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Joely Marie Maak

Gruppe: 

Molecular Paleoclimatology

Telefon: 

+49 421 218-65585

E-Mail:

Raum: 

MARUM I, 1340

Joely Marie Maak

Curriculum Vitae

Since Jan. 2023

Ph.D. Stu­dent at MARUM and GLOMAR Gra­dua­te School

Pro­ject: Incorporation of aged carbon from the ocean floor into the marine carbon cycle and its sediment record (Re­se­arch Unit RE­COR­DER)

Oct. 2020 - Dec. 2022

M. Sc. Geowissenschaften, Universität Hamburg

Master thesis: Molecular fossils in microbial carbonates and sponges of the deep fore reef of Mayotte and Mohéli

Supervisors: Dr. Daniel Birgel (Universität Hamburg), Prof. Dr. Jörn Peckmann (Universität Hamburg), and Prof. Dr. Joachim Reitner (University of Göttingen)

Oct. 2017 - Sep. 2020

B. Sc. Geowissenschaften, Universität Hamburg

Bachelor thesis: Impact of environmental parameters on methane oxidation in tundra soils

Supervisors: Dr. Christian Knoblauch and Prof. Dr. Eva-Maria Pfeiffer (Universität Hamburg)

Research cruises and sampling trips

03/2025 - 05/2025

SO311 DRILLBROTHERS Wellington - Auckland
10/2024 Sampling shallow hydrothermal vents Milos, Greece
10/2023 Sampling shallow hydrothermal vents Milos, Greece
08/​2023 - 09/​2023 M192 BRIDGEHELL Piräus - Limassol
05/2022 - 06/2022 SO292 ICECARB Nouméa - Nouméa
05/2021 HE577 Bremerhaven - Bremerhaven


Publications:

  • Maak, JM, Lin, Y-S, Schefuß, E, Aepfler, R F, 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, https://doi.org/10.5194/bg-22-1853-2025
  • Maak, JM, Birgel, D, Reitner, J, Gischler, E, Dullo, W-C, Foster, W J, 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. https://doi.org/10.1007/s10347-023-00678-3
  • Schaefer T, Wen L, Estelmann A, Maak J, Herrmann H (2020) pH – and temperature-dependent kinetics of the oxidation reactions of OH with succinic and pimelic acid in aqueous solution. Atmosphere. https://doi.org/10.3390/atmos11040320

Conferences:

  • Maak, JM, Elvert, M, Grotheer, H, Lin, Y, Mollenhauer, G, Lin, IT, Bühring, S, Schefuß, E: The fate of vent-derived 14C-dead carbon at shallow-water hydrothermal systems (Plenary Talk); International Meeting on Organic Geochemistry (IMOG 2025), Porto, Portugal.
  • M Elvert, JM Maak, C Röttgen, E Anagnostou, A Koschinsky, J Liao, P Nomikou, SI Bühring, E Schefuß : Geochemical controls on microbial lipid distributions in hydrothermal sediments off Milos (Greece) (Talk); International Meeting on Organic Geochemistry (IMOG 2025), Porto, Portugal.
  • Maak, JM, Röttgen, C, Schefuß, E, Anagnostou, E, Buehring, SI, Cudmore, C, Hampel, F, Koschinsky, A, Liao, J, Nomikou, P, Vogt, C, Winkelhues, B, Bach, W, Elvert, M: Sulfur as the link between geochemistry, mineralogy, and microbial life in submarine hydrothermal systems (Talk); Goldschmidt 2025, Prague, Czech Republic.
  • Dimou, E, Papoutsa, A, Chi Fru, E, Pletsas, V, Zegkinoglou, N, Kilias, S, Nomikou, P, Polymenakou, P, Maak, JM: Arsenic-sulfide mineralization as a key mechanism for biomass preservation in seafloor massive sulfide hydrothermal diffuser chimneys (Talk); Goldschmidt 2025, Prague, Czech Republic.
  • Maak, JM, Elvert, M, Lin, YS, Grotheer, H, Mollenhauer, G, Nomikou, P, Röttgen, C, Anagnostou, E, Bühring, SI, Schefuß, E: Dynamics of aged-carbon injections at shallow-water hydrothermal systems (Talk and Poster); Gordon Research Conference and Seminar on Organic Geochemistry (GRS and GRC 2024), Holderness, USA.
  • Papoutsa, A, Pletsas, V, Kilias, S, Dimou, E, Polymenakou, P, Nomikou, P, Papadimitriou, V, Maak, J, Ivarsson, M, Kyrpides, N: Raman spectroscopy evidence for arsenic-sulfide mineralized diatom-like structures in deep-sea hydrothermal vents at Kolumbo: contribution to arsenic biomineralization; GEORAMAN 2024, Rhodes, Greece.
  • Maak, JM, Elvert, M, Elling, F, Lin, YS, Bühring, SI, Schefuß, E: Exceptionally opposing trends in carbon and hydrogen isotope fractionations of chemoautotrophic sulfur-oxidizing bacteria at shallow hydrothermal vents (Poster); Molecular Origins of Life 2024, Munich, Germany.
  • Maak JM, Birgel D, Reitner J, Gischler E, Dullo W-C, Foster W, Peckmann J: Molecular fossil inventory in microbial carbonates and sponges of the deep fore reef of Mayotte and Mohéli, Comoro islands (Plenary Talk); International Meeting on Organic Geochemistry (IMOG 2023), Montpellier, France. 10.3997/2214-4609.202333101
  • Maak JM, Elvert E, Solveig SI, Lin Y-S, Schefuß E: Evaluating the incorporation of aged carbon into the marine carbon cycle at shallow hydrothermal systems (Poster); International Meeting on Organic Geochemistry (IMOG 2023), Montpellier, France. 10.3997/2214-4609.202333103
  • Maak JM, Birgel D, Reitner J, Gischler E, Dullo W-C, Peckmann J: Molecular fossil inventory in microbial carbonates and sponges of the deep fore reef of Mayotte and Mohéli (Talk);D-A-CH Geobiology Symposium 2022, ETH Zürich, Switzerland.

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