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Petrology of the Ocean Crust

Joely Marie Maak

Joely Marie Maak on board a research vessel as the sun sets.
© MARUM

Joely Marie Maak

GEO Room 5350
Klagenfurter Straße 2-4
28359 Bremen, Germany


Phone: +49 421 218 65585
Email

More information on the MARUM website

  • Element cycling in hydrothermal systems
  • Fluid-microbe-mineral interactions
  • Isotope geochemistry (including stable carbon and radiocarbon, hydrogen, and sulfur isotope systems)

Curriculum vitae

Scientific career

since Apr. 2026Postdoc in the "Petrology of the Ocean Crust" group of Prof. Bach, University of Bremen
March 2026PhD in Geosciences, University of Bremen
2023-2026PhD student, University of Bremen
Feb. 2023MSc. degree in Geosciences, University of Hamburg (Grade: 1.00, “passed with distinction”)
2020-2022MSc.  “Geology”, University of Hamburg
Sept. 2020BSc. degree in Geosciences, University of Hamburg (Grade: 1.34)
2017-2020BSc.  "Geosciences", University of Hamburg

Expeditions

    Publications

    • Maak JM, Röttgen C, Winkelhues B, Anagnostou E, Bühring SI, Koschinsky A, Liao J, Strauss H, Vogt C, Bach W, Schefuß E, Elvert M (2026): Impact of fluid flow on bacterial carbon and sulfur cycling, Mineral precipitation, and transformation in hydrothermal sediments off the coast of Milos. Journal of Geophysical Research: Biogeosciences 131(7), e2026JG009869.
      | doi:10.1029/2026JG009869 |
    • Maak JM, Elvert M, Grotheer H, Lin Y-S, Mollenhauer G, Lin I-T, Bühring SI, Schefuß E (2026): Physicochemical controls on ancient carbon assimilation into ecosystem biomass in shallow-water hydrothermal systems. Communications Earth and Environment. 7, 216.
      | doi:10.1038/s43247-026-03254-z |
    • Nomikou P, Bejelou K, Koschinsky A, dos Santos Ferreira C, Papanikolaou D, Lampridou D, Kilias SP, Anagnostou E, Elvert M, Röttgen C, Maak JM, Bach A, Bach W, Belka A, Bazhenova E, Haase K, Kleint C, Kothri S, Kumawat P, Kurahashi E, Liao J, Meckel E-M, Pedre I, Schäfer W, Schefuss E, Seidel M, Varotsou E, Bühring SI (2025): Structural control and depth clustering of extensive hydrothermal venting on the shelf of Milos island. Scientific Reports 15, 42359.
      | doi: 10.1038/s41598-025-26398-y |
    • Maak JM, Lin Y-S, Schefuß E, Aepfler RF, Liu L-L, Elvert M, Bühring SI (2025): The energy-efficient reductive tricarboxylic acid cycle drives carbon uptake and transfer to higher trophic levels within the Kueishantao shallow-water hydrothermal system, Biogeosciences 22, 1853–1863.
      | doi:10.5194/bg-22-1853-2025 |
    • Maak JM, Birgel D, Reitner J, Gischler E, Dullo W-C, Foster WJ, Peckmann J (2024): Molecular fossils in reefal carbonates and sponges of the deep fore reef of Mayotte and Mohéli, Comoro Islands, western Indian Ocean. Facies  70, 3.
      | doi:10.1007/s10347-023-00678-3 |
    • Schaefer T, Wen L, Estelmann A, Maak JM, Herrmann H (2020): pH – and temperature-dependent kinetics of the oxidation reactions of OH with succinic and pimelic acid in aqueous solution. Atmosphere  11(4), 320.
      | doi:10.10.3390/atmos11040320 |

    PhD Thesis

    • Maak JM (2025): Fluid flow shapes microbial carbon cycling and mineral formation in shallow-water hydrothermal vents. PhD Thesis, University of Bremen

     

    Updated by: Patrick Monien
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