cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.194752
title: Documentation of sediment core BOFS17K

description: University of Cambridge Department of Earth Sciences. Authorship was originally "BODC" and was changed by request of the BODC.
DOI: 10.1594/pangaea.197861
title: Nutrients measured on water bottle samples at station DI184_11880#13
DOI: 10.1594/pangaea.194755
title: Documentation of sediment core BOFS4K

description: University of Cambridge Department of Earth Sciences. Authorship was originally "BODC" and was changed by request of the BODC.
DOI: 10.1594/pangaea.194759
title: Documentation of sediment core BOFS8K

description: University of Cambridge Department of Earth Sciences. Authorship was originally "BODC" and was changed by request of the BODC.
DOI: 10.1594/pangaea.194760
title: Documentation of sediment core BOFS9K

description: University of Cambridge Department of Earth Sciences. Authorship was originally "BODC" and was changed by request of the BODC.
DOI: 10.1594/pangaea.197078
title: Aluminium measured on non-toxic water pump samples DI184_11888#1

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.838427
title: (Exp. 13) Artificial oxygen fluxes measured by the eddy correlation method using stirring-sensitive oxygen microsensor in a flume experiment

description: Flume experiments were conducted in February 2013 at the Institute for Environmental Sciences, University of Koblenz-Landau Landau. Experiments were performed in a closed oval-shaped acrylic glass flume with cross-sectional width of 4 cm and height of 10 cm and total length of 54 cm. The fluid flow was induced by a propeller driven by a motor and mean flow velocities of up to 20 cm s-1 were generated by applying voltages between 0 V and 4 V DC. The flume was completely sealed with an acrylic glass cover. Oxygen sensors were inserted through rubber seal fittings and allowed positioning the sensors with inclinations to the main flow direction of ~60°, ~95° and ~135°. A Clark type electrochemical O2 microsensor with a low stirring sensitivity (0.7%) was tested and a fast-responding needle-type O2 optode (PyroScience GmbH, Germany) was used as reference as optodes should not be stirring sensitive. Instantaneous three-dimensional flow velocities were measured at 7.4 Hz using stereoscopic particle image velocimetry (PIV). The velocity at the sensor tip was extracted. The correlation of the fluctuating O2 sensor signals and the fluctuating velocities was quantified with a cross-correlation analysis. A significant cross-correlation is equivalent to a significant artificial flux. For a total of 18 experiments the flow velocity was adjusted between 1.7 and 19.2 cm s-1, and 3 different orientations of the electrochemical sensor were tested with inclination angles of ~60°, ~95° and ~135° with respect to the main flow direction. In experiments 16-18, wavelike flow was induced, whereas in all other experiments the motor was driven by constant voltages.
DOI: 10.1594/pangaea.838415
title: (Exp. 14op) Artificial oxygen fluxes measured by the eddy correlation method using oxygen optodes in a flume experiment

description: Flume experiments were conducted in February 2013 at the Institute for Environmental Sciences, University of Koblenz-Landau Landau. Experiments were performed in a closed oval-shaped acrylic glass flume with cross-sectional width of 4 cm and height of 10 cm and total length of 54 cm. The fluid flow was induced by a propeller driven by a motor and mean flow velocities of up to 20 cm s-1 were generated by applying voltages between 0 V and 4 V DC. The flume was completely sealed with an acrylic glass cover. Oxygen sensors were inserted through rubber seal fittings and allowed positioning the sensors with inclinations to the main flow direction of ~60°, ~95° and ~135°. A Clark type electrochemical O2 microsensor with a low stirring sensitivity (0.7%) was tested and a fast-responding needle-type O2 optode (PyroScience GmbH, Germany) was used as reference as optodes should not be stirring sensitive. Instantaneous three-dimensional flow velocities were measured at 7.4 Hz using stereoscopic particle image velocimetry (PIV). The velocity at the sensor tip was extracted. The correlation of the fluctuating O2 sensor signals and the fluctuating velocities was quantified with a cross-correlation analysis. A significant cross-correlation is equivalent to a significant artificial flux. For a total of 18 experiments the flow velocity was adjusted between 1.7 and 19.2 cm s-1, and 3 different orientations of the electrochemical sensor were tested with inclination angles of ~60°, ~95° and ~135° with respect to the main flow direction. In experiments 16-18, wavelike flow was induced, whereas in all other experiments the motor was driven by constant voltages. In 7 experiments, O2 was additionally measured by optodes. Although performed simultaneously with the electrochemical sensor, optode measurements are listed as separate experiments (denoted by the attached 'op' in the filename), because the velocity time series was extracted at the optode tip, located at a different position in the flume.
DOI: 10.1594/pangaea.838417
title: (Exp. 12op) Artificial oxygen fluxes measured by the eddy correlation method using oxygen optodes in a flume experiment

description: Flume experiments were conducted in February 2013 at the Institute for Environmental Sciences, University of Koblenz-Landau Landau. Experiments were performed in a closed oval-shaped acrylic glass flume with cross-sectional width of 4 cm and height of 10 cm and total length of 54 cm. The fluid flow was induced by a propeller driven by a motor and mean flow velocities of up to 20 cm s-1 were generated by applying voltages between 0 V and 4 V DC. The flume was completely sealed with an acrylic glass cover. Oxygen sensors were inserted through rubber seal fittings and allowed positioning the sensors with inclinations to the main flow direction of ~60°, ~95° and ~135°. A Clark type electrochemical O2 microsensor with a low stirring sensitivity (0.7%) was tested and a fast-responding needle-type O2 optode (PyroScience GmbH, Germany) was used as reference as optodes should not be stirring sensitive. Instantaneous three-dimensional flow velocities were measured at 7.4 Hz using stereoscopic particle image velocimetry (PIV). The velocity at the sensor tip was extracted. The correlation of the fluctuating O2 sensor signals and the fluctuating velocities was quantified with a cross-correlation analysis. A significant cross-correlation is equivalent to a significant artificial flux. For a total of 18 experiments the flow velocity was adjusted between 1.7 and 19.2 cm s-1, and 3 different orientations of the electrochemical sensor were tested with inclination angles of ~60°, ~95° and ~135° with respect to the main flow direction. In experiments 16-18, wavelike flow was induced, whereas in all other experiments the motor was driven by constant voltages. In 7 experiments, O2 was additionally measured by optodes. Although performed simultaneously with the electrochemical sensor, optode measurements are listed as separate experiments (denoted by the attached 'op' in the filename), because the velocity time series was extracted at the optode tip, located at a different position in the flume.
DOI: 10.1594/pangaea.838433
title: (Exp. 7) Artificial oxygen fluxes measured by the eddy correlation method using stirring-sensitive oxygen microsensor in a flume experiment

description: Flume experiments were conducted in February 2013 at the Institute for Environmental Sciences, University of Koblenz-Landau Landau. Experiments were performed in a closed oval-shaped acrylic glass flume with cross-sectional width of 4 cm and height of 10 cm and total length of 54 cm. The fluid flow was induced by a propeller driven by a motor and mean flow velocities of up to 20 cm s-1 were generated by applying voltages between 0 V and 4 V DC. The flume was completely sealed with an acrylic glass cover. Oxygen sensors were inserted through rubber seal fittings and allowed positioning the sensors with inclinations to the main flow direction of ~60°, ~95° and ~135°. A Clark type electrochemical O2 microsensor with a low stirring sensitivity (0.7%) was tested and a fast-responding needle-type O2 optode (PyroScience GmbH, Germany) was used as reference as optodes should not be stirring sensitive. Instantaneous three-dimensional flow velocities were measured at 7.4 Hz using stereoscopic particle image velocimetry (PIV). The velocity at the sensor tip was extracted. The correlation of the fluctuating O2 sensor signals and the fluctuating velocities was quantified with a cross-correlation analysis. A significant cross-correlation is equivalent to a significant artificial flux. For a total of 18 experiments the flow velocity was adjusted between 1.7 and 19.2 cm s-1, and 3 different orientations of the electrochemical sensor were tested with inclination angles of ~60°, ~95° and ~135° with respect to the main flow direction. In experiments 16-18, wavelike flow was induced, whereas in all other experiments the motor was driven by constant voltages.
DOI: 10.1594/pangaea.194754
title: Documentation of sediment core BOFS3K

description: University of Cambridge Department of Earth Sciences. Authorship was originally "BODC" and was changed by request of the BODC.
DOI: 10.1594/pangaea.197096
title: Aluminium measured on non-toxic water pump samples DI184_11905#4

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.197162
title: Aluminium measured on non-toxic water pump samples DI184_TLS6

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.831611
title: (Table 2) Age model of sediment core RAPiD-15-4P

description: NGRIP age is GICC05 timescale, kiloyears before A.D. 2000. Error in NGRIP age from Rasmussen et al. (2006, doi:10.1029/2005JD006079). Error in RAPiD-15-4P includes NGRIP error and estimates on the accuracy of tying percent Neogloboquadrina pachyderma s to NGRIP, which primarily depends upon bioturbation and sedimentation rates.
DOI: 10.1594/pangaea.199533
title: Oxygen saturation of sediment core BOFS28/1M-2

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.194826
title: (Table 3) Age model of sediment core BOFS9K
DOI: 10.1594/pangaea.194828
title: Carbon and nitrogen of sediment core BOFS11K

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.199535
title: Oxygen saturation of sediment core BOFS29/2M-1

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.839126
title: (Table 2) Nd and PB isotope record of the carbonate-free clay fraction of sediment core MD99-2227

description: Clay size &lt;2 µm.
DOI: 10.1594/pangaea.197076
title: Aluminium measured on non-toxic water pump samples DI184_11885#8

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.199527
title: Oxygen saturation of sediment core BOFS26/2M-2

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.199530
title: Oxygen saturation of sediment core BOFS27/5M-2

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.199906
title: Sedimentology of core BOFS11K

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.832858
title: (Table S2) U, Th, 230Th, and 231Pa concentrations and U isotopic composition for sediment core WIND28K samples

description: The age of the samples is derived from d18O stratigraphy augmented with six AMS radiocarbon dates (McCave et al., 2005).
DOI: 10.1594/pangaea.856564
title: Bottom water oxygen reconstructions Iberian Margin sediment core MD95-2042 between 0 and 150,000 years BP

description: During the last and penultimate glacial maxima, atmospheric CO2 concentrations were lower than present, possibly in part because of increased storage of respired carbon in the deep oceans (Sigman and Boyle, 2000, doi:10.1038/35038000). The amount of respired carbon present in a water mass can be calculated from its oxygen content through apparent oxygen utilization; the oxygen content can in turn be calculated from the carbon isotope gradient within the sediment column (McCorkle and Emerson, 1988, doi:10.1016/0016-7037(88)90270-0). Here we analyse the shells of benthic foraminifera occurring at the sediment surface and the oxic/anoxic interface on the Portuguese Margin to reconstruct the carbon isotope gradient and hence bottom-water oxygenation over the past 150,000 years. We find that bottom-water oxygen concentrations were 45 and 65 µmol/kg lower than present during the last and penultimate glacial maxima, respectively. We calculate that concentrations of remineralized organic carbon were at least twice as high as today during the glacial maxima. We attribute these changes to decreased ventilation linked to a reorganization of ocean circulation (McManus et al., 2004, doi:10.1038/nature02494) and a strengthened global biological pump (Kohfeld et al., 2005, doi:10.1126/science.1105375). If the respired carbon pool was of a similar size throughout the entire glacial deep Atlantic basin, then this sink could account for 15 and 20 per cent of the glacial PCO2 drawdown during the last and penultimate glacial maxima.
description: Supplement to: Hoogakker, Babette A A; Elderfield, Henry; Schmiedl, Gerhard; McCave, I Nicholas; Rickaby, Rosalind E M (2015): Glacial–interglacial changes in bottom-water oxygen content on the Portuguese margin. Nature Geoscience, 8(1), 40-43
DOI: 10.1594/pangaea.199922
title: Species counts of benthic foraminifera of sediment core BOFS5K

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.821230
title: Sortable silt mean grain size of sediment core PS67/224-1

description: Ages (ka BP) were based on correlation of downcore magnetic susceptibility records to the EPICA dust record as described by Pugh, R.S. et al. 2009, doi:10.1016/j.epsl.2009.04.016.Silt-Mean, sortable is the 'Sortable Silt' mean grain size, the mean size of the terrigenous fraction between 10 and 63 µm as described by McCave, I.N. et al. 1995, doi:10.1029/94PA03039.
DOI: 10.1594/pangaea.821227
title: Sortable silt mean grain size of sediment core PS67/197-1

description: Ages (ka BP) were based on correlation of downcore magnetic susceptibility records to the EPICA dust record as described by Pugh, R.S. et al. 2009, doi:10.1016/j.epsl.2009.04.016.Silt-Mean, sortable is the 'Sortable Silt' mean grain size, the mean size of the terrigenous fraction between 10 and 63 µm as described by McCave, I.N. et al. 1995, doi:10.1029/94PA03039.
DOI: 10.1594/pangaea.821224
title: Sortable silt mean grain size of sediment core PS2319-1

description: Ages (ka BP) were based on correlation of downcore magnetic susceptibility records to the EPICA dust record as described by Pugh, R.S. et al. 2009, doi:10.1016/j.epsl.2009.04.016.Silt-Mean, sortable is the 'Sortable Silt' mean grain size, the mean size of the terrigenous fraction between 10 and 63 µm as described by McCave, I.N. et al. 1995, doi:10.1029/94PA03039.
DOI: 10.1594/pangaea.821226
title: Sortable silt mean grain size of sediment core PS67/186-1

description: Ages (ka BP) were based on correlation of downcore magnetic susceptibility records to the EPICA dust record as described by Pugh, R.S. et al. 2009, doi:10.1016/j.epsl.2009.04.016.Silt-Mean, sortable is the 'Sortable Silt' mean grain size, the mean size of the terrigenous fraction between 10 and 63 µm as described by McCave, I.N. et al. 1995, doi:10.1029/94PA03039.
DOI: 10.1594/pangaea.217650
title: Stable isotopes of sediment core CD84_2K
DOI: 10.1594/pangaea.899751
title: Carbon stable isotopes of Globigerina bulloides from 19 sediment cores in the southwest Pacific
DOI: 10.1594/pangaea.217657
title: Radio nuclides in surface sediment
DOI: 10.1594/pangaea.199849
title: Dated ages and sedimentation rates of sediment core BOFS6K

description: University of Cambridge Department of Earth Sciences. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.815899
title: (Table 2) Major and trace element concentrations of Fe-Mn oxyhydroxide samples of ODP Hole 172-1060A
DOI: 10.1594/pangaea.196945
title: Physical oceanography during DISCOVERY cruise D184

description: University of Cambridge Department of Earth Sciences. Authorship was originally "BODC" and was changed by request of the BODC.
DOI: 10.1594/pangaea.829687
title: (Table S4) Geochemistry of sediment core MD99-2254
DOI: 10.1594/pangaea.194824
title: (Table 3) Age model of sediment core BOFS7K
DOI: 10.1594/pangaea.807243
title: Suspended particulate material concentration measured on water bottle samples during Charles Darwin cruise CD84
DOI: 10.1594/pangaea.780220
title: (Table T1) Fossil, magnetic reversal, and additional datums of ODP Leg 189 sites

description: The aim of this study is to assess the viability of age models based on shipboard and postcruise bio- and magnetostratigraphic datums, as of August 2002, using independently derived control points. The control points are based on matching between-site trends in stable isotope records, carbonate content, and weight percent sand. Site 1170 on the western South Tasman Rise has a good record of magnetic reversals, which suggests a hiatus prior to ~30 Ma (early Oligocene) relating to the Marshall Paraconformity, followed by strongly reduced sedimentation in the late Oligocene. Preservation of the Mi-1 event at this site is evidence for continued sedimentation across the Oligocene/Miocene boundary. Correlation of the Mi-1a event to the record at Site 1090 on the Agulhas Ridge confirms the usefulness of the magnetostratigraphic record at this site. However, the timing of the Mi-1 event at Site 1170 appears different from that at Site 1090, but is constrained by four magnetic reversals. At Site 1171 additional control points are consistent with biostratigraphic datums. Site 1172 is marked by the lowest sedimentation rates of all sites. Additional control points before 22 Ma are more consistent with the biostratigraphy than with the magnetostratigraphy. At Site 1168 we suggest that the magnetic reversal record MR1 provides the best match with the biostratigraphy and additional control points, as well as changes in the biogenic and lithogenic composition of the sedimentary record.The late Eocene/early Oligocene Marshall Paraconformity (base = ~33 Ma at the type location) is evident at Sites 1170-1172, and low sedimentation rates occur at the two eastern sites (1171 and 1172) in the early Oligocene. A change in sedimentation just after the early-late Oligocene transition appears to reduce rates at Site 1170 and strongly affect the biogenic composition of sediments at Site 1168, which is less exposed to the flow of the Antarctic Circumpolar Current. The Oligocene-Miocene transition finally is marked by reduced sedimentation at Sites 1170-1172, but a relatively stronger decrease is noticeable at Site 1168. Above this boundary sedimentation rates are identical at Sites 1168 and 1170 above 21.5 Ma and at Sites 1171 and 1172 above 17 Ma.
description: Sediment depth is given in mbsf. Ages are based on Cande and Kent (1992, doi:10.1029/92JB01202; 1995, doi:10.1029/94JB03098) .
description: Supplement to: Pfuhl, Helen A; McCave, I Nicholas (2003): Integrated age models for the early Oligocene-early Miocene, Sites 1168 and 1170-1172. In: Exon, NF; Kennett, JP; Malone, MJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 189, 1-21
DOI: 10.1594/pangaea.821775
title: (Table 1) Hydrography of estimated Neogloboquadrina pachyderma (s) habitat depth in the North Atlantic

description: Habitat depths (55 m at GS06-144-15MCA and GS06-144-16MCA, and 35 m at GS06-144-19MCA) are assigned at sigma t = 27.65 kg/m**3, according to Simstich et al. (2003)
DOI: 10.1594/pangaea.217656
title: Radio nuclides of sediment core CD94_9B
DOI: 10.1594/pangaea.838436
title: (Exp. 4) Artificial oxygen fluxes measured by the eddy correlation method using stirring-sensitive oxygen microsensor in a flume experiment

description: Flume experiments were conducted in February 2013 at the Institute for Environmental Sciences, University of Koblenz-Landau Landau. Experiments were performed in a closed oval-shaped acrylic glass flume with cross-sectional width of 4 cm and height of 10 cm and total length of 54 cm. The fluid flow was induced by a propeller driven by a motor and mean flow velocities of up to 20 cm s-1 were generated by applying voltages between 0 V and 4 V DC. The flume was completely sealed with an acrylic glass cover. Oxygen sensors were inserted through rubber seal fittings and allowed positioning the sensors with inclinations to the main flow direction of ~60°, ~95° and ~135°. A Clark type electrochemical O2 microsensor with a low stirring sensitivity (0.7%) was tested and a fast-responding needle-type O2 optode (PyroScience GmbH, Germany) was used as reference as optodes should not be stirring sensitive. Instantaneous three-dimensional flow velocities were measured at 7.4 Hz using stereoscopic particle image velocimetry (PIV). The velocity at the sensor tip was extracted. The correlation of the fluctuating O2 sensor signals and the fluctuating velocities was quantified with a cross-correlation analysis. A significant cross-correlation is equivalent to a significant artificial flux. For a total of 18 experiments the flow velocity was adjusted between 1.7 and 19.2 cm s-1, and 3 different orientations of the electrochemical sensor were tested with inclination angles of ~60°, ~95° and ~135° with respect to the main flow direction. In experiments 16-18, wavelike flow was induced, whereas in all other experiments the motor was driven by constant voltages.