Charlotte Kleint


AG Petrology of the Ocean Crust

Room 5320

Department of Geosciences
University of Bremen
Klagenfurter Straße 2-4
28359 Bremen
Germany

Phone: +49 421 218 65405
Fax: +49 421 218 65429
Email: ckleint@marum.de

ORCID: 0000-0001-8594-3304
Link to Google Scholar
Charlotte Kleint


Research Interests


  • Geochemical fluid composition of shallow and deep-sea hydrothermal vent systems
  • Stabilization and transport of hydrothermally derived metals in the water column
  • Trace metal fluxes in the ocean
  • Organic and inorganic complexation of trace metals
  • Trace metal analytics
  • Research coordination



Cur­riculum Vitae

  • since 2021: Senior Scientist (tenured), MARUM, Uni­versity of Bre­men
  • 2021/2022: 1 year parental leave
  • 2016-2021: PostDoc, Jac­obs Uni­versity Bre­men and MARUM, Uni­versity of Bre­men
  • 2014: Research Stay, Uni­versity of Ot­ago, New Zea­l­and (3 months)
  • 2013-2016: PhD student, Jacobs University Bremen
  • 2012: Trainee, Jacobs University Bremen
  • 2009-2011: MSc Marine Geosciences, Uni­ver­si­ty of Bre­men
  • 2006-2009: BSc Geosciences, Leibniz University of Hanover



Expeditions

Re­search Cruises

  • 2023: M192/2 “BRIDGEHELL“ Piraeus (Greece) – Limassol (Cyprus)
    "Bridging hydrothermal sites along the Hellenic Arc off Milos from shallow to deep”
  • 2018: SO263, “TONGARIFT“ Suva (Fiji) - Suva (Fiji)
    "Magmatic evolution of island arcs and backarc crust and its significance for hydrothermalism in the northern Tonga arc”
  • 2016/2017: SO253, “HYDROTHERMADEC“ Nouméa (New Caledonia) - Auckland (New Zealand)
    “Geochemical and ecological effects of hydrothermal processes in intraoceanic volcanic arcs, using the Kermadec Arc (SW Pacific) as an example”
  • 2015: SO240, “FLUM“ Manzanillo (Mexico) - Manzanillo (Mexico)
    ”Low-thermal fluid circulation between seamounts and hydrothermal vents: heat flow system, influence on biogeochemical processes, and on the occurrence and composition of manganese nodules in the equatorial East Pacific”
  • 2013: SO229, “COVOLVE“ Townsville (Australia) - Nouméa (New Caledonia)
    “Volcanism, hydrothermal activity, and biology in the Coriolis Troughs, Vanuatu, New Hebrides Island Arc”

Sampling Cam­paigns

  • 2013:Dominica, Lesser Antilles, Caribbean, Sampling of shallow marine hydrothermal vents
  • 2012: Milos, Greece, Sampling of shallow marine hydrothermal vents



Pub­lic­a­tions, Con­fer­ences and Work­shops


Articles (peer-reviewed)

  • Janssen D, Gilliard D, Rickli J, Nasemann P, Koschinsky A, Hassler CS, Bowie AR, Ellwood MJ, Kleint C, Jaccard SL (2023): Chromium stable isotope distributions in the southwest Pacific Ocean and constraints on hydrothermal input from the Kermadec Arc. Geochimica et Cosmochimica Acta 342, 31-44.
    | doi:10.1016/j.gca.2022.12.010 |
  • Hansen CT, Kleint C, Böhnke S, Klose L, Adam‐Beyer N, Sass K, Zitoun R, Sander SG, Indenbirken D, Dittmar T, Koschinsky A, Perner M (2022): Impact of high Fe‐concentrations on microbial community structure and dissolved organics in hydrothermal plumes: an experimental study. Scientific Reports 12:20723.
    | doi:10.1038/s41598-022-25320-0 |
  • Klose L, Kleint C, Bach W, Diehl A, Wilckens F, Peters C, Strauss H, Haase K, Koschinsky A (2022): Hydrothermal activity and associated subsurface processes at Niuatahi rear-arc volcano, North East Lau Basin, SW Pacific: Implications from trace elements and stable isotope systematics in vent fluids. Geochimica et Cosmochimica Acta 332, 103-123.
    | doi:10.1016/j.gca.2022.06.023 |
  • Kleint C, Zitoun R, Neuholz R, Walter M, Schnetger B, Klose L, Chiswell SM, Middag R, Laan P, Sander SG, Koschinsky A (2022): Tra­ce me­tal dy­na­mics in shal­low hydro­ther­mal plu­mes at the Ker­ma­dec arc. Frontiers in Marine Science 8, 782734.
    | doi:10.3389/fmars.2021.782734 |
  • Dede B, Hansen CT, Neuholz R, Schnetger B, Kleint C, Walke S, Bach W, Amann R, Meyerdierks A (2022): Niche differentiation of sulfur-oxidizing bacteria (SUP05) in submarine hydrothermal plumes. ISME Journal.
    | doi:10.1038/s41396-022-01195-x |
  • Klose L, Keith M, Hafermaas D, Kleint C, Bach W, Diehl A, Wilckens F, Peters C, Strauss H, Klemd R, van Geldern R, Haase KM, Koschinsky A (2021): Trace element and isotope systematics in vent fluids and sulphides from Maka Volcano, north eastern Lau Spreading Centre: Insights into three-component fluid mixing. Front. Earth Sci. 9:776925.
    | doi:10.3389/feart.2021.776925 |
  • Peters C, Strauss H, Haase K, Bach W, de Ronde CEJ, Kleint C, Stucker V (2021): SO2 disproportionation impacting hydrothermal sulfur cycling: Insights from multiple sulfur isotopes for hydrothermal fluids from the Tonga-Kermadec intraoceanic arc and the NE Lau Basin. Chemical Geology 586, 120586.
    | doi:10.1016/j.chemgeo.2021.120586 |
  • Neuholz R, Kleint C, Schnetger B, Koschinsky A, Laan P, Middag R, Sander SG, Thal J, Türke A, Walter M, Zitoun R, Brumsack H-J (2020): Submarine Hydrothermal Discharge and Fluxes of Dissolved Fe and Mn, and He Isotopes at Brothers Volcano Based on Radium Isotopes. Minerals 10(11), 969 - Special Issue: Advances in Integrated Mineralogical, Geochemical, Isotopic and Numerical Modeling Study of Magmatic-Hydrothermal Systems.
    | doi: 10.3390/min101109694 |
  • Neuholz R, Schnetger B, Kleint C, Koschinsky A, Lettmann K, Sander SG, Türke A, Walter M, Zitoun R, Brumsack H-J (2020): Near-field hydrothermal plume dynamics at Brothers Volcano (Kermadec Arc): A short-lived radium isotope study. Chemical Geology 533.
    | doi: 10.1016/j.chemgeo.2019.119379 |
  • Kleint C, Bach W, Diehl A, Fröhberg N, Garbe-Schönberg D, Hartmann JF, de Ronde CEJ, Sander SG, Strauss H, Stucker V, Thal J, Zitoun R, Koschinsky A (2019): Geochemical characterization of highly diverse hydrothermal fluids from volcanic vent systems of the Kermadec intraoceanic arc. Chemical Geology 528.
    | doi: 10.1016/j.chemgeo.2019.119289 |
  • Böhnke S, Sass K, Gonnella G, Diehl A, Kleint C, Bach W, Zitoun R, Koschinsky A, Indenbirken D, Sander SG, Kurtz S, Perner M (2019): Parameters governing the community structure and element turnover in Kermadec volcanic ash and hydrothermal fluids as monitored by inorganic electron donor consumption, autotrophic CO2 fixation and 16S tags of the transcriptome in incubation experiments. Frontiers in Microbiology 10:2296.
    | doi: 10.3389/fmicb.2019.02296 |
  • Kleint C, Pichler T, Koschinsky A (2017) Geochemical characteristics, speciation and size-fractionation of iron (Fe) in two marine shallow-water hydrothermal systems, Dominica, Lesser Antilles. Chemical Geology 454, 44-53.
    | doi: 10.1016/j.chemgeo.2017.02.02 |
  • Kleint C, Hawkes JA, Sander SG, Koschinsky A (2016): Voltammetric Investigation of Hydrothermal Iron Speciation. Frontiers in Marine Science (Marine Biogeochemistry) 3:75.
    | doi: 10.3389/fmars.2016.00075 |
  • Kleint C, Kuzmanovski S, Powell Z, Bühring SI, Sander SG, Koschinsky A (2015): Organic Cu-complexation at the shallow marine hydrothermal vent fields off the coast of Milos (Greece), Dominica (Lesser Antilles) and the Bay of Plenty (New Zealand). Marine Chemistry 173, 244-252.
    | doi: 10.1016/j.marchem.2014.10.012 |
  • Mohwinkel D, Kleint C, Koschinsky A (2014): Phase associations and potential selective extraction methods for selected high-tech metals from ferromanganese nodules and crusts with siderophores. Applied Geochemistry 43, 13-21.
    | doi: 10.1016/j.apgeochem.2014.01.010 |
  • Koschinsky A, Kleint C (2014): Manganknollen – Rohstoff für Zukunftstechnologien. Beitrag in Geowissenschaftliche Mitteilungen (GMIT) 57, 21-25.

Monographs

  • PhD Thesis (2016): "The spe­cia­ti­on and or­ga­nic com­plexa­ti­on of iron (Fe) and cop­per (Cu) in dif­fe­rent ma­ri­ne hydro­ther­mal vent sys­tems", Jacobs University Bremen. Supervisors: Andrea Koschinsky (Jacobs University, Bremen), Michael Bau (Jacobs University, Bremen), Solveig Bühring (MARUM) und Sylvia Sander (University of Otago, New Zealand).
  • Master Thesis (2011): "Pha­se as­so­cia­ti­ons of some rare va­luable me­tals (Pt, Zr, Hf, Nb, Ta, Mo, W, Th and REY) in fer­ro­man­ga­ne­se no­du­les and crusts and po­ten­ti­al me­thods for selec­tive extrac­tion”, University of Bremen. Supervisors: Andrea Koschinsky (Jacobs University) , Wolfgang Bach (University of Bremen).
  • Bachelor Thesis (2009): "The Geo­che­mi­cal and Mi­ne­ra­lo­gi­cal Cha­rac­te­riza­t­i­on of Man­ga­ne­se No­du­les from the Ger­man Ex­plo­ra­ti­on Claim”, Universität of Hanover. Supervisors: Francois Holtz (University of Hanover), Ulrich Schwarz-Schampera (BGR Hanover).

Conferences

  • Kleint C, Bach W, Sander SG, Zitoun R, Middag R, Laan P, Koschinsky A (2019): Hydrothermal fluxes of trace metals (such as Zn and Fe) into surface waters along the the Kermadec Intraoceanic Arc. Goldschmidt Conference 2019, Barcelona, Spain (Talk).
  • Kleint C, Bach W, Diehl A, Fröhberg N, Garbe-Schönberg D, Hartmann JF, de Ronde C, Sander SG, Strauss H, Stucker V, Zitoun R, Koschinsky A (2018): Heterogeneous Geochemical Composition of Hydrothermal Fluids from the Kermadec Intraoceanic Arc with Potential Implications for Ocean Biogeochemistry. Gordon Research Conference on Ocean Biogeochemistry (GRC) 2018, Hong Kong, China (Selected/invited talk and poster).
  • Kleint C, Bach W, Diehl A, Fröhberg N, Garbe-Schönberg D, Hartmann JF, de Ronde C, Sander SG, Strauss H, Stucker V, Zitoun R, Koschinsky A: Heterogeneous Geochemical Composition of Hydrothermal Fluids from the Kermadec Intraoceanic Arc with Potential Implications for Ocean Biogeochemistry. Gordon Research Seminar on Ocean Biogeochemistry (GRS) 2018, Hong Kong, China (Talk & Poster).
  • Kleint C, Fröhberg N, Zitoun R, Sander SG, Strauss H, Koschinsky A (2017): Diversity of hydrothermal fluids from four vent sites at the Kermadec Island Arc and its relevance for elemental fluxes. Goldschmidt Conference 2017, Le Palais des Congrès de Paris, Paris, France (Talk).
  • Kleint C, Sander SG, Koschinsky A (2016): Dissolved Fe and Fe binding ligand concentrations at the hydrothermal vent fields in the Coriolis Troughs, New Hebrides Island Arc. Ocean Sciences Meeting (OSM) 2016, Ernest N. Morial Convention Center New Orleans, Louisiana, United States (Poster).
  • Sander SG, Powell Z, Koschinsky A, Kuzmanovski S, Kleint C (2014): Stabilization of dissolved trace metals at hydrothermal vent sites: Impact on their marine biogeochemical cycles. European Geosciences Union General Assembly 2014, Vienna Austria.
  • Kleint C, Kraemer D, Koschinsky A (2014): Phase associations and selective extraction of high-technology metals from ferromanganese nodules and crusts with the siderophore Desferrioxamine B. GeoFrankfurt 2014, Goethe University Frankfurt, Frankfurt, Germany (Talk).
  • Kleint C, Koschinsky A (2014): Copper-ligand complexation at shallow water hydrothermal vents off the coast of Milos and Dominica. Ocean Sciences Meeting (OSM) 2014, Convention Center Honolulu, Hawaii, United States (Poster).
  • Kleint C, Koschinsky A, Powell Z (2013): Geo-Bio interactions in shallow water hydrothermal vents and their impact on trace metals. ASLO 2013 Aquatic Sciences Meeting, Ernest N. Morial Convention Center New Orleans, Louisiana, United States (Talk).
  • Kleint C, Koschinsky A (2012): High-tech metals in marine ferromanganese nodules and crusts: concentrations, phase associations and potential methods of selective extraction. GeoHannover 2012, Leibniz University Hanover, Hanover; Germany (Talk).
  • Kleint C, Koschinsky A, Mohwinkel D (2012): High-tech metals in marine ferromanganese nodules and crusts: contents and possibilities of selective extraction. European Mineralogical Conference (EMC) 2012, Goethe University Frankfurt, Frankfurt, Germany (Talk).
  • Koschinsky A, Kleint C, Mohwinkel D, Halbach P, Kuhn T (2011): Extraction of valuable trace metals from ferromanganese nodules and crusts with different chemical leaching agents. Underwater Mining Institute (UMI) 2011, Hilo Hawaiian Hotel, Hawaii, United States.

Workshops

  • GIF Young Scientists Meeting (German-Israeli Foundation for Scientific Research and Development) - "Going Down Into the Abyss: Ocean-Floor Processes, Deep Life, and Climate Archives", MARUM, Bremen, October 2019 (Invited talk).
  • „Initiative: future-orientated deep-sea mining”, Jacobs University and MARUM, Bremen, 2014, 2015 and 2016 (Coordination and talk).
  • „Organic Ligands - A Key Control on Trace Metal Biogeochemistry in the Oceans” SCOR Working Group 139, Sibenik, Croatia, April 2015.
  • „Research in Shallow Marine and Fresh Water Systems” University Bremen, February 2013 (Talk).
  • „Voltammetry and Geotraces” COST Action Group ES801 „The Ocean Chemistry of Bioactive Trace Elements and Paleoclimate Proxies”, Sibenik, Croatia, October 2012 (Talk).

Reviewer for

  • German Reserach Foundation (DFG)
  • Scientific Reports
  • Economic Geology
  • Marine Chemistry
  • Geochemistry, Geophysics, Geosystems (G-Cubed)
  • Environmental Chemistry
  • Geofluids


Teaching

  • Marine Resources in Space and Time (MSc Marine Geosciences, winter semester 2022/2023)
  • Exercises in General Chemistry for Geoscientists (in German, BSc Geosciences, winter semester 2022/2023)
  • Applied Geochemistry, Environmental Geochemistry, Introduction into EES, Geochemistry of Aqueous Systems (BSc Earth and Environmental Sciences (EES), Jacobs University Bremen, 2019-2021)