GEOMAR  Hölz, Sebastian

Dr. rer. nat. Sebastian Hölz

Scientist (Topic 8)
RD 4: Dynamics of the Ocean Floor
RU: Marine Geodynamics

Office:
Room: 8A-202
Phone: +49 431 600 2519
E-Mail: shoelz(at)geomar.de 

Address:
GEOMAR Helmholtz Centre for Ocean Research Kiel
Wischhofstr. 1-3
24148 Kiel

 

Research Focus

  • Controlled source electromagnetics: experimental design & implementation, construction of equipment, data processing and interpretation
  • Investigations of the subseafloor with geophysical methods with special focus on electromagnetic methods
  • Exploration for inactive massive sulfide deposits
  • Exploration for Offshore Groundwater

Projects

  • 2024 – 2027, international = HYDROMOX – Hydrothermal controls on caldera explosivity. International collaboration with partners from UK (NOC, University of Southampton, …), USA, Germany
  • 2021 – 2026, international = SOURCE Project – Offshore Groundwater Resources in a Changing Marine Environment: Continental Shelf Surrounding PEI. International project for offshore groundwater research with 19 partners from Canada, USA, Germany
  • 2024 – 2027, international = PERBAS Project – Permanent sequestration of gigatons of CO2 in continental margin basalt deposits. Joint project with partners from UK, Norway, USA, India and Germany
  • 2023 – 2026, international = ULTRA Project – Investigations of seafloor massive sulfides in ultramafic environments. International collaboration with partners from UK (NOC, University of Southampton, …), USA, Germany, …
  • 2022 – 2024, national = "High CO2 – metabolic responses and bioeconomic opportunities" – Topic Cluster 2 project of Helmholtz Innovation Fond, a joint project between FZJ, GFZ and GEOMAR.
  • 2019, international = CSEM project as part of INSIGHT – Imaging large seismogenic and tsunamigenic structures of the Gulf of Cadiz with ultra-high resolution technologies. Client: CSIC (Consejo Superior de Investigaciones Científicas, Spain)
  • 2018 – 2021, international = Gitaro.JIM – Geophysical Interpretation with target-oriented Joint Inversion Modules (03SX456C), funded as part of the MarTERA ERA-NET Cofunding Scheme.
  • 2014, international = Reconnaissance géophysique du potentiel géothermique de la Zone de Faill de Hockai (dans la région de Malmedy)”. Numéro de convention: 1540026, Client: Government of Wallonia, Belgium
  • 2011, industry = Design study for electromagnetic instrumentation for SMS exploration (AllSeas).

Vita

  • Since 2014 Senior Scientist, GEOMAR | Helmholtz Centre for Ocean Research Kiel
  • 2008-2014 PostDoc, IFM-GEOMAR, now GEOMAR | Helmholtz Centre for Ocean Research Kiel 
  • 2007  PhD (Dr. rer. nat.) TU Berlin, „Geophysical and Geoscientific Investigations in the Ejina Basin, Inner Mongolia, NW China with Focus on Processing of TEM-Data in the Wavelet Domain and on 2D Modeling“, Supervisors: Prof. Burkhardt (TU Berlin); Prof. Weidelt (TU Braunschweig)
  • 2001-2007 Scientist at TU Berlin
  • 2001 Diploma (Dipl.Geophys.) in Geophysics, FU Berlin, Supervisors: Prof. Haak, Dr. Brasse

Publications (OceanRep)

Oops, an error occurred! Request: 4f73897ee7195

Expeditions

  • MSM140 (PERBAS), Norwegian margin, FS MS Merian, 4.9. – 9.10.2025, co-PI, head of EM group.
  • DY190 (HYDROMOX), Santorini, RV Discovery, 1. – 28.3.2025, head of EM group.
  • JC254 (ULTRA), Semyenov Hydrothermal Field, RV James Cook, 26.10. – 29.11.2023, head of EM group.
  • AL596 (AUV@Grimsey), Grimsey Vent Field, FS Alkor, 31.5 – 20.6.2023, chief scientist.
  • MSM103, SOURCE, Gulf of St. Lawrence, FS MS Merian, 12.9 – 15.11.2021, chief scientist
  • INSIGHT (leg 2), Gulf of Cadiz, RV S. de Gamboa, 30.9. - 20.10.2019, head of EM group
  • POS535 (Loki2Grimsey), Northern Mid-Atlantic Ridge, RV Poseidon, 9.6. – 3.7.19, chief scientist
  • POS524 (GrimseyEM), Northern Iceland, RV Poseidon, 7.6. – 26.6.2018, chief scientist
  • POS509 (ElectroPal 2), Tyrrhenian Sea, RV Poseidon, 15.2. – 3.3.2017, chief scientist
  • JC138 (Blue Mining), Mid Atlantic Ridge, RV James Cook, 8.7. – 24.8.2016, head of EM group
  • POS483 (ElectroPal), Tyrrhenian Sea, RV Poseidon, 28.3. – 15.4.2015
  • MSM35 (SUGAR Site CSEM), Black Sea, MS Merian, 20.1. - 5.2.2014, head of EM group
  • SO227 (TaiFlux), offshore Taiwan, RV Sonne, 1.4. - 1.5.2013.
  • M87/2 (COSY), Vøring Plateau (Norway), RV Meteor, 05.05.-27.05.2012.
  • SO214 (NEMESYS), Hikurangi Margin (New Zealand), RV Sonne, 9.3. - 22.4.2011
  • MSM14/3, Eratosthenes Seamount / Cyprus Arc, MS Merian, 12.3. - 5.4.2010, head of EM group
  • Alboran Sea, MT survey, 30.7. - 5.8.2009, head of EM team
  • 64PE298, West Nile Delta Project Cruise – WND 3, 7.11. - 25.11.2008

Workshops

  • Organizer of the 27th national EMTF meeting (Schmucker-Weidelt Kolloquium für Elektromagnetische Tiefenforschung), 25. - 29.9.2017, Breklum, Germany.
  • Member of local organizing committee for 22nd EM Induction Workshop, Weimar, Germany 24 – 30.8. 2014.
  • Organizer of workshop "Marine MT and EM", 20. - 22.8.2014, Kiel, Germany (tutorial workshop before 22nd EMIW).

to the top