Petrology of lunar impact rocks with focus on cumulate impact melt rocks and mantle-derived lithologies.
Petrology of martian regolith breccia meteorites.
Petrology of terrestrial impact rocks from the Chicxulub, Rochechouart, and Ries craters.
Petrology and chronology of HED impact melt rocks.
Shock metamorphism of the rock-forming minerals
Invited lecture 'Petrology of Lunar Meteorite Shişr 161' at the Center for Meteorite Studies of Arizona State University, 2015.
Colloquium lecture 'Petrology of Lunar Meteorite Shişr 161' at the Department of Geology - Geography of Illinois State University, Bloomington-Normal 2013.
Seminar talk 'Petrology of Impactites from El’gygytgyn Crater, NE Siberia' at the Department of Geology of Southern Illinois University Carbondale, 2013.
DPS/CESPAR Seminar talk “An LL at El’gygytgyn? Petrologic observations at one of the youngest, large terrestrial impact craters” at the Open University in Milton Keynes, England, 2013.
Colloquim talk ‘LaPaz Icefield 031047 – A feather of Icarus ?’ at the Department of Earth and Planetary Sciences, Washington University in St. Louis, 2012
Seminar talk “Impact cratering on the H-chondrite parent asteroid” at the Department of Geology of the University of New Brunswick in Fredericton, Canada, 2009.
Invited Lecture for the Network on Impact Research workshop and excursion in Gol, Norway: “Formation and Emplacement of Impactites in Large Terrestrial Impact Structures”, 2009
Scientific Seminar at the USGS National Center in Reston, VA.: “Petrological comparison of suevite-like rocks from the Chicxulub and Chesapeake Bay impact structures”, 2008
Scientific Colloquium at the Federal Agency for Geosciences and Natural Resources in Berlin: “Impactite petrography on a drill core through the Chicxulub impact crater”, 2006
Seminar of the Friends and Supporters of the Museum of Natural History, Berlin: “Geology of the lower continental crust – the Ivrea Zone (Southern Alps)”, 2005
Institute of Geophysics of the Universidad Nacional Autonoma de Mexico, Mexcio City: “Impact-induced dike lithologies in drill core Yaxcopoil-1 (Chicxulub Impact structure, Mexico)”, 2004