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  • PANGAEA  (23)
  • 2020-2024  (23)
Collection
Keywords
Years
Year
  • 1
    Publication Date: 2023-01-30
    Description: A total of 35 samples from the late-middle Eocene to earliest Oligocene (643.73-520.88 mbsf) were analysed for their pollen and spore content. Slides were analysed using a Leica DM500 and Leica DM2000 transmitted light microscopes at 200x and 1000x magnification. Where possible, counts of 300 (excluding reworked grains) sporomorphs were made. Only samples containing 50 or more in situ sporomorphs were used for further analysis and evaluation. Sporomorph diversity was measured using both the Shannon–Wiener index and the observed number of taxa. A rarefaction method for sums of ≥50 and ≥100 grains was applied, so that the effect caused by differences in the sample size may be removed allowing the estimation of the number of sporomorph species at a constant sample size. Detrended Correspondence Analysis (DCA) was performed, with downweighting of rare species by removing pollen types whose representation is 〈5%. Estimates for terrestrial mean annual temperature (MAT), mean annual precipitation (MAP), warmest month mean temperature (WMMT) and coldest month mean temperature (CMMT) were obtained using the NLR approach in conjunction with the Probability Density Function (PDF) method.
    Keywords: Antarctica; Drake Passage; Eocene-Oligocene Transition; palynology
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 2
    Publication Date: 2023-06-27
    Description: Concentrations of isoGDGTs and brGDGTs, All samples and corresponding depths, ages, lithology (* = generally greener intervals or very small intervals with laminations that were not incorporated into the log of Salabarnada et al., 2018), method used, isoprenoid and branched GDGT integrated values, TEX86, BIT, Methane Index (MI), GDGT-2/Crenarchaeol ratios GDGT-0/Crenarchaeol ratios and GDGT-2/GDGT-3 ratios, and #rings-tetra values. Discarded samples are indicated in the Outlier column. Discards based on BIT and #rings-tetra are indicated with an 'a'. Discarded samples with GDGT-0/Crenarchaeol ratio above 2.0 are indicated with a 'b', those with MI values above 0.3 are indicated with a 'c', those with GDGT-2/crenarchaeol ratios above 0.4 with 'd' and those with ΔRI value above 0.6 with an 'O'. Discarded samples taken from mass waste deposits are underlined.Note that data from mass waste deposits are included in this dataset, but may have to be discarded.
    Keywords: 318-U1356A; Age model; Age model, Gradstein et al. (2012) GTS2012; Analytical method; Antarctica; Branched and isoprenoid tetraether index; Branched glycerol dialkyl glycerol tetraether, Ia (peak area); Branched glycerol dialkyl glycerol tetraether, IIa (peak area); Branched glycerol dialkyl glycerol tetraether, IIIa (peak area); Crenarchaeol (peak area); Crenarchaeol isomer (peak area); Cyclopentane rings in tetramethylated branched glycerol dialkyl glycerol tetraether; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; Exp318; GDGT; IODP; Isoprenoid acyclic glycerol dialkyl glycerol tetraether (peak area); Isoprenoid dicyclic glycerol dialkyl glycerol tetraether (peak area); Isoprenoid monocyclic glycerol dialkyl glycerol tetraether (peak area); Isoprenoid tricyclic glycerol dialkyl glycerol tetraether (peak area); Joides Resolution; Main Lithology; Methane index; Miocene; Oligocene; Ratio; Ring index; Sample code/label; Sample comment; Tetraether index of 86 carbon atoms; U1356; Wilkes Land
    Type: Dataset
    Format: text/tab-separated-values, 3260 data points
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  • 3
    Publication Date: 2023-06-27
    Keywords: 113-696B; Acaena spp.; AGE; Alisporites cf. Australis; Antarctica; Araucariacites australis; Arecipites spp.; Baculatisporites comaumensis; Beaupreaidites cf. verrucosus; Beaupreaidites diversiformis; Camarozonosporites sp.; Ceratosporites cf. equalis; Chenopodipollis chenopodiaceoides; Clavatipollenites ascarinoides; Coptospora archangelskyi; Counting, light microscope; Cupanieidites orthoteichus; Cyathidites australis; Cyathidites minor; Cyathidites splendens; Cyathidites subtilis; Dacrydiumites florinii; DEPTH, sediment/rock; Dictyophyllidites arcuatus; Dilwynites granulatus; Drake Passage; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Eocene-Oligocene Transition; Ericipites cf. scabratus; Foveotriletes lacunosus; Gleicheniidites spp.; Integricorpus sp.; Ischyosporites gremius; Joides Resolution; Laevigatosporites major; Laevigatosporites ovatus; Lateropora glabra; Leg113; Ligulifloridites sp.; Liliacidites intermedius; Lymingtonia cf. cenozoica; Malvacipollis cf. subtilis; Microalatidites paleogenicus; Microcachryidites antarcticus; Monolites alveolatus; Myricipites harrisii; Myrtaceidites cf. mesonesus; Nothofagidites asperus complex; Nothofagidites brachyspinulosus complex; Nothofagidites emarcidus complex; Nothofagidites flemingii; Nothofagidites lachlaniae complex; Nothofagidites rocaensis complex; Nothofagidites spp.; Osmundacidites cf. wellmanii; palynology; Parsonsidites psilatus; Peninsulapollis gillii; Periporopollenites polyoratus; Peromonolites cf. densus; Phyllocladidites cf. mawsonii; Phyllocladidites mawsonii; Podocarpidites cf. exiguus; Podocarpidites marwickii complex; Podocarpidites rugulatus complex; Podocarpidites spp.; Podosporites cf. brevisaccatus; Podosporites cf. ohikaensis; Podosporites parvus; Pollen and spores; Polycolporopollenites; Polypodiisporites cf. radiatus; Proteacidites adenanthoides; Proteacidites cf. amolosexinus; Proteacidites cf. Lewalanipollis trycheros; Proteacidites cf. Scabratriporites spp.; Proteacidites minimus; Proteacidites obscurus; Proteacidites parvus; Proteacidites reticuloscabratus; Proteacidites scaboratus; Proteacidites sp.; Proteacidites spiniferus; Proteacidites tenuiexinus; Proteacidites tuberculatus; Retitriletes spp.; Rugulatisporites spp.; Sample code/label; Scabramonoletes; Sparganiaceaepollenites barungensis; Stereisporites antiquasporites; Stereisporites regium; Trichotomosulcites subgranulatus; Tricolpites cf. asperamarginis; Tricolpites cf. brevicolpus; Tricolpites cf. delicatulus; Tricolpites fissilis; Tricolpites inargutus; Tricolpites lilliei; Tricolpites reticulatus; Tricolpites sp.; Tricolpites spp.; Tricolporites cf. scabratus; Tricolporites sp.; Triorites sp.; Tripunctisporis maastrichtiensis; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 3535 data points
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  • 4
    Publication Date: 2023-06-27
    Keywords: 113-696B; AGE; Antarctica; Biretisporites cf. labruplenus; Brevitriletes bulliensis; Brevitriletes sp.; Calamospora spp.; Cibotiumspora cf. intrastriatus; Cicatricosisporites sp.; Classopollis spp.; Clavatipollenites hughesii; Coptospora striata; Counting, light microscope; Cyatheacidites annulatus; DEPTH, sediment/rock; Dictyophyllidites cf. harrisii; Drake Passage; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Eocene-Oligocene Transition; Granulatisporites trisinus; Joides Resolution; Leg113; Leptolepidites verrucatus; Lycopodiacidites cf. bullerensis; Lycopodiacidites cristatus; Lycopodiumsporites pseudoreticulatus; palynology; Pollen, bisaccate undifferentiated; Pollen and spores; Protohaploxypinus cf. samoilovichii; Protohaploxypinus spp.; Retitriletes cf. eminulus; Retitriletes cf. reticulumsporites; Rugulatisporites cf. trisinus; Sample code/label; Spores, trilete undifferentiated; Tricolpites cf. pachyexinus; Trilites verrucatus; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 945 data points
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  • 5
    Publication Date: 2023-06-27
    Keywords: 113-696B; AGE; Antarctica; Calculated; Correspondance analysis factor; DEPTH, sediment/rock; Detrended Correspondence Analysis; Drake Passage; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Eocene-Oligocene Transition; Joides Resolution; Leg113; palynology; Precipitation, annual mean; Precipitation, annual mean, standard deviation; Rarefaction; Sample code/label; Shannon Diversity Index; Temperature, annual mean; Temperature, annual mean, standard deviation; Temperature, coldest month; Temperature, coldest month, standard deviation; Temperature, warmest month; Temperature, warmest month, standard deviation; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 368 data points
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  • 6
    Publication Date: 2024-04-25
    Keywords: dinocyst; MBT; NLR; OUTCROP; Outcrop sample; Paleocene; Paleocene Eocene Thermal Maximum; Point_Margaret; Quantile; Sample number; SECTION, height; Temperature, air, annual mean; TEX86
    Type: Dataset
    Format: text/tab-separated-values, 344 data points
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  • 7
    Publication Date: 2024-04-25
    Keywords: dinocyst; Dinoflagellate cyst; MBT; NLR; OUTCROP; Outcrop sample; Paleocene; Paleocene Eocene Thermal Maximum; Point_Margaret; TEX86
    Type: Dataset
    Format: text/tab-separated-values, 31 data points
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  • 8
    Publication Date: 2024-04-25
    Keywords: Branched and isoprenoid tetraether index; Branched glycerol dialkyl glycerol tetraether; Branched glycerol dialkyl glycerol tetraether, Ia (peak area); Branched glycerol dialkyl glycerol tetraether, Ib (peak area); Branched glycerol dialkyl glycerol tetraether, Ic (peak area); Branched glycerol dialkyl glycerol tetraether, IIa' (peak area); Branched glycerol dialkyl glycerol tetraether, IIa (peak area); Branched glycerol dialkyl glycerol tetraether, IIb' (peak area); Branched glycerol dialkyl glycerol tetraether, IIb (peak area); Branched glycerol dialkyl glycerol tetraether, IIc' (peak area); Branched glycerol dialkyl glycerol tetraether, IIc (peak area); Branched glycerol dialkyl glycerol tetraether, IIIa' (peak area); Branched glycerol dialkyl glycerol tetraether, IIIa (peak area); Branched glycerol dialkyl glycerol tetraether, IIIb' (peak area); Branched glycerol dialkyl glycerol tetraether, IIIb (peak area); Branched glycerol dialkyl glycerol tetraether, IIIc' (peak area); Branched glycerol dialkyl glycerol tetraether, IIIc (peak area); Branched glycerol monoalkyl glycerol tetraethers, H1020a (peak area); Branched glycerol monoalkyl glycerol tetraethers, H1020b (peak area); Branched glycerol monoalkyl glycerol tetraethers, H1020c (peak area); Branched glycerol monoalkyl glycerol tetraethers, H1034 (peak area); Branched glycerol monoalkyl glycerol tetraethers, H1034b (peak area); Branched glycerol monoalkyl glycerol tetraethers, H1048 (peak area); Branched glycerol monoalkyl glycerol tetraethers, H744 (peak area); Branched glycerol monoalkyl glycerol tetraethers index; Calculated according to De Jonge et al. (2014); Calculated according to Schouten et al. (2002); Calculated after Baxter et al. (2019); Calculated after Hopmans et al. (2004); Calculated after Naafs et al. (2017); Calculated after Sinninghe Damsté (2016); Calculated after Zhang et al. (2011); Crenarchaeol (peak area); Crenarchaeol isomer (peak area); dinocyst; Glycerol dialkyl glycerol tetraether, per unit sediment mass; Isomer ratio; Isoprenoid acyclic glycerol dialkyl glycerol tetraether (peak area); Isoprenoid dicyclic glycerol dialkyl glycerol tetraether (peak area); Isoprenoid glycerol dialkyl glycerol tetraether, 5 (peak area); Isoprenoid monocyclic glycerol dialkyl glycerol tetraether (peak area); Isoprenoid tricyclic glycerol dialkyl glycerol tetraether (peak area); Mass; MBT; Methylation index of branched tetraethers; NLR; OUTCROP; Outcrop sample; Paleocene; Paleocene Eocene Thermal Maximum; Point_Margaret; Ring index; Ring index of tetraether index of 86 carbon atoms; Sample number; SECTION, height; Tetraether index of 86 carbon atoms; TEX86; Ultra high performance liquid chromatography mass spectrometer (UHPLC-MS); ΔRing index
    Type: Dataset
    Format: text/tab-separated-values, 3691 data points
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  • 9
    Publication Date: 2024-04-25
    Keywords: CDRILL; Core drilling; DEPTH, sediment/rock; dinocyst; Dinoflagellate cyst; Dinoflagellate cyst, per unit sediment mass; Latrobe-1; Mass; MBT; NLR; Paleocene; Paleocene Eocene Thermal Maximum; Sporomorphes, total; TEX86
    Type: Dataset
    Format: text/tab-separated-values, 297 data points
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  • 10
    Publication Date: 2024-04-25
    Keywords: CDRILL; Core drilling; dinocyst; Dinoflagellate cyst; Latrobe-1; MBT; NLR; Paleocene; Paleocene Eocene Thermal Maximum; TEX86
    Type: Dataset
    Format: text/tab-separated-values, 31 data points
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