Dr. Christian Vollmer

Dr. Christian Vollmer

Corrensstr. 24
48149 Münster

Academic Profiles

  • 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 Areas

    • 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

    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

    German Society for Electron Microscopy
    European Microscopy Society
    Meteoritical Society
    German Mineralogical Society

  • Project

    • SPP 1833: Building a Habitable Earth - Sub-project: 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

  • Publications

    • Vollmer Christian , Kepaptsoglou Demie , Leitner Jan , Mosberg B. Aleksander , Hajraoui El Khalil , King J. Ashley , Bays L. Charlotte , Schofield F. Paul , Araki Tohru , Ramasse M. Quentin. (). 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.

    • Pangritz P, Rohrbach A, Vollmer C, Berndt J Müller S, Radic D, Basten S & Klemme S. (). 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.

    Research Articles (Journals)
    • Kodolányi J, Hoppe P, Vollmer C, Berndt J & Müller M. (). 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.
    • Kodolanyi Janos, Hoppe Peter, Vollmer Christian, Berndt Jasper, Mueller Maren. (). 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)
    • Kerraouch I., Bischoff A., Zolensky M. E., Trieloff M., Krot A. N., Nagashima K., Vollmer C., Patzek M., Ebert S., Radić D., Treiman A. & Rubin A. E. (). Discovery of hydrated clasts with very high abundance of ferromagnesian 16O-rich olivine: Inner or outer solar system origin? In Meteoritical Society Meeting, Glasgow.

    • Rombeck S, Vollmer C, Roszjar J, Sarafian A & Klemme S. (). 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.
    • Hoppe P, Leitner J, Kodolányi J & Vollmer C. (). Isotope Systematics of Presolar Silicate Grains: New Insights from Magnesium and Silicon. Astrophysical Journal, 913(1), 10–27. doi: 10.3847/1538-4357/abf041.
    • Ghosh S, Tiwari K, Miyahara M, Rohrbach A, Vollmer C, Stagno V, Ohtani E & Ray D. (). 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.
    • Shaikh AM, Tappe S, Bussweiler Y, Vollmer C & Brown RJ. (). Origins of olivine in Earth’s youngest kimberlite: Igwisi Hills volcanoes, Tanzania craton. Contributions to Mineralogy and Petrology, 176, 62.

    Research Articles (Journals)
    • Ohl M, Plümper O, Chatzaras V, Wallis D, Vollmer C & Drury M. (). Mechanisms of fault mirror formation in carbonate rocks. Earth and Planetary Science Letters, 530, 115886–115900. doi: 10.1016/j.epsl.2019.115886.
    • Leitner J, Metzler K, Vollmer C, Floss C, Haenecour P, Kodolànyi J, Harries D & Hoppe P. (). 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.
    • Vollmer C, Leitner J, Kepaptsoglou D, Ramasse Q M, Busemann H & Hoppe P. (). 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.
    • Vollmer Christian, Pelka Mandy, Leitner Jan, Janssen Arne. (). 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.
    Research Articles in Edited Proceedings (Conferences)
    • Hoppe P, Leitner J, Kodolányi J & Vollmer C. (). Magnesium- and Silicon-Isotopic systematics of presolar silicate grains. In Lunar and Planetary Science Conference, Houston , p. #1024.
    • Leitner J, Vollmer C, Harries D, Kodolányi J, Ott U & Hoppe P. (). 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)
    • Beyer C, Dohmen R, Rogalla D, Becker H-W, Marquardt K, Vollmer C, Hagemann U, Hartmann N & Chakraborty S. (). 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)
    • Kodolányi J, Hoppe P, Vollmer C & Berndt-Gerdes J. (). Iron-60 in primitive meteorites: New in situ data. In Paneth Kolloquium, Nördlingen , p. #0042.
    • Schulz B, Vollmer C & Keller L P. (). Chemical and petrographical characterization of amorphous silicate material in GEMS. In Paneth Kolloquium, Nördlingen , p. #0027.
    • Leitner J, Vollmer C, Ott U & Hoppe P. (). The occurrence of silicon nitride in chondritic meteorites. In Paneth Kolloquium, Nördlingen , p. #0023.
    • Vollmer C, Leitner J, Kepaptsoglou D, Ramasse Q M, King A J & Schofield P. (). Functional chemistry and isotopic composition of organics within the pristine chondrite Maribo. In Paneth Kolloquium, Nördlingen , p. #0033.
    • Ramasse Q M, Kepaptsoglou D M, Vollmer C, Hage F, Abellan P & Leitner J. (). 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.
    • Leitner J, Vollmer C & Hoppe P. (). In situ isotopic study of nitrogen carriers in unequilibrated ordinary chondrites. In 82nd Annual Meeting of the Meteoritical Society, Sapporo, Japan , p. Abstr. #6360.
    • Kodolanyi J, Hoppe P & Vollmer C. (). 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.
    • Beyer C, Marquardt K, Vollmer C & Chakraborty S. (). Pb transport in CaTiO3 controlled by diffusion and recrystallization governed by lattice strain. In Goldschmidt Conference, Barcelona.
    • Leitner J, Vollmer C, King A J, Schofield P F, Mosselmans J F W & Hoppe P. (). Probing the early solar nebula with meteoritic silicon nitride. In Lunar and Planetary Science Conference, Houston , p. #2961.

    Research Articles (Journals)
    • Leitner J, Vollmer C, Henkel T, Ott U & Hoppe P. (). 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.
    • Laurich B, Urai J L, Vollmer C & Nussbaum C. (). 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.
    • Kodolanyi J, Vollmer C, Hoppe P & Müller M. (). Structural Investigation of Silicon Carbide X Grains: Constraints on Condensation in Supernova Ejecta. The Astrophysical Journal, 868, 34–62.
    Research Articles in Edited Proceedings (Conferences)
    • Leitner J, Vollmer C & Hoppe P. (). A Study of Osbornite from Enstatite Chondrites at the submicrometer scale. In Lunar and Planetary Science Conference, Houston, USA , p. #1851.
    • Kodolanyi J, Hoppe P & Vollmer C. (). The Formation of Large SiC Grains in Clumpy Supernova Ejecta. In 81st Annual Meeting of the Meteoritical Society, Moscow, Russia , p. Abstr. #6222.
    • Vollmer C, Leitner J, Ramasse Q, Kepaptsoglou D M & Hoppe P. (). 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.
    • Roszjar J, Rombeck S, Vollmer C, Klemme S & Sarafian AR. (). 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)
    • Hildebrand Stephan, Vollmer Christian, Winter Martin, Schappacher Falko Mark. (). 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.
    • Hopp T. & Vollmer C. (). 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.
    Research Articles in Edited Proceedings (Conferences)
    • Rombeck S M, Vollmer C, Sarafian A, Roszjar J & Klemme S. (). An experimental study on alteration in Eucrites and the petrology of Vesta´s crust. In Paneth Kolloquium, Nördlingen.
    • Kodolanyi J, Vollmer C & Hoppe P. (). Minor Element Zoning in presolar SiC of Supernova Origin. In Paneth Kolloquium, Nördlingen.
    • Cartwright J, Perez-Huerta A, Leitner J & Vollmer C. (). Exploring Chondrule and CAI Rims Using Micro- and Nano-Scale Petrological and Compositional Analysis. In American Geophysical Union Fall Meeting, New Orleans, USA.
    • Vollmer C, Leitner J, Busemann H, Spring N, Ramasse Q, Kepaptsoglou D M & Hoppe P. (). Nitrogen Functional Chemistry of Organic Grains in CR Chondrites and IDPs. In Annual Meeting of the Meteoritical Society, Santa Fe, USA , p. A6206.
    • Leitner J, Vollmer C & Hoppe P. (). 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.
    • Leitner J, Vollmer C, Henkel T & Hoppe P. (). The Silicon Nitride Inventory of Enstatite Chondrites. In Lunar and Planetary Science Conference, Houston , p. #1391.

    Research Articles (Journals)
    • Majumdar A., Hövelmann J., Vollmer C., Berndt J., Mondal S. & Putnis A. (). 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)
    • Kodolányi J, Vollmer C, Hoppe P & Müller M. (). NanoSIMS and TEM Investigations of Supernova SiC Grains. In Lunar and Planetary Science Conference, Houston , p. #1478.
    • Vollmer C, Pelka M, Leitner J, Janssen A & Hoppe P. (). TEM Investigations of Amorphous Silicates in Fine-Grained Rims from Antarctic CR2 Chondrites. In Lunar and Planetary Science Conference, Houston , p. #1933.
    • Laurich B, Urai J L, Desbois G, Klaver J, Vollmer C & Nussbaum C. (). 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.
    • Le Guillou C, Dohmen R, Müller T, Vollmer C, Rogalla D & Becker H W. (). Nanoscale Alteration of amorphous Fe-silicate in meteorites. In Goldschmidt Conference, Yokohama, Japan.

    • Leitner J, Hoppe P, Metzler K, Haenecour P, Floss C & Vollmer C. (). The Presolar Grain Inventory of CM Chondrites. In Meteoritical Society Meeting, Berkeley, USA , p. A5178.
    • Vollmer C, Sarafian A R, Janssen A, Burke M G & Putnis A. (). Textural investigations of possible fluid-mineral interactions in eucrites. In Goldschmidt Conference, Prague, CZ , p. A4462.
    • Horstmann, M., Ebert, S., Vollmer, C., Barth, M.I.F., Chaussidon, M., Gurenko, A. & Bischoff, A. (). CM chondrite aqueous alteration – chemical and oxygen isotope constraints from calcite. . In Paneth-Kolloquium (Ed.) Paneth-Kolloquium, Nördlingen , p. #0025.
    • Kodolányi J, Hoppe P, Vollmer C & Müller M. (). Isotopic and Structural Investigation of Presolar SiC Grains of Supernova Origin. In Lunar and Planetary Science Conference, Houston , p. 1733.

    • Vollmer C, Sarafian A R, Janssen A, Putnis A . (). Micro investigations of possible fluid-mineral interactions recorded in eucritic meteorites. In 92. Jahrestagung der Deutschen Mineralogischen Gesellschaft, Jena.
    • Pabich S, Gussone N, Rabe K, Vollmer C, Pälike H, Teichert B M A . (). Modelling changes of the Paleogene Ca budget using benthic foraminifera. In American Geophysical Union Fall Meeting, San Francisco, USA.
    • Horstmann M., Vollmer C., Barth M. I. F., Chaussidon M., Gurenko A., and Bischoff A. (). Oxygen isotope systematics of CM chondrite calcite: Constraints on aqueous alteration. In 92. Jahrestagung der Deutschen Mineralogischen Gesellschaft, Jena.
    • Barth M., Vollmer, C., Bischoff A., and Horstmann M. (). Clues to the formation of nanoscale alteration textures in the CM chondrites Murchison and Maribo . In 92. Jahrestagung der Deutschen Mineralogischen Gesellschaft, Jena.
    • Le Guillou C, Changela H, Dohmen R, Müller T, Brearley A, Vollmer C, Rogalla D & Becker H. (). The valency of iron in the silicates of CR chondrite matrices: observations and experiments. In Lunar and Planetary Science Conference , p. 2052.

    • Le Guillou C, Dohmen R, Müller T, Vollmer C, Rogalla D & Becker H. (). Alteration of amorphous Fe-silicate in meteorites. In Goldschmidt Conference, Florence, Italy.
    • Leitner J, Metzler K, Vollmer C, Hoppe P . (). 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.
    • Le Guillou C, Dohmen R, Müller T, Vollmer C, Rogalla D & Becker H. (). Serpentinization of Amorphous Silicate in the Early Solar System: A Nanoscale Experimental Study. In Lunar and Planetary Science Conference, Houston , p. 1969.
    • Leitner J, Vollmer C, Hoppe P & Zipfel J. (). Characterization of Presolar Material in Fine-Grained Chondrule Rims and Matrix of CR Chondrites. In Meteoritical Society Meeting, Edmonton, Canada , p. A217.
    • Müller S, John T, Vollmer C & Putnis A. (). Microstructural evolution and element mobility during fluid-mediated gabbro-to-eclogite transformation. In EGU General Assembly Conference, Vienna , p. 7711.

    • Vollmer C, Horstmann M, Barth M, Bischoff A & Putnis A. (). 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.
    • Klemme S, Beyer C, Vollmer C, Wiedenbeck M, Stracke A . (). Partitioning of F between Nominally Fluorine-Free Minerals and Basaltic Melts: Implications for the Global Cycle of Halogens. In Goldschmidt Conference, Prag , p. 1945.
    • Vollmer C, Leitner J, Busemann H, Spring N, Ramasse Q & Kepaptsoglou D. (). Aberration-corrected SuperSTEM analysis of isotopically anomalous carbonaceous hotspots in primitive extraterrestrial samples. In European Microscopy Congress, Manchester , p. 629.
    • Leitner J, Vollmer C, Hoppe P & Zipfel J. (). Abundant Primitve Phases in Fine-Grained Chondrule Rims of CR and Related Chondrites. In Meteoritical Society Meeting, Cairns, Australia , p. 5191.
    • Vollmer C, Leitner J, Busemann H, Spring N, Ramasse Q & Kepaptsoglou D. (). GENTLE ABERRATION-CORRECTED STEM ANALYSIS OF N-15-AND D-HOTSPOTS IN CHONDRITIC SAMPLES. In METEORITICS & PLANETARY SCIENCE , pp. A394–A394.

    • Vollmer C, Leitner J, Busemann H, Spring N & Hoppe P. (). 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)
    • Leitner J, Hoppe P, Vollmer C & Zipfel J. (). 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)
    • Vollmer C & Hoppe P. (). First Fe Isotopic Measurement of a Highly 17O-enriched Stardust Silicate. In Lunar and Planetary Science Conference, Houston , p. 1200.

    • Vollmer C, Hoppe P & Stephan T. (). NanoSIMS search for interstellar silicate dust in chondritic samples. In Goldschmidt Conference, Davos, Switzerland , p. A1392.

    Research Articles (Journals)
    • Hoppe P & Vollmer C. (). 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)
    • Vollmer C, Stadermann FJ, Floss C, Hoppe P & Brenker FE. (). Atypical magnesium abundances in oxygen-rich stardust: Nanosims and Auger analyses. In Meteoritical Society Meeting, Matsue, Japan , p. A164.
    • Vollmer C & Hoppe P. (). Silicon Isotope Measurements of Presolar Silicates. In Lunar and Planetary Science Conference , p. 1093.
    • Hoppe P, Vollmer C, Heck P, Groener E, Gallino R & Amari S. (). NanoSIMS Studies of Small Presolar SiC Grains: C-and Si-Isotopic Compositions and Trace Element Abundances. In Lunar and Planetary Science Conference , p. 1025.

    • Vollmer C, Stadermann FJ, Bose M, Floss C, Hoppe P & Brenker FE. (). Auger analysis of presolar silicates in acifer 094 and the discovery of a presolar CAI. In Meteoritical Society Meeting, Tucson, USA , p. A158.
    • Hoppe P & Vollmer C. (). Search for S-bearing presolar grains in the Acfer 094 meteorite. In Meteoritical Society Meeting, Tucson, USA , p. A69.
    • Vollmer C, Hoppe P, Brenker F & Holzapfel C. (). A Presolar Silicate Trilogy: Condensation, Coagulation and Transformation-New Insights from NanoSIMS/TEM Investigations. In Lunar and Planetary Science Conference, Houston , p. 1262.

    • Vollmer C, Hoppe P, Brenker F, Stroud R & Holzapfel C. (). Characterization of Presolar Silicate Grains by Combined NanoSIMS/TEM Studies. In Meteoritical Society Meeting, Zürich , p. 5194.
    • Vollmer C, Hoppe P, Brenker F & Palme H. (). A Complex Presolar Grain in Acfer 094-Fingerprints of a Circumstellar Condensation Sequence? In Lunar and Planetary Science Conference, Houston.