cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.841542
title: (Table 1) AMS 14C dates from sediment cores RC12-10 and GYRE97-6PV-20

description: Proxy records from two piston cores in the Gulf of Mexico (GOM) provide a detailed (50-100 year resolution) record of climate variability over the last 14,000 years. Long-term (millennial-scale) trends and changes are related to the transition from glacial to interglacial conditions and movement of the average position of the Intertropical Convergence Zone (ITCZ) related to orbital forcing. The d18O of the surface-dwelling planktic foraminifer Globigerinoides ruber show negative excursions between 14 and 10.2 ka (radiocarbon years) that reflect influx of meltwater into the western GOM during melting of the Laurentide Ice Sheet. The relative abundance of the planktic foraminifer Globigerinoides sacculifer is related to transport of Caribbean water into the GOM. Maximum transport of Caribbean surface waters and moisture into the GOM associated with a northward migration of the average position of the ITCZ occurs between about 6.5 and 4.5 ka. In addition, abundance variations of G. sacculifer show century-scale variability throughout most of the Holocene. The GOM record is consistent with records from other areas, suggesting that century-scale variability is a pervasive feature of Holocene climate. The frequency of several cycles in the climate records is similar to cycles identified in proxy records of solar variability, indicating that at least some of the century-scale climate variability during the Holocene is due to external (solar) forcing.
description: Measuerd on mixed planktonic foraminifera.
description: Supplement to: Poore, Richard Z; Dowsett, Harry J; Verardo, Stacey; Quinn, Terrence Michael (2003): Millennial- to century-scale variability in Gulf of Mexico Holocene climate records. Paleoceanography, 18(2), 1048
DOI: 10.1594/pangaea.399134
title: Age determinations on sediment core IOW211630-9
DOI: 10.1594/pangaea.399135
title: Age determinations on sediment core IOW211660-6
DOI: 10.1594/pangaea.438883
title: Age determination of sediment profile PG1187
DOI: 10.1594/pangaea.399072
title: Age determinations on sediment core MK-325
DOI: 10.1594/pangaea.712608
title: Table 1b. Radiocarbon ages on samples from Vilkitsky Bay

description: marine limit 10 +/- 1 m a.s.l., Elevation gives the meters above high tide (m aht)
DOI: 10.1594/pangaea.786454
title: (Table 1) Radiocarbon dates and calibrated ages of peat profiles from Selwyn and Ennadai lake, Canada
DOI: 10.1594/pangaea.716577
title: Tab. 14: 14C Radiocarbon dating of profile 7039-102 (Vorratsgrube - Hochterrasse bei Egglfing)
DOI: 10.1594/pangaea.760951
title: Table 2 Radiocarbon ages determined on bulk TOC from core Lz1084, Lake Ohrid

description: The surface sediment age most likely represents the recent hard water effect.
DOI: 10.1594/pangaea.716581
title: Tab. 9: 14C Radiocarbon dating of profile 7140-240 (Aue der Kleinen Laaber) (I)
DOI: 10.1594/pangaea.399068
title: Age determinations on sediment core L-348
DOI: 10.1594/pangaea.804560
title: Table 1: AMS 14C age dating of sediment core BP99-04
DOI: 10.1594/pangaea.716582
title: Tab. 9: 14C Radiocarbon dating of profile 7140-242 (Aue der Kleinen Laaber) (I)
DOI: 10.1594/pangaea.821375
title: (Table 1) Age determination of sediments from the Campbell Plateau

description: Campbell Plateau occupies a key position in the southwest Pacific sector of the Southern Ocean. The plateau confines and steers the Antarctic Circumpolar Current (ACC) along its flanks, isolating the Subantarctic plateau from cold polar waters. Oxygen and carbon isotope records from Campbell Plateau cores provide new records of water mass stratification for the past 130 kyr. During glacial climes, strengthening of the Subantarctic Front (SAF) caused waters over the plateau flanks to be deeply mixed and ~3°C cooler. Waters of the plateau interior remained stratified and isolated from the cold southern waters. In the west, waters cooled markedly (~4°C) owing to reduced entrainment of Tasman Sea water. Marked cooling also occurred north of Campbell Plateau under increased entrainment of polar water by a branch of the SAF. The ACC remained along the flanks of Campbell Plateau during the last interglacial, when interior waters were stratified and warmer by ~1°C than now.
description: Supplement to: Neil, Helen L; Carter, Lionel; Morris, Michele (2004): Thermal isolation of Campbell Plateau, New Zealand, by the Antarctic Circumpolar Current over the past 130 kyr. Paleoceanography, 19(4), PA4008
DOI: 10.1594/pangaea.866375
title: Age determination of sediment core W8709A-13

description: Northeast Pacific benthic foraminiferal d18O and d13 reveal repeated millennial-scale events of strong deep-sea ventilation (associated with nutrient depletion and/or high gas exchange) during stadial (cool, high ice volume) episodes from 10 to 60 ka, opposite the pattern in the deep North Atlantic. Two climate mechanisms may explain this pattern. North Pacific surface waters, chilled by atmospheric transmission from a cold North Atlantic and made saltier by reduced freshwater vapor transports, could have ventilated the deep Pacific from above. Alternatively, faster turnover of Pacific bottom and mid-depth waters, driven by Southern Ocean winds, may have compensated for suppressed North Atlantic Deep Water production during stadial intervals. During the Younger Dryas event (~11.6-13.0 cal ka), ventilation of the deep NE Pacific (~2700 m) lagged that in the Santa Barbara Basin (~450 m) by &gt;500 years, suggesting that the NE Pacific was first ventilated at intermediate depth from above and then at greater depth from below. This apparent lag may reflect the adjustment time of global thermohaline circulation.
description: Supplement to: Lund, David C; Mix, Alan C (1998): Millennial-scale deep water oscillations: Reflections of the North Atlantic in the deep Pacific from 10 to 60 ka. Paleoceanography, 13(1), 10-19
DOI: 10.1594/pangaea.794526
title: (Table 7) Phosphorus components, CaCO3 and biogenic opal in sediments of ODP Hole 167-1021B
DOI: 10.1594/pangaea.819253
title: (Table 12) Age determination of Arctic Ocean sediment samples
DOI: 10.1594/pangaea.712844
title: (Table 1) Age determination on sediment core Glen_Torridon
DOI: 10.1594/pangaea.722590
title: (Table DR2) Radiocarbon data for ODP Hole 167-1019D
DOI: 10.1594/pangaea.836942
title: Age determination and model for Site 202-1233

description: Depth is given in meters composite depth.This updated age model for ODP Site 1233 is based on the age model of Kaiser et al. 2005 (doi:10.1029/2005PA001146), derived from correlation with core GeoB 3313-1, mixed planktonic 14C ages from Lamy et al. 2004 (DOI: 10.1126/science.1097863) and correlation with Byrd. The update applies the MARINE13 calibration and regional reservoir corrections based on Siani et al. 2013 (DOI: 10.1038/ncomms3758).
DOI: 10.1594/pangaea.736630
title: (Supplementary Table 1) 230Th/U results for stalagmite Cuba Grande (CG) from Pinar del Rio

description: We present 22 U-series ages for a stalagmite from north-western Cuba based on multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS) and thermal ionisation mass spectrometry (TIMS). Our results reveal that the stalagmite continuously grew within the last ~1400a. Low uranium content of the sample and thus, extremely low 230Th concentrations limit the precision and accuracy of 230Th/U-dating by TIMS. Samples measured by MC-ICPMS show a high variability of 232Th content along the growth axis with some sections significantly affected by initial 230Th from a detrital phase. An a-priori bulk earth ratio for (238U/232Th) cannot be used to accurately account for this initial 230Th. Using an age model based on the 230Th/U ages determined on samples with low or negligible 232Th concentration, we find that the (238U/232Th) activity ratio of the detrital phase is an order of magnitude larger than the bulk earth value, indicating the importance of an accurately determined correction factor.
description: Data acquired through subproject CaribClim (Control of seasonality and interannual to centennial climate in the Caribbean during the Holocene - Combining coral records, stalagmite records and climate models)
description: Supplement to: Fensterer, Claudia; Scholz, Denis; Hoffmann, Dirk L; Mangini, Augusto; Pajon, Jesus M (2010): 230Th/U-dating of a late Holocene low uranium speleothem from Cuba. IOP Conference Series: Earth and Environmental Science, 9(1), 012015
DOI: 10.1594/pangaea.820830
title: Age determination of sediment core PS75/104-1
DOI: 10.1594/pangaea.842428
title: (Tab. 1) Age determination of sediment core Rud, Rudower See
DOI: 10.1594/pangaea.759565
title: Tab. 2: U-Pb ion-microprobe ages from Taymyr peninsula

description: We present the initial results of a U-Th-Pb zircon ion-microprobe investigation on samples from the Central Belt of Taimyr, in order to constrain its tectono-magmatic evolution. The zircon samples are from a deformed twomica granite (Faddey Massif), deformed metamorphosed gabbroic dike entrained as pods and lenses within metamorphosed tholeiitic basalts of the Kunar-Mod volcanic suite (Klyaz'ma River region), a metamorphosed rhyolite of the same volcanic suite overlying the basic metavolcanic rocks, as well as an undeformed dolerite dike which intrudes the metamorphosed Kunar-Mod basic volcanic rocks.Preliminary results on zircons from the two-mica granite suggest a crystallization age of ~630 Ma for this rock, with inheritance from assimilated crust 840 Ma to 1.1 Ga in age. In the Klyaz'ma River region, zircons from the meta-rhyolite yield a concordant age of -630 Ma. Zircons from the entrained metagabbroic dikes have so far yielded an age of -615 Ma (1 grain), as well as Archean ages (5 grains, concordant at 2.6-2.8 Ga). It seems likely that the Archean grains represent assimilation of older crustal material. Zircons from the post-tectonic dolerite dike have a bimodal age distribution. A well-defined younger age of 281 ±9 Ma is interpreted to represent the crystallization age of the dike, while older, concordant ages of 2.6-2.9 Ga likely represent assimilation of Archean crust (Siberian craton at depth).Several important conclusions can be drawn from the data. (1) The mafic and felsic lithologies of the Kunar-Mod volcanic suite are genetically related and should be the same age. Ages of-630 Ma (meta-rhyolite) and -615 Ma (metagabbroic dikes representing the latest stage of mafic magmatism associated the Kunar-Mod suite) suggest that these lithologies may be the same age, but more data are required to confirm this hypothesis. (2) The 630 Ma two-mica granite is similar in age to the time of high-grade metamorphism, suggesting that syntectonic granite emplacement accompanied obduction of the accretionary Central Belt to the Siberian craton. (3) An Early Permian age is well defined for the undeformed dolerite dike. Dolerite dikes occur across the whole of Taimyr, but are deformed to the south. If related, this single magmatic event pre-dates Permo-Triassic Siberian trap magmatism. Furthermore, it suggests that deformation was localized to southeastern Taimyr.
description: Position of sites digitized from map.
description: Supplement to: Pease, Victria; Vernikovsky, Valerij (2000): The tectono-magmatic evolution of the Taimyr Peninsula: further constraints from new ion-microprobe data. Polarforschung, 68, 171-178
DOI: 10.1594/pangaea.873760
title: (Table S2) Radiocarbon age control sediment cores from Pine Island Bay

description: Uncorrected and calibrated AMS 14C dates on calcareous microfossils together with sample depth and dated material. A marine reservoir effect (= MRE) correction of 1300±100 years was applied (Berkman & Forman, 1996). The corrected 14C-dates were calibrated with the CALIB Radiocarbon Calibration Program version 7.0.2 (http://calib.qub.ac.uk/calib/) using the MARINE09 calibration dataset. We show the entire 1 sigma range for each calibrated age (Min, Max), but quote the mean age throughout the text. The upper three 14C-dates plot all between 8.1 to 8.4 cal. ka BP within their Min-Max 1 sigma ranges. The lowermost age of 8.6 cal. ka BP is the oldest and most reliable (minimum) age for the onset of full marine conditions at this core position. The AMS 14C dating was carried out at BETA Analytic Inc., Miami, Florida, U.S.A. Dates from core PS69/288-3 GC and PS75/214-1 GC have been previously published in Smith et al. (2014) and Hillenbrand et al. (2013), respectively. For this study we used and recalibrated the oldest date from core PS75/214-1 GC (no composite depth), which provides the minimum age for grounded ice retreat from inner Pine Island Bay following the LGM (Smith et al., 2014; Hillenbrand et al., 2013)
DOI: 10.1594/pangaea.700143
title: (Table 1) Age determination of sediment core SO136-003
DOI: 10.1594/pangaea.738283
title: (Table 1) Age determination of sediment core GeoB3129-1

description: Age determination after Arz et al., 1999
DOI: 10.1594/pangaea.809106
title: (Table 2) 40Ar-39Ar ages of samples from core AND-2A
DOI: 10.1594/pangaea.926898
title: Radiocarbon ages of Mediterranean Sea sediment cores

description: Radiocarbon dating was undertaken at the UMS-ARTEMIS Facility (CNRS-CEA Saclay, France) using a Pelletron 3MV AMS on 8 mg of well-preserved calcareous test samples of planktonic foraminifera (monospecific samples of Globigerinoides ruber, Globigerina bulloides and Globigerina inflata and a mix of planktonic foraminifera for one sample) in the size fraction &gt;150 µm (Table 1). The age models for the cores were derived from the calibrated planktonic ages by applying a variable sea-surface reservoir ¹⁴C correction (Siani et al., 2000, 2001) and using INTCAL20 (Reimer et al., 2020) calibration curve in the Oxcal 4.4 software (Bronk Ramsey, 2009).
DOI: 10.1594/pangaea.710995
title: (Table 1) Th and U isotope ratios of sediments from ODP Site 166-1008

description: U and Th blanks are &lt;1‰ of the measured sample and are corrected for. Raw ages and delta234U values are adjusted to account for initial 230Th to give the corrected numbers in the final two columns. Errors are 2 sigma and are propagated through the age calculation. All calculations have used the half-lives measured in Cheng et al.(2000, doi:10.1016/S0009-2541(99)00157-6)
DOI: 10.1594/pangaea.726255
title: (Table 1) Age determination of sediment core NA87-22
DOI: 10.1594/pangaea.712923
title: Apatite fission track analytical data for samples from ODP Leg 152

description: We test a new approach to understanding the tectonic evolution of passive margins by using fission-track analysis on detrital apatites from sediments deposited offshore East Greenland. These apatites have not undergone postdepositional track annealing and therefore reflect provenance. The apatites preserve a component of the source rocks' thermal history that otherwise may not be retained within the present-day outcrop. Fission-track derived denudational histories from samples at Ocean Drilling Program drill sites offshore East Greenland at lat 63°N are compared with data from the onshore Singertat Complex. Previous apatite fission-track studies and geomorphic mapping of the East Greenland coast have shown that locally up to 6 km of denudation may have occurred, implying significant tectonic or magmatic activity starting as much as 30 m.y. after breakup at 56 Ma. In contrast, apatite fission-track data presented here record &lt;2 km of Cenozoic denudation in southeast Greenland, probably driven by magmatic underplating at the time of breakup. Large-magnitude, postrift denudation of East Greenland is restricted to the area around Kangerdlugssuaq (68°N). The timing (&lt;40-50 Ma) and magnitude are in accord with revised plume track models suggesting that the Iceland plume crossed the margin here during the late Eocene.
description: Supplement to: Clift, Peter D; Carter, Andrew; Hurford, Anthony J (1996): Constraints on the evolution of the East Greenland Margin: Evidence from detrital apatite in offshore sediments. Geology, 24(11), 1013-1016
DOI: 10.1594/pangaea.734091
title: (Table 2) Age determination of peat profil FAU_2a
DOI: 10.1594/pangaea.818026
title: (Table3a) Overview of the AMS 14C dates determined on 22 specimens of Lophelia pertusa, Madreporaoculata and dendrophylliids

description: * one specimen of M. oculata was dated twice. The 14C ages were corrected for 13C and a mean ocean reservoir age of 400 years, and were converted into calendar years using the CALPAL2004 software.
DOI: 10.1594/pangaea.717634
title: Age determination of sediment core Rappershausen1
DOI: 10.1594/pangaea.712062
title: (Table 1) Accelerator mass spectrometry 14C dates from ODP Hole 169-1037B

description: New results from Ocean Drilling Program Site 1037 and U.S. Geological Survey high-resolution seismic-reflection profiles confirm the great thickness, fast deposition rate, distant source, and convolute path of turbidites that fill the Escanaba Trough, the rift valley of the southernmost segment of the Gorda Ridge. Accelerator mass spectrometry 14C measurements provide the first direct dating of the Escanaba Trough turbidites, demonstrating an average deposition rate faster than 10 m/k.y. between 32 and 11 ka and as fast as 15 m/k.y. during the oxygen isotope stage 2 lowstand. In the upper 60 m of sediment, the petrology of turbidite sand beds, which are as much as 12 m thick, show that the dominant source for the turbidites is from the Columbia River, which is more than 800 km to the north, rather than from the much closer rivers of northern California. New high-resolution seismic-reflection profiles show that, except for areas of very recent volcanism, the entire Escanaba Trough below 3200 m water depth is floored by the turbidite sequence that was cored in the upper 60 m at Site 1037B. The ages of the upper 120 m of turbidites correspond with the ages of channeled scabland deposits associated with latest Quaternary jokulhlaups from glacial Lake Missoula. The age and source characteristics suggest that these megaturbidite beds in Escanaba Trough are most likely deposits formed by hyperpycnally generated turbidity currents as the largest of the Lake Missoula floods entered the sea.
description: Supplement to: Brunner, Charlotte A; Normark, William R; Zuffa, Gian G; Serra, Francesca (1999): Deep-sea sedimentary record of the late Wisconsin cataclysmic floods from the Columbia River. Geology, 27(5), 463-466
DOI: 10.1594/pangaea.763723
title: (Table 2) Radiocarbon concentrations and ages of TOC, alkenones and planktic foraminifera of sediment core NEAP-18B
DOI: 10.1594/pangaea.707127
title: 14C age determination on sediment profile bh6045
DOI: 10.1594/pangaea.755445
title: (Table 1g) Radiocarbon datings of Upper Quaternary bottom sediments from the Mediterranean Sea at Station VITYAZ7928
DOI: 10.1594/pangaea.755602
title: (Table 2) Radiocarbon datings of bottom sediments from the Gulf of Riga, Baltic Sea

description: Radiocarbon datings have been made on bottom sediments collected in the Gulf of Riga. These age determinations have been made on organic matter, much of which supplied with stream runoff and having some initial ages ranging from 2000 to 6000 yrs (in different rivers). This greatly complicates interpretation of obtained data. Average sedimentation rates, as determined by the equation of linear regression for four sediment cores, vary from 0.2 to 2.0 mm/yr.
description: Supplement to: Kuptsov, Vladimir M; Lisitzin, Alexander P; Zel'dina, Bella B (1982): Sedimentation rates in the Gulf of Riga, from radiocarbon data. Oceanology, 22(4), 455-458
DOI: 10.1594/pangaea.761131
title: 40Ar-39Ar plateau and isochron ages from the Ninetyeast and Broken Ridges (Table 1)

description: Concordant plateau and isochron ages are obtained from 40Ar-39Ar incremental heating experiments on volcanic rocks recovered by drilling at three Leg 121 sites along the Ninetyeast Ridge and two dredge locations on the southern scarp of the Broken Ridge, eastern Indian Ocean. The new data confirm a northerly increase in the age of volcanism along the Ninetyeast Ridge, from 38 to 82 Ma; this lineament links current hotspot volcanism near the Kerguelen islands with the Rajmahal flood basalt eruptions at M0 time (117 ± 1 Ma). The Broken Ridge was formed over the same hotspot at 88-89 Ma, but later experienced rift-related volcanism in Paleocene time (63 Ma). The geometry and distribution of ages along these prominent volcanic ridges and the Mascarene-Chagos-Laccadive-Maldive ridge system in the western Indian Ocean are most compatible with plate motions over fixed hotspots near Kerguelen and Reunion islands, respectively.
description: Supplement to: Duncan, Robert A (1991): Age distribution of volcanism along aseismic ridges in the eastern Indian Ocean. In: Weissel, J; Peirce, J; Taylor, E; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 121, 507-517
DOI: 10.1594/pangaea.820649
title: The inorganic carbon system measured and calculated on Cibicidoides cf. wuellerstorfi of sediment core PS75/101-2

description: Reconstruction equation: B/Ca = 2.27(D[CO32-]) + 152.5 (R2= 0.76)
DOI: 10.1594/pangaea.358842
title: (Table 2) Age determinations on sediment core PS2166-2
DOI: 10.1594/pangaea.206171
title: Carbon isotope data in sediment core BOFS8C

description: Scottish Universities Environmental Research Centre. Authorship was originally taken from the JGOFS CDs (Lowry & BODC) and was changed by request of the BODC.
DOI: 10.1594/pangaea.763722
title: (Table 2) Radiocarbon concentrations and ages of TOC, alkenones and planktic foraminifera of sediment core NEAP-11B
DOI: 10.1594/pangaea.388990
title: Facies log and age determinations of profile SEV2b from Taymyr Peninsula
DOI: 10.1594/pangaea.388991
title: Facies log and age determinations of profile SEV2c from Taymyr Peninsula
DOI: 10.1594/pangaea.389057
title: (Table 1) Age determinations on sediment core DF79.012-GB
DOI: 10.1594/pangaea.357051
title: Paleoecological investigation of Hessische Senke at site MS-TG1700
DOI: 10.1594/pangaea.788595
title: (Table S3) B/Ca ratios Cibicidoides wuellerstorfi from Holocene sediments

description: Size fraction of benthic foraminifera = 150-250 µm.