cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.817867
title: (Table 1) Sediment ages at DSDP Site 15-147

description: Samples from Holes 147, 147A, and 147B have been dated by the radiocarbon method; ages ranged to 27,000 years ago at about 20 meters sub-bottom. The sedimentation rates were approximately 50 cm/10**3 y. for the last 5000 years and 10 to 75 cm/10**3 y. prior to that.
description: Sediment depth is given in mbsf. Two values indicate the range of depth assignment, using the DSDP convention of measuring from the top of the core down or from the core catcher up. Empty cells = insufficient sample or not determined.
description: Supplement to: Spiker, Elliot C; Simoneit, Bernd R T (1982): Appendix III. Radiocarbon dating of sediments from the Cariaco Trench, Deep Sea Drilling Project Site 147. In: Watkins, JS; Casey Moore, J; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 66, 863-864
DOI: 10.1594/pangaea.820653
title: The inorganic carbon system measured and calculated on Cibicidoides cf. wuellerstorfi of sediment core PS75/105-1

description: Reconstruction equation: B/Ca = 2.27(D[CO32-]) + 152.5 (R2= 0.76)
DOI: 10.1594/pangaea.817626
title: (Table 1) Age determination of Arctic Ocean sediment cores

description: Accelerator mass spectrometer 14C dated stable isotope data from Neogloboquadrina pachyerma in cores raised from the Mendeleyev Ridge and slope provide evidence for significant influx of meltwater to the western Arctic Ocean during the early part of marine oxygen isotope stage 1 (OIS 1) and during several intervals within OIS 3. The strongest OIS 3 meltwater event occurred before ca. 45 ka (conventional radiocarbon age) and was probably related to the deglaciation at the beginning of OIS 3. Major meltwater input to the western Arctic Ocean during the last deglaciation coincides closely with the maximum rate of global sea-level rise as determined from the Barbados sea-level record, demonstrating a strong link between the global record and changes in the central Arctic Ocean. OIS 2, which includes the last glacial maximum, is very condensed or absent in the cores. Abundance and d13C values for N. pachyderma in the middle part of OIS 3 are similar to modern values, indicating high productivity and seasonal ice-free areas along the Arctic margin at that time. These records indicate that the Arctic Ocean was a source of heat and moisture to the northern polar atmosphere during parts of OIS 3.
description: Measured on Neogloboquadrina pachyderma, size fraction &gt;125 µm.
description: Supplement to: Poore, Richard Z; Osterman, Lisa Ellen; Curry, William B; Phillips, R Lawrence (1999): Late Pleistocene and Holocene meltwater events in the western Arctic Ocean. Geology, 27(8), 759-762
DOI: 10.1594/pangaea.727221
title: (Table 1) AMS radiocarbon dates of sediment core GeoB3910-2

description: AMS radiocarbon dates, reservoir age of the surface waters off the coast of Northeast Brazil for two different AMOC strengths (R), two sigma ranges of the calibration using Calib05 with IntCal04, and the probability area covered by these ranges (P). For comparison the calibrated ages used by Jaeschke et al. (2007) are given.Age, minimum/young and Age maximum/old: After Calib05 (Stuiver & Reimer, 1993) using the IntCal04 calibration table (Reimer et al., 2004).
DOI: 10.1594/pangaea.87365
title: (Table 2) Age determination of sediment core PS51/118-3
DOI: 10.1594/pangaea.817609
title: (Table 2) Uranium series results of Villars Cave stalagmite Vil-stm14

description: We present a new high resolution speleothem stable isotope record from the Villars Cave (SW-France) that covers part of marine isotope stage (MIS) 3. The Vil14 stalagmite grew between ~52 and 29 ka. The d13C profile is used as a palaeoclimate proxy and clearly shows the interstadial substages 13, 12 and 11. The new results complement and corroborate previously published stalagmite records Vil9 and Vil27 from the same site. The Vil14 stalagmite chronology is based on 12 Th-U dating by MC-ICP-MS and 3 by TIMS. A correction for detrital contamination was done using the 230Th/232Th activity ratio measured on clay collected in Villars Cave. The Vil14 results reveal that the onset of Dansgaard-Oeschger (DO) events 13 and 12 occurred at ~49.8 ka and ~47.8 ka, respectively. Within uncertainties, this is coherent with the latest NorthGRIP time scale (GICC05-60 ka) and with speleothem records from Central Alps. Our data show an abrupt d13C increase at the end of DO events 14 to 12 which coincides with a petrographical discontinuity probably due to a rapid cooling. As observed for Vil9 and Vil27, Vil14 growth significantly slowed down after ~ 42 ka and finally stopped ~ 29 ka ago where the d13C increase suggests a strong climate deterioration that coincides with both North Atlantic sea level and sea surface temperature drop.
description: Supplement to: Wainer, Karine; Genty, Dominique; Blamart, Dominique; Hoffmann, Dirk L; Couchoud, Isabelle (2009): A new stage 3 millennial climatic variability record from a SW France speleothem. Palaeogeography, Palaeoclimatology, Palaeoecology, 271(1-2), 130-139
DOI: 10.1594/pangaea.91167
title: (Table 2) Age determinations on sediment core PS2206-4

description: Dated material Neogloboquadrina pachyderma, Lab Aarhus, reserv. corr. -550
DOI: 10.1594/pangaea.407216
title: (Table 2) Age determination of sediment core GIK17045-2

description: measured on Globigerina bulloides
DOI: 10.1594/pangaea.820643
title: The inorganic carbon system measured and calculated on Cibicidoides wuellerstorfi of sediment core PS75/105-1

description: Reconstruction equation: B/Ca = 1.39(D[CO32-]) + 175.5 (R2= 0.87)
DOI: 10.1594/pangaea.831456
title: (Table 1) Isotopic ratios of corals from the South China Sea
DOI: 10.1594/pangaea.893446
title: Carbon and oxygen stable isotopes in foraminifera from sediment core POS200/10_7-1 collected at Portuguese Margin, North Atlantic
DOI: 10.1594/pangaea.817599
title: (Table 3) Age determination of sediment cores from the SW Pacific Ocean

description: Eight- to ten-point depth profiles (from 1200 to 4800 m water depth) of oxygen and carbon isotopic values derived from benthic foraminifera, averaged over selected times in the past 160 ka, are presented. The data are from 10 sediment cores off eastern New Zealand, mainly North Chatham Rise. This lies under the Deep Western Boundary Current in the Southwest Pacific and is the main point of entry for several water masses into the Pacific Ocean. The benthic isotopic profiles are related to the structure of water masses at present and inferred for the past. These have retained a constant structure of Lower Circumpolar Deep Water-Upper Circumpolar Deep Water/North Pacific Deep Water-Antarctic Intermediate Water with no apparent changes in the depths of water mass boundaries between glacial and interglacial states. Sortable silt particle size data for four cores are also examined to show that the vigour of the inflow to the Pacific, while variable, appears to have remained fairly constant on average. Among the lowest Last Glacial Maximum values of benthic d13C in the world ocean (-1.03 per mil based on Cibicidoides wüllerstorfi) occurs here at ~2200 m. Comparable values occur in the Atlantic sector of the Southern Ocean, while those from the rest of the Pacific are distinctly higher, confirming that the Southern Ocean was the source for the unventilated/nutrient-enriched water seen here. Oxygen and carbon isotopic data are compatible with a glacial cold deep water mass of high salinity, but lower nutrient content (or better ventilated), below ~3500 m depth. This contrasts with the South Atlantic where unventilated/nutrient-enriched water extends all the way to the sea bed. Comparison with previous studies also suggests that the deeper reaches of the Antarctic Circumpolar Current below ~3500 m are not homogeneous all around the Southern Ocean, with the Kerguelen Plateau and/or the Macquarie-Balleny Ridges posing barriers to the eastward spread of the deepest low-d13C water out of the South Atlantic in glacials. These barriers, combined with inferred high density of bottom waters, restricted inter-basin exchange and allow three glacial domains dominated by bottom waters from Weddell Sea, Adelie Coast and Ross Sea to be defined. We suggest that the Ross Sea was the main source of the deep water entering the Pacific below ~3500 m.
description: Measured on planktonic and benthic foraminifera.
description: Supplement to: McCave, I Nicholas; Carter, Lionel; Hall, Ian R (2008): Glacial–interglacial changes in water mass structure and flow in the SW Pacific Ocean. Quaternary Science Reviews, 27(19-20), 1886-1908
DOI: 10.1594/pangaea.806680
title: (Table 3) Age at DSDP Holes 81-552A, 81-553A and 81-555 glauconites

description: Lambda3=0.581*10**-10yr**-1; Lambda-Beta=4.962*10**-10yr**-1; 40K/K=1.167*10**-2 atom %.
DOI: 10.1594/pangaea.894155
title: Stable oxygen isotope of sediment core EMB046_20-3GC in the Skagerrak
DOI: 10.1594/pangaea.893444
title: Carbon and oxygen stable isotopes in foraminifera from sediment core POS200/10_6-1 collected at Portuguese Margin, North Atlantic
DOI: 10.1594/pangaea.907722
title: (Table S1) Radiocarbon ages in benthonic and planktonic foraminifera of sediment cores from the Chilean margin, beetween ~31°S and ~36°S
DOI: 10.1594/pangaea.733250
title: (Table 1) Radiocarbon age data of sediment core GIK17748-2
DOI: 10.1594/pangaea.779861
title: Age determination of sediment core PS75/234-1 (Table 1b)
DOI: 10.1594/pangaea.744550
title: Geochemistry on sediment profile Co1010
DOI: 10.1594/pangaea.735788
title: (Table S1) Radiocarbon data of sediment core SO161/5 22SL

description: At the end of the Last Glacial Maximum (19,000 to 11,000 years ago), atmospheric carbon dioxide concentrations rose while the Delta14C of atmospheric carbon dioxide declined**1, 2. These changes have been attributed to an injection of carbon dioxide with low radiocarbon activity from an oceanic abyssal reservoir that was isolated from the atmosphere for several thousand years before deglaciation**3. The current understanding points to the Southern Ocean as the main area of exchange between these reservoirs4. Intermediate water formed in the Southern Ocean surrounding Antarctica would have then carried the old carbon dioxide signature to the lower-latitude oceans**5, 6. Here we reconstruct the Delta14C signature of Antarctic Intermediate Water off the coast of Chile for the past 20,000 years, using paired 14C ages of benthic and planktonic foraminifera. In contrast to the above scenario, we find that the delta14C signature of the Antarctic Intermediate Water closely matches the modelled surface ocean Delta14C, precluding the influence of an old carbon source. We suggest that if the abyssal ocean is indeed the source of the radiocarbon-depleted carbon dioxide, an alternative path for the mixing and propagation of its carbon dioxide may be required to explain the observed changes in atmospheric carbon dioxide concentration and radiocarbon activity.
description: UCIAMS-64329: The large error in this measurement is due to the very small sample size (15 µg C)
description: Supplement to: De Pol-Holz, Ricardo; Keigwin, Lloyd D; Southon, John R; Hebbeln, Dierk; Mohtadi, Mahyar (2010): No signature of abyssal carbon in intermediate waters off Chile during deglaciaition. Nature Geoscience, 3(3), 192-195
DOI: 10.1594/pangaea.777215
title: (Table 4) Age determination and argon isotope ratios of igneous rocks of ODP Hole 128-794D
DOI: 10.1594/pangaea.712026
title: (Table 3) Age determination of sediment core GeoB6729-1

description: Analyses of Lophelia pertusa
DOI: 10.1594/pangaea.714858
title: Age determination of sediment core PS69/273-2
DOI: 10.1594/pangaea.765161
title: (Table 4) Radiocarbon datings and 87Sr/86Sr ratios in samples from carbonate mounds of the Lost City hydrothermal field
DOI: 10.1594/pangaea.831639
title: 05. 14C-AMS dates from sediment core GeoB7010-2
DOI: 10.1594/pangaea.869450
title: (Table S2) I/Ca ratios, CaCO3 content and stable isotope rates of foraminifera at sediment cores PS2547-3 and JR179-TC493

description: NOTE: On 2018-08-20 it was found, that the data uploaded here for TC493 was shifted compared to the original version. A new and correct version was therefore uploaded, please refer to that version (see "Replaced by" reference)!
DOI: 10.1594/pangaea.773803
title: Radiocarbon dating of mollusc shells of sediment core Svanic90_9004
DOI: 10.1594/pangaea.669562
title: (Table 5) Luminescence-dating of sediment core PS2195-4 of the Arctic Ocean
DOI: 10.1594/pangaea.733964
title: (Table 2) Age determination of sediment core PS1951-1
DOI: 10.1594/pangaea.820650
title: The inorganic carbon system measured and calculated on Cibicidoides cf. wuellerstorfi of sediment core PS75/103-1

description: Reconstruction equation: B/Ca = 2.27(D[CO32-]) + 152.5 (R2= 0.76)
DOI: 10.1594/pangaea.820656
title: The inorganic carbon system measured and calculated on Cibicidoides cf. wuellerstorfi of sediment core SO213/2_68-1

description: Reconstruction equation: B/Ca = 2.27(D[CO32-]) + 152.5 (R2= 0.76)
DOI: 10.1594/pangaea.835445
title: (Table 2) Age determination of sediment core PS69/251-1
DOI: 10.1594/pangaea.835453
title: (Table 2) Age determination of sediment core PS69/297-1
DOI: 10.1594/pangaea.835433
title: (Table 2) Age determination of sediment core JR141_BC451
DOI: 10.1594/pangaea.835449
title: (Table 2) Age determination of sediment core PS69/288-3
DOI: 10.1594/pangaea.59564
title: Stable isotope analysis on sediment core GIK23056-2
DOI: 10.1594/pangaea.827280
title: (Table 2) Age determination of Florida Straits sediment cores

description: The waters passing through the Florida Straits today reflect both the western portion of the wind-driven subtropical gyre and the northward flow of the upper waters which cross the equator, compensating North Atlantic Deep Water export as part of the large-scale Atlantic meridional overturning circulation. It has been postulated from various lines of evidence that the overturning circulation was weaker during the Younger Dryas cold event of the last deglaciation. We show here that the contrast in the oxygen isotopic composition of benthic foraminiferal tests across the Florida Current is reduced during the Younger Dryas. This most likely reflects a decrease in the density gradient across the channel and a decrease in the vertical shear of the Florida Current. This reduced shear is consistent with the postulated reduction in the Atlantic meridional overturning circulation. We find that the onset of this change in density structure and flow at the start of the Younger Dryas is very abrupt, occurring in less than 70 years.
description: 14C age calibrated using Calib 5.0.2 and Marine04 curve if younger than 26,000 years B.P.; otherwise, Fairbanks0107 with a 400 year surface reservoir age was used (http://radiocarbon.ldeo.columbia.edu/research/radcarbcal.htm).
description: Supplement to: Lynch-Stieglitz, Jean; Schmidt, Matthew W; Curry, William B (2011): Evidence from the Florida Straits for Younger Dryas ocean circulation changes. Paleoceanography, 26(1), PA1205
DOI: 10.1594/pangaea.816897
title: (Table 2) Age determination of sediment core MD04-2845

description: High resolution multiproxy analysis (microcharcoal, pollen, organic carbon, Neogloboquadrina pachyderma (s), ice rafted debris) of the deep-sea record MD04-2845 (Bay of Biscay) provides new insights for understanding mechanisms of fire regime variability of the last glacial period in western France. Fire regime of western France closely follows Dansgaard-Oeschger climatic variability and presents the same pattern than that of southwestern Iberia, namely low fire regime associated with open vegetation during stadials including Heinrich events, and high fire regime associated with open forest during interstadials. This supports a regional climatic control on fire regime for western Europe through fuel availability for the last glacial period. Additionally, each of Heinrich events 6, 5 and 4 is characterised by three episodes of fire regime, with a high regime bracketed by lower fire regime episodes, related to vegetational succession and complex environmental condition changes.
description: Supplement to: Daniau, Anne-Laure; Sanchez Goñi, Maria Fernanda; Duprat, Josette M (2009): Last glacial fire regime variability in western France inferred from microcharcoal preserved in core MD04-2845, Bay of Biscay. Quaternary Research, 71(3), 385-396
DOI: 10.1594/pangaea.59571
title: Stable isotope analysis on sediment core GIK23062-3
DOI: 10.1594/pangaea.770723
title: (Tabel 1) AMS 14C radiocarbon dates for multicore GeoB6007-1 and gravity core GeoB6007-2

description: Lab ID = (KIA) Leibniz-Laboratory for Radiometric Dating and Stable Isotope Research (OS) The National Ocean Sciences Accelerator. Mass Spectrometry Facility (NOSAMS).
DOI: 10.1594/pangaea.823588
title: (Table 1) Radiocarbon results from this study

description: The Indonesian Arc represents the subduction of the Indian-Australian plate beneath Asia. It has been the scene of catastrophic tectonic activity, including the recent 2004 M=9.1 Aceh earthquake and resulting Indian Ocean tsunami. We have dated planktonic forams associated with historic tephras (Tambora, 1815 and Krakatau, 1883) in marine sediment cores to determine radiocarbon reservoir ages for 2 locations along the arc. Our best estimates for 19th century regional reservoir corrections (DeltaR) are +90 ± 40 yr for surface-dwelling species and +220 ± 40 yr for mixed planktic assemblages containing some upper thermocline species, but scatter in the data suggests that past surface reservoir ages may have varied by about ±100 yr. We used the results of this study to investigate a proposed very large AD 535 eruption at or near Krakatau. We find no evidence for ash from such an eruption, and although this is negative evidence, we consider it sufficiently strong to rule out any possibility that one took place.
description: a: Mixed pl. = mixed planktics (residuals after Ruber and Sacculifer picked - see text); b: Size in mg of carbon; c: Assumed calendarage ranges for 1-cm layers centered on the depths shown (see text).
description: Supplement to: Southon, John N; Mohtadi, Mahyar; De Pol-Holz, Ricardo (2013): Planktic foram dates from the Indonesian Arc: Marine 14C reservoir ages and a mythical AD 535 volcanic eruption. Radiocarbon, 55(2-3), 1164-1172
DOI: 10.1594/pangaea.267753
title: Age determinations on sediment core PS1535-8
DOI: 10.1594/pangaea.868356
title: (Table 1) Radiocarbon ages of sediment cores GeoB16601-6 and GeoB16602-4

description: a: Measured at the Keck Carbon Cycle Accelerator Mass Spectrometry Facility (UCIAMS), Earth System Science Department, University of California, Irvine, USA.b: All raw radiocarbon dates were converted to 2Sigma calendar ages with the CALIB 7.1.0 software using the MARINE13.14C calibration dataset (Reimer et al., 2013) without a further adjustment for a regional 14C reservoir age (DeltaR, deviation from the average global reservoir age of about 400 years).c: 2Sigma enclosing 95.4% of probability distribution.
DOI: 10.1594/pangaea.820651
title: The inorganic carbon system measured and calculated on Cibicidoides cf. wuellerstorfi of sediment core PS75/104-1

description: Reconstruction equation: B/Ca = 2.27(D[CO32-]) + 152.5 (R2= 0.76)
DOI: 10.1594/pangaea.820659
title: The inorganic carbon system measured and calculated on Cibicidoides cf. wuellerstorfi of sediment core SO213/2_84-2

description: Reconstruction equation: B/Ca = 2.27(D[CO32-]) + 152.5 (R2= 0.76)
DOI: 10.1594/pangaea.733961
title: (Table 2) Age determination of sediment core PS1920-1
DOI: 10.1594/pangaea.81500
title: (Table 2) Age model of sediment core PS2028-2
DOI: 10.1594/pangaea.807864
title: Table 2: Age information for the analyzed cores

description: Five plankton groups, including diatoms, radiolarians, coccolithophores, foraminifers, and dinoflagellate cysts, were synoptically analyzed in six sediment cores and two sediment traps from the Norwegian-Greenland Sea and the North Atlantic in order to provide more detailed insights into the paleoclimatic and paleoceanographic evolution and the development of plankton assemblages of the northern North Atlantic during the last 15,000 years. Based on Q-mode factor analyses, cold, warm, transitional, and relict assemblages were calculated for each of the plankton groups. Data from the different plankton groups complement one another, although they are not always consistent. However, the multiple plankton-group data set is able to bridge intervals in which single groups lack preservation or the ability to react to changes. Synoptically interpreted, the results provide a detailed picture of the response of plankton assemblages to environmental changes during the time period investigated, which includes the B0lling/Aller0d interstadial, the Younger Dryas cold spell, Termination IB, and, in all likelihood, also the "8,200 Event", and the Hypsithermal (approximately 8-4 14C ky BP).
description: Supplement to: Hass, H Christian; Andruleit, Harald; Baumann, Astrid; Baumann, Karl-Heinz; Kohly, Alexander; Jensen, Stefan; Matthiessen, Jens; Samtleben, Christian; Schäfer, Priska; Schröder-Ritzrau, Andrea; Thiede, Jörn (2001): The potential of synoptic plankton analyses for paleoclimatic investigations: five plankton groups from the Holocene nordic seas. In: Schäfer, W; Ritzrau, M; Schlüter & J. Thiede (eds.) The Northern North Atlantic: A Changing Environment, Springer Verlag, Berlin, 500 pp, 291-318
DOI: 10.1594/pangaea.841543
title: (Table 1) Age control points of sediment cores JM97-948/2A and MD95-2011

description: Late Holocene sea surface ocean conditions of the eastern Norwegian Sea (Vøring Plateau) are inferred from planktic stable isotopes and planktic foraminiferal assemblage changes in cores JM97-948/2A and MD95-2011 (66.97°N, 7.64°E). Strong covariance between the planktic stable oxygen isotopic record and abundance changes of N. pachyderma (sin) show that major changes in surface ocean conditions are reflected both in the geochemical composition of the foraminiferal tests as well as in the composition of the foraminiferal fauna. Surface ocean conditions warmer than present were common during the past 3000 years. During the so-called Medieval Warm Period, surface conditions were highly variable with marked changes in sea surface temperature. The warmest sea surface temperatures during this period occurred between 800 and 550 years BP (0 BP = AD 2000). Climatic deterioration, recorded as decreases in sea surface temperature, occurred at about 2750, 1550, 400, and 100 years BP. The cooling events at about 2750 and 1550 years BP appear to correlate with increases in ice-rafted debris in the North Atlantic. Based on the results from JM97-948/2A and MD95-2011, the onset of the Little Ice Age cooling trend seems to have occurred around 700-600 years BP. Faunal changes indicate two cooling events during the Little Ice Age (at 400 and 100 years BP) that correspond to decreases in Fennoscandian summer temperatures and increases in ice-rafted debris in the eastern North Atlantic.
description: AMS dating on the planktonic foraminifer Neogloboquadrina pachyderma (dextral). Radiocarbon ages were calibrated using CALIB 4.3 in conjunction with INTCAL98 (Stuiver et al., 1998). A 400-year correction for the marine reservoir effect was applied. Samples KIA5600 and KIA3927 not used in the age-depth model.
description: Supplement to: Andersson, Carin; Risebrobakken, Bjørg; Jansen, Eystein; Dahl, Svein Olaf (2003): Late Holocene surface ocean conditions of the Norwegian Sea (Voring Plateau). Paleoceanography, 18(2), 1044
DOI: 10.1594/pangaea.897920
title: (Table 1) AMS radiocarbon analyses of bulk TOC for GeoB8323-2, with additional dates from Herbert and Compton (2007)

description: Ages were calibrated using OXCAL software (Bronk Ramsey, 2001) and the Marine13.14c model (Reimer et al., 2013). An additional reservoir age of 146 ± 14C years (Dewar et al., 2012) was used.
DOI: 10.1594/pangaea.722545
title: (Table 2) Ar-Ar results for minerals from ODP Hole 173-1068A
DOI: 10.1594/pangaea.87368
title: (Table 2) Age determination of sediment core PS51/154-11