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Dr. Charlotte Kleint

Research Staff

Group: 

Petrology of the Ocean Crust

Phone: 

+49 421 200-3257

Fax:

+49 421 200-3229

Email:

Charlotte Kleint

*currently on parental leave*

 

Research Interests

Cur­riculum Vitae

Research Cruises and Sampling Campaigns

Publications, Conferences & Workshops

Reviewer for

Teaching

 

 

Research Interests

  • Geochemical fluid composition of shallow and deep-sea hydrothermal vent systems
  • Stabilization and transport of hydrothermally derived metals in the water column (e.g. iron, manganese, zinc)
  • Trace metal fluxes in the ocean
  • Organic and inorganic complexation of trace metals
  • Trace metal analytics (ICP-OES, ICP-MS, Voltametry)
  • Research coordination (cruises, proposals, workshops etc.)

 

Cur­riculum Vitae

 

 since 04/2021

Senior Scientist at MARUM, Universitity of Bremen

Transport and speciation of hydrothermally derived metals in the water column

09/​2016 -

03/2021

PostDoc at Jacobs University Bremen and MARUM, Universitity of Bremen

Transport and speciation of hydrothermally derived metals in the water column

01/2013- 08/2016 PhD student Jacobs University Bremen

Title: The speciation and organic complexation of iron (Fe) and copper (Cu) in different marine hydrothermal vent systems”

Supervisors: Prof. Dr. Andrea Koschinsky (Jacobs University), Prof. Dr. Michael Bau (Jacobs University), Dr. Solveig Bühring (MARUM) und Prof. Dr. Sylvia Sander (University of Otago, NZ)

12/2011- 

12/2012

Trainee, Jacobs University Bremen

09/2009-    11/2011 MSc Marine Geosciences, University of Bremen

Title: 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”
Supervisors: Prof. Dr. Andrea Koschinsky (Jacobs University) und Prof. Dr. Wolfgang Bach (Universität Bremen)
08/2006- 08/2009

BSc Geoscience, Leibniz University of Hannover

Title:"The Geochemical and Mineralogical Characterization of Manganese Nodules from the German Exploration Claim"

Supervisors: Prof. Dr. Francois Holtz (Universität Hannover) und Dr. Ulrich Schwarz-Schampera (BGR Hannover)

 

Research Cruises and Sampling Campaigns

06/2018

RV SONNE SO263 “TONGARIFT"   Suva (Fiji) - Suva (Fiji)

Chief Scientist: K. Haase (GZN Erlangen)

"Magmatic evolution of island arcs and backarc crust and implications for hydrothermal venting: the rifted North Tonga Arc”

Task: Leader of the fluid chemistry team; first geochemical analysis of sampled fluids (ROV QUEST and CTD) on board as well as sample preparation for futher work in the home labs.

12/2016–        01/2017

RV SONNE SO253 „HYDROTHERMADEC“   Nouméa (New Caledonia) - Auckland (New Zealand)

Chief Scientist: A. Koschinsky (Jacobs University Bremen)

„Geochemical and ecological impacts of hydrothermal processes at intraoceanic volcanic island arcs using the example of the Kermadec Island Arc (SW Pacific)”

Task: Cruise-Coordination; first geochemical analysis of sampled fluids (ROV QUEST and CTD) on board as well as sample preparation for futher work in the home labs.

05/2015–      06/2015

RV SONNE SO240 „FLUM“   Manzanillo (Mexico) - Manzanillo (Mexico)

Chief Scientist: T. Kuhn (BGR Hannover)

„Occurrence of fluid circulation at seamounts, impact on biogeochemical processes, and its potential influence on the occurrence and composition of manganese nodules"

Task: Porewater and sediment geochemistry

06/2013–      07/2013

RV SONNE SO229 „COVOLVE“  Townsville (Australia) - Nouméa (New Caledonia)

Chief Scientist: K. Haase (GZN Erlangen)

„Volcanism, hydrothermal activity and vent biology in the Coriolis Troughs, New Hebrides Island Arc”

Task: First geochemical analysis of sampled fluids (ROV KIEL6000 and CTD) on board as well as sample preparation for futher work in the home labs.

10/2014– 12/2014

Dunedin, New Zealand

(Research Stay at the University of Otago, 3 months)

 Department of Chemistry, University of Otago, Prof. Dr. Sylvia Sander

04/2013                        

Dominica, Lesser Antilles, Caribbean

Sampling of shallow marine hydrothermal vents at Dominica (Champagne Hot Springs and Soufriere) lead by Dr. Solveig Bühring (Marum)

05/2012               

Milos, Greece

Sampling of shallow marine hydrothermal vents at Milos (Paleochori Bay and Spathi Bay) lead by Dr. Solveig Bühring (Marum)

Publications, Conferences & Workshops

Publikations:

  • Kleint, C., Zitoun, R., Neuholz, R., Walter, M., Schnetger, B., Klose, L., Chiswell, S.M., Middag, R., Laan, P., Sander, S.G. and Koschinsky, A. (in revision): Trace metal dynamics of Mn, Fe, Co, Ni, Cu, Zn, Cd, La and Pb in hydrothermal plumes of the Brothers and Macauley volcanic systems at the Kermadec arc. Frontiers in Marine Science.
  • Klose, L., Kleint, C., Bach, W., Diehl, A., Wilckens, F., Peters, C., Strauss, H., Haase, K. and Koschinsky, A. (under review): 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.
  • Dede, B., Hansen, C.T., Neuholz, R., Schnetger, B., Kleint, C., Walker, S., Bach, W., Amann, R. and Meyerdierks, A.(in revision): Niche differentiation of sulfur-oxidizing bacteria (SUP05) in submarine hydrothermal plumes. The ISME Journal.
  • Klose, L., Keith, M., Hafermaas, D., Kleint, C., Bach, W., Diehl, A., Wilckens, F., Peters, C., Strauss, H., Klemd, R., van Geldern, R., Haase, K. and Koschinksy, A. (accepted): Trace element and isotope systematics in vent fluids and sulphides from Maka volcano, North Eastern Lau Spreading Centre: Insights into three-component fluid mixing. Frontiers in Earth Science.
  • Peters, C., Strauss, K., Haase, K., Bach, W., de Ronde, C., Kleint, C., Stucker, V. and Diehl, A. (2021): 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. doi: 10.1016/j.chemgeo.2021.120586
  • Neuholz, R., Kleint, C., Schnetger, B., Koschinsky, A., Laan, P., Middag, R., Sander, S.G., Thal, J., Türke, A., Walter, M., Zitoun, R. and 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), doi: 10.3390/min10110969
  • Neuholz, R., Schnetger, B., Kleint, C., Koschinsky, A., Lettmann, K., Sander, S.G., Türke, A., Walter, M., Zitoun, R. and 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, J.F., de Ronde, C.E.J., Sander, S.G., Strauss, H., Stucker, V., Thal, J., Zitoun, R. and 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, S.G.,  Kurtz, S. and 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. doi:10.3389/fmicb.2019.02296
  • Kleint C., Pichler T. and 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. pp 44-53.doi: 10.1016/j.chemgeo.2017.02.02
  • Kleint C., Hawkes J. A., Sander S. G. and Koschinsky A. (2016) Voltammetric Investigation of Hydrothermal Iron Speciation. Frontiers in Marine Science (Marine Biogeochemistry) 3:75 Open Access, doi: 10.3389/fmars.2016.00075
  • Kleint C., Kuzmanovski S., Powell Z., Bühring S. I., Sander S. G. and 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. pp 244-252. doi: 10.1016/j.marchem.2014.10.012
  • Mohwinkel D., Kleint C. and 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. pp 13-21. doi: 10.1016/j.apgeochem.2014.01.010
  • Koschinsky A. und Kleint C. (2014): Manganknollen – Rohstoff für Zukunftstechnologien. Beitrag in Geowissenschaftliche Mitteilungen (GMIT), Heft Nr. 57, Seiten 21-25.

Conferences:

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

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" (invited Talk), MARUM, Bremen, October 2019
  • „Initiative: future-orientated deep-sea mining” (Coordination and Talk), Jacobs University und MARUM, Bremen, Germany, 2014, 2015 and 2016.
  • „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” (Talk) University of Bremen, Germany, February 2013.
  • „Voltammetry and Geotraces” COST Action Group ES801 „The Ocean Chemistry of Bioactive Trace Elements and Paleoclimate Proxies”, (Talk) Sibenik, Croatia, October 2012.

 

Reviewer for

  • Scientific Reports
  • Marine Chemistry
  • G-cubed
  • Environmental Chemistry
  • Geofluids

 

Teaching (Jacobs University)

(Bachelor Program Earth & Environmental Sciences, EES)

  • Introduction into Earth and Environmental Sciences
  • Applied Geochemistry
  • Geochemistry of Aqueous Systems
  • Current Topics in Resource and Environmental Sciences