Ivar Hessland’s perspective on the importance of marine sedimentology and sediment geochemistry created an opportunity for his former research student, Rolf Hallberg to establish a new research field in Stockholm which stemmed from this area. In 1984, Rolf Hallberg was installed as professor in the newly-established discipline of Microbial Geochemistry. In connection with the name change to the Department of Geology and Geochemistry in 1989, Rolf Hallberg renamed his program Biogeochemistry. Hallberg’s successor was Patrick Crill who was previously at the University of New Hampshire. Patrick Crill’s research focuses on trace gas (methane, carbon dioxide, hydrogen, nitrogen) exchange between the atmosphere and the biosphere, organic geochemistry and geomicrobiology. In 2005, he broadened the name of his program to Geochemistry.

• Geology at Stockholms högskola and Stockholms universitet
• From Geology and Mineralogy in 1881 to Marine Geology in 2010
• From Mineralogy and Petrography in 1909 to Geology in 2005
• From Microbial Geochemistry in 1984 to Geochemistry in 2005
• Department of Geological Sciences
• Promoted professors 2000–2010
• Closing remarks