A5044014541- Geochemistry and Geologic Mapping
- Geological and Geochemical Analysis
- Geophysical and Geoelectrical Methods
- Hydrocarbon exploration and reservoir analysis
- Mineral Processing and Grinding
- earthquake and tectonic studies
- Geological and Geophysical Studies
- Radioactive element chemistry and processing
- Geological formations and processes
- Geochemistry and Elemental Analysis
- Mine drainage and remediation techniques
- Geological Modeling and Analysis
- Mineralogy and Gemology Studies
- Geology and Paleoclimatology Research
- Geophysics and Sensor Technology
- Global Energy and Sustainability Research
- Identification and Quantification in Food
- Geomagnetism and Paleomagnetism Studies
- Isotope Analysis in Ecology
- Paleontology and Stratigraphy of Fossils
- Seismic Imaging and Inversion Techniques
- Gyrotron and Vacuum Electronics Research
- Seismic Waves and Analysis
- Reservoir Engineering and Simulation Methods
- Soil Geostatistics and Mapping
Geological Survey of Western Australia
2014-2024
Department of State Development
2015-2021
Australian Resources Research Centre
2020
United States Geological Survey
2019
Newcrest Mining (Australia)
2016
Department of Primary Industries and Regions South Australia
2006-2009
Faced with ongoing depletion of near-surface ore deposits, geologists are increasingly required to explore for deep deposits or those lying beneath surface cover. The result is increased drilling costs and a need maximize the value drill hole samples collected. Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) analysis pyrite one tool that showing promise in exploration. Since trace element content approximates composition fluid from which it precipitated...
Fluorite (CaF2) is a common hydrothermal mineral, which precipitates from fluorine-rich fluids with an exceptional capacity to transport metals and Rare Earth Elements (REEs). Hence, the ability date fluorite has important implications for understanding timing of metal in systems. Here we present, first time, Lu-Hf dates fluorite-carbonate veins Olympic Cu-Au Province South Australia. The were obtained situ using recently developed LA-ICP-MS/MS dating method. A fluorite-calcite age 1588 ± 19...
The primary driver for mineralization in the Olympic Cu-Au province of eastern Gawler craton, South Australia, was a major early Mesoproterozoic thermal event, partly manifest as extensive A-type, I-type, and mafic magmatism. Magmatism this age is present across craton Curnamona to east, yet hematite-rich, iron oxide copper-gold (IOCG) deposits are apparently restricted north-south belt along margin craton. Whereas geochemical differences between granites versus western appear influence type...
The Stuart Shelf is part of the Adelaide Superbasin overlying Gawler Craton and Cariewerloo Basin in South Australia. basin interest for sediment-hosted copper mineralisation known to be hosted numerous stratigraphic intervals across region. Therefore, facies analysis understanding spatial distribution host units are essential exploration targeting mineral systems research. Our study presents improved new definitions Cryogenian Ediacaran stratigraphy, a detailed, regional-scale sequence...
A workflow incorporating hyperspectral reflectance data, hull corrections, absorption feature extraction and clustering is presented. The applied to dense datasets, as collected by drill core logging systems. extracted features of the spectra from cores are shown form assemblage clusters when plotting wavelength position first, second third deepest in two three dimensions. Using an unsupervised method establish based on yields viewable down hole distributions similar mineral assemblages....
Geochemical data are frequently collected from mineral exploration drill-hole samples to more accurately define and characterise the geological units intersected by drill hole. However, large multi-element sets slow challenging interpret without using some form of automated analysis, such as mathematical, statistical or machine learning techniques. Automated analysis techniques also have advantage in that they repeatable can provide consistent results, even for very sets. In this paper, an...
Uranium exploration and mining in Australia China are significant increasingly important sectors of each country's respective mineral industry. Here we focus on similarities the geology paleovalley-related uranium mineralising systems, which can be used to refine strategies for exploration. Paleovalley-related resources developed as sandstone-hosted surficial deposits within paleovalley-fills, deposited either incised crystalline bedrock, or sedimentary cover that is often similar age...
Abstract Paleozoic porphyry-style hydrothermal alteration and mineralization has previously been recognized within the Delamerian orogen, South Australia, where porphyry prospects include Anabama Hill, Netley Bendigo. However, limited exploration due in part to thick postmineralization cover hinders understanding of temporal context, metallogenic setting, mineral potential systems along Proterozoic continental margin Australia. In this study, we have characterized these occurrences. Zircon...
Two deep crustal seismic profiles, centred on the Olympic Dam Cu-Au-U deposit, were reprocessed by HiSeis Pty Ltd. using a proprietary method. This processing method aimed to enhance subtle variations in signal strength and highlight upper discontinuities. The resulting images enable interpretation of steep structures regions enhanced/reduced reflectivity possibly associated with large-scale alteration zones. work highlights additional information within these lines that illuminate different...
AbstractSedimentary uranium mineralisation in South Australia is mostly Cainozoic basinal palaeochannels developed on or proximal to Precambrian cratons. basement of the Gawler and Curnamona cratons have contents range 10-100 ppm, well above crustal average 2.8 ppm U. Deeply weathered rocks these regions were incised during early Tertiary times sediments palaeodrainage networks now form several significant provinces. The palaeochannel deposits are typically hosted by medium coarse-grained...
Abstract To evaluate the fertility of porphyry mineralization in Delamerian Orogen (South Australia), zircon and apatite from four prospects, including Anabama Hill, Netley Bendigo, Colebatch, have been analyzed by LA-ICP-MS electron microprobe. The is characterized heavy REEs enrichment relative to light REEs, high (Ce/Nd) N (1.3–45), weak moderate negative Eu/Eu* (0.2–0.78). has right-sloped REE patterns with variably positive Eu anomalies. Low Mg (< 670 ppm) Sr/Y ratios 5) likely...
Abstract Porphyry-style hydrothermal alteration has long been recognized in the Delamerian Orogen, Southeastern Australia. However, fertility of porphyry prospects this belt, including Anabama Hill, remains elusive, due to intermittent exploration activities and sparse exposure. Recent significant discoveries porphyry-epithermal Cu-Au deposits adjacent Stavely Arc have led renewed interest. Reinvestigation Hill drill cores highlights that K-feldspar-rich epidote-chlorite-dominated...
Integrated data sourced from drill core geochemistry, spectral logs, petrophysical logs available holes and geophysical in around the Punt Hill Copper-Gold prospect was used to characterise map an IOCG system predict prospective areas using a multi-disciplinary approach. Mineral assemblages associated with copper mineralisation were identified geochemical analysis logs; density ranges favourable mineral noted inversions fitted these attempt similar densities untested parts of study...
When building 3D models of the subsurface, reconciling several geological and geophysical data diverse nature, resolutions, coverage, or sensitivity, is challenging, both numerically petrophysically. In this work, we propose a workflow for mapping selected features characterise their uncertainty using Bayesian Estimate Fusion algorithm. Different datasets such as 1D probabilistic derived from data, drillholes are combined to produce maps boundaries, relying on petrophysical assumptions....
Effective surface geochemical techniques to help map buried ore deposits are one means of limiting the high cost unsuccessful holes drilled test new targets or define extensions known orebodies. With this in mind, a version CHIM electro-geochemical prospecting technique developed at Guilin University, China was demonstrated Challenger Gold Mine South Australia its suitability under Australian conditions.Two survey lines were completed over projected extension shoots mine. The results...
Zircon from spatially and temporally distinct igneous rock units across the Gawler Craton, Australia, show subtle differences in trace rare earth element ratios. These suites range composition granite, rhyolite to gabbro originate ca 2450 Ma Sleaford Complex, 1850 Donington Suite, 1633–1608 St Peter 1595–1587 Range Volcanics 1595–1575 Hiltaba Suite granites. The geochemical characterisation of zircon is carried out on relatively unaltered samples order establish primary signatures understand...
The Eastern Gawler Craton IOCG Province, South Australia, hosts a number of deposits associated with Hiltaba Suite magmatism under deep cover. Exploration methods increasingly rely upon geological models derived from potential field data to define the crystalline basement drill targets. Coincident gravity - magnetic anomalies have been successfully applied for predicting iron oxide alteration, such as targeting Carrapateena deposit. This has lead widespread modelling aeromagnetic and based...