Stock, Lennart; Wegener, Gunter; Akeerath Mundanatt, Aman; Altun, Jenny; Dirksen, Lukas; Elvert, Marcus (2026): Total organic carbon in sediments from cold seep core MUC09-3 and reference core MUC08-4 at Astoria Canyon, Cascadia Margin, Oregon USA [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996874 (DOI registration in progress)
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Published: 2026-09-02
Abstract:
This dataset contains measurements of lipid biomarkers, disaccharides, monosaccharides, amino acids, and total organic carbon (TOC) in sediments and pore fluids collected from a cold seep at Astoria Canyon, Cascadia Margin, Oregon, USA. The data are part of a larger seep dataset comprising complementary geochemical and molecular measurements. Associated data are available through the Biological and Chemical Oceanography Data Management Office (BCO-DMO), including the dataset available under DOI 10.26008/1912/bco-dmo.959765.1. 16S rRNA gene amplicon sequencing data are available through the European Nucleotide Archive (ENA; PRJEB97184). The data presented here are archived in PANGAEA and comprise measurements of lipid biomarkers, carbohydrates, amino acids, and total organic carbon in the analyzed sediment and pore-fluid samples.
Keyword(s):
Related to:
Stock, Lennart; Wegener, Gunter; Pohlman, John W; Lapham, Laura L; Lloyd, Karen; Williams, L; Torset, Stian; Lalk, Ellen; Hildebrand, Anna; Dirksen, Lukas; Akeerath Mundanatt, Aman; Wilson, Rachel; Seewald, Jeffrey S; Liebeke, Manuel; Elvert, Marcus (preprint): WITHDRAWN: Disaccharide production in marine cold seeps links dissolved organic carbon to anaerobic oxidation of methane. https://doi.org/10.21203/rs.3.rs-9427392/v2
References:
H2 concentrations in highly active deep-sea methane seep sediments in Hydrate Ridge and Astoria Canyon (2026). European Nucleotide Archive (ENA), insdc:PRJEB97184
Lalk, Ellen; Pohlman, John W; Lapham, Laura L; Casso, Michael; Glenna, Madeline; Hildebrand, Anna; Lloyd, Karen; Ma, Kun; Seewald, Jeffrey S; Stock, Lennart; Strauss, Maureen A; Sylva, Sean P; Traver, Lily; Wilson, Rachel; Williams, L (2025): Porewater dissolved organic carbon and associated geochemical data for methane seeps in the Cascadia Margin: Astoria Canyon, Barkley Canyon, Hydrate Ridge, and Bullseye Vent [dataset]. Biological and Chemical Oceanography Data Management Office (BCO-DMO), https://doi.org/10.26008/1912/BCO-DMO.959765.1
Lapham, Laura L (2023): AT50-14, Investigating the source and flux of dissolved organic carbon released from methane seeps to the deep-ocean [dataset]. Rolling Deck to Repository (R2R) Program, https://doi.org/10.7284/910142
Funding:
German Research Foundation (DFG), grant/award no. 390741603: EXC 2077: The Ocean Floor – Earth's Uncharted Interface
National Science Foundation (NSF), grant/award no. OCE-2049517, OCE-2048357, and OCE-2048831: SeepDOM
Coverage:
Median Latitude: 46.240765 * Median Longitude: -124.614000 * South-bound Latitude: 46.240740 * West-bound Longitude: -124.625000 * North-bound Latitude: 46.240790 * East-bound Longitude: -124.603000
Date/Time Start: 2023-08-17T00:00:00 * Date/Time End: 2023-08-19T00:00:00
Minimum DEPTH, sediment/rock: 0.015 m * Maximum DEPTH, sediment/rock: 0.360 m
Event(s):
AT50-14_MUC08-4 * Latitude: 46.240740 * Longitude: -124.625000 * Date/Time: 2023-08-17T00:00:00 * Elevation: -822.6 m * Location: Astoria Canyon, Oregon, USA * Campaign: AT50-14 (SeepDOM) * Basis: Atlantis (1997) * Method/Device: MultiCorer (MUC)
AT50-14_MUC09-3 (H867) * Latitude: 46.240790 * Longitude: -124.603000 * Date/Time: 2023-08-19T00:00:00 * Elevation: -759.6 m * Location: Astoria Canyon, Oregon, USA * Campaign: AT50-14 (SeepDOM) * Basis: Atlantis (1997) * Method/Device: MultiCorer (MUC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Stock, Lennart | |||
| 2 | Identification | ID | Stock, Lennart | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Stock, Lennart | Geocode – mbsf | |
| 4 | Type | Type | Stock, Lennart | |||
| 5 | Carbon, organic, total | TOC | % | Stock, Lennart | Elemental Analyzer, Thermo Scientific, Flash 2000 | wt% |
| 6 | δ13C, total organic carbon | δ13C TOC | ‰ PDB | Stock, Lennart | Elemental Analyzer, Thermo Scientific, Flash 2000; coupled to Delta V Plus IRMS | vs. VPDB |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
60 data points
Data
| 1 Event | 2 ID | 3 Depth sed [m] | 4 Type | 5 TOC [%] | 6 δ13C TOC [‰ PDB] |
|---|---|---|---|---|---|
| AT50-14_MUC08-4 | 276 | 0.060 | Reference | 2.3 | -25.0 |
| AT50-14_MUC08-4 | 278 | 0.160 | Reference | 2.4 | -24.8 |
| AT50-14_MUC08-4 | 280 | 0.260 | Reference | 2.3 | -25.5 |
| AT50-14_MUC08-4 | 282 | 0.360 | Reference | 2.2 | -25.2 |
| AT50-14_MUC09-3 | 335 | 0.015 | Cold seep | 2.8 | -23.7 |
| AT50-14_MUC09-3 | 336 | 0.045 | Cold seep | 2.7 | -24.5 |
| AT50-14_MUC09-3 | 337 | 0.075 | Cold seep | 2.7 | -27.5 |
| AT50-14_MUC09-3 | 338 | 0.105 | Cold seep | 2.8 | -27.1 |
| AT50-14_MUC09-3 | 339 | 0.135 | Cold seep | 2.8 | -26.6 |
| AT50-14_MUC09-3 | 340 | 0.165 | Cold seep | 2.7 | -26.6 |
| AT50-14_MUC09-3 | 341 | 0.195 | Cold seep | 2.6 | -27.3 |
| AT50-14_MUC09-3 | 342 | 0.225 | Cold seep | 2.6 | -26.9 |
| AT50-14_MUC09-3 | 343 | 0.255 | Cold seep | 2.3 | -25.2 |
| AT50-14_MUC09-3 | 344 | 0.285 | Cold seep | 2.2 | -25.5 |
| AT50-14_MUC09-3 | 345 | 0.315 | Cold seep | 2.2 | -25.9 |