cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.918099
title: Beryllium 10 blanks processed with Dominica river sediment samples collected before and after Hurricane Maria
DOI: 10.1594/pangaea.716891
title: (Appendix Table 1) Hf isotope ratios of basalts from the North Atlantic Igneous Province

description: Positions (Latitude, Longitude) are estimated from map
DOI: 10.1594/pangaea.811444
title: (Table 1) Apparent ages from 40Ar/39Ar heating steps for DSDP Hole 72-516F basalts

description: Submarine basalts are difficult to date accurately by the potassium-argon method. Dalrymple and Moore (1968) and Dymond (1970), for example, showed that, when the conventional K-Ar method is used, pillow lavas may contain excess 40Ar. Use of the 40Ar/39Ar step-heating method has not overcome the problem, as had been hoped, and has produced some conflicting results. Ozima and Saito (1973) concluded that the excess 40Ar is retained only in high temperature sites, but Seidemann (1978) found that it could be released at all temperatures. Furthermore, addition of potassium, from seawater, to the rock after it has solidified can result in low ages (Seidemann, 1977), the opposite effect to that of excess 40Ar. Thus, apparent ages may be either greater or less than the age of extrusion. Because of this discouraging record, the present study was approached pragmatically, to investigate whether self-consistent results can be obtained by the 40Ar/39Ar step-heating method.
description: Blanks indicate not measured. 40Ar/30Ar, 39Ar/36Ar, and 37Ar/36Ar ratios corrected for mass discrimination and interfering isotopes.
description: Supplement to: Mussett, Alan E; Barker, Peter F (1983): 40Ar/39Ar age spectra of basalts, Deep Sea Drilling Project Site 516. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 467-470
DOI: 10.1594/pangaea.927745
title: Beryllium-10 exposure dating results for fluvial terraces

description: The 10Be data set includes the geographic position and elevation of the analyzed samples and the detailed analytical results including the blank correction, the correction for geological inheritance, and the final 10Be concentrations (atoms/gram) used to calculate the 10Be exposure ages.
description: Comments:1) 10Be concentrations were measured at the Cologne AMS, Germany (Dewald et al., 2013), and are normalised to the standards KN01-6-2 and KN01-5-3 with nominal 10Be/9Be ratios of 5.349 x 10-13 and 6.320 x 10-12, respectively. We also analysed two aliquots of the quartz reference material CoQtz-N with a 10Be concentration of 2.53±0.09 × 106 at/g (Binnie et al., 2019), for which we obtained 10Be concentrations of 2.40±0.09 and 2.61±0.09 × 106 at/g, respectively. The uncertainties of the 10Be concentrations (1σ) include the analytical uncertainty and the error of the blank correction. The analytical uncertainty includes the error based on the counting statistics, the scatter of repeated measurements of the same sample, and the uncertainty of the standard normalisation. Note that the 10Be concentrations reported for the terrace samples were corrected for an inherited 10Be component of 20±10 x 104 at/g, based on the 10Be concentration of the amalgamated sample 16C28 from an active stream channel.2) 10Be exposure ages were calculated with the CRONUS-Earth 10Be – 26Al online calculators (http://hess.ess.washington.edu/, version 3), using the time-dependent scaling model of Lifton et al. (2014), referred to as LSDn in the online calculator. All ages were calculated assuming a rock density of 2.65 g cm-3 and zero erosion.
DOI: 10.1594/pangaea.847009
title: (Table 5) SHRIMP U-Pb zircon data for sample ABA/21 from Gjelsvikfjella, Dronning Maud Land
DOI: 10.1594/pangaea.908149
title: Protactinium, thorium, uranium and opal of ODP Site 172-1059
DOI: 10.1594/pangaea.706921
title: (Table 1) Step-heating degassing data for argon-39 in volcanic rock from DSDP Hole 60-458
DOI: 10.1594/pangaea.706919
title: (Table 1) Step-heating degassing data for argon-39 in volcanic rock from DSDP Hole 58-443
DOI: 10.1594/pangaea.780552
title: (Table 3) Isotope ratios of basalts from DSDP Leg 74 holes
DOI: 10.1594/pangaea.723907
title: (Appendix 1) Helium isotopic ratios and sedimentation rate model of ODP Hole 113-690B
DOI: 10.1594/pangaea.909637
title: Table 1 - MCICPMS Pb isotope measurements Secondary Standards

description: Pb isotope results of secondary standards and calculation of external reproducibility for measurements performed on Nu Plasma MCICPMS and Neptune Plus MCICPMS, GEOMAR. Uncertainties in the table are internal measurement uncertainties reported in 2 SE format.
description: Numbers in 'Analysis run' indicate the date when the measuring session took place: 1 - Aug. 20-21, 2013; 2 - Feb. 12, 2014; 3 - Nov. 27-28, 2014; 4 - 10-13 August 2015; 5 - 4 November 2015
DOI: 10.1594/pangaea.744862
title: (Table 4) Thorium and uranium concentrations and isotope activity ratios at ODP Site 105-645
DOI: 10.1594/pangaea.708172
title: (Appendix B) Helium isotope concentrations and ratios in replicated bulk sediment samples from ODP Hole 130-806B
DOI: 10.1594/pangaea.873853
title: (Table 2) Strontium, Neodymium and Lead isotopic compositions of the residual fractions from ODP Hole 195-1202B
DOI: 10.1594/pangaea.969327
title: Detrital zircon U/Pb ages from the Nankai subduction zone (Japan)

description: U-Pb zircon age dating was applied on U-channel samples (30cc) that were collected from sandy deposits in cores from IODP Site C0024 (one sample; frontal Nankai accretionary Prism), ODP Site 1177 (two samples; Western Shikoku Basin) and IODP sites C0011 (three samples) and C0012 (one sample; Eastern Shikoku Basin). Detrital zircon U-Pb ages were measured using the London Thermochronology Research Group facilities at UCL based on a New Wave Nd: YAG 213 nm laser ablation system coupled plasma-mass spectrometry. Real time U-Pb were processed using GLITTER data reduction software. Repeated measurements of external zircon standard Plesovice (TIMS reference 337.13 +/-0.37 Myr ago) and NIST 612 silicate glass were used to correct for instrumental mass bias and depth-dependent inter-element fractionation of Pb, Th, and U. 206Pb/238U ages are used for those grain younger than 1 Ga, and for zircon grains older than 1,000 Ma we used the 207Pb/206Pb ages to determine the crystallization age.To better constrain the sediment provenance along the Nankai subduction zone, we integrated published U-Pb zircon age to our study. These include (1) potential sediment sources, e.g., Nagara, Yodo, Tenryu, Kiso and Fuji rivers from Clift et al. (2013) (https://doi.pangaea.de/10.1002/tect.20033), the Yangtze and Yellow rivers from Huang et al. (2020) (https://doi.pangaea.de/10.3390/min10050398), the Shimanto Complex from Shibata et al. (2008) (https://doi.org/10.1111/j.1440-1738.2008.00626.x) and the Sanbagawa Belt from Tsutsumi et al. (2009) (https://doi.org/10.2465/jmps.080416) and (2) published zircon ages from the frontal accretionary prism ((ODP sites 1176 and 1177 and IODP sites C0006E and C0007E; Clift et al., 2013) (https://doi.pangaea.de/10.1002/tect.20033).
DOI: 10.1594/pangaea.385649
title: Radionuclides from sediment trap Bouvet_2
DOI: 10.1594/pangaea.385648
title: Radionuclides from sediment trap Bouvet_1
DOI: 10.1594/pangaea.908150
title: Protactinium, thorium, uranium and opal of ODP Site 172-1060
DOI: 10.1594/pangaea.385646
title: Radionuclides from sediment trap AWI400/0
DOI: 10.1594/pangaea.706047
title: (Table 3) Isotope ratios of Sr, Nd and Ce and LREE concentrations in Pacific and Atlantic MORB samples from DSDP holes

description: Isotope ratios of Ce, Nd and Sr, and light rare-earth elements (La, Ce, Nd and Sm) concentrations were measured for sixteen N-type MORB samples from DSDP Sites 420, 421, 429, 597B and 597C (East Pacific Rise), 504B (Costa Rica Rift), and 395, 519A, 522B, 562 and 564 (Mid Atlantic Ridge). All the samples were confirmed as N-type MORB based on Nd and Sr isotope ratios, and LREE patterns. The Ce isotope ratios ranged from 0.0225616 (e-Ce = -1.6) to 0.0225633 (e-Ce = -1.0). Averages of e-Ce and e-Nd of N-type MORB were -1.4 and 9.5, respectively. The average of e-Ce is quite different from previous estimates. We propose that e-Ce = -1.4 should be used as the typical MORB Ce isotope ratio in future studies.
description: Supplement to: Makishima, Akio; Masuda, Akimasa (1994): Ce isotope ratios of N-type MORB. Chemical Geology, 118(1-4), 1-8
DOI: 10.1594/pangaea.816520
title: Table B. The zircon Lu-Hf isotope results of Jurassic granitoid rocks
DOI: 10.1594/pangaea.829689
title: (Table S6) Geochemistry of sediment core HU91-045-091
DOI: 10.1594/pangaea.785713
title: (Table S4) Os isotope and platinum group element content in DSDP Site 86-577

description: Sediment depth is given in mbsf. For further Os data see also Ravizza and Peucker-Ehrenbrink (2003) dataset doi:10.1594/PANGAEA.785724.
DOI: 10.1594/pangaea.897876
title: Radiogenic isotopes (Sr-Nd-Hf) from bulk sediment leachates of sediment core AMD0214-02PC from the Beaufort sea margin
DOI: 10.1594/pangaea.897877
title: Radiogenic isotopes (Sr-Nd-Hf) from bulk sediment leachates of sediment core HLY0501-01JPC from the Chukchi sea margin
DOI: 10.1594/pangaea.902878
title: Isotopic Lutetium/Hafnium data from Upper Cretaceous Barroso and Penderisco Formations and Miocene Beibaviejo Formation

description: Isotopic Hafnium data from Upper Cretaceous Barroso and Penderisco Formations and Miocene Beibaviejo Fm. Litho structural units in north-western Colombia.
description: ZUPb geocrhonology and LuHf isotopic analysis:For detrital samples 100 to 120 zircons were mounted in epoxy resin mounts. For volcanic samples between 15 and 30 grains were mounted depending on the sample yield. Zircons were mounted together with FC-1 standard zircon (Duluth Gabbro). Analyses were performed by LA- MC-ICP-MS using a Nu-Plasma® at the Center for Isotope Geoscience Laboratory in the University of Florida. The zircon grains were ablated with a New Wave® 213 nm ultraviolet laser, using a laser spot size of 20* µm for U/Pb and 40 µm for Hf. Every 10 ablations of unknown zircon samples for U/Pb were bracketed by two ablations of the FC-1 standard. We use the ²⁰⁶Pb/²³⁸U ages for zircons younger than 850 Ma and the ²⁰⁷Pb/²⁰⁶Pb ages for older data. In addition, Hf isotopic measurements were made on the same zircons analyzed for U/Pb. We selected 10 zircons for every age population cluster recorded in the U/Pb analysis considering the error (smallest errors) and grain size. Isotopic data were reduced using CALAMARI (in-house data reduction excel spreadsheet) and then plotted using Isoplot 4.5 (Botero-Garcia et al, 2019).
DOI: 10.1594/pangaea.949941
title: Radiochemical data for sediments of cores CH71-08 and CH71-09, HARMATTAN campaign of the R/V Jean Charcot on the Romanche trench area (Atlantic ocean)

description: Radiochemical analyses have been performed on 500 mg of each carbonate rich sediment sample (i.d., carbonaceous clay or mud) and 2 g for carbonate devoid samples (i.d., pelagic clay or mud). In the last case the CaCO3 part has been separated using hydrofluoric acid. After processing the samples have been dissecated at 110 Celsius and prepared as an aliquot from which a part is used for radiometric measurements using Alpha spectrometry and the other part is used for uranium-238 and thorium-232 using co-solvant precipitation.
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.This dataset represents the digitized Table 8 and Annex V-1, page 60 and 194 of the related publication.--It is worth noting that in this table the author has ratioed isotope concentrations (ex: 230TH/232Th) while measuring each of them using inherently different methods (ex: 230Th using Alpha spectrometry and 232Th using Wet chemistry determination). Thus these terms have been labeled as plain "ratio" rather than "activity ratio".
DOI: 10.1594/pangaea.909750
title: Table 5 - MCICPMS Pb isotope compositions bulk ODP Site 978 sediment leachates

description: Pb isotope results of acid-reductive leaching of late Miocene bulk sediments from ODP Leg 161 Site 978. Uncertainties in the table are internal measurement uncertainties reported to 2 SE. One sample produced a strikingly different result; to confirm, a new measurement was performed on a new portion of sediment. An average value of these measurements is provided.
description: Age uncertainty for all values ranges from 6.12 Ð 6.62 Ma based on R. rotaria, see also section Methods ODP Site 978. For measurement repeated on this sample; average of analyses given.
DOI: 10.1594/pangaea.763738
title: Tab. 4: U-Pb data for zircons, titanite and monazite from the Djupkilsodden granitoids, north-central Nordaustlandet, Svalbard
DOI: 10.1594/pangaea.847006
title: (Table 3) SHRIMP U-Pb zircon data for sample ABA/10A from Gjelsvikfjella, Dronning Maud Land
DOI: 10.1594/pangaea.949722
title: 40Ar/39Ar ages from muscovite collected in the far western Nepal Himalaya: Raw data

description: This dataset contains the cooling age results of 3 individual 40Ar/39Ar analyses using muscovite extracted from bedrock samples collected from medium-high grade metamorphic rocks along the Api transect in far western Nepal. Bedrock samples were collected for thermochronologic cooling ages to better constrain the exhumation history of the Nepal Himalaya. 40Ar/39Ar analyses were performed at the University of Vermont Noble Gas Geochronology Laboratory. The summary results include the weighted mean age and 2σ error calculated from the 40Ar/39Ar age spectra. Where a mean age and error could not be calculated, the minimum and maximum age of individual steps in the 40Ar/39Ar age spectra were used to delimit the time window the samples were exhumed through the closure temperature.
DOI: 10.1594/pangaea.900629
title: Radiosonde measurements from Neumayer Station (2018-03)

description: The meteorological observatory Neumayer typically launches one radiosonde per day around 12UTC. At least weekly the sonde has an ozone sensor attached. Sondes are released from the roof of the station building. The measurement interval of the raw data is typically 1s. Data is quality controlled: Erroneous data is removed (technical issues). Partial pressure ozone is manually validated for plausibility.
description: Station altitude is 43 m, the launch site is located 25 m higher at 68 m above sea level. The first row of each sounding holds surface data for TTT, RH, ff and dd, which is not acquired by the radiosonde. The measuring height of TTT and RH is 2m, and 10m for dd and ff. The first pressure value of each profile is derived from surface pressure measurements, reduced to the indicated altitude. A change in the sounding system results in different altitudes where the profiles start, so the lowermost altitudes are either 43 m or 68 m.
DOI: 10.1594/pangaea.763777
title: Table 2. Lead and Ba concentrations and Pb isotopic compositions measured in snow pit samples from Hercules Névé in Victoria Land, Antarctica
DOI: 10.1594/pangaea.857522
title: (Supplement EA2) Hafnium isotope ratios and major elements from Central Mexican Volcanic Belt

description: Isotope ratio normalizations are outlined in Table (Supplement EA1). Pb-Nd-Sr isotope ratios, major and trace element concentrations are reported in LaGatta (2003) and LaGatta et al., in preparation.
DOI: 10.1594/pangaea.890928
title: Uranium, thorium and protactinium activity concentrations and isotopic ratios and opal content in EW9209-3JPC sediment core
DOI: 10.1594/pangaea.804719
title: Table 1. Zircon U-Pb data by SIMS for the porphyries from the Duolong porphyry Cu-Au deposit in the Bangongco copper belt, central Tibet
DOI: 10.1594/pangaea.705046
title: (Table 1) 3He/4He and 4He/20Ne ratios in pore water and gas in deep-sea sediments at DSDP Site 111-504B
DOI: 10.1594/pangaea.722614
title: (Table 2) Trace element concentrations and Pb isotope ratios of glass shards from ODP Hole 115-711A

description: in situ measurement
DOI: 10.1594/pangaea.767478
title: Hafnium isotope composition of zircons in ODP Hole 188-1166A lower level sample
DOI: 10.1594/pangaea.57910
title: (Table 2) Annual mass fluxes, 230Th composition and organic geochemistry of sediment trap samples in the South Altantic

description: The scavenging of 231Pa and 230Th was investigated in the Atlantic Sector of the Southern Ocean by combining results from sediment trap and in situ filtration studies. We present the first high-resolution profile of dissolved 230Th and 231Pa in surface waters across the ACC, showing a dramatic southward increase of both radionuclides around the southern ACC Front at 533S. High dissolved 231Pa/230Th ratios combined with low 230Th/231Pa fractionation factors (F) in these surface waters result in extremely high 231Pa94/230Th94 ratios of material collected in the shallow traps. Particulate 231Pa94/230Th94 ratios in a shallow trap near Bouvet Island increase continuously during the productive period in austral summer, and drop back in the low flux period. This behavior, following the Rayleigh fractionation principle, is interpreted to be due to an increase in the dissolved 231Pa/230Th ratio in the euphotic zone resulting from preferential scavenging of 230Th relative to 231Pa, even in opal-dominated regions. In the post-bloom stage, the depleted radionuclide concentrations are replenished by upwelling of Circumpolar Deep Water. The high particulate 231Pa94/230Th94 signal is weakened during downward transport of the bloom particles in the water column by incorporation of deep suspended particles, which have a lower 231Pa94/230Th94 ratio. It is shown that under the special hydrographic conditions in the Southern Ocean scavenging from the upper water column significantly influences the budgets of 230Th and 231Pa in the sediment. Nevertheless, the budgets are still made up primarily by scavenging from the large standing stock of deep suspended particles.
description: Supplement to: Walter, Hans-Jürgen; Geibert, Walter; Rutgers van der Loeff, Michiel M; Fischer, Gerhard; Bathmann, Ulrich (2001): Shallow vs. deep-water scavenging of 231Pa and 230Th in radionuclide enriched waters of the Atlantic sector of the Southern Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 48(2), 471-493
DOI: 10.1594/pangaea.871180
title: (Table 2) U and Th concentrations, isotopic activity ratios, and ages of corals and coralline algae from Hilo, Hawaii collected in October 2006
DOI: 10.1594/pangaea.876479
title: (Table 2) Noble gas isotopic ratios from the Antrim Shale in the Michigan Basin

description: R/Ra = R is the measured 3He/4He ratio and Ra is the atmospheric value of 1.384 ± 0.013 × 10**-6.
DOI: 10.1594/pangaea.711300
title: (Table 3) Concentrations and isotopic ratios of thorium and uranium in sediments at ODP Site 177-1093
DOI: 10.1594/pangaea.829688
title: (Table S5) Geochemistry of composite sediment core HU91-045-080
DOI: 10.1594/pangaea.70757
title: Crust growth and isotope age, Walvis Ridge
DOI: 10.1594/pangaea.794476
title: (Table 1) Rb and Sr contents and 87Sr/86Sr ratios at DSDP Hole 89-462A basalts
DOI: 10.1594/pangaea.908151
title: Protactinium, thorium, uranium and opal of ODP Site 172-1061
DOI: 10.1594/pangaea.933366
title: U-Pb isotope ratios and trace element concentrations of carbonate-fluorapatite from phosphate nodules in Carboniferous sedimentary rocks in northern Co. Clare, Ireland

description: These data are trace element concentrations and U-Pb isotope ratios from phosphate nodules in Carboniferous-age carbonates, shales and phosphorites in Co. Clare, western Ireland. Sampling locations (both in degrees and as UTM coordinates) are also included. Mineralogically, the analysed material is apatite (species: carbonate-fluorapatite). These data are being used to support a paper which is currently under review. Data were collected by LA-Q-ICPMS in the National Centre for Isotope Geochemistry in University College Dublin, and at the iCRAG Lab @ Trinity College Dublin. Both labs are in Dublin, Ireland. Spots or portions of ablations intercepting inclusions of non-apatite phases have been excluded to ensure the accuracy of reported data. Appropriate reference materials (RMs) were used to reduce and quality-control data, including: Madagascar Fluorapatite; NIST612 glass; BHVO2G glass; Durango Fluorapatite; McClure Mountain Fluorapatite; and Bamble 2 Flour/Chlor-apatite. All secondary RMs reproduced their respective U-Pb isotopic ages or element concentrations within acceptable ranges. These processed data were reduced from raw data using Iolite 3 software. The analysis was chiefly funded under an Irish Research Council Postdoctoral Fellowship Award awarded to Gary J O'Sullivan (GOIPD/2019/906).
DOI: 10.1594/pangaea.890904
title: Sr-Nd-Hf isotope data of samples from sediment traps, shipboard-collected aerosols and Mauritanian soil samples

description: Sr-Nd-Hf isotope data of samples used in this study (from sediment traps, shipboard-collected aerosols and Mauritanian soil samples). M4-Bulk samples represent analyses on bulk sediment-trap samples, including the marine fraction.
DOI: 10.1594/pangaea.710929
title: (Table 1) Helium concentration in bulk and leached pelagic clays from Core LR44-GPC-3

description: The total volumes of acids used in all cases were 50 ml.
DOI: 10.1594/pangaea.710930
title: (Table 2) Results of stepwise degassing experiments and diffusion runs on pelagic clays from DSDP Hole 91-596B

description: For all samples duration of each step was 60 min.
DOI: 10.1594/pangaea.932255
title: Natural and anthropogenic uranium isotopes in a sediment core GeoB17409-1 from the Philippine Sea

description: Natural and anthropogenic uranium isotopes were determined in a sediment core GeoB17409-1. The age model was based on natural and artificial isotopes (Pittauer et al., 2017). 238U was determined by ICP-MS (ICP-QQQ 8800, Agilent). The ICP-MS instrument was equipped with an Xt-skimmer core and a concentric nebuliser under hot plasma conditions. The radiochemical method used for 233U and 236U determination in sediment was according to Qiao et al. (2015). 236U/238U and 233U/236U were measured by the accelerator mass spectrometry (AMS) by the 3-MV tandem accelerator facility VERA (Vienna Environmental Research Accelerator) at the University of Vienna, Austria (Qiao et al., 2022).
DOI: 10.1594/pangaea.727113
title: (Table 4) Analytical data for ODP Hole 181-1121B sediments
DOI: 10.15468/dl.bzmh62
title: Occurrence Download

description: A dataset containing 144282 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Agonopterix curvilineella Beutenmüller, 1889, Agonopterix robiniella Packard, 1870, Agriphila ruricolellus Zeller, 1863, Agrotis ipsilon (Hufnagel, 1766), Alsophila pometaria (Harris, 1841), Amydria effrentella Clemens, 1859, Anageshna primordialis Dyar, 1906, Antaeotricha leucillana Zeller, 1854, Apoda y-inversa (Packard, 1864), Archips argyrospila (Walker, 1863))",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Machine Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1990"
 ]
}

 The dataset includes 144282 records from 401 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0072084-241126133413365/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.783077
title: (Table S3) Helium isotopic data and He-based age model from ODP Site 208-1266B

description: Sediment depth is given in mcd.