cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.931798
title: XRF scanner data of sediment cores TG-01, Ona Basin, southwestern Scotia Sea (Antarctica)

description: During expedition SCAN 2013, gravity core TG-01 was collected in the Ona High slope, central Ona Basin, NE prolongation of the Antarctic Peninsula. The core is 400 cm long and was collected from 2160 m water depth at 60º22'23.9314''S, 53º02'15.2501''W. Non-destructive analyses (i.e., X-ray fluorescence scanning) were performed on the archive halves. Major element compositions were determined at 1-cm resolution on split core surfaces of the archive halves using a GEOTEK Multi-Sensor Core Logger (MSCL) 81 at the Spanish Geological Survey (IGME, Spain).
DOI: 10.1594/pangaea.931799
title: XRF scanner data of sediment cores TG-03, Ona Basin, southwestern Scotia Sea (Antarctica)

description: During expedition SCAN 2013, gravity core TG-03 was collected in the Ona High slope, central Ona Basin, NE prolongation of the Antarctic Peninsula. The core is 295 cm long and was collected from 2789 m water depth at 60º11'23.4003''S, 53º10'49.0810''W. Non-destructive analyses (i.e., X-ray fluorescence scanning) were performed on the archive halves. Major element compositions were determined at 1-cm resolution on split core surfaces of the archive halves using a GEOTEK Multi-Sensor Core Logger (MSCL) 81 at the Spanish Geological Survey (IGME, Spain).
DOI: 10.1594/pangaea.931796
title: Physical properties of sediment cores TG-01, Ona Basin, southwestern Scotia Sea (Antarctica)

description: During expedition SCAN 2013, gravity core TG-01 was collected in the Ona High slope, central Ona Basin, NE prolongation of the Antarctic Peninsula. The core is 400 cm long and was collected from 2160 m water depth at 60º22'23.9314''S, 53º02'15.2501''W. Non-destructive analyses were performed on the archive halves. Physical properties (magnetic susceptibility, gamma-ray density, electrical resistivity and P-wave velocity) were determined at 1-cm resolution on split core surfaces of the archive halves using a GEOTEK Multi-Sensor Core Logger (MSCL) 81 at the Spanish Geological Survey (IGME, Spain).
DOI: 10.1594/pangaea.936167
title: Seabed photographs taken along OFOBS profile PS124_54-1 during POLARSTERN cruise PS124
DOI: 10.1594/pangaea.914104
title: Grain size composition of sediment profile NTG16 from the northern Alps (Nesseltalgraben, Germany)
DOI: 10.1594/pangaea.919808
title: Compiled radiocarbon dating of Late Pleistocene syngenetic ice-wedges, northern Eurasia

description: Radiocarbon dating of Late Pleistocene syngenetic ice-wedges, northern Eurasia (after Vasil'chuk, 1991; 1992; additional Data supplied by S. Gubin, Ye. Slagoda, A. Kotov, and S. Tomirdiaro).The ¹⁴C measurements were made in the Geological Institute of the Russian Academy of Sciences (L. Sulerzhitsky).
DOI: 10.1594/pangaea.793431
title: (Table 1) Diatom abundance in ODP Hole 167-1018A sediments

description: DEPTH, sediment is given in mbsf.
DOI: 10.1594/pangaea.936183
title: Seabed photographs taken along OFOBS profile PS124_90-10 during POLARSTERN cruise PS124
DOI: 10.1594/pangaea.936184
title: Seabed photographs taken along OFOBS profile PS124_94-5 during POLARSTERN cruise PS124
DOI: 10.1594/pangaea.936181
title: Seabed photographs taken along OFOBS profile PS124_78-8 during POLARSTERN cruise PS124
DOI: 10.1594/pangaea.860918
title: Diatoms abundance in sediment core PS75/082-1
DOI: 10.1594/pangaea.945445
title: A database of radiometric dates from glaciated landscapes across the Mediterranean mountains

description: This database is a compilation of 1,663 radiometric ages obtained from glaciated landscapes across the Mediterranean mountains. The dates have been collated from the published literature and span the last 2 Ma. This database contains 1,275 recalculated terrestrial cosmogenic nuclide (TCN) ages; 186 recalibrated radiocarbon (14C) ages; 108 Uranium-series ages; 80 ages from luminescence dating (including optically stimulated luminescence - OSL, thermoluminescence - TL and infrared stimulated luminescence - IRSL); and 14 ages from 40Ar/39Ar, electron spin resonance (ESR) and 210Pb methods. The details of 401 moraine landform ages; input data for 10Be and 36Cl age recalculations; input data for 14C age calibration; and a reference list of publications that present radiometric ages in the Mediterranean mountains are also included. This database comprises the source data to: Allard, J.L. et al. (2021). The database has a census date of 31 August 2020.
DOI: 10.1594/pangaea.860912
title: Diatoms abundance in sediment core PS75/051-1
DOI: 10.1594/pangaea.933669
title: Mean January air temperatures in Siberian permafrost at 20−18 ka BP and comparison with modern values

description: Palaeotemperature reconstruction for the period of 20−18 ka BP in Siberia is based on δ¹⁸O analysis and ¹⁴C dating of large syngenetic ice wedges of yedoma exposures from Yamal Peninsula to Chukotka. The modern relationship between δ¹⁸O composition of ice-wedge ice and winter temperature reveals Palaeotemperature reconstruction. Snow meltwater is considered to be the main source of ice-wedge ice. In modern ice wedges during the last 60–100 years δ¹⁸O fluctuates are between −14 and −20‰ in western Siberia and between −23 and −28‰ in northern Yakutia. The trend in δ¹⁸O distribution in ice wedges dated at 20−18 ka BP is similar to the modern one. δ¹⁸O values in Late Pleistocene wedges are more negative going from the west to the east: from −19 to −25‰ in western Siberian ice wedges to −30 to −35‰ in northern Yakutia. At 20−18 ka BP mean January temperatures were about 8–12°C lower (in Chukotka up to 17–18°C) than at present.
description: Mean January air temperaures of the Siberian permafrost were compiled from Vasil'chuk 1992 with additions and amendments).Data were submitted and proofread by Yurij K Vasil'chuk and Lyubov Bludushkina at the faculty of Geography, department of Geochemistry of Landscapes and Geography of Soils, Lomonosov Moscow State University.
DOI: 10.15468/dl.a5spkc
title: Occurrence Download

description: A dataset containing 241351 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is iNaturalist Research-grade Observations",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Country is one of (Canada, Mexico, United States of America)",
 "EventDate is greater than or equal to 2025-03-03",
 "EventDate is less than or equal to 2025-04-02",
 {
 "not" : {
 "Issue" : [
 "is one of (Basis of record invalid, Coordinate reprojection failed, Coordinate reprojection suspicious, Coordinate precision invalid, Coordinate uncertainty meters invalid, Country mismatch, Country invalid, Geodetic datum invalid, Presumed swapped coordinate, Presumed negated longitude, Presumed negated latitude, Country coordinate mismatch)"
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}

 The dataset includes 241351 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005972-250325103851331/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.757740
title: Sea-floor videos and photographs (benthos) along 16 ROV profiles during POLARSTERN cruise ANT-VI/3, Weddell Sea

description: ROV (sprint 103) equiped with 36mm still and two video cameras. Video Codecs Used: MPEG-2 Video; File Format: MPEG-2 PS (mpeg-2 program stream); Frame Width: 720 pixels; Frame Height: 544 pixels; Frame Rate: 25.000 fps; Display Aspect Ratio: 4/3; Scan Type: Progressive; Colorimetry: 4:2:0; Quality Factor: 0.613 bits/pixel-frame; Video Stream BitRate: 5 719 Kbps; Video Stream BitRate (Nominal): 6 000 Kbps; Video Stream BitRate Mode: CBR. Use the VLC media player for playing the videos (http://www.videolan.org/). Still photographs: Kodak Ektachrome 100; Nikon super coolscan 4000ED; JPEG compression. Time is given as UTC+2h.
DOI: 10.1594/pangaea.923879
title: Pore-water data of sediment core GeoB22032-1
DOI: 10.1594/pangaea.941110
title: Pore water geochemistry at sampling site Potter_Cove_STA03
DOI: 10.1594/pangaea.941167
title: Pore water geochemistry at sampling site Potter_Cove_STA13
DOI: 10.1594/pangaea.941170
title: Pore water geochemistry at sampling site Potter_Cove_STA14
DOI: 10.1594/pangaea.941172
title: Pore water geochemistry at sampling site Potter_Cove_STA15
DOI: 10.1594/pangaea.941180
title: Pore water geochemistry at sampling site Potter_Cove_STA16
DOI: 10.1594/pangaea.941205
title: Pore water geochemistry at sampling site Potter_Cove_STA17
DOI: 10.1594/pangaea.941128
title: Pore water geochemistry at sampling site Potter_Cove_STA04
DOI: 10.1594/pangaea.932301
title: Grain-size distribution of sediment core MD07-3114
DOI: 10.1594/pangaea.941130
title: Pore water geochemistry at sampling site Potter_Cove_STA10
DOI: 10.1594/pangaea.860922
title: Diatoms abundance in sediment core PS75/097-4
DOI: 10.1594/pangaea.932195
title: Magnetic susceptibility of sediment core MD07-3114
DOI: 10.1594/pangaea.932196
title: Magnetic susceptibility of sediment core MD07-3115
DOI: 10.1594/pangaea.932299
title: Grain-size distribution of sediment core MD07-3115
DOI: 10.1594/pangaea.965044
title: Sea ice-related diatoms of sediment core PS118_63-1
DOI: 10.1594/pangaea.924952
title: Mass percentages of fatty acids (FAME) during an Arctic sea ice algal bloom on landfast ice and in water near the settlement of Svea, in Van Mijenfjorden, Spitsbergen
DOI: 10.1594/pangaea.924955
title: Algae biomass composition of landfast ice (transect) near the settlement of Svea, Van Mijenfjorden, Spitsbergen
DOI: 10.1594/pangaea.924950
title: Concentration of fatty acids (FAME) during an Arctic sea ice algal bloom on landfast ice and in water near the settlement of Svea, Van Mijenfjorden, Spitsbergen
DOI: 10.1594/pangaea.860917
title: Diatoms abundance in sediment core PS75/076-2
DOI: 10.1594/pangaea.923880
title: Pore-water data of sediment core GeoB22039-2
DOI: 10.1594/pangaea.937734
title: Minimal, average, and maximum values of δ¹⁸O in ice wedge of the sections from Mamontova Gora and Syrdakh Lake, Central Yakutia

description: The oxygen isotope composition of the Late Pleistocene and Holocene syngenetic ice wedges, exposed at Mamontova Gora and Syrdakh Lake, is determined. In the area of Mamontova Gora, δ¹⁸O is in the range of –24.7 to –30.9‰ for the Late Pleistocene ice wedges, and of –23.2 to –25.9‰ for the Holocene ice wedges. In the area of Syrdakh Lake, δ18O ranges from –29.2 to –32.5‰. Obtained isotope data allowed to reconstruct the average winter air temperatures.
description: Stable oxygen isotope measurements were conducted in the Stable Isotope Laboratory of Moscow State University using Delta V Plus mass spectrometer.
DOI: 10.1594/pangaea.937733
title: Radiocarbon dating of Late Pleistocene and Holocene ice wedges in Mamontova Gora, Central Yakutia

description: Radiocarbon dating of the Late Pleistocene and Holocene syngenetic ice wedges, exposed at Mamontova Gora, are determined. The age of the ice wedges is shown to be younger than 20 ka, but older than 10 ka BP.
description: The studies were conducted with the use of Accelerator Mass Spectrometry (AMS).
DOI: 10.1594/pangaea.937822
title: Early Pliocene Biomarker (UK'37) Temperature Estimates from DSDP Hole 94-609B

description: This table includes temperatures (UK37') and concentrations (alkenones) calculated from organic biomarker measurements performed on Pliocene sediment material from Deep Sea Drilling Program (DSDP) Hole 94-609B.
DOI: 10.1594/pangaea.937814
title: Early Pliocene Biomarker (TEX86) Temperature Estimates from DSDP Hole 94-609B

description: This table includes temperatures (TEX86) and concentrations (GDGTs) calculated from organic biomarker measurements performed on Pliocene sediment material from Deep Sea Drilling Program (DSDP) Hole 94-609B.
DOI: 10.1594/pangaea.974349
title: Radiocarbon dating and charcoal identification record from NEP 1, NEP 2, NEP 3, NEP 4, Nördlingen, southern Germany

description: The charcoal fragments found during the excavation of NEP soil profiles downstream of the course of the Eger River (on the northern outskirts of Nördlingen) were anthracologically examined and determined to the lowest possible taxonomic rank. Subsequently some of them were radiocarbon dated at the Curt-Engelhorn-Zentrum Archäometrie gGmbH (CEZA). The samples were pretreated with HCl, NaOH and HCl using the ABA method (Acid/Base/Acid). The ¹⁴C content was measured with a MICADAS AMS-System. Radiocarbon ages are given as uncalibrated measurements in "kiloyears before present".
DOI: 10.1594/pangaea.863072
title: Diatom relative abundances of sediment core DTCI2010
DOI: 10.1594/pangaea.925563
title: Syngenetic ice wedges and age of slope yedoma deposits in the foothills of the Kular Ridge

description: The structure and composition of Late Pleistocene ice wedges in the ice complex outcropping onto gently sloping Kular ridge in the western Yana-Indigirka Lowland are considered. Ice wedges are dated 47-42 and 37-32 kyr BP. Over this time, relatively high temperatures of the growing season were recorded twice. Their rise appeared to be suffi cient for the growth of trees, while a relatively warm summer season activated slope processes and accumulation of slope yedoma deposits.
description: Radiocarbon dating was performed at the Radiocarbon Laboratory of the Geological Institute of the Russian Academy of Sciences, with participation of Sulerzhitsky. Statistical parameters were derived from the data processing with the use of STATISTICA 10 software package. A series of dates were obtained for pure peat (with only few mineral inclusions), for wood from twigs, as well as for bone remains. All radiocarbon (¹⁴С) dates were calibrated using the OxCal calibration and analyst software, v. 4.3 (Bronk Ramsey, 2009), based on the IntCal13 calibration data set (Reimer et al., 2013).Data was submitted and proofread by Yurij K Vasil'chuk and Lyubov Bludushkina at the faculty of Geography, department of Geochemistry of Landscapes and Geography of Soils, Lomonosov Moscow State University.
DOI: 10.1594/pangaea.974221
title: Hydrochemistry and isotope data from groundwater monitoring wells in the Mekong Delta, Vietnam

description: A total of 119 groundwater samples were collected across the Mekong Delta in Vietnam for hydrochemical and isotopic analysis (major ions, secondary elements, δ2H-H2O, δ18O-H2O, δ13C-DIC, 14C-DIC). The campaign comprised samples from five deep, (semi-)confined aquifers of the Mekong Delta and was conducted in March and April 2021 at monitoring wells of the National Groundwater Monitoring Network in cooperation with the Division of Water Resources Planning and Investigation in the South of Vietnam (DWRPIS). At each well, about three well volumes of groundwater were pumped with a submersible pump and field parameters were measured using a flow cell. A set of five bottles was taken for analysis of cations and secondary elements (PET), anions and alkalinity (PET), dissolved organic carbon (DOC) (glass with aluminum cap), stable isotopes of water (glass), and carbon isotopes (HDPE). Water for cations and secondary elements was passed through 0.45 µm cellulose acetate filters and acidified with ultrapure nitric acid (Merck) to pH&lt;2. The main objective of the project was to assess the impact of groundwater abstraction on groundwater flow and water quality in the different aquifers.
DOI: 10.1594/pangaea.927082
title: Pore water geochemistry of sediment core GeoB22046-1, Cumberland Bay

description: Hydrogen sulfide: All missing values were not measured due to a lack of characteristic sulfide smell.
DOI: 10.1594/pangaea.974737
title: Stable isotope composition of zooplankton species from Fram Strait during POLARSTERN cruise PS100, PS107, and PS121

description: A combination of fatty acid and stable isotope biomarker analyses was utilized to investigate the dietary composition and trophic levels of key zooplankton species across Fram Strait, including Arctic and boreal-Atlantic sister species of Calanus, Paraeuchaeta, and Themisto. Samples were collected during three RV Polarstern expeditions (PS100, PS107, and PS121) using either a multiple opening and closing net equipped with five nets for stratified vertical hauls (Hydrobios Multinet Midi, mouth opening 0.25 m², mesh size 150 µm, hauling speed 0.5 m s⁻¹) or a bongo net (mesh size 200–500 µm, towing speed 1–2 knots). Vertical hauls with the Multinet typically sampled the entire water column, from above the seafloor or a maximum depth of 1,500 m to the surface. Immediately after the haul, individuals were sorted by species and developmental stage in a temperature-controlled lab and stored in Eppendorf tubes at -80°C for subsequent fatty acid and stable isotope analyses.
DOI: 10.1594/pangaea.923881
title: Pore-water data of sediment core GeoB22043-1
DOI: 10.1594/pangaea.974773
title: Fatty acid composition of zooplankton species from Fram Strait during POLARSTERN cruise PS100, PS107, and PS121

description: A combination of fatty acid and stable isotope biomarker analyses was utilized to investigate the dietary composition and trophic levels of key zooplankton species across Fram Strait, including Arctic and boreal-Atlantic sister species of Calanus, Paraeuchaeta, and Themisto. Samples were collected during three RV Polarstern expeditions (PS100, PS107, and PS121) using either a multiple opening and closing net equipped with five nets for stratified vertical hauls (Hydrobios Multinet Midi, mouth opening 0.25 m², mesh size 150 µm, hauling speed 0.5 m s⁻¹) or a bongo net (mesh size 200–500 µm, towing speed 1–2 knots). Vertical hauls with the Multinet typically sampled the entire water column, from above the seafloor or a maximum depth of 1,500 m to the surface. Immediately after the haul, individuals were sorted by species and developmental stage in a temperature-controlled lab and stored in Eppendorf tubes at -80°C for subsequent fatty acid and stable isotope analyses.
DOI: 10.1594/pangaea.919317
title: Fluid temperatures calculated from δ18OV-SMOW values of quartz, calcite and epidote calculated from mineral separates of the western Princessa Alice Bank lavas
DOI: 10.1594/pangaea.943189
title: P-wave velocity of ODP Site 151-909

description: The composite P-wave velocity (Vp) profile of the uppermost 26 m consists of edited and spliced velocity measurements with the P-wave logger on sediment cores from Holes 909A and 909B. For the interval between 102 and 1000 mbsf in-situ velocity information from downhole logs (Sonic Digital Tool, processed postcruise data) at Hole 909C were used.
DOI: 10.1594/pangaea.943168
title: Silt record and accumulation rates of ODP Site 151-909

description: Percentage silt data estimated from smear slides were used to calculate accumulation rates of silt. Estimated silt percentages as well as all original physical property measurements are from Myhre et al. (1995).
DOI: 10.1594/pangaea.943204
title: Accumulation rates for various grain size classes of the coarse fraction of ODP Site 151-909

description: Based on a new chronology, total mass accumulation rates (MAR) and accumulation rates for various grain size classes of the coarse fraction (&gt;63 µm) were recalculated. Original weight percentage data are from O'Connell et al. (1996) and Wolf-Welling et al. (1996).
DOI: 10.1594/pangaea.943186
title: Wet bulk density records of ODP Site 151-909

description: Wet bulk density (WBD) data stem from nondestructive density measurements of whole-round core sections with a gamma-ray attenuation porosity evaluator (0 – 89 m), and from densities calculated from phasor induction resistivity downhole logging measurements (89 – 1016 m).
DOI: 10.1594/pangaea.957996
title: Authigenic element concentration and neodymium isotope from IODP Sites 303-U1302, 303-U1305, and ODP Site 105--647

description: Labrador Sea sediment cores IODP 303-U1302, 303-U1305, and ODP 105-647 were investigated for their authigenic trace metal concentrations and neodymium isotope signatures. The sediments are 0 - 35 thousand years old and the authigenic fractions were extracted with weak acid-reductive bulk sediment leaching, with leaching of the decarbonated sediment, and from picked foraminifera samples, and analysed using ICP-QMS and MC-ICP-MS in 2016 - 2019. They were interpreted in terms of exchange with sediment and sea water, and regional climate-induced changes in continental weathering and ocean circulation. Data of three sediment sites were extracted with three different methods. Columns are site and core name, sample depth in cm top and bottom and meters composite depth, sample mass in grams, epsilon Nd signature, two standard deviations uncertainty to epsilon Nd signature, concentrations of 32 elements in µg per gram bulk sediment used, calculated carbonate concentration relative to bulk sediment mass in %, the ratio of heavy to light rare earth elements, mid rare earth element enrichment, cerium anomaly, europium anomaly, sediment age minimum, maximum, and weighted mean in thousand years inferred from sediment datings analysed with the BACON package for the R software, and the sediment classification in terms of IRD events.
DOI: 10.1594/pangaea.958088
title: HH-leaches of different fractions in North Atlantic marine sediments
DOI: 10.1594/pangaea.958178
title: Epsilon neodymium (ɛ Nd) signatures from literature of different fractions in North Atlantic marine sediments
DOI: 10.1594/pangaea.914105
title: Organic chemistry analyses of sediment profile NTG16 from the northern Alps (Nesseltalgraben, Germany)
DOI: 10.1594/pangaea.914107
title: Radiocarbon dates of sediment profile NTG16 from the northern Alps (Nesseltalgraben, Germany)
DOI: 10.1594/pangaea.948364
title: Lignin phenols contents in sediment cores SO202/1_18-3 and SO202/1_18-6

description: The dataset comprises contents and mass-accumulation rates of lignin phenols in sediment cores from the Bering Sea (cores SO202/1_18-3 and SO202/1_18-6). Eight lignin-derived phenols were analyzed in our study. They can be classified into three groups according to their plant sources and structures: Vanillyl phenols (V) consisting of vanillin (Vl), acetovanillone (Vn) and vanillic acid (Vd). 2. Syringyl phenols (S), comprising syringealdehyde (Sl), acetosyringone (Sn) and syringic acid (Sd). 3. Cinnamyl phenols (C) that include p-coumaric acid (p-Cd) and ferulic acid (Fd). Besides, we also included some other oxidation products that do not necessarily originate from lignin, such as 3,5-dihydroxybenzoic acid (3,5Bd). Contents are calculated relative to total organic carbon contents and to the dry weight of the sediment. Indicators for vegetation development (S/V and C/V), wetland extent (3,5Bd/V) and degree of organic matter degradation ((Ad/Al)s and (Ad/Al)v) are given. Moreover, TOC and dry bulk density of the two sediment cores are also shown in this dataset.
DOI: 10.1594/pangaea.56026
title: Diatom assamblage in samples from sediment trap NB6
DOI: 10.1594/pangaea.924949
title: Stable carbon isotope ratios of selected fatty acid markers during an Arctic sea ice algal bloom on landfast ice and in water near the settlement of Svea, in Van Mijenfjorden, Spitsbergen
DOI: 10.1594/pangaea.919930
title: Calanus finmarchicus incorporation of essential fatty acids (EPA and DHA) in laboratory experiments

description: Laboratory-reared stage C5 copepodites of the marine calanoid copepod Calanus finmarchicus were used to test the effects of temperature (at 6°C, 12°C and increasing temperature stress from 6-12°C) and prey type (the dinoflagellate Heterocapsa triquetra, abbreviated "Het", and the diatom Thalassiosira weissflogii, abbreviated "Tw") on the extent and efficiency of dietary EPA and DHA incorporation from phytoplankton to copepods in a set of feeding experiments using 13C labelling. These data depict ingestion, incorporation and gross growth efficiency (GGE), defined as the fraction of ingested EFAs retained in copepod tissue, of both EFAs in different temperature treatments in 8-day laboratory feeding experiments.
DOI: 10.1594/pangaea.860920
title: Diatoms abundance in sediment core PS75/093-1