Phosphate stabilisation of metalliferous mine wastes: The key to solving a major environmental issue? Mine wastes represent the greatest proportion of solid waste produced by mankind. Unconstrained drainage from sulfide-rich mine wastes impacts on water, soil and sediment quality. This project will establish the scientific principles of phosphate stabilisation, which involves the addition of phosphate compounds to mine wastes and soils to permanently contain metals and acid. A solid understandin ....Phosphate stabilisation of metalliferous mine wastes: The key to solving a major environmental issue? Mine wastes represent the greatest proportion of solid waste produced by mankind. Unconstrained drainage from sulfide-rich mine wastes impacts on water, soil and sediment quality. This project will establish the scientific principles of phosphate stabilisation, which involves the addition of phosphate compounds to mine wastes and soils to permanently contain metals and acid. A solid understanding of this emerging technology is a prerequisite for any sustainable management of mine sites. The study will provide the foundation of future management tools needed by landholders, industry and regulators to remediate mined land and waste repositories.Read moreRead less
Deep time in the deep Earth: using trace element diffusivities to constrain durations of deep Earth processes. Evaluation of deep Earth resources requires knowing how long geological processes took, some record of which is often preserved by gradients in the chemical compositions of minerals. Experiments at very high temperatures and pressures will determine how this evidence can be used to constrain the durations of a rich variety of geological processes.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0453436
Funder
Australian Research Council
Funding Amount
$448,284.00
Summary
An advanced electron microanalytical facility for South-East Queensland. Funding is requested to purchase an electron probe micro-analysis (EPMA) unit to be located at The University of Queensland and to upgrade and re-configure the scanning electron microscope facilities at the Queensland University of Technology. These integrated systems will be shared between the two institutions and will provide much needed infrastructure for several high profile and high performing groups. These groups incl ....An advanced electron microanalytical facility for South-East Queensland. Funding is requested to purchase an electron probe micro-analysis (EPMA) unit to be located at The University of Queensland and to upgrade and re-configure the scanning electron microscope facilities at the Queensland University of Technology. These integrated systems will be shared between the two institutions and will provide much needed infrastructure for several high profile and high performing groups. These groups include; Metallurgy, Materials, Earth Sciences, Chemistry, and Biomaterials. Acquisition of these facilities will complement the instrument mix at both institutions and will provide infrastructure that is necessary to sustain the leading edge research conducted by groups associated with this application.Read moreRead less
Mineral Physics and Crystal Chemistry of Ni-Co-Laterite Deposits. Ni-Co laterite deposits host more than 50% of the mineable Ni-Co resources on the planet. Australia and Australian mining companies have been major producers of Ni and Co in the past. To continue to play a significant role in the exploration, production, and environmentally sound remediation of Ni-Co laterite mining sites, Australian mining companies must increase their understanding of the mineralogy of Ni-Co-deposits. This res ....Mineral Physics and Crystal Chemistry of Ni-Co-Laterite Deposits. Ni-Co laterite deposits host more than 50% of the mineable Ni-Co resources on the planet. Australia and Australian mining companies have been major producers of Ni and Co in the past. To continue to play a significant role in the exploration, production, and environmentally sound remediation of Ni-Co laterite mining sites, Australian mining companies must increase their understanding of the mineralogy of Ni-Co-deposits. This research program proposes strategic micro-analytical and synchrotron-based research on the fundamental physical properties and crystal chemistry of Ni-Co-laterite minerals from selected deposits in Australia and around the globe.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE130100006
Funder
Australian Research Council
Funding Amount
$500,000.00
Summary
X-ray Microscopy Facility for Imaging Geo-materials (XMFIG). The X-ray Microscopy Facility for Imaging Geo-Materials (XMFIG) will allow the investigation, with near-synchrotron capabilities, of the three dimensional internal structures and chemical compositions of geo-materials under relevant environmental conditions by engineers, geologists and materials scientists.
Voltage-dependent structural changes in voltage-gated sodium channels. This project aims to provide insights into the structural rearrangements experienced by Nav channels, which are key components of animal nervous systems. Voltage-gated sodium (Nav) channels initiate action potentials in excitable cells. They open in response to membrane depolarisation then rapidly inactivate. Eukaryotic Nav channels contain four unique voltage-sensor domains (VSDs) that control how the channel responds to mem ....Voltage-dependent structural changes in voltage-gated sodium channels. This project aims to provide insights into the structural rearrangements experienced by Nav channels, which are key components of animal nervous systems. Voltage-gated sodium (Nav) channels initiate action potentials in excitable cells. They open in response to membrane depolarisation then rapidly inactivate. Eukaryotic Nav channels contain four unique voltage-sensor domains (VSDs) that control how the channel responds to membrane potential changes. Recently reported crystal structures of bacterial Nav channels have greatly advanced the field, but these channels contain four identical VSDs and have different inactivation properties. Thus, much remains to be learnt about the conformational plasticity of eukaryotic Nav channel VSDs. The project plans to use animal toxins to capture eukaryotic VSDs in defined states of the gating cycle for detailed structural analysis using nuclear magnetic resonance and X-ray crystallography.Read moreRead less