cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.772113
title: (Table S1) Age determination of Emperor Seamounts basement

description: The Hawaiian-Emperor hotspot track has a prominent bend, which has served as the basis for the theory that the Hawaiian hotspot, fixed in the deep mantle, traced a change in plate motion. However, paleomagnetic and radiometric age data from samples recovered by ocean drilling define an age-progressive paleolatitude history, indicating that the Emperor Seamount trend was principally formed by the rapid motion (over 40 millimeters per year) of the Hawaiian hotspot plume during Late Cretaceous to early-Tertiary times (81 to 47 million years ago). Evidence for motion of the Hawaiian plume affects models of mantle convection and plate tectonics, changing our understanding of terrestrial dynamics.
description: Ages calculated using biotite monitor FCT-3 (28.04 Ma) and the following decay constants:lambda-epsilon = 0.581E-10/yr, lambda-epsiolon = 4.963E-10/yr.
description: Supplement to: Tarduno, John A; Duncan, Robert A; Scholl, David W; Cottrell, Rory D; Steinberger, Bernhard; Thordarson, Thorvaldur; Kerr, Bryan C; Neal, Clive R; Frey, Frederick A; Torii, Masayuki; Carvallo, Claire (2003): The Emperor Seamounts: Southward motion of the Hawaiian hotspot plume in earth's mantle. Science, 301(5636), 1064-1069
DOI: 10.1594/pangaea.831136
title: (Table S1) Age determination of sediment core MD02-2550C2

description: During the last deglaciation, Greenland ice core and North Atlantic sediment records exhibit multiple abrupt climate events including the Younger Dryas cold episode (12.9-11.7 ka). However, evidence for the presence of the Younger Dryas in the Gulf of Mexico (GOM) and the relationship between GOM sea surface temperature (SST) and high-latitude climate change is less clear. We present new Mg/Ca-SST records from two varieties of the planktonic foraminifer Globigerinoides ruber (white and pink) to assess northern GOM SST history from approximately 18.4-10.8 ka. Thirty-five accelerator mass spectrometry (AMS) 14C dates from Orca Basin core MD02-2550 provide excellent age control and document high sedimentation rates (~40 cm/kyr). G. ruber (white and pink) Mg/Ca-SST data exhibit increases (~4.6 ± 0.6°C and ~2.2 ± 0.5°C, respectively) from at least 17.8-16.6 ka, with nearly decadal resolution that are early relative to the onset of the Bolling-Allerod interstadial. Moreover, G. ruber (white) SST decreases at 16.0-14.7 ka (~1.0 ± 0.5°C) and 12.8-11.6 ka (~2.4 ± 0.6°C) correlate to the Oldest and Younger Dryas in Greenland and Cariaco Basin. The G. ruber (pink) SST record, which reflects differences in seasonality and/or depth habitat, is often not in phase with G. ruber (white) and closely resembles Antarctic air temperature records. Overall, it appears that Orca Basin SST records follow Antarctic air temperature early in the deglacial sequence and exhibit enhanced seasonality during Greenland stadials.
description: Supplement to: Williams, Carlie; Flower, Benjamin P; Hastings, D; Guilderson, Thomas P; Quinn, Kelly A; Goddard, Ethan A (2010): Deglacial abrupt climate change in the Atlantic Warm Pool: A Gulf of Mexico perspective. Paleoceanography, 115(4), PA4221
DOI: 10.1594/pangaea.847093
title: (Table 9) Summary of SHRIMP U-Pb single zircon spot analyses
DOI: 10.1594/pangaea.942720
title: Age model of kasten core 20048-1 and multicore 20007-1

description: §: adjusted for loss at kasten core top (by comparison with multicore)YT: Yoldia terminationBIL FD: Baltic Ice Lake final drainageBIL 1: Baltic Ice Lake first drainage
DOI: 10.1594/pangaea.905888
title: Age model of core GeoB18131-1
DOI: 10.1594/pangaea.816569
title: Abundance and calculated biomass of large-scale distribution from Atlantic nitrogen fixation controlled by iron availability
DOI: 10.1594/pangaea.873026
title: Age determination on sediment core GIK16415-1
DOI: 10.1594/pangaea.856672
title: (Table 1) Age determination of sediment cores south of the Faeroe Islands

description: A study was made of three cores from the Faeroe-Shetland gateway, based on planktonic foraminifera, oxygen isotopes, accelerator mass spectrometry 14C dates, magnetic susceptibility, and counts of ice rafted debris (IRD). The data, covering the period 30-10 ka, show that during the Last Glacial Maximum the Arctic Front occupied a position close to the Faeroes, allowing a persisting inflow of Atlantic surface water into the Faeroe-Shetland Channel. The oceanographic environment during deposition of two IRD layers is influenced by Atlantic surface water masses during the lower IRD layer, with transport of icebergs from N-NW. Polar surface water conditions prevailed only during deposition of the upper IRD layer. There is no indication of surface meltwater influence in the region during the deglaciation, but there is a persistent influence of Atlantic surface water masses in the region. Thus we conclude that during almost the entire period (30-10 ka) the Faeroe-Shetland Channel was a gateway for transport of Atlantic surface water toward the Norwegian Sea.
description: Supplement to: Lassen, Susanne Juul; Jansen, Eystein; Knudsen, Karen Luise; Kuijpers, Antoon; Kristensen, Margrethe; Christensen, Karen (1999): Northeast Atlantic sea surface circulation during the past 30-10 14C kyr B.P. Paleoceanography, 14(5), 616-625
DOI: 10.1594/pangaea.740899
title: Age determination of sediment core KRAGJR, Krageholmssjön, Sweden

description: Original the Pb210 ages in the publication are given in years before 1983. Recalculed by the EPD staff.This dataset was archived on 2010-05-11 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.776407
title: (Table 1) Age determination of sediment core PG1984
DOI: 10.1594/pangaea.823068
title: (Table 1) Age analysis at DSDP Hole 57-439

description: Correction factors used are (39Ar/37Ar)Ca = 0.0039, (36Ar/37Ar)Ca = 0.00029, (40Ar/39Ar)K = 0.031. Errors given in the apparent ages indicate 1 sigma. Empty cells = no data.
DOI: 10.1594/pangaea.860741
title: Age determination of sediment core PS75/064-1
DOI: 10.1594/pangaea.619114
title: (Table 1) Age model of sediment core MD99-2334
DOI: 10.1594/pangaea.839895
title: (Table 1) Radiocarbon ages of samples taken from five sites in north-eastern European Russia

description: Aim: Concepts about patterns and rates of post-glacial tree population migration are changing as a result of the increasing amount of palaeobotanical information being provided by macroscopic plant remains. Here we combine macrofossil, pollen and stomata records from five sites in north-eastern European Russia and summarize the results for the late-glacial-early Holocene transition. The late-glacial-early Holocene transition encompasses the first indications of trees (tree-type Betula, Picea abies, Abies sibirica and Larix sibirica) and subsequent forest development. Considerable time-lags between the first macrobotanical and/or stomata finds of spruce (Picea abies) and the establishment of a closed forest are reconsidered. Location: Pechora basin, north-eastern European Russia. Methods: We used plant macrofossil, stomata, pollen and radiocarbon analyses to reconstruct late-glacial and early Holocene tree establishment and forest development. The data were derived from lake sediment and peat archives. Results: Palaeobotanical data reveal an early Holocene presence (11,500-10,000 cal. yr bp) of arboreal taxa at all five sites. One site presently located in the northernmost taiga zone, shows the presence of spruce and reproducing tree birch during the late-glacial. Given the current view of post-glacial population dynamics and migration rates, it seems likely that the source area of these early tree populations in north-eastern European Russia was not located in southern Europe but that these populations had local origins. Results thus support the emerging view that the first post-glacial population expansions in non-glaciated regions at high latitudes do not reflect migration from the south but were a result of an increase in the size and density of small persisting outlying tree populations. Main conclusions: Results suggest that the area east of the margin of the Scandinavian ice sheet to the Ural Mountains had isolated patches of trees during the late-glacial and early Holocene and that these small populations acted as initial nuclei for population expansion and forest development in the early Holocene.
description: Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
description: Supplement to: Väliranta, Minna; Kaakinen, Anu; Kuhry, Peter; Kultti, Seija; Salonen, J Sakari; Seppä, Heikki (2011): Scattered late-glacial and early Holocene tree populations as dispersal nuclei for forest development in north-eastern European Russia. Journal of Biogeography, 38(5), 922-932
DOI: 10.1594/pangaea.57388
title: (Table 1) Radiocarbon datings from the investigated sites
DOI: 10.1594/pangaea.728837
title: (Table 1) Luminescence datings from Varchushka and Pyoza rivers, Russia

description: The Pyoza River area in the Arkhangelsk district exposes sedimentary sequences suitable for study of the interaction between consecutive Valdaian ice sheets in Northern Russia. Lithostratigraphic investigations combined with luminescence dating have revealed new evidence on the Late Pleistocene history of the area. Overlying glacigenic deposits of the Moscowian (Saalian) glaciation marine deposits previously confined to three separate transgression phases have all been connected to the Mikulinian (Eemian) interglacial. Early Valdaian (E. Weichselian) proglacial, lacustrine and fluvial deposits indicate glaciation to the east or north and consequently glacier damming and meltwater run-off in the Pyoza area around 90-110 ka BP. Interstadial conditions with forest-steppe tundra vegetation and lacustrine and fluvial deposition prevailed at the end of the Early Valdaian around 75-95 ka BP. A terrestrial-based glaciation from easterly uplands reached the Pyoza area at the Early to Middle Valdaian transition around 65-75 ka BP and deposited glaciofluvial strata and subglacial till (Yolkino Till). During deglaciation, laterally extensive glaciolacustrine sediments were deposited in ice-dammed lakes in the early Middle Valdaian around 55-75 ka BP. The Barents–Kara Sea ice sheet deposited the Viryuga Till on the lower Pyoza from northerly directions. The ice sheet formed the Pyoza marginal moraines, which can be correlated with the Markhida moraines further east, and proglacial lacustrine deposition persisted in the area during the first part of the Middle Valdaian. Glacio-isostatic uplift caused erosion followed by pedogenesis and the formation of a deflation horizon in the Middle Valdaian. Widely dispersed periglacial river plains were formed during the Late Valdaian around 10-20 ka BP. Thus, the evidence of a terrestrial-based ice sheet from easterly uplands in the Pyoza area suggests that local piedmont glaciers situated in highlands such as the Timan Ridge or the Urals could have developed into larger, regionally confined ice sheets. Two phases of ice damming and development of proglacial lakes occurred during the Early and Middle Valdaian. The region did not experience glaciation during the Late Valdaian.
description: Supplement to: Houmark-Nielsen, Michael; Demidov, Igor; Funder, Svend; Grøsfjeld, Kari; Kjær, Kurt Henrik; Larsen, Eiliv; Lavrova, Nadya; Lyså, Astrid; Nielsen, Jan K (2001): Early and Middle Valdaian glaciations, ice-dammed lakes and periglacial interstadials in northwest Russia: new evidence from the Pyoza River area. Global and Planetary Change, 31(1-4), 215-237
DOI: 10.1594/pangaea.871481
title: (Table A1) Open-system age model and Uranium/Thorium analyses of coral samples from terraces along the Saudi Arabian Red Sea coast
DOI: 10.1594/pangaea.186292
title: Radiocarbon age determinations on sediment core V29-183
DOI: 10.1594/pangaea.846985
title: (Supplementary Table 2) Age determination of sediment core GIK18479-4
DOI: 10.1594/pangaea.729961
title: (Table 1) Age determination of single species benthic and planktonic foraminifera from sediment core F2-92-P3
DOI: 10.1594/pangaea.786587
title: (Table 2) Radiocarbon dates of peat samples obtained from Morne Rouge, Ile de Possession
DOI: 10.1594/pangaea.877691
title: Radiocarbon calibration uncertainties for tree-ring chronologie Palughetto_P305u

description: Note that in addition to the stated uncertainties the GICC05 counting error applies. However, as shown in figure 5, this error is likely overestimated for the investigated period and probably smaller than +-75 years (see also Muscheler et al. 2014, doi:10.1016/j.quascirev.2014.08.017). The close agreement between the placement of P305/A15 on GICC05 and IntCal13 (figure 7) supports this notion.The P305u GICC05 ages are based on figure 7 but are nearly identical to what is shown in figure 5The A15 GICC05 ages are based on figure 7, assuming a link between P305u and A15 at ring 150 of P305u (figure 6). We added an additional uncertainty of +-20 years to this link based on the Chi2 statistic shown in figure 6a.The P317 GICC05 ages are based on figure 5, but excluding links that would imply an overlap between P305u and P317 (see figure 6b and discussion in the text).
DOI: 10.1594/pangaea.422442
title: Age determination of sediment core PG1164
DOI: 10.1594/pangaea.952469
title: Radiocarbon dating on samples from Reindeer winter ranges in Northern Finland

description: These data originate from 10 soil profiles sampled in northern Finland in June 2022 as part of the PeCHEc project. All sites were sampled on the Kutuharju Field Research Station, a reindeer research station run by the Reindeer Herders' Association of Finland. 8 sites are located on the reindeer winter ranges, while 1 site (S-2P) located on the reindeer summer ranges. 1 site (E-1M-B) is a reindeer exclosure site. In total, 5 sites with mineral soil (profiles with fixed volume cylinders) and 5 sites with peat (peat corer) were sampled in tundra, grassland and birch forest landscapes, covering a range of 5 different reindeer grazing intensities: - exclosure site with no grazing (intensity 1) - occassional migration route (intensity 2) - regular migration route (intensity 3) - frequent migration route (intensity 4) - pasture / supplementary feeding site (intensity 5). Analysis took place at the facilities of AWI between July and October 2022. Radiocarbon measurements were done for selected samples. Radiocarbon dating was carried out using the Mini Carbon Dating System (MICADAS) at AWI Bremerhaven.
DOI: 10.1594/pangaea.141134
title: Carbon14 ages of sediment core GIK1160 from the Rud Hilla delta area, Persian Gulf (Table 2)

description: 14C ages of total sediment or of shells, determined by Geyh, Bundesanstalt für Bodenforschung, Hannover
DOI: 10.1594/pangaea.793025
title: Age determination of sediment core Fersina-2
DOI: 10.1594/pangaea.141135
title: Carbon14 ages of sediment core GIK1165 from the Rud Hilla delta area, Persian Gulf (Table 2)

description: 14C ages of total sediment or of shells, determined by Geyh, Bundesanstalt für Bodenforschung, Hannover
DOI: 10.1594/pangaea.726952
title: (Table 5) Radiocarbon ages on coexisting planktonic foraminifera from sediment core V35-5
DOI: 10.1594/pangaea.793174
title: (Tab. 1) Results of the radiocarbon age dating of wood fragments from well Fersina-1
DOI: 10.1594/pangaea.399071
title: Age determinations on sediment core MK-316
DOI: 10.1594/pangaea.868978
title: Geochemistry and physical properties of permafrost core L14-02
DOI: 10.1594/pangaea.726953
title: (Table 5) Radiocarbon ages on coexisting planktonic foraminifera from sediment core V35-6
DOI: 10.1594/pangaea.841402
title: (Table 1) Age determination of Ceratoporella nicholsoni specimens of the Caribbean Sea

description: DISTANCE [cm] is the distance from rim. For each specimen the first value represents the age of the outermost layer of the skeleton, taken as equal to the sampling year. Sample Pb19-14C is the radiocarbon bomb spike fit described in the text. Distance from rim was measured along the growth axis. Year A.D. is calculated from the age and the year of the measurements (varying from 1997 to 2001 A.D.). Uncertainties of the U-Th dates are internal errors (2 sd) except for sample Ce96-4'. For this sample multiple analyses (n = 5) give an error of about 4% (2sem).
DOI: 10.1594/pangaea.388993
title: Facies log and age determinations of profile UTRD1b from Taymyr Peninsula
DOI: 10.1594/pangaea.399065
title: Age determinations on sediment core L-198
DOI: 10.1594/pangaea.841403
title: (Table 2) Radiocarbon ages of Ceratoporella nicholsoni specimens of Pedro Bank

description: DISTANCE [cm] is the distance from rim. Distance from rim is measured along the growth axis. 'Percentage of corrected modern carbon'is the fraction of 14C relative to the "modern" value (1950 A.D.), corrected for fractionation using the 13C/12C measurements. D14C values were calculated from the corrected percentage of modern carbon using estimates of the true age of the samples taken from the U-Th datings. This age correction is very small (&lt;1% in all samples) so uncertainties introduced by incorrect age estimates are negligible.
DOI: 10.1594/pangaea.186314
title: Radiocarbon age determinations on sediment core ELT11.008-PC
DOI: 10.1594/pangaea.59918
title: INTCAL98

description: The focus of this paper is the conversion of radiocarbon ages to calibrated (cal) ages for the interval 24,00-0 cal BP (Before Present, 0 cal BP = AD 1950), based upon a sample set of dendrochronologically dated tree rings, uranium-thorium dated corals, and varve-counted marine sediment. The 14C age-cal age information, produced by many laboratories, is converted to 14C profiles and calibration curves, for the atmosphere as well as the oceans. We discuss offsets in measured 14C ages and the errors therein, regional 14C age diferences, tree-coral 14C age comparisons and the time dependence of marine reservoir ages, and evaluate decadal vs. single-year 14C results. Changes in oceanic deepwater circulation, especialy for the 16,00-1,00 cal BP interval, are reflected in the Delta14C values of INTCAL98.
description: Supplement to: Stuiver, Minze; Reimer, Paula J; Bard, Edouard; Beck, J Warren; Burr, George S; Hughen, Konrad A; Kromer, Bernd; McCormac, F Gerry; van der Plicht, Johannes; Spurk, Marco (1998): INTCAL98 radiocarbon age calibration, 24,000-0 cal BP. Radiocarbon, 40(3), 1041-1083
DOI: 10.1594/pangaea.756442
title: (Table 3) 40Ar/39Ar step heating and total fusion results from single crystals of muscovite and K-feldspar from samples of ODP Holes 116-717A and 116-718C
DOI: 10.1594/pangaea.819348
title: (Table 1) Radiocarbon ages of sediment core MD99-2294
DOI: 10.1594/pangaea.792650
title: (Appendix A3) U/Th activities and sedimentation rates of ODP Hole 172-1062E

description: DEPTH, sediment [m] is given in rmcd. AGE [ka BP] from d18O.
DOI: 10.1594/pangaea.921798
title: Radiocarbon measurements on tree rings of tree COD-C38
DOI: 10.1594/pangaea.890603
title: Age determinations of Koes Pan sediment sequence (ǁKaras Region, Namibia) by 14C dating of TOC bulk samples

description: Age determinations have been done at sediment samples (bulk TOC) from a pit at Koes Pan (Namibia) during the GeoArchives Campains (Project Spaces).Dating laboratory: Poznan Radiocarbon Laboratory, Poland (Dr. Tomasz Goslar)
DOI: 10.1594/pangaea.710917
title: (Table 1) TIMS U and Th concentrations and isotope ratios of ODP Leg 166 sites

description: AGE is the corrected age
DOI: 10.1594/pangaea.736636
title: Age determination of sediment core GIK17940-2

description: DEPTH, sediment (m) is composite depth
DOI: 10.1594/pangaea.839405
title: (Table 1) Age determination of North Atlantic sediment cores

description: High-resolution sediment cores from the Vøring Plateau, the North Iceland shelf, and the East Greenland shelf have been studied to investigate the stability of major surface currents in the Nordic Seas during the Holocene. Results from diatom assemblages and reconstructed sea-surface temperatures (SSTs) indicate a division of the Holocene into three periods: the Holocene Climate Optimum (9500-6500 calendar (cal) years BP), the Holocene Transition Period (6500-3000 cal years BP) and the Cool Late Holocene Period (3000-0 cal years BP). The overall climate development is in step with the decreasing insolation on the Northern Hemisphere, but regional differences occur regarding both timing and magnitude of SST changes. Sites under the direct influence of the Norwegian Atlantic Current and the Irminger Current indicate SST cooling of 4-5°C from early Holocene to present, compared to 2°C recorded under the East Greenland Current. Superimposed on the general Holocene cooling trend, there is a high-frequency SST variability, which is in the order of 1-1.5°C for the Vøring Plateau and the East Greenland shelf and 2.5-3°C on the North Iceland shelf.
description: Supplement to: Andersen, Catherine; Koç, Nalân; Jennings, Anne E; Andrews, John T (2004): Nonuniform response of the major surface currents in the Nordic Seas to insolation forcing: Implications for the Holocene climate variability. Paleoceanography, 19(2), PA2003
DOI: 10.1594/pangaea.871341
title: Table S30 - Magnetostratigraphy ODP Site 207-1258
DOI: 10.1594/pangaea.807122
title: (Table 2) Details of the AMS 14C age determinations carried out on three sediment cores from Galway Mound

description: Age determination: Leibniz Laboratory for Age Determinations and Isotope Research at the University of Kiel, Germany
DOI: 10.1594/pangaea.763058
title: Contribution of different algae groups to their total biomass and infusoria biomass in under ice water

description: Samples of under ice water were collected at 4 stations not far from the White Sea Biological Station of the Zoological Institute RAS (Chupa Inlet, Kandalaksha Bay) in April 2002. For the first time it was shown that in winter numerous phototrophic and heterotrophic flagellates together with diatoms inhabited water column under sea ice. Abundance and biomass of these small algae was comparable with similar summer data. Biomass of algae in 2-40 m layer in early April 2002 exceeded 300 mg C/m**2, increasing up to 0.69-2.9 g C/m**3 just under ice. Sinking of the algae was insignificant, may be due to active grazing in the thin upper layer of the water column. High abundance of heterotrophic flagellates and dinoflagellates may indicate importance of the microbial food chain. From obtained data it may be concluded that the vegetation season, as well as the season of high activity of nano- and microheterotrophs starts in the White Sea far earlier, than it was supposed before.
description: Supplement to: Ratkova, Tatyana N; Sazhin, Andrey F; Kosobokova, Ksenia Nikolaevna (2004): Unicellular inhabitants of the White Sea underice pelagic zone during the early spring period. Translated from Okeanologiya, 2004, 44(2), 259-266, Oceanology, 44(2), 240-246
DOI: 10.1594/pangaea.820666
title: The inorganic carbon system measured and calculated on Cibicidoides mundulus of sediment core SO213/2_64-2

description: Reconstruction equation: B/Ca = 0.80(D[CO32-]) + 114.5 (R2=0.79)
DOI: 10.1594/pangaea.726950
title: (Table 3) Radiocarbon ages on coexisting planktonic foraminifera from sediment core KNR110-0082GGC
DOI: 10.1594/pangaea.728957
title: (Table 1) TIMS U-Th results from stalagmites and stalactites of the Okshola cave

description: Distance gives the central position of TIMS subsamples along the groth axis of stalagmites. For stalactites from Fata Morgana minimum and maximum refere to cm interval from the active tip. Ages are in kyrs before AD 2000, and errors are 2 sigma.
DOI: 10.1594/pangaea.712834
title: Age determinations of sediment core Fegen_south
DOI: 10.1594/pangaea.836943
title: Age determination and model for Site 202-1234

description: This updated age model for ODP Site 1234 is based on the planktonic foraminiferal ages published in Muratli et al. 2010 (doi:10.1038/ngeo715), and supplemented here by new benthic dates, all re-calibrated using INTCAL 7.0 MARINE13, plus a regional reservoir correction based on Siani et al. 2013 (DOI: 10.1038/ncomms3758).Depth is given in meters composite depth.