GLORIA — GEOMAR Library Ocean Research Information Access

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Alkenone data and sea surface temperature reconstructions of sediment core AXC1432 from Nørre Skjoldungesund, Greenland shelf (2019)

Wangner, David Johannes ; Sicre, Marie-Alexandrine ; Kjeldsen, Kristian Kjellerup ; [et al.]

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Publication Date: 2023-02-22

Keywords: 24-Methylcholesta-5,22E-dien-3beta-ol per unit sediment mass; Age; AGE; Alkenone, C37; AXC1432; Calculated from C37 alkenones (Prahl & Wakeham, 1987); CDRILL; Core drilling; DEPTH, sediment/rock; Nørre Skjoldungesund, Greenland; Sea surface temperature, annual mean; Sea surface temperature, annual mean, maximum; Sea surface temperature, annual mean, minimum; SST, from UK'37, BAYSPLINE (Tierney and Tingley, 2018)

Type: Dataset

Format: text/tab-separated-values, 777 data points

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Reworked pollen and sporen counts from ODP Hole 113-696B (2021)

Thompson, Nick ; Salzmann, Ulrich ; López-Quirós, Adrián ; [et al.]

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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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Sea surface temperature reconstruction, ice-rafted debris measurements, and age model of core FOX12-02R (2019)

Vermassen, Flor ; Bjørk, Anders Anker ; Sicre, Marie-Alexandrine ; [et al.]

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In: Supplement to: Vermassen, Flor; Bjørk, Anders Anker; Sicre, Marie-Alexandrine; Jaeger, John M; Wangner, David Johannes; Kjeldsen, Kristian Kjellerup; Siggaard-Andersen, Marie-Louise; Klein, Vincent; Mouginot, Jeremie P; Kjær, Kurt Henrik; Andresen, Camilla S (2020): A Major Collapse of Kangerlussuaq Glacier's Ice Tongue Between 1932 and 1933 in East Greenland. Geophysical Research Letters, 47(4), https://doi.org/10.1029/2019GL085954

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Publication Date: 2023-12-15

Description: This dataset includes the SST reconstruction, ice-rafted debris measurements, and age model of core FOX12-02R. In recent years, several large outlet glaciers in Greenland have lost their floating ice tongue, but little is known about their stability over longer time-scales. Here, we compile historical documents to demonstrate a major ice tongue collapse of Kangerlussuaq Glacier between 1932- 1933. This event resulted in nine kilometer retreat, which is more than during any of the glacier's recent major retreat events. Sediment cores from the fjord are used to reconstruct sea surface temperatures (SSTs) and to investigate a potential sedimentological trace of the collapse. Local SSTs increased during the 1920s, consistent with other regional air and ocean temperature records, suggesting a climatic trigger for the collapse. Fjord bathymetry played an important role too, as the (partially-) pinned ice tongue retreated off a submarine moraine during the event. This historical analogue of glacier tongue collapse emphasizes the fragility of remaining ice tongues in North Greenland within a warming climate.

Keywords: Age model; FOX12-02R; IRD; SEDCO; Sediment corer; SST; UK'37

Type: Dataset

Format: application/zip, 3 datasets

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