Dr. Christopher Hamann

Aufgabengebiete

• Wissenschaftlicher Mitarbeiter in der Abteilung Impakt- und Meteoritenforschung
• Leiter des Labors für Elektronenstrahlmikrosondenanalytik
• Leiter des Labors für Rasterelektronenmikroskopie (Geowissenschaften)
• Geo.X-Koordinator am Museum für Naturkunde

Forschungsschwerpunkte

• Entstehung, Petrologie, und Geochemie von Impaktschmelzen
• Chemische Interaktion zwischen Projektil und Target während des Impaktprozesses
• Entwicklung und Anwendung laser-basierter Verfahren zur Impaktforschung

Publikationen (Auswahl)

Morlok, A., Hamann, C., Martin, D., Weber, I., Joy, K. H., Hiesinger, H., Wogelius, R., Stojic, A., Helbert, J. (2020) Mid-infrared spectroscopy of laser-produced basalt melts for remote sensing application. Icarus 355, 113410. https://doi.org/10.1016/j.icarus.2019.113410

McKibbin, S., Pittarello, L., Makarona, C., Hamann, C., Hecht, L., Chernonozhkin, S. M., Goderis, S., Claeys, P. (2019) Petrogenesis of main group pallasite meteorites based on relationships among texture, mineralogy, and geochemistry. Meteoritics & Planetary Science. https://doi.org/10.1111/maps.13392

Hamann, C., Bläsing, S., Hecht, L., Schäffer, S., Deutsch, A., Osterholz, J., Lexow, B. (2018) The reaction of carbonates in contact with laser-generated, superheated silicate melts: Constraining impact metamorphism of carbonate-bearing target rocks. Meteoritics & Planetary Science 53, 1644–1686. https://doi.org/10.1111/maps.13133

Hamann, C., Fazio, A., Ebert, M., Hecht, L., Wirth, R., Folco, L., Deutsch, A., Reimold, W. U. (2018) Silicate liquid immiscibility in impact melts. Meteoritics & Planetary Science 53, 1594–1632. http://dx.doi.org/10.1111/maps.12907

Stöffler, D., Hamann, C., Metzler, K. (2017) Schock metamorphism of planetary silicate rocks and sediments: Proposal for an updated classification system. Meteoritics & Planetary Science 53, 5–49. https://doi.org/10.1111/maps.12912

Ebert, M., Hecht, L., Hamann, C., Luther, R. (2017) Laser-induced melting experiments: Simulation of short-term high-temperature impact processes. Meteoritics & Planetary Science, 52, 1475–1494. http://dx.doi.org/10.1111/maps.12809

Van Roosbroek, N., Hamann, C., McKibbin, S., Greshake, A., Wirth, R., Pittarello, L., Hecht, L., Claeyes, P., Debaille, V. (2017) Immiscible silicate liquids and phosphoran olivine in Netschaëvo IIE silicate: Analogue for planetesimal core–mantle boundaries. Geochmimica et Cosmochimica Acta, 192, 295–317. http://dx.doi.org/10.1016/j.gca.2016.10.042

Hamann, C., Luther, R., Ebert, M., Hecht, L., Deutsch, A., Wünnemann, K., Schäffer, S., Osterholz, J., Lexow, B. (2016) Correlating laser-generated melts with impact-generated melts: An integrated thermodynamic–petrologic approach. Geophysical Reserach Letters, 43, 10602–10610. Open Access: http://dx.doi.org/10.1002/2016GL071050

Hamann, C., Stöffler, D., Reimold, W. U. (2016) Interaction of aluminum projectiles with quartz sand in impact experiments: Formation of khatyrkite (CuAl2) and reduction of SiO2 to Si. Geochmimica et Cosmochimica Acta, 192, 295–317. http://dx.doi.org/10.1016/j.gca.2016.07.018

Hamann, C., Hecht, L., Ebert, M., Wirth, R. (2013) Chemical projectile–target interaction and liquid immiscibility in impact glass from the Wabar craters, Saudi Arabia. Geochmimica et Cosmochimica Acta, 121, 291–310. http://dx.doi.org/10.1016/j.gca.2013.07.030