339-U1389A-11H

description: A further 48 samples were analysed for their organic carbon (TOC), CaCO~3~ and stable isotopic contents, using Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS). These analyses were carried out at the Iso-Analytical labs, Wales. Nine samples received duplicate analysis, one sample was duplicated every 5 runs, indicating possible analytical error within &lt;0.2%o for the δ13Ccarb and &lt;0.15%o for both the δ13Corg and δ18O. Carbonate contents were extracted through acidification of the sample with 2M hydrochloric acid, drying and weighing the sample to calculate the weight loss. Total ion beam data was used to determine the carbon percent of the acid washed samples. The weight loss data recorded at the acid washing stage was used to calculate the TOC% values from the carbon percentages.The reference material used during δ 13Corg analysis were IA-R001 (δ13CV-PDB = -26.43 ‰), IA-R001, IA-R005 (δ13CV-PDB = -26.03 ‰) and IA-R006 (δ13CV-PDB = -11.64 ‰). Meanwhile, reference standards used for the carbonate isotopes were: IA-R022 (δ13CV-PDB = -28.63 ‰ and δ18OV-PDB = -22.69 ‰), NBS-18 (δ13CV-PDB = -5.01 ‰ and δ18OV-PDB = -23.20 ‰), IA-R066 (δ13CV-PDB = +2.33 ‰ and δ18OV-PDB = -1.52 ‰), IAEA-603 (δ13CV-PDB = +2.46 ‰ and δ18OV-PDB = -2.37 ‰) and IA-R040 (δ13CV-PDB = -0.72 ‰ and δ18OV-PDB = -17.08 ‰).
DOI: 10.1594/pangaea.937306
title: Sinking velocity of silt and sand from IODP Core 339-U1389A-25X
DOI: 10.13130/rd_unimi/n9enq4/0yumr3
title: edges_final-184.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/hg4hpq
title: opt-198.txt

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.936129
title: Geostatistical analyses of IODP Hole 339-U1389B

description: Shipboard core description and thickness measurements were used as base for the current data. These were verified and, where necessary, minor corrections made during re-logging of all cores used for this study at the Bremen Core Repository. Any modifications to the shipboard core logs were validated by making and examining a further 100 smear slides to measure composition and grain size.
DOI: 10.1594/pangaea.936131
title: Geostatistical analyses of IODP Hole 339-U1389D

description: Shipboard core description and thickness measurements were used as base for the current data. These were verified and, where necessary, minor corrections made during re-logging of all cores used for this study at the Bremen Core Repository. Any modifications to the shipboard core logs were validated by making and examining a further 100 smear slides to measure composition and grain size.
DOI: 10.13130/rd_unimi/n9enq4/bvp429
title: opt-167.txt

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.938502
title: Raw trace element data of the Smoky Hollow (SH#1) core in south central Utah

description: Trace element data from the Smoky Hollow #1 core drilled across the Cenomanian-Turonian boundary near Big Water, south-central Utah in 2014. Ground bulk samples were analyzed via Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) in the Laboratory for Isotopes and Metals in the Environment (LIME) at The Pennsylvania State University. Results are given with both raw (bulk) and normalized to Zr to correct for detrital input.
DOI: 10.1594/pangaea.938506
title: Zirconium normalized trace element data of the Smoky Hollow (SH#1) core in south central Utah

description: Trace element data from the Smoky Hollow #1 core drilled across the Cenomanian-Turonian boundary near Big Water, south-central Utah in 2014. Ground bulk samples were analyzed via Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) in the Laboratory for Isotopes and Metals in the Environment (LIME) at The Pennsylvania State University. Results are given with both raw (bulk) and normalized to Zr to correct for detrital input.
DOI: 10.13130/rd_unimi/n9enq4/wtc0zv
title: edge_data_final-189.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.945412
title: Beryllium-7 concentrations in snow during the MOSAiC expedition

description: For bulk snow samples, we collected the full snow column (snow surface to ice surface). First, the depth of snow was measured with a ruler. Next, a measured area of the snow surface was outlined with a stick or shovel. Then all snow (down to the ice surface) within the marked area was removed with a plastic ice scoop and placed in a plastic bucket. For snow profiles, we collected samples at different depth intervals within the snow column. After measuring the depth of snow and marking a measured area on the snow surface, the first layer of snow was carefully removed with a plastic flat bottomed ice scoop and placed in a bucket. The depth of the remaining snow was then measured with a ruler before collecting the next layer of snow. This process was repeated until the ice surface was reached. We sampled two to five layers per profile.All snow and frost flower samples were processed and analyzed using the same procedure. First, we added the following solutions: 5 ml hydrochloric acid, 2 ml iron chloride solution, and 1 ml of 1000 ppm stable beryllium AA standard (chemical yield tracer). After melting at room temperature, the water volume was measured using a graduated cylinder. Next, the sample was precipitated using ammonium hydroxide. After allowing the precipitate to settle, excess water was removed by decanting and centrifugation. Finally, the precipitate was transferred to petri dishes and placed in an oven for drying. The dried samples in petri dishes were counted by gamma spectroscopy. After gamma counting, samples were brought up to 1 liter in 1% nitric acid solution. The beryllium concentrations were then determined using a Perkin Elmer Optima 7300 DV ICP-OES. Our chemical yields averaged over 80%.
DOI: 10.13130/rd_unimi/n9enq4/nqfiz1
title: nodes_init-164.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/zynxlh
title: opt-199.txt

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.965572
title: SediGraph particle size analyzer output (n=329 .txt files) from IODP Sites 342-U1406 and 342-U1411
DOI: 10.1594/pangaea.967343
title: Age Model of ODP Site 145-883

description: Here we present a new astronomically tuned age model for the late Pliocene section of ODP site 883. The astronomically tuned age model was developed by correlation of benthic foraminiferal δ18O (3000-3385 Ka) to the δ18O probabilistic stack and the 883 GRAPE WBD composite (2.841-3.0 Ma & 3.385-3.465 Ma) to the nearby ODP 882 carbonate weight %, where the age model is based on tuning GRAPE WBD to calculated solar insolation.
DOI: 10.13130/rd_unimi/n9enq4/glii1c
title: nodes_final-172.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.945408
title: Beryllium-7 concentrations in ice during the MOSAiC expedition

description: Ice cores were collected using a Kovacs Mark II 9 cm diameter corer (area = 63.62 cm2). We generally took three ice cores (total sample area = 190.85 cm2, 11 samples) from a site and combined them into one sample. Snow was swept away from the ice surface before drilling through the ice column. Once recovered, cores were laid out on a cradle to measure length (ice thickness) and then put in a plastic sleeve before being transported to Polarstern. After placing the cores in buckets, we added the following solutions: 5 ml hydrochloric acid, 2 ml iron chloride solution, and 1 ml of 1000 ppm stable beryllium AA standard (chemical yield tracer). After melting at room temperature, the water volume was measured using a graduated cylinder. Next, the sample was precipitated using ammonium hydroxide. After allowing the precipitate to settle, excess water was removed by decanting and centrifugation. The samples were transferred to petri dishes and placed in an oven for drying, and then analyzed with a high purity germanium (HPGe) gamma detector (Be-7 peak at 478 keV). The detector is calibrated by using a commercially prepared mixed isotope solution added to iron hydroxide powder in a petri dish (same geometry as samples). After gamma counting, samples were brought up to 1 liter in 1% nitric acid solution. The beryllium concentrations (for chemical yield determination) were then obtained using a Perkin Elmer Optima 7300 DV ICP-OES. Our chemical yields averaged over 80%.
DOI: 10.13130/rd_unimi/n9enq4/8nr7tu
title: edge_data_final-153.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/9mbqyb
title: edges_final-163.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.974058
title: Age model of ODP Hole 130-806B
DOI: 10.1594/pangaea.974097
title: Age model and accumulation rates of IODP Site 321-U1338
DOI: 10.13130/rd_unimi/n9enq4/1y952r
title: force_disp_init-156.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.950424
title: Geochemical and sedimentological data of the JPC42 sediment core from Wide Channel, Chile

description: Organic geochemical and sedimentological data analyzed at a 10 to 20 cm interval on the JPC42 and KC41 cores including total organic carbon content, stable carbon isotopes, marine organic carbon content, calcium carbonate, grain-size mode, and ice-rafted debris (particles &gt;150 µm).
DOI: 10.1594/pangaea.950426
title: XRF core scanner geochemistry, PC1 scores and detrended PC1 scores of sediment core JPC42 from Wide Channel, Chile

description: Inorganic geochemical data of the JPC42 and KC41 cores obtained by ITRAX XRF core scanning (Cox Analytical Instruments) at the Woods Hole Oceanographic Institution, PC1 scores, and detrended PC1 scores, at a resolution of 2 mm. The XRF scanner was operated with 20 s scan times using a Mo X- Ray tube set to 30 kV and 45 mA. Elemental variations are expressed in terms of centered log-ratios (clr) to avoid dilution effects and to overcome the closed-sum effect and non-negative nature of compositional data (Weltje et al., 2015, doi:10.1007/978-94-017-9849-5_21). The table contains both the raw (cps; counts per second) and processed clr (dimensionless) data. Principal Component Analysis (PCA) was conducted with XLSTAT v2016 and used to examine the covariance within the XRF core scanner data. Increasing PC1 scores are interpreted to represent a relative increase in terrestrial sediment supply, and vice versa.
DOI: 10.13130/rd_unimi/n9enq4/zkjtfg
title: force_disp_init-183.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.974059
title: Age-Depth profile of ODP Hole 130-807A
DOI: 10.1594/pangaea.974060
title: Age-Depth profile of ODP Hole 145-884B
DOI: 10.13130/rd_unimi/n9enq4/d4x2ch
title: force_disp_final-197.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.13130/rd_unimi/n9enq4/jr9yoy
title: force_disp_final-195.dat

description: 250729_SIMULATION_DATA/TENS-N_1.zip
DOI: 10.1594/pangaea.950819
title: X-ray fluorescence data of ODP Site 198-1209 (S4)