A5006423612- Geochemistry and Geologic Mapping
- Geological and Geochemical Analysis
- Geochemistry and Elemental Analysis
- earthquake and tectonic studies
- Hydrocarbon exploration and reservoir analysis
- Radioactive element chemistry and processing
- Mineral Processing and Grinding
- Geological formations and processes
- Paleontology and Stratigraphy of Fossils
- Mineralogy and Gemology Studies
- Remote-Sensing Image Classification
- Health Systems, Economic Evaluations, Quality of Life
- Healthcare Policy and Management
- Geology and Paleoclimatology Research
- Geophysical and Geoelectrical Methods
- Geological Studies and Exploration
- Dental Radiography and Imaging
- Mining Techniques and Economics
- Mining and Resource Management
Geoscience Australia
2023-2025
University of Tasmania
2019-2024
University of St Andrews
2016-2023
Memorial University of Newfoundland
2015-2020
Commonwealth Scientific and Industrial Research Organisation
2013-2020
Australian Resources Research Centre
2020
Mineral Resources
2020
Queen's University
1995-2010
Université du Québec à Montréal
2005
University of Ottawa
1995
Fluid pathways in hydrothermal ore deposits can potentially be traced through alteration zoning patterns and the chemistry of mineral phases (i.e., major, trace elements, isotopic composition), which provide insight into physico-chemical gradients within adjacent to pathways. World-class Neoarchean gold eastern Yilgarn zoned with respect assemblages, but many cases fluid are poorly understood, makes it difficult identify nature source fluids. This study conducted detailed core logging, SEM...
Hydrothermal magnetite from the Starra iron oxide‑copper gold (IOCG) deposit in northwest Queensland, Australia, records a gradual decrease V, Ni, Cr, and Mn that correlates with transition early, amphibole-biotite-magnetite dominant alteration to late, chlorite-quartz-hematite-dominated assemblages. The observed systematic change multivariate elements is interpreted indicate an increase fO2 during main Cu(Au) mineralization. We suggest variations Cr contents of at either primary magmatic...
The Millennium uranium basement-hosted unconformity-related deposit is one of the most recent discoveries deposits, and may hold as much 46.8 million pounds (18,000 metric tonnes U) at an average grade 4.53 percent U3O8. alteration zone associated with atypical, it consists predominantly muscovite rather than chlorite commonly found in other deposits Athabasca basin. The preore stage early minor clinochlore temperatures about 275°C, interpreted to result from retrograde metamorphism...
Hyperspectral reflectance has the potential to provide rapid and low-cost mineralogical chemical information that can be used vector in mineral systems. However, spectral signature of white mica chlorite, despite numerous studies, is not fully understood. In this study, we review mineralogy chemistry different chlorite types investigate what changes are responsible for apparent shifts shortwave infrared (SWIR) spectroscopic absorption features. We demonstrate more complex than previously...
Previous studies on Athabasca basin unconformity-related uranium deposits have focused major and not investigated sites with barren alteration systems that could clarify some of the critical factors controlling mineralization processes. A paragenetic study Wheeler River area reveals presence minerals formed during diagenetic, main hydrothermal, which is subdivided into early, mid-, late hydrothermal substages, stages. The diagenetic stage consists early quartz overgrowths, siderite, rutile,...
Research Article| August 01, 2015 Styles, Textural Evolution, and Sulfur Isotope Systematics of Cu-Rich Sulfides from the Cambrian Whalesback Volcanogenic Massive Sulfide Deposit, Central Newfoundland, Canada Jonathan Cloutier; Cloutier † 1Department Earth Sciences, Memorial University 300 Prince Philip Drive, St. John's, NL A1B 3X5, †Corresponding author: e-mail, jonathanc@mun.ca Search for other works by this author on: GSW Google Scholar Stephen J. Piercey; Piercey Graham Layne; Layne...
Abstract Alkaline igneous rocks host many global high-field-strength element (HFSE) and rare-earth (REE) deposits. While HFSEs are commonly assumed to be immobile in hydrothermal systems, transport by late-stage fluids associated with alkaline magmas is reported. However, the magnitude of flux conditions poorly constrained yet essential understanding formation REE-HFSE ores. We examined alteration country (“fenitization”) accompanying emplacement a syenite magma at Illerfissalik Greenland,...
The production of rare earth elements is critical for the transition to a low carbon economy. Carbonatites (>50% carbonate minerals) are one most significant sources (REEs), both domestically within Australia, as well globally. Given strategic importance minerals, including REEs, Australian national economy, mineral potential assessment has been undertaken evaluate prospectivity carbonatite-related REE (CREE) mineralisation in Australia. CREE deposits form result lithospheric- deposit-scale...
Abstract The use of hyperspectral reflectance in mineral exploration has been steadily increasing recent decades. This study presents a novel approach that integrates geochemical and spectral proxies to delineate ore formation alteration processes, which provide new spectral-based parameters can be used real time. precious metal-bearing, bimodal-felsic Northwest zone the Lemarchant volcanogenic massive sulfide (VMS) deposits, Newfoundland, Canada, is as case study. Alteration associated with...
The five Starra iron oxide copper–gold (IOCG) deposits, which are located in the Cloncurry district of Mount Isa Inlier, NW Queensland, hosted a N-trending zone deformed iron-rich metasedimentary rocks that underlain by two mineralogically distinct mafic–intermediate meta-igneous rocks. Copper–Au mineralisation is subdivided into stages—an early main stage transitioned from magnetite-dominated Cu substage comprising chalcopyrite, pyrite, biotite and chlorite, to hematite–muscovite-bearing...
Neodymium isotope data on exhalites and tuffs from the Cambrian Lemarchant volcanogenic massive sulphide (VMS) deposit provide insights into tectonic environment of Tally Pond group, Canada. New area show evolved values εNd 513 = −6.0 to −1.8, whereas associated volcanic rocks have +0.4 +1.4. The exhalite compositions overlap underlying Ganderian Neoproterozoic Sandy Brook Group (εNd t −6.5 −1.9) Crippleback Intrusive Suite −5.9 −5.2). Nd isotopic signatures suggest that group were formed...
Abstract White Pine, located in Michigan’s Upper Peninsula, is an archetypal sediment-hosted stratiform copper deposit. The Midcontinent rift system one of only seven basins globally that host a giant Despite many similarities with other deposits this type, Pine displays some important differences, including the late Mesoproterozoic age, thick basalt sequence, apparent lack evaporites, and lacustrine depositional setting. This study analyzes paleofluid flow related to formation places...
By relating health care resources and their use to outcomes, through a coherent macro resource allocation framework, one can examine the system for allocative efficiencies. In this article, costs outcomes are analyzed in such scenarios optimizing of resources—while still maintaining existing outcomes—are explored, implications ambulatory discussed. The research clearly shows that much be done make systems more efficient without jeopardizing outcomes.