Lennart M. van Maldegem
Post-doctoral researcher
Address: 142 Mills Rd, 2601, Canberra, Australia
E-mail:
Education
2013-2017
PhD in Geosciences
University of Bremen, Germany
2011-2012
MSc in Geochemistry
University of Leeds, United Kingdom
2007-2011
BSc in Chemistry
Avans University, The Netherlands
Research experience
2018–Present
Postdoctoral Research Fellow at The Australian National University
Project: The Lost World of Complex Life; Brocks Geobiology Laboratory, Research School of Earth Sciences, The Australian National University, Canberra, Australia; Mentored by Jochen Brocks
2013–2017
Doctoral Researcher at The Max Planck Institute for Biogeochemistry
Thesis: Molecular and isotopic signatures of life surrounding the Neoproterozoic Snowball Earth Events; Organic Paleobiogeochemistry Group, Max Plank Institute for Biogeochemistry, Bremen, Germany;Supervised by Christian Hallmann
2012
MSc dissertation project at the University of Leeds
Thesis: Adsorption of Ni(II) to ferrihydrite and ferrihydrite-bacteria composites; Cohen geochemistry research group, School of Earth and Environment, University of Leeds, United Kingdom; Supervised by Caroline Peacock
2011
BSc dissertation project at the Kyungpook National University
Thesis: Cloning and recombinant protein expression of the human Prmt5 gene, Structural Biology Group, Kyungpook National University, Deagu, South Korea; Supervised by Eric DiLuccio
2010–2011
BSc research apprenticeship at the Royal NIOZ
Report: Purification and quantification of archaeal tetraether lipids; Marine microbiology and biogeochemistry group (MMB), Royal Netherlands Institute for Sea Research (NIOZ), the Netherlands; Supervised by Stefan Schouten
Publications
Bisnorgammacerane traces predatory pressure and the persistent rise of algal ecosystems after Snowball Earth (2019) Nature Communications, 10-1
Van Maldegem, L. M., Sansjofre, P., Weijers, J. W. H., Wolkenstein K., Strother, P. K., Wormer, L., Hefter, J., Nettersheim, B. J., Hoshino, Y., Schouten, S., Sinnighe Damsté, J. S., Nath, N., Griesinger, C., Kuznetsov, N.B., Elie, M., Elvert, M., Tegelaar, E., Gleixner, G., and Hallmann, C.
Cryogenian evolution of stigmasteroid biosynthesis (2017) Science Advances 3, no. 9
Hoshino, Y., Poshibaeva, A., Meredith, W., Snape, C., Versteegh G. J. M., Kuznetsov, N., Leider, A., Van Maldegem, L.M., Neumann, M., Naeher, S., Moczydłowska, M., Brocks, J.J., Jarrett, A.J.M., Tang, Q., Xiao, S., McKirdy, D., Das, S. K., Alvaro, J. J., Sansjofre, P. and Hallmann, C.
Geological alteration of Precambrian steroids mimics early animal signatures (2020) Nature Ecology
and Evolution
Van Maldegem, L. M., Nettersheim, B.J., Leider, A., Brocks, J. J., Adam, P., Schaeffer, P., and
Hallmann, C.
Substantial maturity influence on carbon and hydrogen isotopic composition of n-alkanes in
sedimentary rocks (2021) Organic Geochemistry
Vinnichenko, G., Jarrett, A. M., Van Maldegem, L. M., and Brocks, J. J.,
Submitted manuscripts
Redox and community control on Precambrian carbon isotope systematics (under review)
Van Maldegem, L. M., et al.,
Selected presentations
29th International Meeting in Organic Geochemistry 2019, Gothenburg, Sweden “A diagenetic origin for Neoproterozoic 26-alkyl steranes” (oral presentation)
Goldschmidt 2019, Barcelona, Spain “Life after the Sturtian” (oral presentation)
Goldschmidt 2018, Boston, USA “Extreme heterotrophy after Snowball Earth” (oral presentation)
28th International Meeting in Organic Geochemistry 2017, Florence, Italy “Proterozoic carbon isotope systematics are influenced by redox and community composition” (oral presentation, awarded best oral presentation)
2016 Bremen PhD days in Marine Sciences, Etelsen, Germany “On the Origins of Complex Life” (oral presentation, awarded best oral presentation)
2015 AGU Fall Meeting, San Francisco, USA ”Paleo-environmental reconstruction of ~40ka stromatolites from the ancient Lake Lahontan, Nevada, USA” (Invited oral presentation)
AbSciCon 2015, Chicago, USA “Dynamics of the pre-Sturtian carbon cycle” (oral presentation)
Student (co-)supervision
2018 – Present Jordan Kinsley (PhD candidate, The Australian National University)
2018 – Present Tharika Liyanage (PhD candidate, The Australian National University)
2018 – Present Caleb Bishop (PhD candidate, The Australian National University)
2019 – 2019 Merve Öztoprak (MSc student, University of München, Germany)
2018 – Present Claire Patterson (BSc Honours student, Australian National University)
2020 – Present Zoe Hills (BSc Honours Student, Australian National University)
Teaching
2019 – Present
EMSC3020: Geobiology and the Evolution of Life on Earth (3rd year undergraduate, Australian National University, Course awarded with the 2019 Bear McPhail Excellence in Teaching Award)
2018
EMSC2019: Geobiology and the Evolution of Life on Earth (2nd year undergraduate, The Australian National University)
Workshops and summer schools
2017
Snowball Earth Workshop, IPGP, Paris, France
2016
Building a Habitable Earth, University of Tubingen, Germany
2015
Agouron Geobiology Summerschool, University of Southern California, USA
Community support
2018 - Present
Reviewer for: Organic Geochemistry, Geobiology, Phytochemistry, and Marine Petroleum Geochemistry
2018
Co-organizer of the 20th Australian Organic Geochemistry Conference
Responsible for assembling the program and timetable, catering, booking hotels and flights for invited speakers, conference technology support and design of all visuals.
2015 – 2017
PhD Representative
Elected representative for the PhD community in all governing bodies within MARUM and GLOMAR at the University of Bremen, Germany.
Field trips and cruises
2019 Mount Kosciuszko, Snowy Mountains, Australia (participant)
2018 Australian Superbasin, Northern Territories, Australia (organizer)
2016 Petershill Formation, Bathgate Scotland (organizer)
2014 Nankoweap Butte, Grand Canyon, Arizona, USA (co-organizer)
2013 Southern Urals, Russia (participant)
2011 NiCycle (II) Cruise on the RV Pelagia (participant)
2010 NiCycle (I) Cruise on the RV Pelagia (participant)
2010 - present
2010 - present