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Zhu, Qing-Zeng; Elvert, Marcus; Meador, Travis B; Becker, Kevin W; Heuer, Verena B; Hinrichs, Kai-Uwe (2021): Archaeal lipid concentration and isotopic data in sediments from expeditions M84/1 and POS450 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.930327

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Published: 2021-04-14 • DOI registered: 2021-06-10

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Abstract:
Archaea occupy an important niche in the global carbon cycle and their lipids are widely used as indicators of environmental conditions in both paleoenvironmental and modern biogeochemical studies. The principal sources of archaeal lipids in marine sediments are benthic archaea, fossil remnants of planktonic archaea, and allochthonous sources such as soils. However, the relative contributions of these sources to the sedimentary lipid pool have not been comprehensively constrained, complicating a mechanistic understanding of archaeal lipid proxies. In order to provide insights into the relative contributions of these sources and identify signals derived from the sedimentary activity, we performed a systematic survey of concentrations and stable carbon isotopic compositions of both core and intact archaeal lipids The sample set consisted of 44 sediment horizons from the Mediterranean and adjacent basins and represented diverse sources of organic matter and depositional conditions.
Keyword(s):
Archaea; Butanetriol dibiphytanyl glycerol tetraethers; Geochemical zones; Glycerol dibiphytanyl glycerol tetraethers; in situ production; Intact polar lipids; marine sediments; stable carbon isotopes; Terrestrial input
Supplement to:
Zhu, Qing-Zeng; Elvert, Marcus; Meador, Travis B; Becker, Kevin W; Heuer, Verena B; Hinrichs, Kai-Uwe (2021): Stable carbon isotopic compositions of archaeal lipids constrain terrestrial, planktonic, and benthic sources in marine sediments. Geochimica et Cosmochimica Acta, https://doi.org/10.1016/j.gca.2021.04.037
Project(s):
Deep subsurface Archaea: carbon cycle, life strategies, and role in sedimentary ecosystems (DARCLIFE)
Funding:
Seventh Framework Programme (FP7), grant/award no. 247153: Deep subsurface Archaea: carbon cycle, life strategies, and role in sedimentary ecosystems
Coverage:
Median Latitude: 38.425533 * Median Longitude: 18.258980 * South-bound Latitude: 33.027000 * West-bound Longitude: 3.483330 * North-bound Latitude: 43.316170 * East-bound Longitude: 32.633000
Date/Time Start: 2011-02-14T12:50:00 * Date/Time End: 2013-04-07T12:06:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2 datasets

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Datasets listed in this bundled publication

  1. Zhu, Q-Z; Elvert, M; Meador, TB et al. (2021): Archaeal lipid carbon isotopic data in sediments from expeditions M84/1 and POS450. https://doi.org/10.1594/PANGAEA.930286
  2. Zhu, Q-Z; Elvert, M; Meador, TB et al. (2021): Archaeal lipid concentration data in sediments from expeditions M84/1 and POS450. https://doi.org/10.1594/PANGAEA.930324