n-alkanes of core 9R and 10R from MARUM-MeBo70 Site PS104_20-2

Dataset

DOI

Here we present n-alkanes from the mid-Cretaceous layer in drill core 9R and 10R at MARUM-MeBo70 Site PS104_20-2 (73.57°S, 107.09°W; 946 m water depth) for reconstructing past wildfire activity and vegetation near the South Pole. The site is located within the Pine Island cross-shelf trough in the Amundsen Sea Embayment (ASE), West Antarctica and was drilled during RV Polarstern Expedition PS104 in 2017. Ratios of C23/C31 and C23/C15 n-alkanes have been proposed as biomarker proxies for fossil Sphagnum dominated peat bogs.

Identifier
DOI	https://doi.pangaea.de/10.1594/PANGAEA.995121
Related Identifier	IsPartOf https://doi.pangaea.de/10.1594/PANGAEA.994798
Metadata Access	https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.995121

Provenance
Creator	Salzmann, Ulrich ; Bauersachs, Thorsten ; Klages, Johann Philipp ; Gerschel, Henny; Müller, Juliane ; Heinz, Immo; Hillenbrand, Claus-Dieter ; Bohaty, Steven M; Bickert, Torsten ; Titschack, Jürgen ; Kaschuro, Sergej; Nehrke, Gernot ; Pälike, Heiko ; Science Party of Expedition PS104
Publisher	PANGAEA
Publication Year	2026
Rights	Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess	false

Representation
Resource Type	Dataset
Format	text/tab-separated-values
Size	231 data points
Discipline	Earth System Research
Spatial Coverage	(-107.092 LON, -73.568 LAT); Amundsen Sea
Temporal Coverage Begin	2017-02-21T01:21:00Z
Temporal Coverage End	2017-02-23T03:51:00Z