© Dr. Anna Kral
Dr. Anna Kral
Postdoc and research associate
Postdoc and research associate
Affiliations
- Department of Geochemistry-Petrology
- Research Group: Geochemistry
Research topics
- Experimental and analytical geochemistry
- Biomineralization
- Processes in early bone diagenesis
- Bone geochemistry and mineralogy
- Oxygen isotopes in bone phosphate
- Bone - fluid interactions
- Raman Spectroscopy (in situ fluid-cell, Raman imaging) Micro-computed tomography (3D reconstructions, quantitative 2D/3D analysis)
Member of the DFG research unit FOR 2685: “The Limits of the Fossil Record: Analytical and Experimental Approaches to Fossilization”
Current research projects:
(1) In operando analysis of bone-fluid interactions under early diagenetic conditions by in situ time- and space-resolved fluid-cell Raman spectroscopy
(2) In operando analysis of the (diffusive) uptake of neodymium in bone by laser-induced photoluminescence Raman spectroscopy
(3) Long-term alteration study of in vivo stable isotope ratios (D, B, O, Mg, Ca, Zn, Sr, U) in bone
(4) Testing the stability of the chemical, isotopic, and mineralogical composition of diagenetically overprinted bone
Selected publications
- Kral AG, Lagos M, Guagliardo P, Tütken T, Geisler T (2022) Rapid alteration of cortical bone in fresh- and seawater solutions visualized and quantified from the millimeter down to the atomic scale. Chemical Geology 602:121060. DOI: 10.1016/j.chemgeo.2022.121060.
- Weber K, Weber M, Menneken M, Kral AG, Mertz-Kraus R, Geisler T, Vogl J, Tütken T (2021) Diagenetic stability of non-traditional stable isotope systems (Ca, Sr, Mg, Zn) in teeth – an in-vitro alteration experiment of biogenic apatite in isotopically enriched tracer solution. Chemical Geology 572:120196. DOI: 10.1016/j.chemgeo.2021.120196.
- Kral AG, Ziegler A, Tütken T, Geisler T (2021) Experimental aqueous alteration of cortical bone microarchitecture analysed by quantitative micro-computed tomography. Frontiers in Earth Science 9:609496. DOI: 10.3389/feart.2021.609496.
- Gäb F, Ballhaus C, Stinnesbeck E, Kral AG, Janssen K, Bierbaum G (2020) Experimental taphonomy of fish - role of elevated pressure, salinity and pH. Scientific Reports 10:7839. DOI: 10.1038/s41598-020-64651-8.
- López-Doncel R, Wedekind W, Leiser T, Molina-Maldonado S, Velasco-Sánchez A, Dohrmann R, Kral A, Wittenborn A, Aguillón-Robles A, Siegesmund S (2016). Salt bursting tests on volcanic tuff rocks from Mexico. Environmental Earth Sciences 75:1-22. DOI: 10.1007/s12665-015-4770-3.
© Dr. Anna Kral
Dr. Anna Kral
Postdoc and research associate
Postdoc and research associate
2.112
Meckenheimer Allee 169
53115 Bonn