cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.927200
title: Grab samples offshore Helgoland (German Bight)
DOI: 10.1594/pangaea.893210
title: δ¹³C and δ¹⁸O isotopes from Foraminifera of sediment core FR1/94-GC3 from the East Tasman Plateau, Australia
DOI: 10.1594/pangaea.762802
title: (Appendix 3) Magnetic polarity and characteristic directions of ODP Hole 123-766A

description: Sediment depth is given in mbsf. Characteristic directions and mean intensities are computed from least-squares analysis of the indicated suites of selected demagnetization steps. Selected steps are alternating field demagnetization levels with some additional thermal steps. "Org" indicates that the origin of the vector plot was included as a selected point for the least-squares computation due to irregular pattern of demagnetization vectors; "Tied" indicates that the least-squares vector was constrained to pass through the origin on the vector plots, thereby producing an average of the selected demagnetization steps - such "Org" and "Tied" computations are given a lower quality rating.
DOI: 10.1594/pangaea.619050
title: Description of soil profile LD02-BS-4 (Table 3-10)

description: Vegetation: mosses total 98%, height 2-4cm; vascular plants total 20%, height 20cm, Carex aquatilis, Salix reticulata, Salix glauca, Saxifraga punctata, Pyrola secunda, Saxifraga hirculusRemarks: wavy horizon boundaries: slight cryoturbationSoil Taxonomy: Typic AquiturbelWorld Reference Base for Soil Resources: Gleyi-Turbic Cryosol Russian Classification (Elovskaya): Permafrost Turfness Gley
DOI: 10.1594/pangaea.771485
title: Physical oceanography during Walther Herwig II cruise WH019/2
DOI: 10.1594/pangaea.692372
title: Concentrations of chlorophyll-alpha in sea water from the euphotic zone at Station SEPT-94-GN3619940280301060 in the Aegean Sea

description: Samples from 2 l of sea water were filtered through polycarbonate Millipore. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour l'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.704782
title: (Tables 5-6) Composition of apatites from DSDP Site 43-386
DOI: 10.1594/pangaea.704783
title: (Tables 5-6) Composition of apatites from DSDP Site 47-397
DOI: 10.1594/pangaea.713964
title: (Table 1) Lithology, N isotope ratios and carbonate content of DSDP Hole 75-530A

description: For C-chemistry see Dean et al (1986) dataset: doi:10.1594/PANGAEA.714825
DOI: 10.1594/pangaea.744419
title: Physical oceanography during Tridens cruise Tridens82/1 to the North Sea
DOI: 10.1594/pangaea.771463
title: Paleomagnetic of sediment core CIROS-2
DOI: 10.1594/pangaea.690767
title: Microbe abundance and biomass in the euphotic zone of the Aegean Sea at Station SEPT-1997-GN36199704605MSB03

description: 10-30 ml subsamples were concentrated on 25 mm black polycarbonate filters (0.6 µm for NF, 0.2 µm for B), stained with DAPI for 10 min and filtered. NF were counted using UV and blue excitation and enumerated. Heterotrophic B were counted using UV excitation. NF were classified in size categories and biovolume was calculated. NF abundance data were converted into C biomass using 220 fgC µm**-3. Bact abund data were converted into C biomass using 20 fgC cell**-1. BP C was estimated by the 3H-leucine approach according to Kirchman et al. (1986) and Kirchman D.L., 1993. Leucine incorporation as a measure of biomass production by heterotrophic bacteria. In: Kemp P.F. et al. (eds), 1993. Handbook of methods in aquatic microbial ecology. Lewis Publishers, Ann Arbor, 509-512). At each depth duplicate samples and a control one were incubated with 1 nM L-[4,5 3H]-leucine (specific activity 128 Ci/mmol) and 18 nM non-radioactive leucine. Samples were incubated in the dark at in situ temperature.
DOI: 10.1594/pangaea.692373
title: Concentrations of chlorophyll-alpha in sea water from the euphotic zone at Station SEPT-94-GN3619940280301100 in the Aegean Sea

description: Samples from 2 l of sea water were filtered through polycarbonate Millipore. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour l'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.692374
title: Concentrations of chlorophyll-alpha in sea water from the euphotic zone at Station SEPT-94-GN3619940280301180 in the Aegean Sea

description: Samples from 2 l of sea water were filtered through polycarbonate Millipore. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour l'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.824104
title: Mass accumulation rates of IODP Hole 320-U1333C

description: Understanding changes in export production through time provides insight into the response of the biological pump to global climate change, particularly during periods of rapid climate change. In this study we consider what role changes in export production may have had on carbon sequestration and how this may have contributed to the onset of the Eocene-Oligocene transition (EOT). In addition, we consider if these export production variations are dominantly controlled by orbitally driven climate variability. To accomplish these objectives, we report changes in export production in the Eastern Equatorial Pacific (EEP) from Site U1333 across the EOT reconstructed from a high-resolution record of marine barite accumulation rates (BAR). BAR fluctuations suggest synchronous declines in export production associated with the two-step increases in oxygen isotopes that define the transition. The reduction in productivity across the EOT suggests that the biological pump did not contribute to carbon sequestration and the cooling over this transition. We also report a previously undocumented peak in EEP export productivity before the EOT onset. This peak is consistent with export production proxies from the Southern Ocean, potentially implying a global driver for this precursor event. We propose that this enhanced export production and the associated carbon sequestration in the late Eocene may have contributed to the pCO2 drawdown at the onset of Antarctic glaciation.
description: Supplement to: Erhardt, Andrea M; Pälike, Heiko; Paytan, Adina (2013): High-resolution record of export production in the eastern equatorial Pacific across the Eocene-Oligocene transition and relationships to global climatic records. Paleoceanography, 28(1), 130-142
DOI: 10.1594/pangaea.707408
title: (Table 1) Organic carbon contents and isotope composition in sediments from DSDP Site 15-147
DOI: 10.1594/pangaea.692376
title: Concentrations of chlorophyll-alpha in sea water from the euphotic zone at Station SEPT-94-GN3619940280301220 in the Aegean Sea

description: Samples from 2 l of sea water were filtered through polycarbonate Millipore. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour l'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.690768
title: Microbe abundance and biomass in the euphotic zone of the Aegean Sea at Station SEPT-1997-GN36199704605MSB04

description: 10-30 ml subsamples were concentrated on 25 mm black polycarbonate filters (0.6 µm for NF, 0.2 µm for B), stained with DAPI for 10 min and filtered. NF were counted using UV and blue excitation and enumerated. Heterotrophic B were counted using UV excitation. NF were classified in size categories and biovolume was calculated. NF abundance data were converted into C biomass using 220 fgC µm**-3. Bact abund data were converted into C biomass using 20 fgC cell**-1. BP C was estimated by the 3H-leucine approach according to Kirchman et al. (1986) and Kirchman D.L., 1993. Leucine incorporation as a measure of biomass production by heterotrophic bacteria. In: Kemp P.F. et al. (eds), 1993. Handbook of methods in aquatic microbial ecology. Lewis Publishers, Ann Arbor, 509-512). At each depth duplicate samples and a control one were incubated with 1 nM L-[4,5 3H]-leucine (specific activity 128 Ci/mmol) and 18 nM non-radioactive leucine. Samples were incubated in the dark at in situ temperature.
DOI: 10.1594/pangaea.808630
title: (Table 1) Clay and non-clay mineral composition of dirty ice samples from across the Arctic

description: Extensive dirty ice patches with up to 7 kg/m**2 sediment concentrations in layers of up to 10 cm thickness were encountered in 2005 and 2007 in numerous areas across the central Arctic. The Fe grain fingerprint determination of sources for these sampled dirty ice floes indicated both Russian and Canadian sources, with the latter dominating. The presence of benthic shells and sea weeds along with thick layers (2-10 cm) of sediment covering 5-10 m2 indicates an anchor ice entrainment origin as opposed to suspension freezing for some of these floes. The anchor ice origin might explain the dominance of Canadian sources where only narrow flaw leads occur that would not favor suspension freezing as an entrainment process. Expandable clays, commonly used as an indicator of a Kara Sea origin for dirty sea ice, are present in moderately high percentages (&gt;20%) in many circum-Arctic source areas, including the Arctic coasts of North America. Some differences between the Russian and the North American coastal areas are found in clay mineral abundance, primarily the much higher abundance of chlorite in North America and the northern Barents Sea as opposed to the rest of the Russian Arctic. However, sea ice clay mineralogy matched many source areas, making it difficult to use as a provenance tool by itself. The bulk mineralogy (clay and non-clay) does not match specific sources possibly due to reworking of the sediment in dirty floes through summer melting or the failure to characterize all possible source areas.
description: Positions are mostly approximate.
description: Supplement to: Darby, Dennis A; Myers, Wesley B; Jakobsson, Martin; Rigor, Ignatius (2011): Modern dirty sea ice characteristics and sources: The role of anchor ice. Journal of Geophysical Research: Oceans, 116, C09008
DOI: 10.1594/pangaea.816702
title: (Figure 3) Occurrence of planktonic foraminifers and other selected constituents in samples from DSDP Hole 80-548A

description: Species abundance: A = abundant, C = common, F = few, R = rare, ? = questionable occurrence, - = absent.
DOI: 10.1594/pangaea.828984
title: P-Wave velocity (PWL) from IODP Hole 339-U1386C

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.690735
title: Photosynthetic primary production of microplankton combined with different size fractions in sea water from the euphotic zone of the Aegean Sea at Station SEPT-1997-GN36199704606MNB03

description: Primary production was measured with the in situ 14C method of Steeman-Nielsen (Steemann-Nielsen, E. 1952. The use of radio-active carbon 14C for measuring organic production in the sea. Journal du Conseil International pour l'Exploration de la Mer. 18:3, 117-140). Samples were dispensed in 250 ml transparent polycarbonate bottles (three light and one dark for each depth); and each one was inoculated with 5 µCi 14-C-NaHCO3 and incubated at the collection depths for 2 hours. Fractionation was carried out by filtration through 0.2 µm, 1.2 µm and 3.0 µm polycarbonate Millipore filters. Filters were placed in scintillation vials, acidified with 0.5 N HCl and counted in a liquid scintillation counter.
DOI: 10.1594/pangaea.692384
title: Concentrations of chlorophyll-alpha in sea water from the euphotic zone at Station DEC94-JAN95-GN3619940280400460 in the Aegean Sea

description: Samples from 2 l of sea water were filtered through polycarbonate Millipore. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour l'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.669503
title: (Table 2) Element composition of corrensite and mixed-layer chlorite/smectite from altered basalts of DSDP Hole 83-504B, Costa Rica Rift, Pacific Ocean

description: Oxide wt % normalized to 88.0 wt % for analytical electron microscopy (AEM). Number of cations on the basis of 25 O except no. 7, where normalized on the basis of 28 O (chlorite formula). No. 5, 6, 8 for Mg values assuming 0.20 Mg in the interlayer site
DOI: 10.1594/pangaea.692358
title: Concentrations of chlorophyll-alpha in sea water from the euphotic zone at Station SEPT-94-GN3619940280300460 in the Aegean Sea

description: Samples from 2 l of sea water were filtered through polycarbonate Millipore. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour l'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.871132
title: Mg/Ca derived sea surface temperatures of sediment core HER_MC_MR03_3
DOI: 10.1594/pangaea.875643
title: (Table 2) Mass accumulation rates of sediment core PS009PC

description: A bottom water density of 1.027 g/cm**3 and a sediment density of 2.65 g/cm**3 were used to calculate porosity and dry bulk density (DBD).
DOI: 10.1594/pangaea.912662
title: Meteorological synoptical observations from station Minamitorishima (2019-12)
DOI: 10.1594/pangaea.810937
title: (Table 11) Major element chemistry of sedimentary deposits at DSDP Site 73-522, recalculated on CaO-free basis
DOI: 10.1594/pangaea.692361
title: Concentrations of chlorophyll-alpha in sea water from the euphotic zone at Station SEPT-94-GN3619940280300550 in the Aegean Sea

description: Samples from 2 l of sea water were filtered through polycarbonate Millipore. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour l'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.690736
title: Photosynthetic primary production of microplankton combined with different size fractions in sea water from the euphotic zone of the Aegean Sea at Station SEPT-1997-GN36199704606MNB04

description: Primary production was measured with the in situ 14C method of Steeman-Nielsen (Steemann-Nielsen, E. 1952. The use of radio-active carbon 14C for measuring organic production in the sea. Journal du Conseil International pour l'Exploration de la Mer. 18:3, 117-140). Samples were dispensed in 250 ml transparent polycarbonate bottles (three light and one dark for each depth); and each one was inoculated with 5 µCi 14-C-NaHCO3 and incubated at the collection depths for 2 hours. Fractionation was carried out by filtration through 0.2 µm, 1.2 µm and 3.0 µm polycarbonate Millipore filters. Filters were placed in scintillation vials, acidified with 0.5 N HCl and counted in a liquid scintillation counter.
DOI: 10.1594/pangaea.744176
title: Physical oceanography during Corella cruise Corella73/4 to the North Sea
DOI: 10.1594/pangaea.821263
title: (Table 8) Geochemistry of olivine phenocrysts and xenocryst at DSDP Holes 59-447A and 59-449

description: Cation proportions on the basis of 4 oxygens. Empty cells = no data.
DOI: 10.1594/pangaea.828520
title: Natural gamma radiation from IODP Hole 323-U1340D

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.776081
title: Core summary for IODP Hole 331-C0013D
DOI: 10.1594/pangaea.884940
title: The decadal reflector heights for SG27 in Barrow, Alaska (2016)
DOI: 10.1594/pangaea.829116
title: Carbonate analysis from IODP Hole 340-U1397A

description: Geocode = Top depth CSF-A (m)
DOI: 10.1594/pangaea.690724
title: Photosynthetic primary production of microplankton combined with different size fractions in sea water from the euphotic zone of the Aegean Sea at Station MARCH-1997-GN36199704603MNB02

description: Primary production was measured with the in situ 14C method of Steeman-Nielsen (Steemann-Nielsen, E. 1952. The use of radio-active carbon 14C for measuring organic production in the sea. Journal du Conseil International pour l'Exploration de la Mer. 18:3, 117-140). Samples were dispensed in 250 ml transparent polycarbonate bottles (three light and one dark for each depth); and each one was inoculated with 5 µCi 14-C-NaHCO3 and incubated at the collection depths for 2 hours. Fractionation was carried out by filtration through 0.2 µm, 1.2 µm and 3.0 µm polycarbonate Millipore filters. Filters were placed in scintillation vials, acidified with 0.5 N HCl and counted in a liquid scintillation counter.
DOI: 10.1594/pangaea.771389
title: Investigations on fossil wood from Seymour Island, Antarctica

description: Fossil collection from TELM 5 (Tertiary Eocene La Meseta unit 5), La Meseta Formation (50,000 ka BP)
DOI: 10.1594/pangaea.805318
title: (Table 10) Geochemistry of poikilitic pyroxene of ODP Holes 137-504B and 140-504B

description: Cation calculation based on 6 oxygens.
DOI: 10.1594/pangaea.690737
title: Photosynthetic primary production of microplankton combined with different size fractions in sea water from the euphotic zone of the Aegean Sea at Station SEPT-1997-GN36199704606MNB05

description: Primary production was measured with the in situ 14C method of Steeman-Nielsen (Steemann-Nielsen, E. 1952. The use of radio-active carbon 14C for measuring organic production in the sea. Journal du Conseil International pour l'Exploration de la Mer. 18:3, 117-140). Samples were dispensed in 250 ml transparent polycarbonate bottles (three light and one dark for each depth); and each one was inoculated with 5 µCi 14-C-NaHCO3 and incubated at the collection depths for 2 hours. Fractionation was carried out by filtration through 0.2 µm, 1.2 µm and 3.0 µm polycarbonate Millipore filters. Filters were placed in scintillation vials, acidified with 0.5 N HCl and counted in a liquid scintillation counter.
DOI: 10.1594/pangaea.771408
title: Basic measurements of radiation at station Camborne (2007-05)
DOI: 10.1594/pangaea.690725
title: Photosynthetic primary production of microplankton combined with different size fractions in sea water from the euphotic zone of the Aegean Sea at Station MARCH-1997-GN36199704603MNB03

description: Primary production was measured with the in situ 14C method of Steeman-Nielsen (Steemann-Nielsen, E. 1952. The use of radio-active carbon 14C for measuring organic production in the sea. Journal du Conseil International pour l'Exploration de la Mer. 18:3, 117-140). Samples were dispensed in 250 ml transparent polycarbonate bottles (three light and one dark for each depth); and each one was inoculated with 5 µCi 14-C-NaHCO3 and incubated at the collection depths for 2 hours. Fractionation was carried out by filtration through 0.2 µm, 1.2 µm and 3.0 µm polycarbonate Millipore filters. Filters were placed in scintillation vials, acidified with 0.5 N HCl and counted in a liquid scintillation counter.
DOI: 10.1594/pangaea.707793
title: (Table 1) Trace element abundances and Sr and Nd isotope compositions in bulk sediments from DSDP Hole 20-198A
DOI: 10.1594/pangaea.690739
title: Concentrations of chlorophyll-alpha combined with different size fractions of microplankton in sea water from the euphotic zone of the Aegean Sea at Station SEPT-1997-GN36199704605MSB02

description: Samples from 2 l of sea water were size fractionated by filtration through polycarbonate Millipore filters with pores 0.2 µm, 1.2 µm, and 3.0 µm. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour L'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.733114
title: (Table 33) Chemical composition of magmatic rocks from DSDP Hole 49-408
DOI: 10.1594/pangaea.825036
title: Point measurements of magnetic susceptibility from IODP Hole 334-U1380A

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.744169
title: Physical oceanography during Clione cruise Clione74/1 to the North Sea
DOI: 10.1594/pangaea.828913
title: Pass-through measurements of magnetic susceptibility from IODP Hole 339-U1390C

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.690743
title: Concentrations of chlorophyll-alpha combined with different size fractions of microplankton in sea water from the euphotic zone of the Aegean Sea at Station SEPT-1997-GN36199704606MNB02

description: Samples from 2 l of sea water were size fractionated by filtration through polycarbonate Millipore filters with pores 0.2 µm, 1.2 µm, and 3.0 µm. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour L'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.870874
title: (Table S1) Description of two-way traveltimes from different Sites of IODP Exp339

description: The Contourite Depositional Systems (CDS) in the Gulf of Cádiz and on the West Iberian margin preserve a unique archive of Mediterranean Outflow Water (MOW) variability over the past 5.3 Ma. These CDS have been recently drilled in several places during the IODP Expedition 339. These drill sites now offer a new window to the internal Pliocene and Quaternary architecture of the CDS. In this study, we use downhole and core Gamma Ray (GR) data acquired from 5 sites drilled in the CDS along the middle slope and 1 site drilled in the deeper setting of the lower slope, out of the MOW path. The GR data primarily tracks the clay content in the sediment and is the expression of sediment supply and, for sites drilled in the CDS, of the bottom current processes. Both appear astronomically controlled as shown by spectral analysis performed on the GR data. Results also reveal that the GR log patterns correlate well across the sites over the last 1.4 My. Several GR horizons corresponding to drops in GR values were identified, most of which fit with coarse-grained deposits observed in cores and interpreted as contourite beds. The GR horizons are interpreted as isochronous horizons, providing a regional scale chronostratigraphic framework for the CDS depositional records with an accuracy of ~ 20 ky. We further assess the spatial and temporal variability of the CDS hiatuses at the regional scale.
description: Supplement to: Hernandéz-Molina, Francisco Javier; Sierro, Francisco Javier; Llave, Estefania; Roque, C; Stow, Dorrik A V; Williams, Thomas; Lofi, Johanna; Van der Schee, Marlies; Arnáiz, A; Ledesma, Santiago; Rosales, C; Rodríguez-Tovar, Francisco Javier; Pardo-Igúzquiza, Eulogio; Brackenridge, Rachel E (2016): Evolution of the gulf of Cadiz margin and southwest Portugal contourite depositional system: Tectonic, sedimentary and paleoceanographic implications from IODP expedition 339. Marine Geology, 377, 7-39
DOI: 10.1594/pangaea.694907
title: Concentrations of chlorophyll-alpha in water of the Aegean Sea at Station SEPT-1998-IR16

description: Samples from 2 l of sea water were filtered through polycarbonate Millipore filters. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour l'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.899592
title: High-resolution XRF measurements on sediment core 64E406-E1 (0.4 mm resolution)
DOI: 10.1594/pangaea.664243
title: Oceanography at CTD/bottle station IFREMER_1084