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Scripts and SHERPA settings for Fragilariopsis kerguelensis valve morphometry of sediment core PS1768-8 (2018)

Kloster, Michael ; Kauer, Gerhard ; Esper, Oliver ; [et al.]

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Publication Date: 2024-06-26

Keywords: ANT-VIII/3; Gravity corer (Kiel type); Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; PS16; PS16/311; PS1768-8; Shona Ridge; SL; SPP1158

Type: Dataset

Format: application/zip, 5.6 MBytes

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Apatite radiogenic isotopes and ages of sediment core 2R at site PS104_20-2 (2019)

Klages, Johann Philipp ; Salzmann, Ulrich ; Bickert, Torsten ; [et al.]

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Publication Date: 2024-06-26

Keywords: -; Age, error; Age, mineral; Amundsen Sea; ANT-XXXII/3; AWI_Paleo; Cerium; Cerium, standard deviation; Comment; DEPTH, sediment/rock; Dysprosium; Dysprosium, standard deviation; Erbium; Erbium, standard deviation; Error, relative; Europium; Europium, standard deviation; Gadolinium; Gadolinium, standard deviation; Holmium; Holmium, standard deviation; Identification; LA-ICP-MS, Laser-ablation inductively coupled plasma mass spectrometer; Lanthanum; Lanthanum, standard deviation; Lead-206/Uranium-238, error; Lead-206/Uranium-238 ratio; Lead-207/Lead-206, error; Lead-207/Lead-206 ratio; Lead-207/Uranium-235, error; Lead-207/Uranium-235 ratio; Lithology/composition/facies; Lutetium; Lutetium, standard deviation; MeBo70; Neodymium; Neodymium, standard deviation; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; PIT-3; Polarstern; Praseodymium; Praseodymium, standard deviation; PS104; PS104_20-2; Samarium; Samarium, standard deviation; Sample ID; Strontium; Strontium, standard deviation; Terbium; Terbium, standard deviation; Thorium; Thorium, standard deviation; Thulium; Thulium, standard deviation; Uranium; Uranium, standard deviation; Uranium-238/Lead-206, error; Uranium-238/Lead-206 ratio; Ytterbium; Ytterbium, standard deviation; Yttrium; Yttrium, standard deviation

Type: Dataset

Format: text/tab-separated-values, 272 data points

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3

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Measurements of valves of the diatom Fragilariopsis kerguelensis from Southern Ocean sediment core PS1768-8 (2018)

Kloster, Michael ; Kauer, Gerhard ; Esper, Oliver ; [et al.]

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In: Supplement to: Kloster, Michael; Kauer, Gerhard; Esper, Oliver; Fuchs, Nike; Beszteri, Bánk (2018): Morphometry of the diatom Fragilariopsis kerguelensis from Southern Ocean sediment: High-throughput measurements show second morphotype occurring during glacials. Marine Micropaleontology, https://doi.org/10.1016/j.marmicro.2018.07.002

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Publication Date: 2024-06-26

Description: Fragilariopsis kerguelensis is one of the most abundant diatoms in the sediments of the Southern Ocean. Its morphometric features have been proposed as proxies, based on links with, for example, iron availability, sea surface temperature and glacial/interglacial conditions. We investigated morphometric changes in F. kerguelensis valves in a well-studied sediment core record, focusing on transition periods between glacials and interglacials. By applying a high-throughput diatom imaging and morphometry workflow, we found two clearly distinct morphotypes which were differentiated by their rectangularity. One of them occurred preferentially in glacial samples, whilst the other persisted throughout. This indicates that their relative abundances depend on environmental conditions and thereby points to the possibility that paleo-proxies based on F. kerguelensis valve morphometric features might in the future benefit from differentiating these two morphotypes. As an initial exploration of this idea, we show that the abundance ratio of both morphotypes correlates well with paleo-temperatures which had been reconstructed using independent data from the same core. Distinguishing between the two morphotypes only became possible by image analysis for precisely measuring diatom valve outlines and area, highlighting the potential of such methods for diatom analyses.

Keywords: ANT-VIII/3; Gravity corer (Kiel type); Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; PS16; PS16/311; PS1768-8; Shona Ridge; SL; SPP1158

Type: Dataset

Format: application/zip, 2 datasets

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Highly branched isoprenoids and sterols in sediment core PS69/274-1 from western Amundsen Sea, Antarctica - Corrigendum (2020)

Lamping, Nele ; Müller, Juliane ; Esper, Oliver ; [et al.]

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Publication Date: 2024-06-26

Keywords: 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene, per unit mass total organic carbon; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon; Antarctica; ANT-XXIII/4; AWI_Paleo; DEPTH, sediment/rock; GC; Gravity corer; HBIs; IPSO25; palaeoclimatology; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Phytoplankton biomarker Dinosterol IPSO25 index; Polarstern; PS69; PS69/274-1; Sea ice

Type: Dataset

Format: text/tab-separated-values, 335 data points

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Highly branched isoprenoids and sterols in sediment core PS69/274-1 from western Amundsen Sea, Antarctica (2019)

Lamping, Nele ; Müller, Juliane ; Esper, Oliver ; [et al.]

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Publication Date: 2024-06-26

Keywords: 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene, per unit mass total organic carbon; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon; Antarctica; ANT-XXIII/4; AWI_Paleo; DEPTH, sediment/rock; GC; Gravity corer; HBIs; IPSO25; palaeoclimatology; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Phytoplankton biomarker Dinosterol IPSO25 index; Polarstern; PS69; PS69/274-1; Sea ice

Type: Dataset

Format: text/tab-separated-values, 336 data points

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Documentation of sediment core PS75/072-2 (2010)

Gersonde, Rainer ; Lamy, Frank ; Steph, Silke ; [et al.]

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In: Alfred Wegener Institute - Polarstern core repository

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Publication Date: 2024-07-01

Keywords: ANT-XXVI/2; AWI_Paleo; KL; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Piston corer (BGR type); Polarstern; PS75/072-2; PS75 BIPOMAC; South Pacific Ocean

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7

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Documentation of sediment core PS75/072-2 (2010)

Gersonde, Rainer ; Lamy, Frank ; Steph, Silke ; [et al.]

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In: Alfred Wegener Institute - Polarstern core repository

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Publication Date: 2024-07-01

Keywords: ANT-XXVI/2; AWI_Paleo; KL; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Piston corer (BGR type); Polarstern; PS75/072-2; PS75 BIPOMAC; South Pacific Ocean

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Format: unknown

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