2001 Mafic Eifel Magmatism

2003 Time Scales of Xenolith Entrainment

2005 Blaue Kuppe Contact Metamorphism 

2007 Geochemistry across the Permian Unconformity

2008 Chalcophile Element Mobilisation in Laacher See Phonolitie Magma

2009 Provenance of Lithics in Paleozoic Sediments (Harz Mountains)

2011 / 2012 Mineralogy and Chemistry of Alteration Zones - Central Anden Volcanic Zone ( S. Peru)