Application of portable X-ray fluorescence analyses to metabasalt stratigraphy, Plutonic Gold Mine, Western Australia

Gazley, Michael F.; Vry, J. K.; Plessis, Ettienne du; Handler, Monica R.

doi:10.1016/j.gexplo.2011.03.002

Cited by 48 publications

(30 citation statements)

References 20 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Portable XRF (pXRF) analyses, which are included in this study, are gaining popularity in mineral exploration, not only to estimate concentrations of ore elements (e.g., Fajber and Simandl, 2011), but also to study the rocks enclosing the mineralization (e.g., Gazley et al, 2011Gazley et al, , 2014Ross et al, 2014c;Piercey and Devine, 2014). While pXRF on its own is definitely useful, combining it with measurements of physical properties and infrared mineralogy provides a more complete characterization of the drill cores.…”

Section: Discussionmentioning

confidence: 99%

High-Resolution Physical Properties, Geochemistry, and Alteration Mineralogy for the Host Rocks of the Archean Lemoine Auriferous Volcanogenic Massive Sulfide Deposit, Canada

et al. 2016

View full text Add to dashboard Cite

Multi-parameter data on drill cores has a range of useful applications for ore deposit modeling and mineral exploration. Density, magnetic susceptibility, eight major elements, seven trace elements (portable X-ray fluorescence, pXRF), five mineral groups (near-infrared spectrometry) and average visible light reflectance were determined on rock cores from several drill holes. These are located near the Archean Lemoine auriferous volcanogenic massive sulfide (VMS) deposit in the Chibougamau mining district, Abitibi Subprovince, Quebec, Canada. This case study focuses on one drill hole in particular which has been recently characterized in detail by conventional methods (laboratory geochemistry, petrography, stable isotopes); this provides validation for the multi-sensor dataset. The best variables and immobile element ratios to distinguish between different lithological units in the multi-parameter data are density, magnetic susceptibility, Ti/Zr, Al/Zr, and Zr/Y. Downhole profiles of these parameters allow the four different felsic units in LEM-37, many of which are visually similar, to be distinguished, and geological contacts to be positioned precisely. Such methods would be even more useful in environments where recognition of primary characteristics is strongly hampered by intense hydrothermal alteration and superimposed deformation or metamorphism. Volcanic and intrusive rocks can be placed on classic diagrams to assign them names and magmatic affinities based on the corrected pXRF data. Downhole profiles of major and trace elements, combined with infrared mineralogy, allow hydrothermal alteration to be characterized, yielding results comparable to those of conventional techniques for the same drill hole, but with a much tighter spacing and within potentially shorter timeframes.

show abstract

Section: Discussionmentioning

confidence: 99%

High-Resolution Physical Properties, Geochemistry, and Alteration Mineralogy for the Host Rocks of the Archean Lemoine Auriferous Volcanogenic Massive Sulfide Deposit, Canada

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The Mine Mafic Package varies in thickness from <20 to >300 m, and is for the most part overturned (e.g., Gazley, Vry, du Plessis, & Handler, 2011a). Evidence for overturning of the Mine Mafic Package can be found in komatiitic textures in the ultramafic rocks that overlie and underlie the Mine Mafic Package, and variation in elemental concentrations in sections through the Mine Mafic Package (Gazley, 2011;Gazley et al, 2011a;Vickery, 2004).…”

Section: Geological Settingmentioning

confidence: 99%

“…Evidence for overturning of the Mine Mafic Package can be found in komatiitic textures in the ultramafic rocks that overlie and underlie the Mine Mafic Package, and variation in elemental concentrations in sections through the Mine Mafic Package (Gazley, 2011;Gazley et al, 2011a;Vickery, 2004). Recently compiled geochemical cross-sections through the Mine Mafic Package show that there is no significant structural duplication of the package within the current mine workings (Gazley, 2011;Gazley et al, 2011aGazley et al, , 2012.…”

Section: Geological Settingmentioning

confidence: 99%

New age constraints on metamorphism, metasomatism and gold mineralisation at Plutonic Gold Mine, Marymia Inlier, Western Australia

Gazley

Vry

Millet

et al. 2016

Australian Journal of Earth Sciences

View full text Add to dashboard Cite

“…Portable/handheld XRF instruments are gaining popularity and have been applied widely and successfully to analyse drill cores in a non-destructive way (e.g. Gazley et al, 2011Gazley et al, , 2012Fisher et al, 2014;Le Vaillant et al, 2014;Ross et al, 2014). Advantages of the new instrument over handheld XRF instruments are a better and more representative coverage (continuous scanning vs. point analyses), reduced labour, standardised analytical conditions, integrated routines, and advanced data handling.…”

Section: Geoscientific Applicationsmentioning

confidence: 99%

An innovative optical and chemical drill core scanner

Sjöqvist¹,

Arthursson²,

Lundström³

et al. 2015

Sci. Dril.

View full text Add to dashboard Cite

Abstract. We describe a new innovative drill core scanner that semi-automatedly analyses drill cores directly in drill core trays with X-ray fluorescence spectrometry, without the need for much sample preparation or operator intervention. The instrument is fed with entire core trays, which are photographed at high resolution and scanned by a 3-D profiling laser. Algorithms recognise the geometry of the core tray, number of slots, location of the drill cores, calculate the optimal scanning path, and execute a continuous XRF analysis of 2 cm width along the core. The instrument is equipped with critical analytical components that allow an effective QA/QC routine to be implemented. It is a mobile instrument that can be manoeuvred by a single person with a manual pallet jack.

show abstract

Application of portable X-ray fluorescence analyses to metabasalt stratigraphy, Plutonic Gold Mine, Western Australia

Cited by 48 publications

References 20 publications

High-Resolution Physical Properties, Geochemistry, and Alteration Mineralogy for the Host Rocks of the Archean Lemoine Auriferous Volcanogenic Massive Sulfide Deposit, Canada

High-Resolution Physical Properties, Geochemistry, and Alteration Mineralogy for the Host Rocks of the Archean Lemoine Auriferous Volcanogenic Massive Sulfide Deposit, Canada

New age constraints on metamorphism, metasomatism and gold mineralisation at Plutonic Gold Mine, Marymia Inlier, Western Australia

An innovative optical and chemical drill core scanner

Contact Info

Product

Resources

About