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Dr Juraj Farkas

Telephone +61 8 8313 5519
Position Lecturer
Email juraj.farkas@adelaide.edu.au
Fax +61 8 8313 4380
Building Mawson Laboratories
Floor/Room B 08
Campus North Terrace
Org Unit Earth Sciences

To link to this page, please use the following URL:
http://www.adelaide.edu.au/directory/juraj.farkas

Biography/ Background

2015 – Present: Lecturer at the University of Adelaide, Department of Earth Sciences, Adelaide, Australia

 

2012 – 2014: Lecturer at Czech University of Life Sciences, Department of Environmental Geosciences, Prague, Czech Republic (adjunct status at present).

 

2010 – 2014: Research Scientist at Czech Geological Survey, Department of Geochemistry, Prague, Czech Republic (adjunct status at present).

 

2007 - 2010: Postdoctoral Fellow (Postdoc), Harvard University, Department of Earth and Planetary Sciences, Cambridge, USA (supervisors: Profs. Stein B. Jacobsen and Lee Kump)

 

2002 – 2007: Doctoral Degree (PhD), University of Ottawa, Department of Earth Sciences, Ottawa, Canada (supervisors: Profs. Jan Veizer and John Blenkinsop)

 

1997 – 2002: Master Degree (MSc), Commenius University, Department of Geology, Bratislava, Slovakia (supervisor: Dr. Jan Kral)

Awards & Achievements

2007 - 2010: Postdoctoral Fellowship, funded by the Canadian Institute for Advanced Research (CIFAR) under the Earth System Evolution Program (ESEP) (www.cifar.ca/earth-system-evolution)

 

2006:   Recognition of Excellence for Academic Year 2004-2005, awarded by the Faculty of Science at University of Ottawa, Canada

 

2002 - 2007:  International Admission Scholarship, awarded by the University of Ottawa to cover international tuition for Doctoral (PhD) studies in the field of geosciences

 

Teaching Interests

Geochemistry II (Semester 2) - This course focuses on the chemistry of the natural world and the chemical evolution of the Earth and other planets over geological time. It covers practical and theoretical geochemistry, with an emphasis on how chemical principles are used to study problems relevant to Earth and Environmental Sciences

Earth System History III (Semester 2) - This course studies the fundamental geological and biological processes comprising the Earth System. It focuses on the interactions between the biosphere and the geosphere as the Earth System evolved as recorded in the geochemical and sedimentary record.

Earth's Interior I (Semester 2) - This course provides a global perspective of Planet Earth and the dynamic processes that have modified it over its 4 billion-year history. We explore Earth's place in space and time and examine the operation of its internal chemical and physical processes. Fundamental concepts are developed: the formation and structure of the Earth; the driving forces of plate tectonics and continental drift; earthquakes and volcanoes, the formation and identification of geological materials, mountain building and rock deformation; the development of the geologic timescale.

Supervised Students: 

William Giuliano (2016 Honours Project - University of Adelaide)

Mandy Shao (2016 Honours Project - University of Adelaide)

Isaac Kell-Duivestein (2015 Honours Project - University of Adelaide)

Philip Toerber (2015-2018 PhD Project - Czech University of Life Science / University of Adelaide)

Anna Pereponova (2014 Master Project - Czech University of Life Science)

Chukwudi Nwaogu (2014 Master Project - Czech University of Life Science)

Adriene Dejeant (2010 Master Project - Harvard University)  

Research Interests

My research focuses on biogeochemistry and non-traditional isotopes, and their application to solve problems relevant to earth system sciences and environmental studies. Specifically, I am interested in the stable isotope systems of alkaline earth metals (e.g., Ca, Mg, Sr) and redox-sensitive elements, and how these new isotope tracers (i.e., δ44Ca, δ26Mg, δ88Sr and δ53Cr) can be used to further constrain: (1) the isotope evolution of seawater over geologic time, (2) diagenetic processes in marine carbonates, (3) material cycling in the Earth’s outer shell, and (4) the sources and biogeochemical pathways of major base cations (Ca and Mg) in terrestrial ecosystems during weathering and biological uptake.

Research Funding

2017 – 2019 (as co-PI): Tectonic Geography of the World's Oldest Petroleum Play, McArthur Basin: Research Theme on "New Isotope Proxies for Past Depositional Environments", Collaborative 'Academia-Industry' Project, Funded by Australian Research Council - ARC Linkage Scheme

 

2017 – 2019 (as co-PI): Calcium and Oxygen Isotope Constraints on the Origin of Carbon Isotope Anomalies: Testing the Model of Global "Carbonate Hypersaturation" of Silurian SeawaterFunded by Czech Science Foundation (GACR)

 

2015 – 2018 (as co-PI): BASE-LiNE Earth: Brachiopods as Sensitive Tracers of Global Marine Environment: Insights from alkali and alkaline earth metal element ratios and isotope systems (www.baseline-earth.eu), Funded by European Commission (Marrie Curie Actions ITN-ETN: European Training Network)

 

2016 – 2017 (as PI): New laboratory facility for trace-metal isotope applications, Funded by DVCR - Uni of Adelaide Infrastructure Scheme - New Equipment 

 

2015 – 2016 (as PI): Development of new method for chromium isotope analysis, Funded by the Environmet Institute - University of Adelaide (www.adelaide.edu.au/environment/)

 

2015 – 2017 (as co-PI): Tracing the continental weathering during the mid-Paleozoic with Cr isotopes: Implications for nutrient fluxes and their effects on marine evolution, Funded by Czech Science Foundation (GACR)

 

2012 – 2014 (as PI): Magnesium isotope record of Phanerozoic marine carbonates: Implications for chemical evolution of seawater and the formation of massive dolomites, Funded by Czech Science Foundation (GACR)

 

2012 – 2015 (as co-PI): Moldavite formation: unconventional components and processes indicated by isotopic fractionation, Funded by Czech Science Foundation (GACR).

 

2011 – 2014 (as co-PI): Chromium isotopes as an indicator of natural attenuation of water pollution: Introducing mass-spectrometry based technology, Funded by Technological Agency of Czech Republic (TACR).

 

2009 – 2010 (as co-PI): Recycled Carbonate-Rich Sediment in the Hawaiian Plume: Evidence from Calcium Isotopes, Funded by National Science Foundation (NSF) under the Early Grant for Exploratory Research (EaGER) program. 

 

2007 – 2008 (as PI): The application of calcium isotopes to study diagenetic processes in carbonate sedimentary systems, Funded by GDL Foundation.

 

2003 – 2004 (as PI): Reconstruction of Calcium isotopic evolution of seawater for Cretaceous and Jurassic, and Tentative extension of the calcium isotopic evolution curve of seawater to the Precambrian, Funded by Geological Society of America – GCA Reseach Grants.

Publications

Farkaš J., Fryda J., and Holmden Ch (2016) Calcium isotope constraints on marine carbon cycle and CaCO3 deposition during the late Silurian (Ludfordian) positive d13C excursion, Earth and Planetary Science Letter. Vol. 451, p. 31-40, DOI: 10.1016/j.epsl.2016.06.038

 

Farkaš J. (2016) Calcium isotopes, (book chapter) in Earth Science Series, Encyclopedia of Geochemistry, edited by W.M. White, Springer, DOI: 10.1007/978-3-319-39193-9_237-1

 

Novák M., Sipkova A., Chrastný V., Stepanova M., Voldrichova P., Veselovsky F., Prechova E., Blaha V., Curik J., Farkaš J. et al. (2016) Cu-Zn isotope constraints on the provennance of air pollution in Central Europe: Using soluble and insoluble particles in snow and rime, Environmental Pollution (in press)

 

Stedra, V., Krám P., Farkaš J. (2015) Petrology and whole-rock geochemistry of metabasites from borehole cores in Slavkov Forest, Bohemia, Geoscience Research Reports, p. 103-108, ISBN: 978-80-7075-884-7

 

Krám P., Farkaš J., Pereponova A., Nwaogu Ch., Štedra V., and Hruška J. (2014) Bedrock weathering and stream water chemistry in felsic and ultramafic forest catchments, Procedia Earth and Planetary Science, Vol. 10, 52-55, DOI: 10.1016/j.proeps.2014.08.010

 

Voldrichova P., Chrastny V., Sipkova A., Farkaš J., Novak M., Stepanova M., Krachler M., Veselovsky F., Blaha V., Prechova E., Komarek A., Bohdalkova L., Curik J., Mikova J., Erbanova L., and Pacherova P. (2014) Zinc isotope systematics in snow and ice accretions in Central European mountains, Chemical Geology, Vol. 388, 130-141, DOI: 10.1016/j.chemgeo.2014.09.008

 

Novák M., Chrastný V., Čadkova Farkaš J., Bullen T.D. et al. (2014) Common occurence of a positive δ53Cr shift in central European waters contaminated by geogenic/industrial chromium relative to source values, Environmental Science & Technology, Vol. 48, 6089-6096, DOI: 10.1021/es405615h

 

Farkaš J., Chrastný V., Novák M., Čadkova E., Pašava J., Chakrabati R., Jacobsen S.B., Ackerman L., Bullen T.D. (2013) Chromium isotope variations (δ53/52Cr) in mantle-derived sources and their weathering products: Implications for environmental studies and the evolution of δ53/52Cr in the Earth’s mantle over geologic time. Geochimica et Cosmochimica Acta, Vol. 123, 74-94.

 

Farkaš, J., Chakrabarti, R., Jacobsen, S., Kump, L., Melezhik, V. (2013): Calcium and Magnesium Isotopes in Sedimentary Carbonates. In Melezhik V., Kump L., Fallick A., Strauss H., Hanski E., Prave, A., Lepland: Reading The Archive of Earth's Oxygenation. Vol.3 Global Events and the Fennoscandian Arctic Russia - Drilling Early Earth Project, s. 1468-1482., Springer (Frontiers in Earth Sciences). Berlin. ISBN 978-3-642-29669-7.

 

Vollstaedt H., Eisenhauer A., Wallmann K., Böhm F., Fietzke J., Liebetrau V., Krabbenhöft A., Farkaš J., Tomašových A., Raddatza J., and Veizer J. (2013) The Phanerozoic δ88/86Sr Record of Seawater: New Constraints on Past Changes in Oceanic Carbonate Fluxes, Geochimica et Cosmochimica Acta, Vol. 128, p. 249-265.

 

Kump, L., Kuznetsov, A., Gorokohov, I., Melezhik V., Farkaš, J. et al. (2013) Chemical Characteristics of Sediments and Seawater. In: Reading The Archive of Earth's Oxygenation. Vol. 3 Global Events and the Fennoscandian Arctic Russia - Drilling Early Earth Project, p. 1457-1515, Springer (Frontiers in Earth Sciences). Berlin. ISBN 978-3-642-29669-7.

 

Chrastný V., Rohovec J., Čadkova E., Pašava J., Farkaš J. and Novák M., (2013) A New Method for Low-Temperature Decomposition of Chromites and Dichromium Trioxide using Bromic Acid Evaluated by Chromium Isotope Measurements, Geostandards and Geoanalytical Research, DOI: 10.1111/j.1751-908X.2013.00229.x

 

Huang S., Farkaš J., Yu G., Petaev M.I., and Jacobsen S.B. (2012) Calcium isotopic ratios and rare earth element abundances in refractory inclusions from the Allende CV3 chondrite; Geochimica et Cosmochimica Acta, Volume 77, p. 252-265.

 

Chrastný V., Vaněk A., Komárek M., Farkaš J., Drábek O., Vokurková P. and Němcová J. (2012) Incubation of air-pollution-control residues from secondary Pb smelter in deciduous and coniferous organic soil horizons: Leachability of lead, cadmium and zinc, Journal of Hazardous Materials, Vol. 209–210, p. 40-47.

 

Farkaš J., Dejeant A., Novak M., and Jacobsen S.B (2011) Calcium isotope constraints on the uptake and sources of Ca2+ in a base-poor forest: A new concept of combining stable (δ 44/42Ca) and radiogenic (eCa) signal, Geochimica et Cosomochimica Acta. Vol. 75, p. 7031-7046.

 

Huang S., Farkaš J., Jacobsen S.B (2011) Stable calcium isotopic compositions of Hawaiian shield lavas: Evidence for recycling of ancient carbonates into the mantle. Geochimica et Cosmochimica Acta. Vol. 75, p. 4987-4997.

 

Huang S., Farkaš J. and Jacobsen S. (2010) Calcium Isotopic Fractionation between Clinopyroxene and Orthopyroxene from Mantle Peridotites, Earth and Planetary Science. Vol. 292, p. 337-344.

 

Farkaš J., Böhm F., Wallmann K., Blenkinsop J., Eisenhauer A., van Geldern R., Munnecke A., Voigt S. and Veizer J. (2007) Calcium isotope record of Phanerozoic oceans: Implications for chemical evolution of seawater and its causative mechanisms, Geochimica et Cosmochimica Acta. Vol. 71, p. 5117-5134.

 

Farkaš J., Buhl D., Blenkinsop J. and Veizer J. (2007) Evolution of the Oceanic Calcium Cycle during the Late Mesozoic: Evidence from δ44/40Ca of Marine Skeletal Carbonates, Earth and Planetary Science Letters. Vol. 253, p. 96-111.

 

Tomašovych A. and Farkaš J. (2005) Cathodoluminescence of Late Triassic Terebratulid Brachiopods: Implications for Growth Patterns, Palaeogeography, Palaeoclimatology, Palaeoecology. Vol. 216, p. 215-233.

 

Community Engagement

2016: Convener of the session "Non-traditional isotopes" and "Sprigg Symposium" at AESC 2016, Adelaide, Australia

2014: Chair of the session “Trace Element and Metal Biogeochemistry” at the Biogeomon 2014 Conference (Bayreuth, Germany),

2013: Chair and organizer of the theme “Evolution of Earth’s Environment” at the Goldschmidt 2013 Conference (Florence, Italy), and a co-convener of the session “Seawater Geochemical Evolution: Application of Elemental and Isotopic Proxies”.

2011: Convener of a session on “General Geochemistry” for the Goldschmidt 2011 Conference (Prague, Czech Republic)

Reviewer for: Science Magazine, Proceedings of the National Academy of Science (PNAS), Geology, Earth and Planetary Science Letters (EPSL), Geochimica et Cosmochimica Acta (GCA), Chemical Geology, Biogeosciences, Geostandards and Geoanalytical Research, Applied Geochemistry, Plant and Soil; and for the national granting agencies: National Science Foundation (NSF), and the Netherlands Organization for Scientific Research (NWO).

Entry last updated: Friday, 24 Feb 2017

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