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Brünjes, Jonas; Schubotz, Florence; Teske, Andreas P; Seidel, Michael (2025): Analysis of porewater and bottom water dissolved organic matter of hydrothermal sediments in the Guaymas Basin [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.966710

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Published: 2025-01-22 • DOI registered: 2025-03-12

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Abstract:
Analysis of porewater and bottom water dissolved organic matter (DOM) of hydrothermal sediments (3 to 106 C) in the Guaymas Basin. Samples were taken by HOV Alvin during cruise Atlantis AT 42-05 in November 2018. Dataset contains quantitative and qualitative analysis of bulk water and solid-phase extracted (SPE) DOM. We determined DOC and TDN concentrations of bulk water and SPE-DOM along with absorbance and fluorescence measurements. Fluorescence of excitation-emission matrices (EEMs) was decomposed by parallel factor analysis (PARAFAC) and resolved in 7 components. SPE-DOM was analyzed on the molecular level by ultrahigh-resolution mass spectrometry (FT-ICR-MS) and individual molecular formulae were assigned.
Keyword(s):
deep sea sediment; Dissolved Organic Matter; FT-ICR-MS; hydrothermal activity; Oil seeps; PARAFAC; porewater; sulfurization
Related to:
Brünjes, Jonas; Schubotz, Florence; Teske, Andreas P; Seidel, Michael (2025): Molecular composition of dissolved organic matter from young organic‐rich hydrothermal deep‐sea sediments. Limnology and Oceanography, lno.12812, https://doi.org/10.1002/lno.12812
Project(s):
Center for Marine Environmental Sciences (MARUM)
Funding:
German Research Foundation (DFG), grant/award no. 390741603: EXC 2077: The Ocean Floor – Earth's Uncharted Interface
Coverage:
Median Latitude: 27.007803 * Median Longitude: -111.370827 * South-bound Latitude: 27.006250 * West-bound Longitude: -111.409550 * North-bound Latitude: 27.011430 * East-bound Longitude: -111.244200
Date/Time Start: 2018-11-18T00:00:00 * Date/Time End: 2018-11-26T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2 datasets

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Datasets listed in this publication series

  1. Brünjes, J; Schubotz, F; Teske, AP et al. (2025): Quantitative and qualitative DOM analysis of porewater and bottom water samples from the Guaymas Basin. https://doi.org/10.1594/PANGAEA.966674
  2. Brünjes, J; Schubotz, F; Teske, AP et al. (2025): Assigned molecular formulae and normalized intensities of measured samples from the Guaymas Basin. https://doi.org/10.1594/PANGAEA.966639