Mechanisms of proxy uptake in biominerals. This project plans to combine nano-analytical and aquaculture methods to develop new models that improve the reliability of paleoclimate reconstructions. The compositions of shells and skeletal materials of marine invertebrates are essential archives for quantifying temperatures and environmental conditions before modern climate records began. However, their reliability relies on understanding their formation. Emerging knowledge from material sciences i ....Mechanisms of proxy uptake in biominerals. This project plans to combine nano-analytical and aquaculture methods to develop new models that improve the reliability of paleoclimate reconstructions. The compositions of shells and skeletal materials of marine invertebrates are essential archives for quantifying temperatures and environmental conditions before modern climate records began. However, their reliability relies on understanding their formation. Emerging knowledge from material sciences indicates that these biocarbonates form via transient precursors rather than direct precipitation from seawater, profoundly affecting their interpretation. This project plans to transfer this new understanding to the earth sciences using nanoscale analytical methods including in vitro geochemical partitioning experiments. This would enable realistic models for geochemical proxy behaviour to be developed, significantly improving paleoclimate interpretations and assessments of ocean acidification effects on marine calcifiers.Read moreRead less
Reducing 3D geological uncertainty via improved data interpretation methods. The integrity of 3D geological models heavily relies on robust and consistent data interpretation. This project proposes an innovative workflow for 3D modelling to minimise geological uncertainty. Advanced visualisation and intelligent decision support methods will be combined to assist geological interpretation. Feedback on interpretation will be provided based on data evidence and consistency with expert knowledge and ....Reducing 3D geological uncertainty via improved data interpretation methods. The integrity of 3D geological models heavily relies on robust and consistent data interpretation. This project proposes an innovative workflow for 3D modelling to minimise geological uncertainty. Advanced visualisation and intelligent decision support methods will be combined to assist geological interpretation. Feedback on interpretation will be provided based on data evidence and consistency with expert knowledge and previous interpretations. The process can be considered as a spelling and grammar checker for geological interpretation. The outcome of this study aims to achieve an improved workflow that reduces model uncertainty, resulting in a broad and significant impact on the management of Australian mineral, energy and water resources.Read moreRead less
Rehydration of the lower crust, fluid sources and geophysical expression. This project aims to explore a long-standing mystery: the origin of deep crustal electrical conductors detected by magnetotelluric imaging of tectonically stable crust. These features occur in cratons of all ages, and commonly cross cut structures and lithologies. This project aims to investigate the hypothesis that such features are the record of ancient deep crustal fluid flow, which modified the rock electrical properti ....Rehydration of the lower crust, fluid sources and geophysical expression. This project aims to explore a long-standing mystery: the origin of deep crustal electrical conductors detected by magnetotelluric imaging of tectonically stable crust. These features occur in cratons of all ages, and commonly cross cut structures and lithologies. This project aims to investigate the hypothesis that such features are the record of ancient deep crustal fluid flow, which modified the rock electrical properties. Using an exceptionally exposed natural laboratory preserving large-scale rehydration of anhydrous lower crust, the project plans to determine the source of fluids and the compositional changes they induced. It then plans to experimentally determine changes in resistivity induced by fluid flow and use that data to model the magnetotelluric response at crustal scale.Read moreRead less
Developing and testing a new dating tool for Quaternary science. This project plans to use cutting-edge instrumentation to develop a novel method for dating geological materials formed in a critical time window for which no dating technique currently exists. The last million years of Earth’s history has seen dramatic changes in global climate and environment, with catastrophic volcanic eruptions and numerous other natural processes shaping landforms and ecosystems. A major challenge for studying ....Developing and testing a new dating tool for Quaternary science. This project plans to use cutting-edge instrumentation to develop a novel method for dating geological materials formed in a critical time window for which no dating technique currently exists. The last million years of Earth’s history has seen dramatic changes in global climate and environment, with catastrophic volcanic eruptions and numerous other natural processes shaping landforms and ecosystems. A major challenge for studying these phenomena and their impacts is the dating of geological archives in the time window between 50 000 and 1 000 000 years. This project aims to develop a method for dating young volcanic rocks that can close this critical gap. The result would be a new dating tool with broad implications for the Quaternary sciences globally, including paleoclimate and paleoenvironmental reconstructions, natural hazards assessment, hominin evolution and archaeology.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160100169
Funder
Australian Research Council
Funding Amount
$365,206.00
Summary
Redox evolution of basaltic magmas. The project aims to contribute to our understanding of the redox state (the oxidation and reduction of chemicals) of the Earth’s mantle and how it changes in space and time. The redox state of the Earth’s mantle controls the valency of elements such as iron and the speciation of volatiles (eg hydrogen, carbon and sulphur) that degas from volcanoes and ultimately make up the atmosphere. This project aims to quantify the changes in redox state experienced by var ....Redox evolution of basaltic magmas. The project aims to contribute to our understanding of the redox state (the oxidation and reduction of chemicals) of the Earth’s mantle and how it changes in space and time. The redox state of the Earth’s mantle controls the valency of elements such as iron and the speciation of volatiles (eg hydrogen, carbon and sulphur) that degas from volcanoes and ultimately make up the atmosphere. This project aims to quantify the changes in redox state experienced by various types of basaltic magmas. The outcomes of the project could help us to model the transport of metals in magmas and predict ore deposits, and assess the nature and relative contributions of volatiles that degas from volcanoes.Read moreRead less
Add mountains and shake: plate boundary fault and earthquake patterns. This project aims to determine the fundamental physical processes that link topography, seismic shaking and volcanism to the evolution of seismogenic fault networks in obliquely convergent (transpressional) plate boundary settings. We will combine detailed field and remote sensing-based structural analyses in transpressional mountain belts with advanced laboratory analogue and numerical experiments to evaluate: 1) how bursts ....Add mountains and shake: plate boundary fault and earthquake patterns. This project aims to determine the fundamental physical processes that link topography, seismic shaking and volcanism to the evolution of seismogenic fault networks in obliquely convergent (transpressional) plate boundary settings. We will combine detailed field and remote sensing-based structural analyses in transpressional mountain belts with advanced laboratory analogue and numerical experiments to evaluate: 1) how bursts of strong seismic shaking perturb fault zone evolution through time; 2) the contribution of topography and gravitation loading to fault interactions and earthquake generation; and 3) feedbacks between fault network development, the spatial distribution of volcanic centres, seismic shaking and ore deposits.Read moreRead less
Engineering planetary habitability: Earth’s first billion years. This project aims to establish the critical physical-chemical factors in the early surface environment and tectonic regime that supported early life and continuing habitability. Life was established on Earth within the first billion years of its 4.56-billion-year history. This project’s integrated geological and geochemical study will investigate this period’s rare sedimentary and volcanic record, including the oldest fossiliferous ....Engineering planetary habitability: Earth’s first billion years. This project aims to establish the critical physical-chemical factors in the early surface environment and tectonic regime that supported early life and continuing habitability. Life was established on Earth within the first billion years of its 4.56-billion-year history. This project’s integrated geological and geochemical study will investigate this period’s rare sedimentary and volcanic record, including the oldest fossiliferous sequences discovered recently, to show how the early Earth’s chemistry supported life and evolution. The project expects to enhance understanding of why life prospers on some habitable zone planets but not on others.Read moreRead less
Enabling three dimensional stochastic geological modelling. This project aims to develop technologies to mitigate three dimensional (3D) geological risk in resources management. This project expects to create new knowledge and methods in the field of 3D geological modelling through the innovative application of mathematical methods, structural geology concepts and probabilistic programming. The expected outcomes are an enhanced capability to model the subsurface, characterise model uncertainty a ....Enabling three dimensional stochastic geological modelling. This project aims to develop technologies to mitigate three dimensional (3D) geological risk in resources management. This project expects to create new knowledge and methods in the field of 3D geological modelling through the innovative application of mathematical methods, structural geology concepts and probabilistic programming. The expected outcomes are an enhanced capability to model the subsurface, characterise model uncertainty and test multiple geological scenarios. This enhanced capability is important for the future of Australia's subsurface management, including urban geology and our continuously growing sustainable resources industry.Read moreRead less
Submarine volcanoes: degassing of silicic magma with implications for ascent and eruption processes. This research project will advance the basic understanding of how magma ascends and erupts in submarine settings. This study will identify the relative roles and timing of volcanic gas release from silicic magmas, using cutting-edge techniques newly available at the Australian Synchrotron.
Three-dimensional Bayesian Modelling of Geological and Geophysical data. The project aims to develop technologies enabling rapid informed decision-making related to the management of natural resources, including critical metals, copper and water. This new technology will support a greener future, securing our energy future, our access to clean water and reduce the mining footprint. Expected outcomes include an enhanced capability in interoperable, integrated three-dimensional geological and geop ....Three-dimensional Bayesian Modelling of Geological and Geophysical data. The project aims to develop technologies enabling rapid informed decision-making related to the management of natural resources, including critical metals, copper and water. This new technology will support a greener future, securing our energy future, our access to clean water and reduce the mining footprint. Expected outcomes include an enhanced capability in interoperable, integrated three-dimensional geological and geophysical modelling in order to predictively characterise sub-surface geology. The outcome will be an open-source forecasting dashboard enabling decision making while considering underlying risk related to resource extractions and management with significant benefits to the Australian society (lower emissions, clean water).Read moreRead less