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

 

4 (of 4 published available) for az29 with keyword Isotopes clear keyword filter. (source: University of St Andrews PURE)
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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
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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