Dr Juraj Farkas
Senior Lecturer
School of Physical Sciences
Faculty of Sciences
Eligible to supervise Masters and PhD - email supervisor to discuss availability.
My research focuses on biogeochemistry and non-traditional isotopes, and their application to solve problems relevant to earth system sciences and environmental studies.
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 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) paleo-environmental conditions and depositional settings in large sedimentary basins (i.e., Paleozoic and Proterozoic basins in Europe and Australia).
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Appointments
Date Position Institution name 2015 Senior Lecturer University of Adelaide 2012 - 2014 Lecturer Czech University of Life Sciences Prague 2010 - 2014 Researcher Czech Geological Survey 2007 - 2010 Postdoctoral Fellow Harvard University 2002 - 2007 PhD studies University of Ottawa -
Awards and Achievements
Date Type Title Institution Name Country Amount 2007 Fellowship Postdoctoral Fellowship - CIFAR — — — 2002 Scholarship International admission scholarship - University of Ottawa — — — -
Education
Date Institution name Country Title — University of Ottawa Canada PhD — Comenius University in Bratislava Slovakia MSc -
Postgraduate Training
Date Title Institution Country — Postdoctoral Training Harvard University United States -
Certifications
Date Title Institution name Country 2013 Habilitation (Docent) Czech University of Life Sciences Prague Czech Republic
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Journals
Year Citation 2020 Novak, M., Holmden, C., Farkas, J., Kram, P., Hruska, J., Curik, J., . . . Cernohous, V. (2020). Calcium and strontium isotope dynamics in three polluted forest ecosystems of the Czech Republic, Central Europe. Chemical Geology, 536, 12 pages.
2020 Yang, B., Collins, A., Cox, G., Jarrett, A., Denyszyn, S., Blades, M., . . . Glorie, S. (2020). Using Mesoproterozoic sedimentary geochemistry to reconstruct basin tectonic geography and link organic carbon productivity to nutrient flux from a Northern Australian large igneous province. Basin Research, OnlinePubl., 1-17.
Scopus1 WoS12020 Shanshan, L., Santosh, M., Farkas, J., Redaa, A., Ganguly, S., Kim, S., . . . Zack, T. (2020). Coupled U-Pb and Rb-Sr laser ablation geochronology trace Archean to Proterozoic crustal evolution in the Dharwar Craton, India. Precambrian Research, 343, 16 pages.
2020 Novak, M., Holmden, C., Farkas, J., Kram, P., & Hruska, J. (2020). Magnesium and calcium isotope systematics in a headwater catchment underlain by amphibolite: Constraints on Mg–Ca biogeochemistry in an atmospherically polluted but well-buffered spruce ecosystem (Czech Republic, Central Europe). CATENA, 193, 16 pages.
2019 Cox, G., Sansjofre, P., Blades, M., Farkas, J., & Collins, A. (2019). Dynamic interaction between basin redox and the biogeochemical nitrogen cycle in an unconventional proterozoic petroleum system. Scientific Reports, 9(1), 1-11.
Scopus4 WoS42019 Taylor, H., Kell Duivestein, I., Farkas, J., Dietzel, M., & Dosseto, A. (2019). Technical note: Lithium isotopes in dolostone as a palaeo-environmental proxy - an experimental approach. Climate of the Past, 15(2), 635-646.
2018 Yang, B., Smith, T., Collins, A., Munson, T., Schoemaker, B., Nicholls, D., . . . Glorie, S. (2018). Spatial and temporal detrital zircon age provenance of the hydrocarbon-bearing upper Roper Group, Beetaloo Sub-basin, Northern Territory, Australia. Precambrian Research, 304, 140-155.
Scopus17 WoS142018 Novak, M., Sebek, O., Chrastny, V., Hellerich, L., Andronikov, A., Martinkova, E., . . . Komarek, A. (2018). Comparison of δ53CrCr(VI) values of contaminated groundwater at two industrial sites in the eastern U.S. with contrasting availability of reducing agents. Chemical Geology, 481, 74-84.
Scopus5 WoS42018 Shalev, N., Farkas, J., Fietzke, J., Novak, M., Schussler, J., Pogge von Strandmann, P., & Toerber, P. (2018). Mg isotope inter-laboratory comparison of reference materials from earth-surface low-temperature environments. Geostandards and Geoanalytical Research, 42(2), 205-221.
Scopus14 WoS132018 Farkas, J., Fryda, J., Paulukat, C., Hathorne, E., Matouskova, S., Rohovec, J., . . . Frei, R. (2018). Chromium isotope fractionation between modern seawater and biogenic carbonates from the Great Barrier Reef, Australia: Implications for the paleo-seawater δ⁵³Cr reconstruction. Earth and Planetary Science Letters, 498, 140-151.
Scopus15 WoS132018 Shao, Y., Farkas, J., Holmden, C., Mosley, L., Kell-Duivestein, I., Izzo, C., . . . Gillanders, B. (2018). Calcium and strontium isotope systematics in the lagoon estuarine environments of South Australia: Implications for water source mixing, carbonate fluxes and fish migration. Geochimica et Cosmochimica Acta, 239, 90-108.
Scopus6 WoS62017 Novak, M., Chrastny, V., Sebek, O., Martinkova, E., Prechova, E., Curik, J., . . . Houskova, M. (2017). Chromium isotope fractionations resulting from electroplating, chromating and anodizing: implications for groundwater pollution studies. Applied Geochemistry, 80, 134-142.
Scopus5 WoS32017 Farkaš, J., Frýda, J., & Holmden, C. (2017). Corrigendum to "Calcium isotope constraints on the marine carbon cycle and CaCO3deposition during the late Silurian (Ludfordian) positive delta13Cexcursion"[Earth Planet. Sci. Lett. 451 (2016) 31-40]. Earth and Planetary Science Letters, 469, 170-171.
Scopus2 WoS22017 Novak, M., Martinkova, E., Chrastny, V., Stepanova, M., Sebek, O., Andronikov, A., . . . Farkas, J. (2017). The fate of Cr(VI) in contaminated aquifers 65 years after the first spillage of plating solutions: A δ53Cr study at four Central European sites. CATENA, 158, 371-380.
Scopus8 WoS82017 Novak, M., Kram, P., Sebek, O., Andronikov, A., Chrastny, V., Martinkova, E., . . . Farkas, J. (2017). Temporal changes in Cr fluxes and δ53Cr values in runoff from a small serpentinite catchment (Slavkov Forest, Czech Republic). Chemical Geology, 472, 22-30.
Scopus7 WoS62016 Farkas, J., Fryda, J., & Holmden, C. (2016). Calcium isotope constraints on the marine carbon cycle and CaCO₃ deposition during the late Silurian (Ludfordian) positive δ¹³C excursion. Earth and Planetary Science Letters, 451, 31-40.
Scopus19 WoS182016 Novak, M., Sipkova, A., Chrastny, V., Stepanova, M., Voldrichova, P., Veselovsky, F., . . . Krachler, M. (2016). Cu-Zn isotope constraints on the provenance of air pollution in Central Europe: using soluble and insoluble particles in snow and rime. Environmental Pollution, 218, 1135-1146.
Scopus10 WoS9 Europe PMC22014 Kram, P., Farkas, J., Pereponova, A., Nwaogu, C., Stedra, V., & Hruska, J. (2014). Bedrock weathering and stream water chemistry in felsic and ultramafic forest catchments. Procedia: Earth and Planetary Science, 10, 52-55.
WoS12014 Voldrichova, P., Chrastny, V., Sipkova, A., Farkas, J., Novak, M., Stepanova, M., . . . Pacherova, P. (2014). Zinc isotope systematics in snow and ice accretions in Central European mountains. Chemical Geology, 388, 130-141.
Scopus13 WoS92014 Novak, M., Chrastny, V., Cadkova, E., Farkas, J., Bullen, T., Tylcer, J., . . . Hellerich, L. (2014). Common occurrence of a positive δ⁵³Cr shift in Central European waters contaminated by geogenic/industrial chromium relative to source values. Environmental Science and Technology, 48(11), 6089-6096.
Scopus35 WoS32 Europe PMC42014 Vollstaedt, H., Eisenhauer, A., Wallmann, K., Böhm, F., Fietzke, J., Liebetrau, V., . . . Veizer, J. (2014). The Phanerozoic δ⁸⁸⁄⁸⁶Sr record of seawater: new constraints on past changes in oceanic carbonate fluxes. Geochimica et Cosmochimica Acta, 128, 249-265.
Scopus48 WoS472014 Chrastný, V., Rohovec, J., Čadková, E., Pašava, J., Farkaš, J., & Novák, M. (2014). A new method for low-temperature decomposition of chromites and dichromium trioxide using bromic acid evaluated by chromium isotope measurements. Geostandards and Geoanalytical Research, 38(1), 103-110.
Scopus11 WoS112013 Farkaš, J., Chrastný, V., Novák, M., Čadkova, E., Pašava, J., Chakrabarti, R., . . . Bullen, T. (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, 123, 74-92.
Scopus83 WoS762012 Huang, S., Farkaš, J., Yu, G., Petaev, M., & Jacobsen, S. (2012). Calcium isotopic ratios and rare earth element abundances in refractory inclusions from the Allende CV3 chondrite. Geochimica et Cosmochimica Acta, 77, 252-265.
Scopus59 WoS542012 Chrastný, V., Vaněk, A., Komárek, M., Farkaš, J., Drábek, O., Vokurková, P., & 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, 209-210, 40-47.
Scopus9 WoS92012 Chrastný, V., Komárek, M., Procházka, J., Pechar, L., Vaněk, A., Penížek, V., & Farkaš, J. (2012). 50 years of different landscape management influencing retention of metals in soils. Journal of Geochemical Exploration, 115, 59-68.
Scopus9 WoS82011 Farkaš, J., Déjeant, A., Novák, M., & Jacobsen, S. (2011). Calcium isotope constraints on the uptake and sources of Ca<sup>2+</sup> in a base-poor forest: A new concept of combining stable (δ44/42Ca) and radiogenic (εCa) signals. Geochimica et Cosmochimica Acta, 75(22), 7031-7046.
Scopus49 WoS452011 Huang, S., Farkaš, J., & Jacobsen, S. (2011). Stable calcium isotopic compositions of Hawaiian shield lavas: Evidence for recycling of ancient marine carbonates into the mantle. Geochimica et Cosmochimica Acta, 75(17), 4987-4997.
Scopus99 WoS862010 Huang, S., Farkaš, J., & Jacobsen, S. (2010). Calcium isotopic fractionation between clinopyroxene and orthopyroxene from mantle peridotites. Earth and Planetary Science Letters, 292(3-4), 337-344.
Scopus94 WoS812007 Farkaš, J., Böhm, F., Wallmann, K., Blenkinsop, J., Eisenhauer, A., van Geldern, R., . . . Veizer, J. (2007). Calcium isotope record of Phanerozoic oceans: Implications for chemical evolution of seawater and its causative mechanisms. Geochimica et Cosmochimica Acta, 71(21), 5117-5134.
Scopus159 WoS1482007 Farkaš, J., Buhl, D., Blenkinsop, J., & Veizer, J. (2007). Evolution of the oceanic calcium cycle during the late Mesozoic: Evidence from δ<sup>44/40</sup>Ca of marine skeletal carbonates. Earth and Planetary Science Letters, 253(1-2), 96-111.
Scopus81 WoS762005 Tomašových, A., & Farkaš, J. (2005). Cathodoluminescence of Late Triassic terebratulid brachiopods: Implications for growth patterns. Palaeogeography, Palaeoclimatology, Palaeoecology, 216(3-4), 215-233.
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Book Chapters
Year Citation 2016 Farkas, J. (2016). Calcium isotopes. In W. White (Ed.), Encyclopedia of geochemistry: a comprehensive reference source on the chemistry of the earth (pp. 181-186). Springer.
2013 Farkaš, J., Chakrabarti, R., Jacobsen, S., Kump, L., & Melezhik, V. (2013). Ca and mg isotopes in sedimentary carbonates. In V. Melezhik, L. Kump, A. Fallick, H. Strauss, E. Hanski, A. Prave, & A. Lepland (Eds.), Reading the Archive of Earth's Oxygenation (Vol. 3, pp. 1468-1482). Springer.
Scopus42012 Farkas, Juraj., Chakrabarti, Ramananda., Jacobsen, Stein., Kump, Lee., & Melezhik, Victor. (2012). Ca and Mg Isotopes in Sedimentary Carbonates. In Melezhik, Victor, A. Prave, E. Hanski, A. Fallick, A. Lepland, Kump, Lee, & H. Strauss (Eds.), Reading the Archive of Earth’s Oxygenation: Volume 3: Global Events and the Fennoscandian Arctic Russia - Drilling Early Earth Project (pp. 1468-1482). Springer Science & Business Media. -
Conference Papers
Year Citation 2018 Farkas, J., Fryda, J., & Holmden, C. (2018). Origins of a global marine late Silurian C isotope excursion: Insight from stable metal isotopes (Ca, Sr, Ca) from Gotland and Prague Basin. In Goldschmidt Abstracts (pp. 679). Boston. 2018 Farkas, J., Love, A., Verdel, C., & Eisenhauer, A. (2018). Links between silicate-carbonate weathering, climate and the origin of Neoproterozoic cap carbonates: New constraints from stable and radiogenic Sr isotope records from the Amadeus Basin. In EGU Conference Abstracts. Vienna, Austria: Copernicus. 2018 Farkas, J., Bullen, M., Cox, G., Collins, A., Giuliano, W., Menpes, S., . . . Smith, B. (2018). Isotope Constraints on Intra-Basin Correlation and Depositional Settings of the Mid-Proterozoic Carbonates and Organic-Rich Shales in the Greater McArthur Basin, Northern Territory, Australia. In ASEG Extended Abstracts Vol. 2018 (pp. 1-6). Sydney, Australia: CSIRO.
2017 Farkas, J., Fryda, J., & Holmden, C. (2017). Testing the Late Silurian Seawater ‘carbonate
hypersaturation’ with Stable Ca and Sr Isotope. In Goldschmidt Conference Abstracts (pp. 1109). Paris, France.2015 Farkas, J., Novak, M., & Holmden, C. (2015). Ca and Mg Isotope Systematics in Acidified Forests from the Contrasting Monolithologic Czech Catchments. In Goldschmidt Conference Abstracts. Prague, Czech Republic. 2013 Farkas, J., Brand, U., & Tomasovych, A. (2013). Magnesium Isotope Composition of Globally Distributed Modern Brachiopods: Implications for Paleo-Seawater δ26Mg Reconstructions. In Goldschmidt Conference Abstracts (pp. 1065). Florence, Italy. 2009 Vollstaedt, H., Eisenhauer, A., Krabbenhoeft, A., Farkas, J., & Veizer, J. (2009). delta(88)/Sr-86 record of phanerozoic marine carbonates. In GEOCHIMICA ET COSMOCHIMICA ACTA Vol. 73 (pp. A1393). Davos, SWITZERLAND: PERGAMON-ELSEVIER SCIENCE LTD. 2009 Farkas, J., Chakrabarti, R., Melezhik, V., Kump, L., Medvedev, P., & Jacobsen, S. (2009). Ca and Mg isotope variations of Paleoproterozoic (similar to 2 Ga) carbonates: Implications for positive delta C-13 event. In GEOCHIMICA ET COSMOCHIMICA ACTA Vol. 73 (pp. A354). Davos, SWITZERLAND: PERGAMON-ELSEVIER SCIENCE LTD. 2008 Farkas, J., Jacobsen, S. B., & Veizer, J. (2008). A multi-proxy perspective on isotope evolution of Phanerozoic seawater. In GEOCHIMICA ET COSMOCHIMICA ACTA Vol. 72 (pp. A256). Vancouver, CANADA: PERGAMON-ELSEVIER SCIENCE LTD. 2007 Boehm, F., Amini, M., Blenkinsop, J., Buhl, D., Eisenhauer, A., Farkas, J., . . . Wallmann, K. (2007). Calcium isotope budget of the Phanerozoic ocean. In GEOCHIMICA ET COSMOCHIMICA ACTA Vol. 71 (pp. A103). Cologne, GERMANY: PERGAMON-ELSEVIER SCIENCE LTD. -
Conference Items
Year Citation 2018 Farkas, J., Collins, A., Sarakhi, H., Chakrabatri, R., Reeda, A., Loehr, S., . . . Zack, T. (2018). Towards improved stratigraphy of Proterozoic Basins: Telling the time from a single glauconite grain based on in-situ Rb/Sr dating. Poster session presented at the meeting of AGCC 2018 abstract volume. Adelaide, Australia: Australian Geoscience Council. 2018 Farkas, J., Cox, G., Blades, M., Gilbert, S., Wade, B., Collins, A., . . . Fryer, F. (2018). In-situ Rb-Sr dating of authigenic clays from soils and sediments: Potential and limitations. Poster session presented at the meeting of Geoanalysis 2018: scientific program and abstracts. Sydney, Australia: International Association of Geoanalytics. 2018 Redaa, A., Farkas, J., Gilbert, S., Zack, T., Fryer, F., Wade, B., & Collins, A. (2018). Testing the limits of in-situ Rb-Sr dating of igneous minerals by LA-ICP-QQQ. Poster session presented at the meeting of Geoanalysis 2018: scientific program and abstracts. Sydney, Australia: International Association of Geoanalytics. 2016 Taylor, H., Farkas, J., Corrick, A. J., & Dosseto, A. (2016). Thawing Earth: was there a pulse in silicate weathering at the end of the Marinoan glaciation?. Poster session presented at the meeting of Australian Earth Sciences Convention (AESC) 2016. Adelaide. 2014 Magna, T., Zak, K., Farkas, J., Trubac, J., Rodovska, Z., Simecek, M., . . . Mizera, J. (2014). LITHIUM AND MAGNESIUM ISOTOPES IN SEDIMENTS OF THE RIES AREA: CONSTRAINTS ON THE SOURCES OF MOLDAVITE TEKTITES. Poster session presented at the meeting of METEORITICS & PLANETARY SCIENCE. Casablanca, MOROCCO: WILEY.
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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 Seawater, Funded 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.
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.
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Current Higher Degree by Research Supervision (University of Adelaide)
Date Role Research Topic Program Degree Type Student Load Student Name 2019 Co-Supervisor Shale Geochemistry and Geochronology of the Greater McArthur Basin Doctor of Philosophy Doctorate Full Time Mr Darwinaji Subarkah 2019 Co-Supervisor Paleoenvironments of the Tonian-Cryogenian of the Adelaide Basin Doctor of Philosophy Doctorate Full Time Miss Georgina Mitford Virgo 2017 Co-Supervisor Novel Geochemical and Geochronological tools for Cu-Au mineralization Doctor of Philosophy Doctorate Full Time Mr Ahmad Abdullah A Redaa 2017 Principal Supervisor Metal Isotope Tracers to Reconstruct Hydrological and Climate History of the Coorong-Murray Mouth System Doctor of Philosophy Doctorate Full Time Miss Yuexiao Shao 2017 Co-Supervisor The Effect of Sea Level Rise on the Geochemistry of Coastal Soils and Shallow Groundwater Doctor of Philosophy Doctorate Part Time Ms Emily Ruth Leyden 2017 Co-Supervisor Hydrologic-Isotopic Modelling for Palaeoclimate Application Doctor of Philosophy Doctorate Full Time Martin James Ankor -
Past Higher Degree by Research Supervision (University of Adelaide)
Date Role Research Topic Program Degree Type Student Load Student Name 2018 - 2019 Co-Supervisor Tectonic geography of Mesoproterozoic Wilton package, north Australia Doctor of Philosophy Doctorate Full Time Mr Bo Yang
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