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Read about TMVC PhD student Ayesha Ahmed, recipient of the 2017 The AusIMM - Minerals Institute EEF award
University of Tasmania

“Ayesha Ahmed received our 2017 AusIMM Education Endowment Fund (EEF) PhD Award and is one of the #125faces in our campaign. Read more here: https://t.co/IWFbCI6uET
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Registrations for the Ore Deposit Models and Exploration Strategies Short Course are now open. This course includes the 3 day Garry Davidson Symposium.
Short Course flyer and registration form: https://bit.ly/2HBInlD

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Registrations for the Garry Davidson Symposium are now open.
Early bird registration closes June 30th, with final registrations closing October 14th.
Full symposium flyer and registration form: https://bit.ly/2IK2QUN

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A brief on Sarah Gilmour's Honours project

Earth Sciences, University of Tasmania added 5 new photos.

Mineralogical and geochemical characterisation of historical slag in Tasmania: evaluating environmental impacts and economic significance.
Sarah Gilmour, Honour...s Student.

As technology evolves and improves, we find ourselves needing more and more resources from the world around us. Mining provides one of the means for technological growth, for example the phone or computer that you are reading this post on would not exist without mining.

This leads to questions of how much progress can the world’s resources support. In 2015, the United Nations developed 17 sustainable development goals, each with targets to achieve in the next 15 years. These goals aim to achieve sustainable development globally. While mining fits into almost all 17 goals, it particularly stands out in goals 9, 12, 13, 14 and 15 (industry innovation and infrastructure, responsible consumption and production, climate action, life below water and life on land). The mining industry needs to focus on achieving the targets within these goals if a sustainable future is to be achieved. One of the ways in which the mining industry and state governments can adopt more sustainable practices is by better managing mine waste. Metal mines produce many types of waste one of these is slag. Slag is the remaining material left over after the desirable metals have been separated from the ore during smelting.

Some slags can be harmful to the environment due to their relatively high metal content. If left exposed at the surface to weathering and erosion, forces like wind and rain can transport these metals into waterways and land. One example of mine waste related pollution is acid and metalliferous drainage (AMD) characterised by low-pH (acid) waters which contain high levels of dissolved metals and sulfate. Mine operators and government agencies spend lots of time and money on monitoring these wastes and trying to prevent AMD from occurring.

In Australia it’s been reported that they are over 60,000 abandoned or historic mines. These mines are not owned by companies and a lot of the time are left for state governments to manage. These sites can be challenging to manage, particularly if AMD is being generated, as this is costly to fix. In Tasmania there are approximately 215 legacy sites generating AMD. My project is looking at historical slag from two of these in western Tasmania. I have been using mineralogical and geochemical techniques to characterise the composition of the slags and determine which parts are soluble and more likely to be transported in surface run-off and by erosion. I am also evaluating if the physical and chemical properties of the different slags might make them suitable for repurposing (building materials, such as roads) or reprocessing to produce metal concentrates. So far, I have uncovered a wide range of weird and wonderful mineral phases- some might say it’s a mineralogists dream (or nightmare)!

Characterising these historic sites aids the government in prioritising sites for remediation. With such an overwhelming number of abandoned mines it is important to target the worst or largest pollutant first. Turning waste materials into resources is a way the mining industry and governments can save both energy and recover costs from their environmental management. It will also assist with reaching the targets set by the United Nations.

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TMVC PhD student Sibele Nascimento and her entrepid supervisors Anita Parbhakar-Fox and Matt Cracknell at the King River delta ... collecting geophysical data and trying to answer 'what is down there'
University of Tasmania

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In early April, CODES-TMVC and the SEG Student Chapter at CODES, UTas will be hosting Greg Corbett’s epithermal and porphyry exploration short course at UTAS.

This is an opportunity you should not miss out on. The course is a distillation of many careers worth of work on porphyry-epithermal deposits, with a focus on important features found marginal to ore.

The course cost is HEAVILY discounted - students typically pay $200 to $750, others are doing well if they can attend a course for less than $1000.

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The next few days on MacQ Harbour (nice weather too!) will be spent by PhD student Sibele, and supervisors Anita and Matt surveying and sampling mine-impacted sediments
University of Tasmania

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TMVC postdoc Matt Cracknell presenting to a full house at the #AEGC2018 AI/machine learning and geosciences workshop.
University of Tasmania

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TMVC PhD student Steve Kuhn talking machine learning for greenfields under cover lithology mapping at #AEGC2018

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Check out our current study opportunities, including 2 PhD projects: Intelligent Geoscience Data Use & Virtual Data Collection (http://www.utas.edu.au/…/phd-opportunity-in-intelligent-geo…) & Geological and Geometallurgical Characterisation of Porphyry Deposit Alteration Overprints (http://www.utas.edu.au/…/phd-opportunity-in-geological-and-…)

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A (belated) warm welcome to the TMVC's newest PhD candidates Nanda Yusentri Mrabawani and (camera shy) Emily Smyk, who both started with us in January.
University of Tasmania

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TMVC summer research student Lexi King getting stuck into her research project focused on explaining anomalously high NAG pH readings.
University of Tasmania

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Newly published article from the TMVC's Shawn Hood, Matt Cracknell and collaborator Michael Gazley.
University of Tasmania

Metasomatism occurs when fluid interacts with rock to add, or remove, its chemical constituents; these processes form mineral deposits where economic element(s) are concentrated into small volumes of rock. It can be difficult, or impossible, to visually determine original rock types for samples that...
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W Tasmania slag samples being analysed at the University of Tasmania Central Science Laboratory. Interesting and complex mineral phases present.

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Wishing all our staff, students, collaborators and supporters a happy holiday season. Enjoy your break, and we look forward to another fantastic year in 2018.
University of Tasmania

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