cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.52692
title: Age determinations on ODP Hole 117-723A in the Arabian Sea

description: Planktonic foraminiferal abundances, fluxes, test sizes, and coiling properties are influenced in various ways by the southwest monsoon winds and associated upwelling in the western Arabian Sea. To determine the short-term changes in the southwest monsoon, we have carried out a high-resolution time-series analysis of three upwelling indices (total flux of planktonic foraminiferal tests and flux and relative abundance of the planktonic foraminiferal species Globigerina bulloides) from Ocean Drilling Program (ODP) Site 723A (Oman Margin, western Arabian Sea) spanning the last 19 kyr. In addition, we have determined the relationships between upwelling intensity and the relative abundance, fluxes, and shell concentrations of various planktonic foraminiferal species. Upwelling indices suggest that from 19 to 16 ka (22 to 18.2 cal kyr B.P.) the SW monsoon was relatively strong compared to the period 15.8 to 12.5 ka (17.8 to 13.8 cal kyr B.P.). The intensification of the SW monsoon took place at 12 ka (13.1 cal kyr B.P.) and reached a peak between 10 and 5 ka (10.6 and 4.8 cal kyr B.P.). The high-resolution data further demonstrate that the SW monsoon has started weakening from 5 ka (4.8 cal kyr B.P.) and the weakest phase was in place at 3.5 ka (3 cal kyr B.P.), which coincides with evidence of an arid climate in western Tibet. Fluxes and shell concentrations of many of the planktonic foraminiferal species increased between 12 and 5 ka in response to the intensification of the SW monsoon winds after the last glacial period. Globigerina bulloides shows a fivefold to tenfold increase in flux during this period of intense upwelling. The other species whose fluxes are influenced by this upwelling change are (in order from strongest to weakest response) Globigerinita glutinata, Globigerinoides ruber, Neogloboquadrina dutertrei, Globigerinella aequilateralis, Globigerina falconensis, and Globigerinoides sacculifer. The relative abundances of G. bulloides and G. ruber increased during intense upwelling, whereas the relative abundances of G. glutinata, N. dutertrei, G. falconensis, and G. sacculifer did not increase during this period, which might be due to differences in the productivity of various species in relation to upwelling change. Therefore the fluxes and shell concentrations provide better and more reliable information about the changes in the monsoon system in the Arabian Sea than relative abundance data.
description: Supplement to: Naidu, Pothuri Divakar; Malmgren, Bjorn (1996): A high-resolution record of late Quaternary upwelling along the Oman Margin, Arabian Sea based on planktonic foraminifera. Paleoceanography, 11(1), 129-140
DOI: 10.1594/pangaea.860084
title: Age determination of Store Mosse peat bog
DOI: 10.1594/pangaea.888890
title: Age determination of sediment core NIKOLSK, Nikokolsko-Lutinskoye bog, Russia

description: This dataset was archived on 2018-04-23 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.615799
title: Age determination of Ice Complex sediments near the sea level of the outcrop Mamontovy Khayata and of the northern part of the Muostakh Island (Table 5-4)
DOI: 10.1594/pangaea.849322
title: Age determination on sediment core MSM05/5_723-2
DOI: 10.1594/pangaea.726703
title: Radiocarbon dating of a sediment profile from Lake Nikolay
DOI: 10.1594/pangaea.857864
title: (Table 2) Age determination of Irminger Basin sediment cores

description: High-resolution records of coarse lithic content and oxygen isotope have been obtained in a piston core from the Irminger Basin. The last glacial period is characterized by numerous periods of increased iceberg discharges originating partly from Iceland and corresponding to millennial-scale instabilities of the coastal ice sheets and ice shelves in the Nordic area. A comparison with midlatitude sediment cores shows that ice-rafted material corresponding to the Heinrich events was deposited synchronously from 40° to 60°N. There are thus two oscillating systems: every 5-10 kyr massive iceberg armadas are released from large continental ice caps, whereas more frequent instabilities of the coastal ice sheets in the high latitude regions occur every 1.2-3.8 kyr. At the time of the Heinrich events the synchroneity of the response from all the northern hemisphere ice sheets attests the existence of strong interactions between the two systems.
description: Data for core SU90-08 is from Grousset el al. (1993), Cortijo et al. (1997), and Vidal et al. (1997), and data from ODP site 609 and core V23-81 are from Bond and Lotti (1995).
description: Supplement to: Elliot, Mary; Labeyrie, Laurent D; Bond, Gerard C; Cortijo, Elsa; Turon, Jean-Louis; Tisnerat, Nadine; Duplessy, Jean-Claude (1998): Millennial-scale iceberg discharges in the Irminger Basin during the Last Glacial Period: Relationship with the Heinrich events and environmental settings. Paleoceanography, 13(5), 433-446
DOI: 10.1594/pangaea.744539
title: Geochemistry on sediment profile Co1011
DOI: 10.1594/pangaea.857890
title: (Table 1) Age determination of sediment core BC5, Golf of Lion

description: Hitherto unknown abundance peaks of left coiling (l.c.) Neogloboquadrina pachyderma from a Gulf of Lions piston core indicate that abrupt cold spells associated with Atlantic Heinrich events affected the Mediterranean. N. pachyderma (l.c.) is typical of (sub) polar waters in the open ocean. The southern edge of its glacial North Atlantic bioprovince reached south Portugal. Only trace abundances of N. pachyderma (l.c.) are known from Quaternary Mediterranean sediments, suggesting that no significant "invasions" occured via the Strait of Gibraltar. The Gulf of Lions abundance peaks therefore seem to reflect area-specific thriving of a normally rare but indigenous taxon in the western Mediterranean through local favorable habitat development. The general planktonic foraminiferal record suggests that the basic hydrographic regime in the Gulf of Lions, with wintertime deep convective overturn, was relatively stable over the past 60 kyr. Under these conditions, high abundances of N. pachyderma (l.c.) would essentially imply temperature reductions of the order of 5°-8° relative to the present.
description: Supplement to: Rohling, Eelco J; Hayes, A; de Rijk, Sacha; Kroon, Dick; Zachariasse, Willem-Jan; Eisma, D (1998): Abrupt cold spells in the northwest Mediterranean. Paleoceanography, 13(4), 316-322
DOI: 10.1594/pangaea.726696
title: Radiocarbon dating on a sediment profile from Lake Teletskoye
DOI: 10.1594/pangaea.893763
title: Age determination of sediment core KILOALA, Alanen Laanijärvi, Sweden

description: This dataset was archived on 2018-09-10 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893836
title: Age determination of sediment core NAVALACA, Arroyo de Navalacarreta, Spain

description: This dataset was archived on 2018-09-10 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893772
title: Age determination of sediment core AUSTERNG, Austerngrund, North Sea

description: This dataset was archived on 2018-09-10 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893809
title: Age determination of sediment core WESTRHA2, Westrhauderfehn, Germany

description: This dataset was archived on 2018-09-10 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893769
title: Age determination of sediment core GEDI97, Ein Gedi, Israel

description: This dataset was archived on 2018-09-10 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.780385
title: Age determination of sediment core PG1975-1 (09-Tik-05)
DOI: 10.1594/pangaea.809987
title: (Table 2) Radiocarbon ages of peat and detritus samples from Herschel Island and Komakuk Beach
DOI: 10.1594/pangaea.780526
title: Age determination of sediment core PG1972-1 (09-Tik-03)
DOI: 10.1594/pangaea.848897
title: Radiocarbon age determination on composite core PG2023
DOI: 10.1594/pangaea.876022
title: Age determination of sediment core KK12-1, Lake Karakul, Tajikista
DOI: 10.1594/pangaea.744536
title: Geochemistry on sediment profile Co1014
DOI: 10.1594/pangaea.788071
title: (Table 4) Radionuclides, dose rates, and resulting OSL ages of soil profiles ADO-39 and ADO-42
DOI: 10.1594/pangaea.893946
title: Age determination of sediment core FUHRENKA, Fuhrenkamp, Germany

description: This dataset was archived on 2018-09-13 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894123
title: Age determination of sediment core OTTTIA, Tiåvatnet, Norway

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893986
title: Age determination of sediment core KILOLIT, Litlvatnet, Norway

description: This dataset was archived on 2018-09-13 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894131
title: Age determination of sediment core SETESD, Dalane, Norway

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893990
title: Age determination of sediment core KILOMYR, Myrvatnet, Norway

description: This dataset was archived on 2018-09-13 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893954
title: Age determination of sediment core IMMENMOO, Immenmoor, Germany

description: This dataset was archived on 2018-09-13 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894135
title: Age determination of sediment core SETESF, Flotatjønn, Norway

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893957
title: Age determination of sediment core JAGEN20, Jagen 20, Germany

description: This dataset was archived on 2018-09-13 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893842
title: Age determination of sediment core TUB, Tubilla del Lago, Spain

description: This dataset was archived on 2018-09-10 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894143
title: Age determination of sediment core SETESGR, Grostjørna, Norway

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893949
title: Age determination of sediment core GRAMOU, Lake Gramousti, Greece

description: This dataset was archived on 2018-09-13 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894211
title: Age determination of sediment core TRIFOGLI, Lago Trifoglietti, Italy

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894202
title: Age determination of sediment core SILBERSE, Silbersee, Germany

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893943
title: Age determination of sediment core FLOFISCH, Flögeln Fischer, Germany

description: This dataset was archived on 2018-09-13 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894005
title: Age determination of sediment core KISMOHOS, Kis-Mohos Tó, Hungary

description: This dataset was archived on 2018-09-13 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.893832
title: Age determination of sediment core CARCAVAS, Arroyo de las Cárcavas, Spain

description: This dataset was archived on 2018-09-10 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894127
title: Age determination of sediment core REZINA, Rezina marsh, Greece

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894149
title: Age determination of sediment core SETESH, Holebudalen, Norway

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894184
title: Age determination of sediment core SETESLT, Lisletønn, Norway

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.779929
title: Table 3. Radiocarbon ages determined for the core JM06-WP-04-MCB

description: The software Calib 5.0.2 (Stuiver et al., 2000) was used for calibration with a reservoir correction of 400 years and normalization for a d13C of -25 per mil PDB (Stuiver et al., 2000).
DOI: 10.1594/pangaea.894205
title: Age determination of sediment core STEERTMO, Steertmoor Fickmühlen, Germany

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.894208
title: Age determination of sediment core STEINKIS, Steinkiste, Germany

description: This dataset was archived on 2018-09-14 from the EPD database. (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.826970
title: (Table S1) Age determination of sediment core JM06-WP-16-MCB
DOI: 10.1594/pangaea.835175
title: (Table 1) Age determination of Chukchi Sea sediments

description: Dinocysts from cores collected in the Chukchi Sea from the shelf edge to the lower slope were used to reconstruct changes in sea surface conditions and sea ice cover using modern analogue techniques. Holocene sequences have been recovered in a down-slope core (B15: 2135 m, 75°44'N, sedimentation rate of ~1 cm/kyr) and in a shelf core (P1: 201 m, 73°41'N, sedimentation rate of ~22 cm/kyr). The shelf record spanning about 8000 years suggests high-frequency centennial oscillations of sea surface conditions and a significant reduction of the sea ice at circa 6000 and 2500 calendar (cal) years B.P. The condensed offshore record (B15) reveals an early postglacial optimum with minimum sea ice cover prior to 12,000 cal years B.P., which corresponds to a terrestrial climate optimum in Bering Sea area. Dinocyst data indicate extensive sea ice cover (&gt;10 months/yr) from 12,000 to 6000 cal years B.P. followed by a general trend of decreasing sea ice and increasing sea surface salinity conditions, superimposed on large-amplitude millennial-scale oscillations. In contrast, d18O data in mesopelagic foraminifers (Neogloboquadrina pachyderma) and benthic foraminifers (Cibicides wuellerstorfi) reveal maximum subsurface temperature and thus maximum inflow of the North Atlantic water around 8000 cal years B.P., followed by a trend toward cooling of the subsurface to bottom water masses. Sea-surface to subsurface conditions estimated from dinocysts and d18O data in foraminifers thus suggest a decoupling between the surface water layer and the intermediate North Atlantic water mass with the existence of a sharp halocline and a reverse thermocline, especially before 6000 years B.P. The overall data and sea ice reconstructions from core B15 are consistent with strong sea ice convergence in the western Arctic during the early Holocene as suggested on the basis of climate model experiments including sea ice dynamics, matching a higher inflow rate of North Atlantic Water.
description: Supplement to: de Vernal, Anne; Hillaire-Marcel, Claude; Darby, Dennis A (2005): Variability of sea ice cover in the Chukchi Sea (western Arctic Ocean) during the Holocene. Paleoceanography, 20(4), PA4018
DOI: 10.1594/pangaea.882496
title: (Table 2) Radiocarbon dates and modelled ages for sediment core MSM09/2_455-13 (GeoTü SL 170)

description: All 14C radiocarbon dates with the ETH lab code were measured for this study as gas samples at the Laboratory for Ion Beam Physics, ETHZ; other codes are for 14C dates measured using the traditional AMS 14C method. All 14C were calibrated using the Marine13 dataset (Reimer, 2013) and a DeltaR of 140 ± 35 years was applied in the age modelling software BACON. Maximum and minimum ages represent the 95% (2Sigma uncertainty) in the age model.** 14C dates that were considered outliers and thus removed from the final age model presented here (see supplementary information for details).
DOI: 10.1594/pangaea.882497
title: (Table 1) Radiocarbon dates and modelled ages for sediment core MSM09/2_467-3 (GeoTü SL 174)

description: All 14C radiocarbon dates with the ETH lab code were measured as gas samples for this study at the Laboratory for Ion Beam Physics, ETHZ; other codes are for 14C dates measured using the traditional AMS 14C method. All 14C ages were calibrated using the Marine13 dataset (Reimer, 2013) and a DeltaR of 140 ± 35 years was applied in the age modelling software BACON. Maximum and minimum ages represent the 95% (2Sigma uncertainty) in the age model. No dates were considered outliers by the BACON age model. *The ages obtained from sample interval 384 - 385 cm were not included in the deglacial age model (see text for details).
DOI: 10.1594/pangaea.829499
title: (Table S1) Age determination of sediment cores from the Labrador Sea

description: High resolution flow speed reconstructions of two core sites located on Gardar Drift in the northeast Atlantic Basin and Orphan Knoll in the northwest Atlantic Basin reveal a long-term decrease in flow speed of Northeast Atlantic Deep Water (NEADW) after 6,500 years. Benthic foraminiferal oxygen isotopes of sites currently bathed in NEADW show a 0.2per mil depletion after 6,500 years, shortly after the start of the development of a carbon isotope gradient between NEADW and Norwegian Sea Deep Water. We consider these changes in near-bottom flow vigor and benthic foraminiferal isotope records to mark a significant reorganization of the Holocene deep ocean circulation, and attribute the changes to a weakening of NEADW flow during the mid to late Holocene that allowed the shoaling of Lower Deep Water and deeper eastward advection of Labrador Sea Water into the northeast Atlantic Basin.
description: MD99-2251 originally published in Ellsion et al., (2006). Conversion to calendar years before present (cal. yrs BP) with CALIB 501 (Stuiver et al., 1993) using marine04 as calibration data set. Mean ages are the arithmetic means of the age ranges given by the program.
description: Supplement to: Hoogakker, Babette A A; Chapman, Mark R; McCave, I Nicholas; Hillaire-Marcel, Claude; Ellison, Christopher RW; Hall, Ian R; Telford, Richard J (2011): Dynamics of North Atlantic Deep Water masses during the Holocene. Paleoceanography, 26(4), PA4214
DOI: 10.1594/pangaea.893248
title: Luminescence ages from sediment core XC05 from the Xingu River, Brazil
DOI: 10.1594/pangaea.845972
title: Age determination of sediment core SO202-07-6

description: The spatial and temporal variations of the thermohaline structure and dissolved oxygen and fluorescence along a tranesct form the mouth of the Isonzo river towards the centre of the trieste gulf (North Adriatic Sea) was followed during 12 cruises carried out from March 2011 to February 2013 in the framework of the FP7 MEDSEA Mediterranean Sea Acidification in a Changing Climate) project.
DOI: 10.1594/pangaea.863447
title: (Tab S3) Age determination of sediment core JM11-FI-19PC

description: Conventional and calibrated radiocarbon dates of core JM11-FI-19PC. Ages were first converted to calendar years before present (1950) using the CALIB Radiocarbon Calibration 7.0.2. Software and the Marine13 data set (including 400 year correction for surface reservoir ages), before 50 years were added to make them comparable to the ice core time scale GICC0538 in b2k (before 2000 years). # Marks the depth used for establishing the age model by Ezat et al. (2014, doi:10.1130/G35579.1) and in this study. All other AMS-14C dates are used to control the reliability of the age model only.
DOI: 10.1594/pangaea.860790
title: (Table 2) Age determination of sediment core Co1260

description: The calibration of radiocarbon ages into calendar ages is based on Calib 6.1.1 (Stuiver and Reimer, 1993) and INTCAL09 (Reimer et al., 2009) and on a 2 uncertainty.
DOI: 10.1594/pangaea.864064
title: (Table 1) Radiocarbon dates and calibrations of sediment core MD99-2236
DOI: 10.1594/pangaea.864801
title: AMS 14C dating results of sediment core YD0903
DOI: 10.1594/pangaea.863497
title: Table 1. Compilation and age span of conventional and reservoir-age-corected 14C dates of stomach oil samples from different breeding sites in Antarctica
DOI: 10.1594/pangaea.865391
title: (Table S02) Age model of sediment core MD09-3256
DOI: 10.1594/pangaea.865061
title: (Table 1, page 1218) Potassium and Argon data for dating the core of various manganese nodules from the Pacific Ocean

description: From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
DOI: 10.1594/pangaea.868499
title: (Table 1) Apatite fission track (AFT) data of the Eisenhower Range

description: The Transantarctic Mountains (TAM) were one of the first regions where apatite fission track (AFT) thermochronology was applied routinely to study exhumation processes and long term landscape evolution. Pioneering publications from the region introduced or refined interpretation concepts of thermochronological data such as the break in slope in vertical age profiles as qualitative marker for the onset of accelerated rock cooling. New AFT data were compiled from vertical profiles in the Eisenhower Range, northern TAM, and compared with published data. Samples originally examined by population technique were re-analysed via the external detector technique. AFT ages increase from 32±2 Ma at an elevation of 220 m to 175±14 Ma at 2380 m. Geological evidence and thermal history modeling of the AFT data require Jurassic to Late Eocene reheating of the samples and an onset of cooling at ~35 - 30 Ma. This requires the deposition of a ~3 to 3.5 km thick sedimentary sequence on the granitic basement subsequent to Jurassic Ferrar magmatism at ~180 Ma. The regression of paleotemperatures against sample altitudes infers a high Jurassic geothermal gradient of ~60°C/km related to rifting processes and Ferrar magmatism, and a moderate Cretaceous/Eocene geothermal gradient of ~30°C/km. Comparison of ages generated with population and external detector technique shows the importance of determining single-grain ages for each sample, even from granitic rocks of the same intrusion, and thus strongly supports previous cases made for the determination of annealing kinetics and grain-age evaluation. Age comparison additionally illustrates, that samples above a break in slope record larger deviations between population and external detector ages than samples below a break in slope. We demonstrate that position and shape of a break in slope result from various factors, such as the thermal history prior to final cooling, maximum paleotemperatures, cooling rate, and geothermal gradient. A break in slope does not straightly date the onset of final cooling and cannot substitute thermal history modeling. Therefore, earlier studies from the TAM and similar settings elsewhere need to be validated by combining thermal history modeling of thermochronological data and supplementary geological information.
description: Supplement to: Prenzel, Jannis; Lisker, Frank; Balestrieri, Maria Laura; Läufer, Andreas; Spiegel, Cornelia (2013): The Eisenhower Range, Transantarctic Mountains: Evaluation of qualitative interpretation concepts of thermochronological data. Chemical Geology, 352, 176-187