Dr Aubrey Zerkle

Dr Aubrey Zerkle
Reader; Director of Postgraduate Research


 

I am a biogeochemist and a PI of the Peter James Clark Centre for Philosophical Geobiology. My primary interests are in the early Earth and extraterrestrial environments.

Research in my group focuses on understanding the co-evolution of life with planetary environments over geologic timescales. We utilize a multi-disciplinary approach, including stable isotope geochemistry, microbiology, trace element and nutrient analyses, to examine these interactions and possible feedbacks in modern and paleo-environments. Current research projects revolve around three broad areas:

1. Investigating feedbacks between the geosphere, atmosphere, and biosphere during important transitions in Earth history, including the Great Oxidation Event, Punctuated Haze Events, and mass extinction events;

2. Examining biogeochemical cycling in extreme environments that act as modern "analogues" to ancient Earth and exoplanetary systems (e.g., euxinic and acidic environments);

3. Establishing and evaluating stable isotope biosignatures for microbial activity, on Earth and beyond.

source: symbiosis

 

13 (of 13 published available) for az29 with keyword geochemistry clear keyword filter. (source: University of St Andrews PURE)
Please click title of any item for full details

Ammonium availability in the Late Archean nitrogen cycle Jie Yang, Chris Junium, Nathalie Grassineau, Euan Nisbet, Gareth Izon, Tony Martin, Aubrey Lea Zerkle
Nature Geoscience vol.12 pp.553-557
Biogeodynamics Aubrey Lea Zerkle
Philosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences 2018 vol.376
Multiple sulphur isotope records tracking basinal and global processes in the 1.98 Ga Zaonega Formation, NW Russia Kart Paiste, Aivo Lepland, Aubrey Lea Zerkle, Kalle Kirsimae, Gareth Izon, Neel Patel, Fiona McLean, T. Kreitsmann, K Mand, T Bui, A Romashkin, D Rychanchik, Tony Prave
Chemical Geology 2018 vol.499 pp.151-164
Origin and evolution of the atmospheres of early Venus, Earth and Mars Helmut Lammer, Aubrey Lea Zerkle, Stefanie Gebauer, Nicola Tosi, Lena Noack, Manuel Scherf, Pilat-Lohinger Elke, Manuel Gudel, John Lee Grenfell, Mareike Godolt, Athanasia Nikolaou
Astronomy and Astrophysics Review 2018 vol.26
Two-billion-year-old evaporites capture Earth's great oxidation Clara Bl├Ąttler, Mark Claire, Tony Prave, Aubrey Lea Zerkle, Matthew Robert Warke
Science 2018
Biological regulation of atmospheric chemistry en route to planetary oxygenation Gareth Izon, Aubrey Lea Zerkle, Kenneth Williford, James Farquhar, Simon Poulton, Mark Claire
Proceedings of the National Academy of Sciences of the United States of America 2017 vol.114 pp.2571-2579
High-frequency fluctuations in redox conditions during the latest Permian mass extinction Aubrey Lea Zerkle, Mark Claire, Gareth Izon, Christopher Junium, Richard Twitchett
Palaeogeography, Palaeoclimatology, Palaeoecology 2017 vol.485 pp.210-223
Onset of the aerobic nitrogen cycle during the Great Oxidation Event Aubrey Lea Zerkle, Simon W Poulton, Robert J Newton, Mark Claire, Andrey Bekker, Christopher K Junium
Nature 2017 vol.542 pp.465-467
Sulphur cycling in a Neoarchean microbial mat Nicolette R Meyer, Aubrey Lea Zerkle, David A Fike
Geobiology 2017 vol.15 pp.353-365
The geobiological nitrogen cycle Aubrey Lea Zerkle, Sami Mikhail
Geobiology 2017 vol.15 pp.343-352
Sulfur isotope values in the sulfidic Frasassi cave system, central Italy Aubrey Lea Zerkle, Daniel Jones, James Farquhar, Jennifer Macalady
Geochimica et Cosmochimica Acta 2016 vol.173 pp.373-386
Emerging biogeochemical views of Earth's ancient microbial worlds Timothy Lyons, David Fike, Aubrey Lea Zerkle
Elements 2015 vol.11 pp.415-421
Multiple oscillations in Neoarchaean atmospheric chemistry Gareth Izon, Aubrey Lea Zerkle, Yadviga Zhelezinskaya, James Farquhar, Robert J. Newton, Simon W. Poulton, Jennifer L. Eigenbrode, Mark Claire
Earth and Planetary Science Letters 2015 vol.431 pp.264-273

Contact Details:

Dr Aubrey Zerkle
Irvine Building
University of St Andrews
North Street
St Andrews
KY16 9AL
Fife
UK

tel: +44 01334 464949
fax: +44 01334 463949
room: 423 Irvine (office), D2-D4 Bute (labs)
email: az29@st-andrews.ac.uk

Related:

research@st-andrews

Scottish Oceans Institute
School of Earth and Environmental Sciences
STAIG
Centre for Exoplanet Science

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