Mr Darwinaji Subarkah
ARC Grant-Funded Postdoctoral Research Fellow
School of Physics, Chemistry and Earth Sciences
College of Science
Eligible to supervise Masters and PhD (as Co-Supervisor) - email supervisor to discuss availability.
I am a geologist with a background in industry, research, and academia. My work focuses on ancient sedimentary systems with potential for base-metal mineralisation and energy resources. I use novel and traditional geochemical and geochronological tools to understand when basins form, what environments they formed in, and whether or not they have been altered afterward. By constraining these processes, I can help better define what controls the accumulation of sediment-hosted economic targets. The tools I specialise in include new in situ applications of the Rb-Sr and U-Pb methods, stable isotopic systems (eg. C, Ca, and Sr), and redox-sensitive trace element proxies. I was awarded my Bachelor of Science majoring in Geology and Geophysics at the University of Adelaide in 2018 with First Class Honours. I began my career as a geologist working on vein-hosted gold systems and iron-oxide-copper-gold deposits in the Northern Territory and South Australia, respectively. I returned to the University of Adelaide to undertake a PhD in Earth Sciences, completing my thesis in 2023. My PhD research was on the sedimentary geochemistry and geochronology of the Proterozoic greater McArthur Basin, northern Australia.
| Date | Position | Institution name |
|---|---|---|
| 2022 - ongoing | Postdoctoral Researcher | University of Adelaide |
| 2022 - 2023 | Contractor | OZ Minerals |
| 2018 - 2019 | Geologist | NT Mining Operations |
| Date | Type | Title | Institution Name | Country | Amount |
|---|---|---|---|---|---|
| 2024 | Award | Chris Powell Medal | Geological Society of Australia | Australia | - |
| 2024 | Award | International Geological Congress Award | Australian Academy of Science | Australia | - |
| 2022 | Award | Best Student Presentation | Geological Society of Australia | Australia | - |
| 2022 | Research Award | Petroleum Exploration Society of Australia Best Student Paper | Petroleum Exploration Society of Australia | Australia | - |
| 2022 | Research Award | Central Australian Basins Symposium Best Student Presentation | Petroleum Exploration Society of Australia | Australia | - |
| 2021 | Scholarship | Eric Rudd Memorial Scholarship | University of Adelaide | Australia | - |
| 2021 | Research Award | Petroleum Exploration Society of Australia Best Student Paper | Petroleum Exploration Society of Australia | Australia | - |
| 2015 | Scholarship | Adelaide International Undergraduate Scholarship | University of Adelaide | Australia | - |
| 2014 | Achievement | World Scholar's Cup Gold Medallist | World Scholar's Cup | United States | - |
| 2012 | Award | Duke of Edinburgh's International Award | Duke of Edinburgh | Qatar | - |
| Language | Competency |
|---|---|
| English | Can read, write, speak, understand spoken and peer review |
| Indonesian | Can read, write, speak, understand spoken and peer review |
| Date | Institution name | Country | Title |
|---|---|---|---|
| 2015 - 2018 | University of Adelaide | Australia | Bachelor of Science (Honours) |
| Year | Citation |
|---|---|
| 2025 | Loyola, C., Farkaš, J., Collins, A. S., Gilbert, S. E., Verdel, C., Löhr, S. C., . . . Haines, P. W. (2025). In situ Rb–Sr dating and REE analysis of glauconites and detrital feldspars from the Ediacaran/Cambrian strata: Centralian and Adelaide Superbasins, Australia. Precambrian Research, 427, 12 pages. Scopus1 WoS1 |
| 2025 | Shao, Z., Farkaš, J., Glorie, S., Collins, A. S., Gilbert, S. E., & Subarkah, D. (2025). Dating of marine authigenic minerals via in situ Rb[sbnd]Sr, U[sbnd]Pb, and Lu–Hf: A case study from the Georgina Basin, Australia. Chemical Geology, 695, 16 pages. |
| 2025 | Shao, Z., Farkaš, J., Glorie, S., Collins, A. S., Gilbert, S. E., & Subarkah, D. (2025). Erratum to < Erratum to <“Dating of marine authigenic minerals via in situ Rb–Sr, U–Pb, and Lu–Hf: A case study from the Georgina Basin, Australia>< Chemical Geology 695 (2025) 123042>. Chemical Geology, 695, 123063. |
| 2025 | Subarkah, D., Blades, M. L., Collins, A. S., Farkaš, J., & Virgo, G. M. (2025). Intermittent connectivity determines the oxygenation in the Favenc and lower Wilton packages of the greater McArthur Basin, northern Australia. Australian Journal of Earth Sciences, 1-20. |
| 2024 | Subarkah, D., Nixon, A. L., Gilbert, S. E., Collins, A. S., Blades, M. L., Simpson, A., . . . Farkaš, J. (2024). Double dating sedimentary sequences using new applications of in-situ laser ablation analysis. Lithos, 480-481, 107649-1-107649-13. Scopus7 WoS8 |
| 2024 | Hall, A. S., Holford, S., Schofield, N., Bunch, M., Collins, A. S., Blades, M. L., & Subarkah, D. (2024). The Derim Derim Dolerite, greater McArthur Basin, Australia: Using subsurface data to characterise a mesoproterozoic magma plumbing system. Marine and Petroleum Geology, 169, 107072. Scopus1 |
| 2024 | Hall, A. S., Holford, S., Schofield, N., Bunch, M., Collins, A. S., Blades, M. L., & Subarkah, D. (2024). Corrigendum to ‘The Derim Derim Dolerite, greater McArthur Basin, Australia: Using subsurface data to characterise a Mesoproterozoic magma plumbing system’ [Mar. Petrol. Geol., 169 (2024)] (Marine and Petroleum Geology (2024) 169, (S0264817224003842), (10.1016/j.marpetgeo.2024.107072)). Marine and Petroleum Geology, 170, 1 page. |
| 2024 | Löhr, S. C., Khazaie, E., Farkas, J., Baldermann, A., Gilbert, S., Maas, R., . . . Collins, A. S. (2024). Origin and Significance of Age Variability in the Glauconite Reference Material GL-O: Implications for In Situ Rb-Sr Geochronology. Geostandards and Geoanalytical Research, 49(1), 197-216. Scopus3 WoS3 |
| 2023 | Subarkah, D., Collins, A. S., Farkaš, J., Blades, M. L., Gilbert, S. E., Jarrett, A. J. M., . . . Giuliano, W. (2023). Characterising the economic Proterozoic Glyde Package of the greater McArthur Basin, northern Australia. Ore Geology Reviews, 158, 105499-1-105499-17. Scopus6 WoS6 |
| 2023 | Lloyd, J. C., Preiss, W. V., Collins, A. S., Virgo, G. M., Blades, M. L., Gilbert, S. E., . . . Amos, K. J. (2023). Geochronology and formal stratigraphy of the Sturtian Glaciation in the Adelaide Superbasin. Geological Magazine, 160(7), 1321-1344. Scopus5 WoS6 |
| 2022 | Subarkah, D., Nixon, A. L., Jimenez, M., Collins, A. S., Blades, M. L., Farkaš, J., . . . Holford, S. (2022). Supplementary material to &quot;Constraining the geothermal parameters of in situ Rb–Sr dating on Proterozoic shales and its subsequent applications&quot;. |
| 2022 | Subarkah, D., Nixon, A. L., Jimenez, M., Collins, A. S., Blades, M. L., Farkaš, J., . . . Holford, S. (2022). Constraining the geothermal parameters of in situ Rb–Sr dating on Proterozoic shales and its subsequent applications. |
| 2022 | Subarkah, D., Nixon, A. L., Jimenez, M., Collins, A. S., Blades, M. L., Farkaš, J., . . . Jarrett, A. (2022). Constraining the geothermal parameters of in situ Rb–Sr dating on Proterozoic shales and their subsequent applications. Geochronology, 4(2), 577-600. Scopus12 WoS10 |
| 2022 | Subarkah, D., Blades, M. L., Collins, A. S., Farkaš, J., Gilbert, S., Löhr, S. C., . . . Zack, T. (2022). Unraveling the histories of Proterozoic shales through in situ Rb-Sr dating and trace element laser ablation analysis. Geology, 50(1), 66-70. Scopus35 WoS29 |
| 2021 | Virgo, G. M., Collins, A. S., Amos, K. J., Farkaš, J., Blades, M. L., & Subarkah, D. (2021). Descending into the “snowball”: High resolution sedimentological and geochemical analysis across the Tonian to Cryogenian boundary in South Australia. Precambrian Research, 367, 106449-1-106449-28. Scopus7 WoS8 |
| 2020 | Subarkah, D., Blades, M., Collins, A., Farkas, J., Yang, B., Cox, G., . . . Munson, T. (2020). Shale and carbonate geochemistry of the Proterozoic greater McArthur Basin, Australia.. |
| - | Kernen, R., Amos, K. J., Virgo, G., Lloyd, J., & Subarkah, D. (2025). Salt diapirs as an architect of Neoproterozoic stromatolite platform reefs. GEOLOGICAL SOCIETY OF AMERICA BULLETIN, 13 pages. |
| Year | Citation |
|---|---|
| 2023 | Shao, Z., Farkas, J., Collins, A., Glorie, S., Subarkah, D., Gilbert, S., . . . Spandler, C. (2023). In-situ triple dating (Rb-Sr, Lu-Hf, U-Pb) of carbonate-hosted glauconite and bioapatite from the Middle Cambrian Georgina Basin, Australia. In Goldschmidt2023 abstracts. European Association of Geochemistry. DOI |
| 2023 | Zheng, R., Farkas, J., Collins, A., Subarkah, D., Payne, J., Gilbert, S., . . . Giles, D. (2023). New constraints on the origin and post-depositional history of Neoproterozoic Breamar ironstones from South Australia: Insights from micro-scale mineral mapping and in-situ Rb-Sr dating of illite and U-Pb dating of hematite. In Goldschmidt2023 abstracts. European Association of Geochemistry. DOI |
| 2023 | Subarkah, D., Nixon, A., Collins, A., Gilbert, S., Blades, M., Virgo, G., . . . Farkas, J. (2023). New ways to date old rocks: novel applications of in situ geochronology to constrain the sedimentary archive. In Goldschmidt2023 abstracts. European Association of Geochemistry. DOI |
| - | Subarkah, D., Nixon, A. L., Jimenez, M., Collins, A. S., Blades, M. L., Farkas, J., . . . Holford, S. (2022). Geothermal parameters of in situ Rb–Sr dating on Proterozoic shales and its applications. In Exploring Australia’s Resource Frontier. etroleum Exploration Society of Australia (PESA). DOI |
| - | Farkas, J., Collins, A., Löhr, S., Verdel, C., Blades, M., Holmden, C., . . . Yardley, S. (2022). New metal isotope techniques to explore past depositional environments of the Centralian Superbasin, Australia. In Exploring Australia’s Resource Frontier. etroleum Exploration Society of Australia (PESA). DOI |
| Date | Role | Research Topic | Program | Degree Type | Student Load | Student Name |
|---|---|---|---|---|---|---|
| 2024 | Co-Supervisor | Sedimentary-hosted critical mineral systems in the McArthur Basin, Northern Australia | Doctor of Philosophy | Doctorate | Full Time | Miss Dana Nicola Imbrogno |
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