Jan Fietzke (PhD)
![[Translate to English:] Dr. rer. nat. Jan Fietzke](/fileadmin/personal/fb4/muhs/jfietzke/Jan-Fietzke.jpg)
Topic 3 and 6
RD 2: Marine Biogeochemistry
RU Marine Geosystems
RD 4: Dynamics of the Ocean Floor
RU Magmatic and hydrothermal Systems
office: 8E/105, phone (office): +49 431 600 2106
lab: 8A/004, phone (lab): +49 431 600 2103
e-mail: jfietzke(at)geomar.de
Contact
Address: GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstraße 1-3, 24148 Kiel, Germany
Research Focus
instrumental analytics (in-situ isotope- and elemental analytics, laser ablation, ICP-MS), biomineralisation, chemical proxies in marine carbonates
Projects (PI) and Collaborations
Projects (PI)
LASSO: 2006-2008
BIOACID I: 2009-2012
BIOACID II: 2012-2015
Projects (collaborations)
CALMARO: 2008-2012
TRION: 2010-2016
BASE-LiNE Earth: 2015-2018
Vita
1991-1997 study of Physics (diploma) TU Dresden & Uni Heidelberg
1997-2000 PhD study CAU Kiel & Uni Heidelberg, PhD Physics Uni Heidelberg
2000-2005 Postdoc CAU Kiel, IfM-GEOMAR Kiel
since 2005 staff scientist GEOMAR Kiel; lab manager MC-ICP-MS (AXIOM lab)
since 2010 head of LA-ICP-MS lab GEOMAR Kiel
Science Engagement
since 2025 Joint-Editor-in-Chief at "Geostandards and Geoanalytical Research", Wiley
Link to Journal
Patents (Google Patents)
Granted Patents:
- EP3401944: Method and device for detecting electrically charged
particles of a particle stream and system for analysis of ionized
components of an analyte (https://patents.google.com/patent/EP3401944B1/en)
Pending Patents:
- US20240420941/EP4481792: Temperature control plasma source analyzer
arrangement and temperature-controlled gas flow-plasma source analysis
method (https://patents.google.com/patent/US20240420941A1/en)
- US20250157807/EP4542621: Ablation device
(https://patents.google.com/patent/US20250157807A1/en)
Publications (Google Scholar und ResearchGate)
Publications (Highlights)
Fietzke, J. and M. Wall (2022), Distinct fine-scale variations in calcification control revealed by high-resolution 2D boron laser images in the cold-water coral Lophelia pertusa. Science Advances, 8 (11). eabj4172. doi: 10.1126/sciadv.abj4172
Fietzke, J. and M. Frische (2016), Experimental evaluation of elemental behavior during LA-ICP-MS: influences of plasma conditions and limits of plasma robustness, J. Anal. At. Spectrom. 31, 234-244, doi: 10.1039/c5ja00253b
Fietzke, J., F. Ragazzola, J. Halfar, H. Dietze, L.C. Foster, T.H. Hansteen, A. Eisenhauer, R.S. Steneck (2015), Century-scale trends and seasonality in pH and temperature for shallow zones of the Bering Sea, Proc. Natl. Acad. Sci. USA 112 (10), 2960-2965, doi: 10.1073/pnas.1419216112
Fietzke J., V. Liebetrau, D. Günther, K. Gürs, K. Hametner, K. Zumholz, T.H. Hansteen & A. Eisenhauer (2008), An alternative data acquisition and evaluation strategy for improved isotope ratio precision using LA-MC-ICP-MS applied for stable and radiogenic strontium isotopes in carbonates, J. Anal. At. Spectrom., 23, 955-961, doi:10.1039/b717706b
Fietzke, J., and A. Eisenhauer (2006), Determination of temperature-dependent stable strontium isotope (88Sr/86Sr) fractionation via bracketing standard MC-ICP-MS, Geochem. Geophys. Geosyst. 7, Q08009, doi:10.1029/2006GC001243
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