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

 

5 (of 5 published available) for az29 with keyword OXYGENATION 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
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
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
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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