A5054965546- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- Geological and Geophysical Studies Worldwide
- High-pressure geophysics and materials
- Geochemistry and Elemental Analysis
- Geological and Geophysical Studies
- Geomagnetism and Paleomagnetism Studies
- Paleontology and Stratigraphy of Fossils
- Geological Studies and Exploration
- Hydrocarbon exploration and reservoir analysis
- Metal Extraction and Bioleaching
- Geology and Paleoclimatology Research
- Minerals Flotation and Separation Techniques
- Astro and Planetary Science
- Geological Modeling and Analysis
- Marine and environmental studies
- Mining Techniques and Economics
- Geophysical and Geoelectrical Methods
- Extraction and Separation Processes
- Earthquake Detection and Analysis
- Mineral Processing and Grinding
- Methane Hydrates and Related Phenomena
- Seismic Imaging and Inversion Techniques
- Mine drainage and remediation techniques
The University of Western Australia
2016-2025
Target (United States)
2012-2023
Australian Research Council
2012-2019
ARC Centre of Excellence for Core to Crust Fluid Systems
2012-2019
The University of Sydney
2006-2008
Institut de physique du globe de Paris
2005-2008
University of Stirling
2008
Université Paris Cité
2008
Centre National de la Recherche Scientifique
2006-2008
Biogéosciences
2006
Significance Komatiites are rare, ultra-high-temperature (∼1,600 °C) lavas that were erupted in large volumes 3.5–1.5 bya but only very rarely since. They the signature rock type of a hotter early Earth. However, hottest, most extensive komatiites have restricted distribution particular linear belts within preserved Archean crust. This study used combination different radiogenic isotopes to map boundaries microcontinents space and time, identifying microplates form building blocks...
Abstract The generation of the Earth's continental crust modified composition mantle and provided a stable, buoyant reservoir capable capturing material ultimately preserving ore deposits. Within crust, lithospheric architecture associated cratonic margins are first-order control on camp-scale mineralization. Here we show that evolving crustal Archaean Yilgarn Craton, Western Australia, played key role in controlling localization gold, iron nickel mineralized systems. age source...
The Yilgarn Craton of Western Australia represents one the largest pieces Precambrian crust on Earth, and a key repository information Meso-Neoarchean period. Understanding crustal, tectonic, thermal, chemical evolution craton is critical in placing these events into an accurate geological context, as well developing holistic tectonic models for Archean Earth. Here, we present large U-Pb (420 collated samples) Hf isotopic (2163 analyses) dataset zircon, apply it to constrain craton. These...
Abstract Economic gold deposits result from a 100- to 10,000-fold enrichment in relative crustal background. In hydrothermal systems, this is achieved through the transport and accumulation of metals via deeply sourced fluids site deposition. However, generally low metal solubility Au aqueous solutions orogenic systems requires additional processes order explain high-grade formation. Reports nanoparticles veins infer that their formation linked mineralisation. leading nanoparticle nucleation...
The Archean Yilgarn Craton in Western Australia represents one of the key areas for investigating mechanisms crustal growth during Earth's infancy. far-eastern margin has, however, received limited scientific scrutiny. In this study, in-situ zircon petrochronology (U-Pb, O, and Lu-Hf isotopes) is used to constrain formation evolution easternmost Yamarna Burtville regions as well encompassing Eastern Goldfields (Super)Terrane (EGT) Craton. new data highlight unequivocal existence relatively...
Minerals and/or their compositions (substituted minor elements) can become metastable in changing conditions or if formed outside of equilibrium. Unstable minerals undergo chemical structural modifications at rates determined by re-equilibration processes, such as diffusion, coupled dissolution-reprecipitation and recrystallization. However, re-equilibrated domains with sharp contacts that lack porosity deformation microstructures are difficult to reconcile previously documented processes....
The Archean western Yilgarn Craton contains an extensive record of supracrustal formation from ca 3730 to 2675 Ma, as well evidence ensialic crustal component old 4400 Ma. These features make the one oldest provinces on Earth and ideal for study evolution. Spatial analysis new collated U–Pb age data define three broad pulses granite emplacement at 3000–2820, 2805–2720 2720–2600 with a period regional quiescence 2820–2805 Within these pulses, major peaks in production are defined 2920, 2890,...
Abstract In orogenic systems, pyrite hosts both free-native and lattice-bound gold. The processes governing gold habit, however, remain uncertain subject to widespread debate. this study, we employ micro-to-nanoscale trace element mapping alongside crystallographic characterization of gold-rich from the Kanowna Belle deposit (Western Australia) probe mechanisms influencing precipitation. Our examination reveals a complex chemical zoning in mineralized samples, characterized by an As-depleted...
Abstract The genetic link between granitic intrusions and orogenic gold deposits is a contentious topic, their spatial association often cited as evidence for the involvement of local magmatic fluids in mineralization. 7.4 Moz Gruyere deposit, located far-east Yilgarn craton entirely hosted within monzogranite, offers an excellent opportunity to investigate such relationship. This study combines mineralogical, structural, geochemical, geochronological data develop model Gruyere, providing...
Partial melting and melt-solid segregation play a key role in crustal differentiation. However, quantifying the melt proportion its distribution remains challenging. In this study, we document these processes by structural-petrological analysis of migmatite samples from southern margin Velay dome (French Massif Central), region that exhibits progressive transition micaschists to migmatites formed during Variscan orogeny.We first estimate fraction based on identification leucosome mesosome at...