cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.763436
title: Tab. 1: Rb-Sr data on metasediments in the Shackleton Range

description: Summary: The stratigraphy of the Shackleton Range established by Stephenson (1966) and Clarkson (1972) was revised by results of the German Expedition GEISHA 1987/88. The "Turnpike Bluff Group" does not form a stratigraphic unit. The stratigraphic correlation of its formations is still a matter of discussion. The following four formations are presumed to belong to different units: The Stephenson Bastion Formation and Wyeth Heights Formation are probably of Late Precambrian age. The Late Precambrian Watts Needle Formation, which lies unconformably on the Read Group, is an independant unit which has to be separated from the "Turnpike Bluff Group". The Mount Wegener Formation has been thrusted over the Watts Needle Formation. Early Cambrian fossils (Oldhamia sp., Epiphyton sp., Botomaella (?) sp. and echinoderms) were found in the Mt. Wegener Formation in the Read Mountains.The Middle Cambrian trilobite shales on Mount Provender, which form the Haskard Highlands Formation, are possibly in faulted contact with the basement complex (Pioneers and Stratton Groups). They are overlain by the Blaiklock Glacier Group, for which an Ordovician age is indicated by trilobite tracks and trails, low inclination of the paleomagnetic field and the similarity to the basal units of the Table Mountain Quartzite in South Africa.The Watts Needle Formation represents epicontinental shelf sediments, the Mount Wegener Formation was deposited in a (continental) back-arc environment, and the Blaiklock Glacier Group is a typical molasse sediment of the Ross Orogen.
description: NBS 987 = 0.71023 ± 0.00007, analytical error at the 95% confidence level is ± 2% for 87Rb/86Sr and ± 0.06% for 87Sr/86Sr. Quoted errors are at the level of 95% confidence. Decay constants as in Steiger & Jäger (1977). *normalized to 86Sr/88Sr=0.1194; samples 88-155, 88-108 omitted for regression calculation.
description: Supplement to: Buggisch, Werner; Kleinschmidt, Georg; Höhndorf, Axel; Pohl, Jean (1994): Stratigraphy and facies of sediments and low-grade metasediments in the Shackleton Range, Antarctica. Polarforschung, 63(1), 9-32
DOI: 10.1594/pangaea.700142
title: (Table 1) Age determination of sediment core MD06-2986
DOI: 10.1594/pangaea.923891
title: Age determination of sediment core MD10-3340
DOI: 10.1594/pangaea.756223
title: Tab. 1: Chupa Inlet, Kandalaksha Bay of the White Sea. Population density of the dominant boreal copepod species and daily pellet carbon flux

description: Data on the zooplankton community structure, gut evacuation rate and carbon content of zooplankton faecal pellets were used for assessing the contribution of zooplankton to vertical carbon fluxes in the White and Kara Seas. The results revealed strong regional and seasonal variations of pellet carbon input related to differences in structure and dynamics of the zooplankton communities in the regions studied. In the deep regions of the White Sea, maximum daily pellet carbon flux from the 0-50 m layer was observed in the spring. It reached 98 mg Corg m-2 day-1 and coincided with a strong predominance of the large arctic herbivorous copepod Calanus glacialis in the surface layers. In summer and fall, it decreased by 1 to 2 orders of magnitude due to migration of this copepod to its overwintering depths. In contrast, in the shallow coastal regions, the pellet production was low in spring, gradually increased during summer and reached its maximum of 138 mg Corg m-2 day-1 by late summer to beginning of autumn. Such a seasonal pattern was in accordance with the seasonal variation of abundance of major pellet producers, the small boreal copepods Acartia bifilosa, Centropages hamatus, and Temora longicornis. In the estuarine zone of the Kara Sea, the pellet flux was mostly formed by pellets of brackish-water omnivorous copepods. It varied from 35 mg Corg m-2 day-1 in 1997 to 96 mg Corg m-2 day-1 in 1999. In the central Kara Sea with its typical marine community, the daily flux reached 125 mg Corg m-2 day-1 in summer. The results of our calculations indicate that both in the White and Kara seas zooplankton pellet carbon contributes up to 30 % to the total carbon flux during particular seasons.
description: Total pellet carbon flux from 5 June to 21 September, 2002: 579.7 mg/m**2/day
description: Supplement to: Kosobokova, Ksenia Nikolaevna; Martynova, Daria M; Prudkovsky, Andrey (2006): Contribution of zooplankton to vertical carbon fluxes in the Kara and White Seas. Polarforschung, 75(2-3), 77-82
DOI: 10.1594/pangaea.833658
title: Radiocarbon datings on benthic forminifera of sediment core SO213/2_79-2
DOI: 10.1594/pangaea.875941
title: (Table 1) AMS radiocarbon analyses of bulk TOC and carbonate material from sediment core GeoB18308-1

description: Depending on sediment type (terrestrial or marine identified via BIT-Index) the Southern Hemisphere calibration curve (SHCal13) (Hogg et al., 2013) or the modelled ocean average curve (Marine13) (Reimer et al., 2013) were used. To the later a DeltaR of 146 ± 85 14C (Dewar et al. 2012) was applied.
DOI: 10.1594/pangaea.820826
title: Boron/Calcium ratio measured on Cibicidoides wuellerstorfi and Uvigerina spp. of sediment core PS75/103-1, replicate measurements
DOI: 10.1594/pangaea.835435
title: (Table 2) Age determination of sediment core JR141_VC453
DOI: 10.1594/pangaea.831403
title: (Table S2b) Concentrations and accumulation rates of CaCO3 and biogenic barium for ODP Hole 113-689B

description: DEPTH, sediment/rock [m] is given in mbsf.
DOI: 10.1594/pangaea.422445
title: Age determination of sediment core PG1173
DOI: 10.1594/pangaea.777132
title: (Table 2) Age determination of plagioclase, biotite and hornblende from blue tuffs an related strata of ODP Leg 127 samples

description: Plagioclase grains from Site 794B were degassed at 0.3 W laser power output before fusion to help remove atmospheric Ar contamination. These data are corrected for mass discrimination, radioactive decay nucleogenic interferences, procedural blanks, and atmospheric contamination. 37Ar,38 Ar, and 39Ar as used to refer to the proportion of these isotopes derived by neutron activation of Ca, Cl, and K, respectively. Reported errors reflect uncertainties accrued from all corrections plus regression of isotopic data. Errors in the apparent ages do not reflect uncertainty in the age of the standard.
DOI: 10.1594/pangaea.821011
title: Boron/Calcium and Magnesium/Calcium ratios measured on Cibicidoides mundulus of sediment core PS75/101-2, trace element profile
DOI: 10.1594/pangaea.720970
title: (Table 4) K-Ar results from DSDP Hole 2-10
DOI: 10.1594/pangaea.744778
title: (Table 1) AMS radiocarbon ages from ODP Hole 169-1034B

description: High-resolution pollen analysis of laminated marine sediments from ODP Hole 1034B in Saanich Inlet, British Columbia reveals changes in vegetation and inferred climate during the Holocene. Four main pollen zones are discerned using constrained cluster analysis. Although the timing of major vegetation changes at the Saanich Inlet is similar to other study sites in the Pacific Northwest, the composition of pollen assemblage zones is different from the mainland sites. Vegetation assemblages reconstructed from the pollen and spore record include a Douglas-fir (Pseudotsuga menziesii) parkland with abundant grass (Poaceae) and bracken (Pteridium) between 11,450 and 8300 BP (all ages are calibrated calendar years), oak (Quercus) savanna or parkland with high grass and bracken (8300-7040 BP), a mixed deciduous/coniferous forest with oak, western hemlock (Tsuga heterophylla) and Douglas-fir (7040-5750 BP), and the development of modern coastal temperate forest with the marked expansion of cedar (Cupressaceae), western hemlock, spruce (Picea) and Douglas-fir (5750-1050 BP). Climatic periods inferred from the cores include an early Holocene warm/dry interval (11,450-8300 BP), a warm period with mild winters (8300-7040 BP), a period of transitional mid-Holocene climate (7040-5750 BP), and the advent of a relatively cool/wet neoglacial climate after 5750 BP. Modern conifer forests and oak savannas became established by about 3800 BP. The Saanich Inlet pollen record indicates that vegetation and inferred climate change was particularly rapid between 8700 and 8300 BP when grass and bracken abruptly decrease and oak becomes a significant component of the paleovegetation. Because neoglacial conditions have prevailed from 3800 years to present in the Pacific Northwest, factors other than climate, such as anthropogenic modification of the landscape, may be responsible for the persistence of oak savannas.
description: Radiocarbon and calibrated dates provided by Shipboard Scientific Party (1998, doi:10.2973/odp.proc.ir.169s.102.1998)
description: Supplement to: Pellatt, Marlow G; Hebda, R J; Mathewes, Rolf W (2001): High-resolution Holocene vegetation history and climate from Hole 1034B, ODP Leg 169S, Saanich Inlet, Canada. Marine Geology, 174(1-4), 211-226
DOI: 10.1594/pangaea.779622
title: Age determination of sediment core MSM05/5_712-2
DOI: 10.1594/pangaea.820641
title: The inorganic carbon system measured and calculated on Cibicidoides wuellerstorfi of sediment core PS75/104-1

description: Reconstruction equation: B/Ca = 1.39(D[CO32-]) + 175.5 (R**2 = 0.87)
DOI: 10.1594/pangaea.886454
title: Age determination of sediment core CHANALE3, Chanaleilles, France

description: This dataset was archived on 2018-02-19 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.888875
title: Age determination of sediment core LL13, Langarud, Iran

description: This dataset was archived on 2018-04-23 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.776036
title: (Table 4) Radiocarbon age of carbonate nodules from the Gulf of California at Station DM9-666

description: New data on phosphorites collected by dredging and trawling at depths from 2700 to 520 m in the open Atlantic Ocean (i.e. outside of the shelf and the continental slope) are reported. Aphanitic, granular, brecciated, and conglomerate-like types are distinguished among the phosphorites. A comparison of the studied phosphorites with ones from the Atlantic shelf of Africa and from seamounts of other oceans is made.
DOI: 10.1594/pangaea.886474
title: Age determination of sediment core LASTIOUL, Lastioulles, France

description: This dataset was archived on 2018-02-19 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.761486
title: (Table 2) Paleoelevations of summits of Pacific seamounts 35 million years ago
DOI: 10.1594/pangaea.848489
title: (Table 1) Results of the AMS 14C dating of samples from different alas sections, Kurungnakh Island, Lena Delta
DOI: 10.1594/pangaea.734035
title: (Table 2) Age determination of sediment core INMD-109BX

description: Determinations by Beta-Analysical Laboratorie, Coral Gables, Fla. Bulk CaCO3. Half-life 5568 yr. Years before A.D. 1950 +/- 1 SD
DOI: 10.1594/pangaea.388901
title: Age determinations of profile Led1b from Taymyr Peninsula
DOI: 10.1594/pangaea.740900
title: Age determination of sediment core TG8, Delta del Rio Besos, Spain

description: This dataset was archived on 2010-05-11 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.733958
title: (Table 2) Age determination of sediment core PS1726-1
DOI: 10.1594/pangaea.860744
title: Age determination of sediment core PS75/085-1
DOI: 10.1594/pangaea.802677
title: (Table 1) Radiocarbon dates from the Lake Temje sediment core

description: This data set contains radiocarbon age data of sediment core PG1746 from Lake Temje (Yakutia, Russia). Lake Temje (62°03′ N, 129°29′ E) is a thermokarst lake located 13 km east of Yakutsk on the Magane Terrace, west of the Lena River at ca. 208 m a.s.l. The lake is shallow, with a maximum depth of 75 cm and no permanent inflows and outflows. The 3.8 m lake sediment core PG1746 was recovered as part of a joint Russian-German expedition of the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI, Germany, Potsdam) in cooperation with the North Eastern Federal State University (NEFU, Russia, Yakutsk) to Yakutia in July 2004. Sampling was performed from two connected rubber boats in the central part of Lake Temje at 70 cm water depth with a rod-operated half-tube corer (Russian peat corer: 5 cm in diameter, 100 cm long sampler). Overlapping core sections yielded a 380-cm-long sediment-core sequence. The core sections were described and sampled at 5-cm intervals in the field. Five radiocarbon dates were determined from macroscopic plant remains collected from the lake sediments. The radiocarbon dating was performed in the Leibniz-Laboratory for Radiometric Dating and Stable Isotope Research, Kiel University, using the radiocarbon Accelerator Mass Spectrometry (AMS) 14C method.
DOI: 10.1594/pangaea.874437
title: (Table 2) Age determination of sediment cores from the shallow aquifer in southwest Bangladesh
DOI: 10.1594/pangaea.883951
title: (Table 2) Uranium-series dating obtained from cold-water corals

description: Labcode: IUP: Institute for Environmental Physics, University of Heidelberg, Germany; GIF:Laboratoire des Sciences du Climat et de l'Environment, Gif-sur-Yvette, France.d234U(M): Measured 234U/238U activity ratios (d234U(M)) are presented as deviation per mil from the equilibrium value. d234U(0): Decay corrected 234U/238U activity ratios (d234U(0)) are calculated from the given ages and with d234U: 2.8263x10^-6 yr^-1.Cold-water coral ages, isotope concentration and ratios. All U-series datings were obtained from Lophelia pertusa.
DOI: 10.1594/pangaea.722546
title: (Table 2) Ar-Ar results for minerals from ODP Hole 173-1069A
DOI: 10.1594/pangaea.888868
title: Age determination of sediment core LEERDAM1, Leerdam, Netherlands

description: This dataset was archived on 2018-04-23 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.738278
title: (Table 1) Arctic radiocarbon dates from sediment core PS1230-1

description: Ice sheets in the North American Arctic and, to a lesser extent, those in northern Eurasia calved large quantities of icebergs that drifted through Fram Strait into the Greenland Sea several times during the late Pleistocene. These icebergs deposited Fe oxide grains (45-250 mm) and coarse lithic clasts &gt;250 mm matched to specific circum-Arctic sources. Four massive Arctic iceberg export events are identified from the Laurentide and the Innuitian ice sheets, between 14 and 34 ka (calendar years) in a sediment core from Fram Strait. These relatively short duration (&lt;1-4 kyr) events contain 3-5 times the background levels of Fe oxide grains. They began suddenly, as indicated by a steep rise in the number of grains matched to an ice sheet source, suggesting rapid purges of ice through Fram Strait, due perhaps to collapse of ice sheets. The larger events from the northwestern Laurentide ice sheet are preceded by events from the Innuitian ice sheet. Despite the chronological uncertainties, the Arctic export events appear to occur prior to Heinrich events.
description: Supplement to: Darby, Dennis A; Bischof, Jens; Spielhagen, Robert F; Marshall, Steven A; Herman, Stephen W (2002): Arctic ice export events and their potential impact on global climate during the late Pleistocene. Paleoceanography, 17(2), 1025
DOI: 10.1594/pangaea.842564
title: (Table 3) Results of the 210Pb/137Cs dating for lake 11-CH-17
DOI: 10.1594/pangaea.888873
title: Age determination of sediment core LIMAGNE1, Limagne, France

description: This dataset was archived on 2018-04-23 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.733065
title: (Table 8) Age model for sediment core MD99-2339
DOI: 10.1594/pangaea.357045
title: Paleoecological investigation of Hessische Senke at site EL09
DOI: 10.1594/pangaea.734032
title: (Table 2) Age determination of sediment core INMD-097BX

description: Determinations by Beta-Analysical Laboratorie, Coral Gables, Fla. Bulk CaCO3. Half-life 5568 yr. Years before A.D. 1950 +/- 1 SD
DOI: 10.1594/pangaea.728860
title: (Table 2) Age determination of sediments from lake basins near Polyarny, Russia

description: A relative sea-level curve for the Holocene is constructed for Polyarny on the Kola Peninsula, northwest Russia. The curve is based on 18 radiocarbon dates of isolation contacts, identified from lithological and diatomological criteria, in nine lake basins situated between 12 and 57 m a.s.l. Most of the lakes show a conformable, regressive I–II–III (marine–transitional–freshwater) facies succession, indicating a postglacial history comprising an early (10,000–9000 radiocarbon years BP) phase of rapid, glacio-isostatically induced emergence (~5 cm/year) and a later phase (after 7000 years BP,) having a moderate rate of emergence (&lt;0.5 cm/year). Three lakes together record a phase of very low rate of emergence or slight sea-level rise at a level of ~27 m a.s.l., between 8500 and 7000 years BP, which correlates with the regional Tapes transgression. Pollen stratigraphy in the highest lake shows that the area was deglaciated before the Younger Dryas and that previously reconstructed Younger Dryas glacier margins along the north Kola coast lie too far north
description: Sample positions are estimated from map, elevation ist the treshold elevation
description: Supplement to: Corner, Geoffrey D; Kolka, Vasili V; Yevzerov, Vladimir Y; Møller, Jakob J (2001): Postglacial relative sea-level change and stratigraphy of raised coastal basins on Kola Peninsula, northwest Russia. Global and Planetary Change, 31(1-4), 155-177
DOI: 10.1594/pangaea.734037
title: (Table 2) Age determination of sediment core INMD-111BX

description: Determinations by Beta-Analysical Laboratorie, Coral Gables, Fla. Bulk CaCO3. Half-life 5568 yr. Years before A.D. 1950 +/- 1 SD
DOI: 10.1594/pangaea.728838
title: (Table 1) Age determination of Cape Shpindler, Yugorski Peninsula, northwest Russia

description: Depositional environments, stratigraphic relations, and 35 new AMS 14C dates at Cape Shpindler, Yugorski Peninsula, help constrain the late Pleistocene glacial and environmental history of the southern Kara Sea region. Fifteen- to fifty-meter-high coastal exposures reveal a complex package of shallow marine, fluvial, glacial, and postglacial deposits, and are documented here in a 19-km-long cross-section and eight vertical sections. The shallow marine (Unit A), estuarine or prodeltaic (Unit B), and fluvio-deltaic (Unit C) deposits contain an interglacial molluscan fauna, yield radiocarbon dates greater than 40 ka, and may correspond with a regional sea-level highstand during the Eemian. These units are overlain by a diamicton (Unit D), and are pervasively deformed by folds and low- to high-angle faults into a stacked glaciotectonic accretionary complex. The diamicton (Unit D) is a subglacial till, and associated massive ground ice with deformed debris bands (Unit E) appears to be relict glacier ice. Glaciotectonic structures document both southward- and northward-directed glacier movement. Above the till and associated glaciotectonic horizons lies 0- to 11-m-thick postglacial deposits of peatland, eolian, fluvial, and primarily lacustrine origin (Unit F). The postglacial deposits yield radiocarbon ages of 12.8 to 0.8 ka. Thus, at least one regional glaciation is prominently represented in the stratigraphy, and occurred probably after the Eemian but before 12.8 ka. We infer that the bulk of the glacial record corresponds with southward advance by an early Weichselian Kara Sea Ice Sheet, in agreement with other recently documented, regional records from Yamal Peninsula and the Pechora Basin. The timing and source of northward-directed glacier ice are less well constrained. Across the broad expanse of the Eurasian Arctic, Quaternary stratigraphy is still sparsely documented. The new data from Cape Shpindler fill a spatial gap in paleoenvironmental research.
description: Supplement to: Manley, William F; Lokrantz, Hanna; Gataullin, Valery; Ingólfsson, Ólafur; Forman, Steven L; Andersson, Torbjörn (2001): Late Quaternary stratigraphy, radiocarbon chronology, and glacial history at Cape Shpindler, southern Kara Sea, Arctic Russia. Global and Planetary Change, 31(1-4), 239-254
DOI: 10.1594/pangaea.728795
title: (Table 1) Luminescence age determination of sediments from the Arkhangelsk area

description: The Arkhangelsk area lies in the region that was reached by the northeastern flank of the Scandinavian ice sheet during the last glaciation. Investigations of Late Pleistocene sediments show interglacial terrestrial and marine conditions with sea level up to 52 m above the present level. An unconformity in the stratigraphy suggests a hiatus representing the Early Valdaian (Weichselian) and the beginning of the Middle Valdaian. This unconformity could be related to a low base level and isostatic depression of the area north of Arkhangelsk, either caused by ice masses advancing from the Kara and Barents ice sheets and/or to Scandinavian ice over the Kola Peninsula. During Middle Valdaian, from c. 66 ka BP, until the advance of the Late Valdaian glacier, c. 17-16 ka BP, peat formation, and northward fluvial sedimentation occurred coexisting with permafrost conditions in a later phase. Before the glacier advance, the base level rose and thick vertical accumulations of fluvial sediments were formed. Associated with this glacier advance from the north-northwest, ice damming occurred. Fluvial drainage was opposite to the present drainage pattern and deposition appeared in glaciolacustrine ponds in the area outside the limit of the glaciation. After the deglaciation that started c. 15 ka BP, permafrost conditions and downwasting of buried stagnant glacier ice prevailed until at least 10.7 ka BP.
description: Further age determinations see Larsen et al. (1999) dataset: doi:10.1594/PANGAEA.57305
description: Supplement to: Lyså, Astrid; Demidov, Igor; Houmark-Nielsen, Michael; Larsen, Eiliv (2001): Late Pleistocene stratigraphy and sedimentary environment of the Arkhangelsk area, northwest Russia. Global and Planetary Change, 31(1-4), 179-199
DOI: 10.1594/pangaea.811427
title: (Table 1) K-Ar age determinations on biotite from coarse sand within DSDP Sample 72-516F-76-4,107-115

description: Qualitative petrographic study of selected clastic horizons within the Eocene section of Hole 516F has revealed the presence of abundant fine-grained lithic fragments, probably volcanic, along with coarser fragments of quartz and feldspar apparently derived from a nearby plutonic terrain. In detail, poor sorting, presence of graded bedding, and an abundance of clay suggest these are turbidite horizons locally derived from a mixed volcanic/plutonic terrain, possibly with some direct contribution from contemporary volcanic ash falls. A progressive increase in plutonic versus volcanic components with time is, however, more consistent with an erosional origin for most of this material. Unusual euhedral dark biotite is abundant in several of the lower clastic horizons; it is most easily interpreted as microphenocrysts weathered in situ out of alkalic volcanic ash. Biotite separated from Sample 516F-76-4,107-115 cm, has been dated by the K-Ar method at about 46 Ma. Alkaline volcanoes active on the Rio Grande Rise in the middle Eocene would be the most probable source of this ash and would be consistent with other evidence for potassic, alkaline volcanism along the Rio Grande Rise and at the Tristan da Cunha hot spot.
description: Ages were calculated from the following decay and abundance constants: lambda-e = 0.581 x 10**-10 yr.**-1; lambda-beta = 4.962 x 10**-10 yr . - 1 ; 40K/K= 1.167 x 10**-4 mol/mol.
description: Supplement to: Bryan, Wilfred B; Duncan, Robert A (1983): Age and provenance of clastic horizons from Hole 516F. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 475-477
DOI: 10.1594/pangaea.922249
title: Radiocarbon ages of sediment core MKD1