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

 

3 (of 3 published available) for az29 with keyword WATER COLUMN clear keyword filter. (source: University of St Andrews PURE)
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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
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
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

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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