Professional career
•	2016 Appointment as “außerplanmäßiger Professor” (extraordinary professor)
•	2011 Habilitation at the Georg-August-Universität Göttingen 
Habilitation Thesis " Biofilm calcification and microbialite formation in context of their depositional environments" 
venia legendi in Geology and Palaeontology
•	2005 Deputy Coordinator DFG Research Group "Geobiology of Bio- and Organofilms" (FOR 571) 
•	1999: Promotion (Dr. rer. nat.) at the Georg-August-Universität Göttingen. 
Doctoral Thesis "Calcification of non-marine cyanobacterial biofilms (USA, PR China, Indonesia, Germany) - Implications for the interpretation of fossil microbialites"
•	1992-1997: Fellow of the Studienstiftung des Deutschen Volkes
•	1995 - 1999: Promotion
•	1994: Diploma at the Friedrich-Alexander-Universität Erlangen 
Diploma Thesis "Algenflora und Fazies der miozänen Karbonate am Nordrand des Kratersees im Nördlinger Ries (Süddeutschland)"
•	1989 - 1994: Study of geology and palaeontology at the University of Erlangen
Research Topics
Geomicrobiology:
Biofilm Calcification & Stromatolites 
•	salt lakes 
•	karstic streams
•	ocean chemistry 
Sedimentology: 
Nördlinger Ries Crater Lake 
(DFG-Project AR 335/9) 
•	microbial carbonates 
•	lacustrine sediments
•	chemical lake evolution 
Palaeontology: 
Lower Jurassic Schwarzjura Group 
•	stratigraphy 
•	ammonites & bivalves
•	seawater currents
Funded Projects: Gepris
Teaching
Modul M.Geo.112: Geomicrobiology 
Modul B.Geo.209: Biosedimentology
Modul B.Geo.102, GÜ Va: Regional Geology of Göttingen
Modul B.Geo.107: Geological Mapping
Selected Publications
Arp, G., Dunkl, I., Jung, D., Karius, V., Lukács, R., Zeng, L, Reimer, A. & Head, J.W. III (2021): A volcanic ash layer in the Nördlinger Ries impact structure (Miocene, Germany): Indication of crater fill geometry and origins of long-term crater floor sagging. - Journal of Geophysical Research Planets, 126 (4): e2020JE006764. https://doi.org/10.1029/2020JE006764 (open access)
Arp, G., Gropengießer, S., Schulbert, C., Jung, D., Reimer, A. (2021): Biostratigraphy and sequence stratigraphy of the Toarcian Ludwigskanal section (Franconian Alb, Southern Germany). - Zitteliana 95: 57–94.  https://doi.org/10.3897/zitteliana.95.56222 (open access)
Arp, G., Helms, G., Karlinska, K., Schumann, G., Reimer, A., Reitner, J. & Trichet, J. (2012): Photosynthesis versus exopolymer degradation in the formation of microbialites on the atoll of Kiritimati, Republic of Kiribati, Central Pacific. - Geomicrobiology Journal 29: 29-65. https://doi.org/10.1080/01490451.2010.521436
Arp, G., Bissett, A., Brinkmann, N., Cousin, S., de Beer, D., Friedl, T., Mohr, K.I., Neu, T.R., Reimer, A., Shiraishi, F., Stackebrandt, E. & Zippel, B. (2010): Tufa-forming biofilms of German karstwater streams: Microorganisms, exopolymers, hydrochemistry and calcification. - Geological Society Special Publication 336: 83-118, London. https://doi.org/10.1144/SP336.6
Arp, G., Reimer, A. & Reitner, J. (2001): Photosynthesis-induced biofilm calcification and calcium concentrations in Phanerozoic oceans. - Science, 292: 1701-1704, Washington. https://doi.org/10.1126/science.1057204
Publications (GöttingenResearchOnline)