Research projects

Earth is a chemically heterogeneous body. While mantle convection can be approximated as a thermally driven process, recent studies indicate that chemical heterogeneities may play an important role in governing the form and planform of mantle dynamics. Additionally, a growing body of geochemical observations argue...

Mantle convection is the principal control on Earth's thermal, chemical and geological evolution. It is central to our understanding of the origin and evolution of tectonic deformation, the thermal and compositional evolution of the mantle and, ultimately, the evolution of Earth as a whole. Plate tectonics and...

The Himalaya are the world’s largest mountain belt formed in response to Cenozoic collision of the Indian continent & the Eurasian plate. This project assesses uplift history of the Himalaya, its erosional landscape response, & the preservation potential of critical mineral systems in this region.

Magnetotactic bacteria biomineralise magnetic nanoparticles. They are ubiquitous in aquatic environments, so their inorganic remains (magnetofossils) should give rise to sedimentary palaeomagnetic signals. Ancient magnetofossil identifications were sparse until new techniques recently demonstrated their extensive...

Revising the chlorite geothermometer to understand the formation mechanisms of ore deposits

For more information on this project please visit the GRACE website.

Small zircon crystals found in sediments from the Jack Hills, Western Australia are the oldest terrestrial materials yet identified and provide a unique perspective on Earth's early history, before the start of the preserved rock record at about 4 Ga. The difficulty is that the most ancient zircons, with ages >4 Ga...

The Australian Lungfish is an iconic species. It is an air breathing freshwater fish that may survive up to 100 years and has remained unchanged for 140 million years. However, young fish may not be reaching maturity, leaving an ageing population in terminal decline. We propose to use a novel method for exploring...

The lowermost mantle sits atop the core-mantle boundary – the most dramatic boundary within our planet, with contrasts in physical properties that exceed those that exist at the surface. Despite significant progress, this region is not well understood, and global seismology paves the path towards new understanding.

High-temperature gases are found in many environments on Earth and other planets, but they have been overlooked because they leave little trace. These projects aim to investigate these gases in magmas, volcanoes and metamorphic rocks using geochemistry and mineralogy of natural samples and experiments.

Pyrochlor is the main ore mineral for the critical metal niobium, and is most commonly found in carbonatites. This project aims to use experimental petrology to understand the conditions under which economic deposits of pyrochlor can form, during crustal evolution of carbonatite magmas.

The magnetism of sediments provides information on the past behaviour of the Earth's magnetic field. This project will study sediments from the oceans around Australia to understand how the field was recorded and use this information to construct a new generation of computer models that will provide insights into...

Rates of soil formation in North Queensland are being studied on basalt lava flows which are dated by K/Ar. In the semi-arid Hughenden- Charters Towers region (500-600 mm/year rainfall), soils form at rates of ~0.3 mm/1000 years. On the Atherton Tableland, (rainfall 1200-3500 mm/year) rates are significantly faster...

Zealandia, the Earth’s hidden continent submerged in the southwest Pacific Ocean, is the youngest and thinnest geological continent in the world. Yet, how this continent is formed remains to be further explored, mostly due to a poor understanding of its sub-surface structure.

This project uses state-of-the-art computational tools to calculate seismic waveforms for large tsunamigenic earthquakes. It will assess how critical is the effect of 3D seismic velocity structure in determining earthquake parameters like focal mechanism and rupture area, which are crucial for improved tsunami warning.