Teaching
- Baumaterial der Erde - Übungen
- Mikroskopie gesteinsbildender Minerale - Übungen
- Recherchemethoden und Präsentation wissenschaftlicher Daten
- Analytische Methoden I (SEM, TEM)
- Analytische Methoden II (SEM, TEM, SIMS)
- Angewandte Geowissenschaften
Research Foci
- Focused Ion Beam - Preparation (FIB)
- Transmission Electron Microscopy (TEM)
- High spatial resolution Mass Spectrometry (NanoSIMS, SIMS)
- Electron Backscatter Diffraction Analysis (EBSD)
- Combined FIB-TEM studies of terrestrial and extraterrestrial samples
- Astromineralogy, presolar Stardust
- Aberration-corrected UltraSTEM analyses on organic particles from meteorites and comets
- TEM analyses of matrix and fine-grained rims in carbonaceous chondrites
CV
Academic Education
- Ph. D., Max-Planck-Institute for Chemistry, Mainz
- Geology Studies, Degree: Diploma, University of Cologne
Positions
- Research Associate, Institute for Mineralogy, University of Münster
- Post-Doc, Institute for Mineralogy, University of Münster
- Post-Doc, Max-Planck-Institute for Chemistry, Mainz
- GGL Diamond Corporation, Junior Geologist for Diamond Exploration, Northwest Terrirtories, Canada
External Functions
Project
- SPP 1833 - Subproject: Iron-60 as a heat source for melting and differentiation of Earth-forming planetesimals and planetary embryos ( – )
Subproject in DFG-Joint Project Hosted outside the University of Münster: DFG - Priority Programme | Project Number: VO 1816/4-1
- SPP 1833 - Subproject: Iron-60 as a heat source for melting and differentiation of Earth-forming planetesimals and planetary embryos ( – )
Publications
Research Articles (Journals)
- . (). High-spatial resolution functional chemistry of nitrogen compounds in the observed UK meteorite fall Winchcombe. Nature Communications, 15(778). doi: 10.1038/s41467-024-45064-x.
- . (). Petrographic and chemical characterization and carbon and nitrogen isotopic compositions of cometary IDPs and their GEMS amorphous silicate matrix. Geochimica et Cosmochimica Acta, 378, 153–167. doi: 10.1016/j.gca.2024.06.013.
- . (). Field Investigations and Service Life Assessment of Geosynthetic Filters in Tidally Influenced Revetments in Cases of Ochre Clogging. Water, 16, 1840–1840. doi: 10.3390/w16131840.
Abstracts in Digital Collections (Conferences)
- . (). Transmission electron microscopy of the fine-grained matrix in the observed meteorite fall Winchcombe. In 4th European Mineralogical Conference, Dublin.
- . (). The functional chemistry of Ryugu organic matter investigated by high spatial resolution electron energy loss spectroscopy. In 4th European Mineralogical Conference, Dublin.
- . (). Functional chemistry of minimally altered organic matter in the meteorite Winchcombe probed by monochromated EELS. In European Microscopy Congress, Copenhagen.
Research Articles (Journals)
- . (). The Fe(Ni)–C–N‑phase diagram at 10 GPa—implications for nitrogen and carbon storage in the deep mantle. Contributions to Mineralogy and Petrology, 179(3), 1–14. doi: 10.1007/s00410-023-02084-y.
Abstracts in Digital Collections (Conferences)
- . (). Functional chemistry of extraterrestrial organic matter revealed by high spatial resolution synchrotron spectroscopy – electron microscopy techniques. In 8th Meeting of the International Union of Microbeam Analysis Societies, Banff.
Research Articles (Journals)
- . (). Iron-60 in the early Solar System revisited: insights from in situ isotope analysis of chondritic troilite. Astrophysical Journal, 929(1), 107–126. doi: 10.3847/1538-4357/ac5910.
- . (). The Early Solar System Abundance of Iron-60: New Constraints from Chondritic Silicates. Astrophysical Journal, 940(1), 95–116. doi: 10.3847/1538-4357/ac8b85.
Abstracts in Digital Collections (Conferences)
- (). Discovery of hydrated clasts with very high abundance of ferromagnesian 16O-rich olivine: Inner or outer solar system origin? In Meteoritical Society Meeting, Glasgow.
- (). Isotopic composition, morphologies, and functional chemistry of organic matter within the recent observed falls Tarda and Winchcombe. In Annual Meeting of the Meteoritical Society, Glasgow.
- (). Heterogeneity of Bulk Oxygen Isotopic Compositions in Anhydrous Interplanetary Dust Particles. In Annual Meeting of the Meteoritical Society, Glasgow.
- . (). First Discovery of Asimowite in an Antarctic Meteorite (Grosvenor Mountains 17151, L6, Ordinary Chondrite). In Lunar and Planetary Science Conference, Houston.
- . (). Further in situ data support low abundance of 60Fe in the early solar system. In Lunar and Planetary Science Conference, Houston.
Research Articles (Journals)
- . (). How do secondary iron enrichments form within basaltic eucrites? An experimental approach. Meteoritics and Planetary Science, 56(5), 911–928. doi: 10.1111/maps.13651.
- . (). Isotope Systematics of Presolar Silicate Grains: New Insights from Magnesium and Silicon. Astrophysical Journal, 913(1), 10–27. doi: 10.3847/1538-4357/abf041.
- . (). Natural Fe-bearing aluminous bridgmanite in the Katol L6 chondrite. Proceedings of the National Academy of Sciences of the United States of America, 118(40), e2108736118–. doi: 10.1073/pnas.2108736118.
- . (). Origins of olivine in Earth’s youngest kimberlite: Igwisi Hills volcanoes, Tanzania craton. Contributions to Mineralogy and Petrology, 176, 62.
Abstracts in Digital Collections (Conferences)
- (). Investigation of the silicon nitride inventory of carbonaceous chondrites. In Annual Meeting of the Meteoritical Society, Chicago.
- (). No in situ evidence for 60Fe decay in primitive meteorites. In Annual Meeting of the Meteoritical Society, Chicago.
- . (). In situ constraints on the 60Fe abundance in the early solar system. In Lunar and Planetary Science Conference, Houston.
Research Articles (Journals)
- . (). Mechanisms of fault mirror formation in carbonate rocks. Earth and Planetary Science Letters, 530, 115886–115900. doi: 10.1016/j.epsl.2019.115886.
- . (). The Presolar Grain Inventory of Fine-grained Chondrule Rims in the Mighei-type (CM) Chondrites. Meteoritics and Planetary Science, 55 (6), 1176–1206. doi: 10.1111/maps.13412.
- . (). Isotopic compositions, nitrogen functional chemistry, and low-loss electron spectroscopy of complex organic aggregates at the nanometer-scale in the carbonaceous chondrite Renazzo. Meteoritics and Planetary Science, 55 (6), 1293–1319. doi: 10.1111/maps.13389.
- . (). Investigating crystal orientation patterns of foraminiferal tests by Electron Backscatter Diffraction analysis. European Journal of Mineralogy, 32, 613–622. doi: 10.5194/ejm-32-613-2020.
- . (). A primordial 15N-depleted organic component detected within the carbonaceous chondrite Maribo. Scientific Reports, 10(1), 20251. doi: 10.1038/s41598-020-77190-z.
- . (). Amorphous silicates as a record of solar nebular and parent body processes-A transmission electron microscope study of fine-grained rims and matrix in three Antarctic CR chondrites. Meteoritics and Planetary Science, 55(7), 1491–1508. doi: 10.1111/maps.13526.
- . (). Ferric-ferrous iron ratios of experimental majoritic garnet and clinopyroxene as a function of oxygen fugacity. American Mineralogist, 105, 1866–1874. doi: 10.2138/am-2020-7265.
Abstracts in Digital Collections (Conferences)
- . (). Magnesium- and Silicon-Isotopic systematics of presolar silicate grains. In Lunar and Planetary Science Conference, Houston , p. #1024.
- . (). Investigation of nitrides in carbonaceous chondrites: a window to early solar nebula processes? In Lunar and Planetary Science Conference, Houston , p. #1937.
Research Articles (Journals)
- . (). Lead diffusion in CaTiO3: A combined study using Rutherford Backscattering and TOF-SIMS for depth profiling to reveal the role of lattice strain in diffusion processes. American Mineralogist, 104(4), 557–568.
Research Articles in Edited Proceedings (Conferences)
- . (). Chemical and petrographical characterization of amorphous silicate material in GEMS. In Paneth Kolloquium, Nördlingen , p. #0027.
- . (). The occurrence of silicon nitride in chondritic meteorites. In Paneth Kolloquium, Nördlingen , p. #0023.
- . (). Functional chemistry and isotopic composition of organics within the pristine chondrite Maribo. In Paneth Kolloquium, Nördlingen , p. #0033.
- . (). Challenges and applications of high spatial and energy eesolution EELS for mapping functional chemistry in beam-sensitive materials at low acceleration voltages. In Microscopy and Microanalysis, Portland, USA , p. Vol. 25 (Suppl 2). doi: 10.1017/S1431927619003131.
- . (). In situ isotopic study of nitrogen carriers in unequilibrated ordinary chondrites. In 82nd Annual Meeting of the Meteoritical Society, Sapporo, Japan , p. Abstr. #6360.
- . (). Probing the early solar nebula with meteoritic silicon nitride. In Lunar and Planetary Science Conference, Houston , p. #2961.
Abstracts in Digital Collections (Conferences)
- . (). Iron-60 in primitive meteorites: New in situ data. In Paneth Kolloquium, Nördlingen , p. #0042.
- . (). A fresh in situ search for signs of 60Fe in primitive chondrites. In 82nd Annual Meeting of the Meteoritical Society, Sapporo, Japan , p. Abstr. #6373.
- . (). Pb transport in CaTiO3 controlled by diffusion and recrystallization governed by lattice strain. In Goldschmidt Conference, Barcelona.
Research Articles (Journals)
- . (). Deformation mechanisms and evolution of the microstructure of gouge in the Main Fault in Opalinus Clay in the Mont Terri rock laboratory (CH). Solid Earth, 9, 1–24.
- . (). Structural Investigation of Silicon Carbide X Grains: Constraints on Condensation in Supernova Ejecta. The Astrophysical Journal, 868, 34–62.
- . (). An isotopic, elemental and structural study of silicon nitride from enstatite chondrites. Geochimica et Cosmochimica Acta, 235, 153–172. doi: 10.1016/j.gca.2018.05.025.
Research Articles in Edited Proceedings (Conferences)
- . (). A Study of Osbornite from Enstatite Chondrites at the submicrometer scale. In Lunar and Planetary Science Conference, Houston, USA , p. #1851.
- . (). The Formation of Large SiC Grains in Clumpy Supernova Ejecta. In 81st Annual Meeting of the Meteoritical Society, Moscow, Russia , p. Abstr. #6222.
- . (). Iron Oxidation State of Amorphous Silicates and Low-Loss Electron Energy Spectroscopy of Organic Matter in the Pristine CM Chondrite Maribo. In 81st Annual Meeting of the Meteoritical Society, Moscow, Russia , p. Abstr. #6109.
- . (). Nature of five polymict eucrites from the Antarctic Yamato dense collecting area. In Hayabusa 2018 : 6th Symposium of Solar System Materials, Tokyo.
Research Articles (Journals)
- (). Chemical composition and iron oxidation state of amorphous matrix silicates in the carbonaceous chondrite Acfer 04. Meteoritics and Planetary Science, 2017(1-14). doi: 10.1111/maps.12991.
- . (). Al2O3, SiO2 and TiO2 as Coatings for Safer LiNi0.8Co0.15Al0.05O2 Cathodes: Electrochemical Performance and Thermal Analysis by Accelerating Rate Calorimetry. Journal of The Electrochemical Society, 164(9), A2190–A2198. doi: 10.1149/2.0071712jes.
Research Articles in Edited Proceedings (Conferences)
- . (). An experimental study on alteration in Eucrites and the petrology of Vesta´s crust. In Paneth Kolloquium, Nördlingen.
- . (). Minor Element Zoning in presolar SiC of Supernova Origin. In Paneth Kolloquium, Nördlingen.
- . (). Exploring Chondrule and CAI Rims Using Micro- and Nano-Scale Petrological and Compositional Analysis. In American Geophysical Union Fall Meeting, New Orleans, USA.
- . (). Nitrogen Functional Chemistry of Organic Grains in CR Chondrites and IDPs. In Annual Meeting of the Meteoritical Society, Santa Fe, USA , p. A6206.
- . (). A SEM and NanoSIMS Investigation of Organic Aggregates in the CR Chondrites Miller Range 07525 and Renazzo. In Annual Meeting of the Meteoritical Society, Santa Fe, USA , p. A6154.
- . (). The Silicon Nitride Inventory of Enstatite Chondrites. In Lunar and Planetary Science Conference, Houston , p. #1391.
Research Articles (Journals)
- (). Formation of mg-rich olivine pseudomorphs in serpentinized dunite from the Mesoarchean Nuasahi Massif, Eastern India: Insights into the evolution of fluid composition at the mineral-fluid interface. Journal of Petrology, 57(1), 3–26. doi: 10.1093/petrology/egv070.
Research Articles in Edited Proceedings (Conferences)
- . (). NanoSIMS and TEM Investigations of Supernova SiC Grains. In Lunar and Planetary Science Conference, Houston , p. #1478.
- . (). TEM Investigations of Amorphous Silicates in Fine-Grained Rims from Antarctic CR2 Chondrites. In Lunar and Planetary Science Conference, Houston , p. #1933.
- . (). Lessons learned from electron microscopy of deformed Opalinus Clay. In International Workshop on Advances in Laboratory Testing and Modelling of Soils and Shales, Villars-sur-Ollon, Switzerland.
- . (). Nanoscale Alteration of amorphous Fe-silicate in meteorites. In Goldschmidt Conference, Yokohama, Japan.
- . (). The Presolar Grain Inventory of CM Chondrites. In Meteoritical Society Meeting, Berkeley, USA , p. A5178.
- . (). Textural investigations of possible fluid-mineral interactions in eucrites. In Goldschmidt Conference, Prague, CZ , p. A4462.
- (). CM chondrite aqueous alteration – chemical and oxygen isotope constraints from calcite. . In (Ed.) Paneth-Kolloquium, Nördlingen , p. #0025.
- . (). Isotopic and Structural Investigation of Presolar SiC Grains of Supernova Origin. In Lunar and Planetary Science Conference, Houston , p. 1733.
- . (). Micro investigations of possible fluid-mineral interactions recorded in eucritic meteorites. In 92. Jahrestagung der Deutschen Mineralogischen Gesellschaft, Jena.
- . (). Modelling changes of the Paleogene Ca budget using benthic foraminifera. In American Geophysical Union Fall Meeting, San Francisco, USA.
- . (). Oxygen isotope systematics of CM chondrite calcite: Constraints on aqueous alteration. In 92. Jahrestagung der Deutschen Mineralogischen Gesellschaft, Jena.
- (). Clues to the formation of nanoscale alteration textures in the CM chondrites Murchison and Maribo . In 92. Jahrestagung der Deutschen Mineralogischen Gesellschaft, Jena.
- . (). The valency of iron in the silicates of CR chondrite matrices: observations and experiments. In Lunar and Planetary Science Conference , p. 2052.
- . (). Alteration of amorphous Fe-silicate in meteorites. In Goldschmidt Conference, Florence, Italy.
- . (). Search for presolar grains in fine-grained chondrule rims: first results from CM chondrites and Acfer 094. In Lunar and Planetary Science Conference, Houston , p. 2273.
- . (). Serpentinization of Amorphous Silicate in the Early Solar System: A Nanoscale Experimental Study. In Lunar and Planetary Science Conference, Houston , p. 1969.
- . (). Characterization of Presolar Material in Fine-Grained Chondrule Rims and Matrix of CR Chondrites. In Meteoritical Society Meeting, Edmonton, Canada , p. A217.
- . (). Microstructural evolution and element mobility during fluid-mediated gabbro-to-eclogite transformation. In EGU General Assembly Conference, Vienna , p. 7711.
- . (). Partitioning of F between Nominally Fluorine-Free Minerals and Basaltic Melts: Implications for the Global Cycle of Halogens. In Goldschmidt Conference, Prag , p. 1945.
- . (). Aberration-corrected SuperSTEM analysis of isotopically anomalous carbonaceous hotspots in primitive extraterrestrial samples. In European Microscopy Congress, Manchester , p. 629.
- . (). Abundant Primitve Phases in Fine-Grained Chondrule Rims of CR and Related Chondrites. In Meteoritical Society Meeting, Cairns, Australia , p. 5191.
- . (). GENTLE ABERRATION-CORRECTED STEM ANALYSIS OF N-15-AND D-HOTSPOTS IN CHONDRITIC SAMPLES. In METEORITICS & PLANETARY SCIENCE , pp. A394–A394.
- . (). TIMING OF HYDRATION ON THE CM PARENT BODY INFERRED FROM COMBINED IN-SITU STUDIES ON THE MARIBO AND MURCHISON CHONDRITES. In Meteoritical Society Meeting, Cairns , p. A393.
- . (). The Association of 15N-anomalous Matter with Stardust in Chondrites Acfer 094 and NWA 852. In Lunar and Planetary Science Conference , p. 1720.
Research Articles (Journals)
- . (). The inventory of presolar grains in primitive meteorites: a NanoSIMS study of C-, N-, and O-isotopes in NWA 852. Proc. Symp. Nuclei Cosmos XI, 144.
Research Articles in Edited Proceedings (Conferences)
- . (). First Fe Isotopic Measurement of a Highly 17O-enriched Stardust Silicate. In Lunar and Planetary Science Conference, Houston , p. 1200.
- . (). NanoSIMS search for interstellar silicate dust in chondritic samples. In Goldschmidt Conference, Davos, Switzerland , p. A1392.
Research Articles (Journals)
- . (). Presolar silicates in meteorites and interplanetary dust particles. IXth Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the IInd Perugia Workshop on Nuclear Astrophysics. AIP Conference Proceedings, 1001, 254–261.
Research Articles in Edited Proceedings (Conferences)
- . (). Silicon Isotope Measurements of Presolar Silicates. In Lunar and Planetary Science Conference , p. 1093.
- . (). NanoSIMS Studies of Small Presolar SiC Grains: C-and Si-Isotopic Compositions and Trace Element Abundances. In Lunar and Planetary Science Conference , p. 1025.
- . (). Atypical magnesium abundances in oxygen-rich stardust: Nanosims and Auger analyses. In Meteoritical Society Meeting, Matsue, Japan , p. A164.
- . (). A Presolar Silicate Trilogy: Condensation, Coagulation and Transformation-New Insights from NanoSIMS/TEM Investigations. In Lunar and Planetary Science Conference, Houston , p. 1262.
- . (). Auger analysis of presolar silicates in acifer 094 and the discovery of a presolar CAI. In Meteoritical Society Meeting, Tucson, USA , p. A158.
- . (). Search for S-bearing presolar grains in the Acfer 094 meteorite. In Meteoritical Society Meeting, Tucson, USA , p. A69.
- . (). Characterization of Presolar Silicate Grains by Combined NanoSIMS/TEM Studies. In Meteoritical Society Meeting, Zürich , p. 5194.
- . (). A Complex Presolar Grain in Acfer 094-Fingerprints of a Circumstellar Condensation Sequence? In Lunar and Planetary Science Conference, Houston.