GeoPIXE element maps of samples GQ1943_2 and GQ1943_3

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About this Collection

GeoPIXE element maps of samples GQ1943_2 and GQ1943_3

A series of element maps collected using the Maia 384 detector array on the XFM beamline at the Australian Synchrotron. Maps are RGB composites (indicated by file name) or a combination of black and white intensity with RGB. Lower resolution versions of these files are used in a paper on the application of microanalysis techniques in ore geology an... more

Ore Deposit Petrology

14 Jun 2012

24 Oct 2014

Mark Pearce

Maia detector element maps GeoPIXE Sunrise Dam Gold Mine


Other colour combinations from GQ1943_3



X-ray spectra were collected using the Maia 384 detector on the XFM beamline at the Australian Synchrotron. The spectral data were collected with an incident beam energy of 18.5 keV, a pixel size of 4 µm and dwell times per pixel of 0.97 msec. The Maia XFM full spectral data were analysed using the GeoPIXE software suite which uses a fundamental parameters approach, with spectral deconvolution and imaging using the Dynamic Analysis method based on fitting a representative total spectrum, and a detailed model of Maia detector array efficiency. Spectra are fitted using a X-ray line relative intensities that reflect integration of yields and X-ray self-absorption effects for the given matrix or mineral phase and the contrasting efficiency characteristics across the detector array. The result is a matrix transformation that allows projection of the full-spectral data into element maps in this collection.

This research was undertaken on the X-ray Fluorescence Microscopy beamline at the Australian Synchrotron, Victoria, Australia. This work was supported by AngloGold Ashanti.

CSIRO Data Licence

CSIRO (Australia)

Pearce, Mark; Fisher, Louise; Ryan, Chris (2016): GeoPIXE element maps of samples GQ1943_2 and GQ1943_3. v2. CSIRO. Data Collection.

All Rights (including copyright) CSIRO 2016.

The metadata and files (if any) are available to the public.

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Location Details

29°4′60″ S

122°25′0″ E


About this Project

1160.3 Sunrise DAM 3D Geochem

3D characterisation of geochemical variations at Sunrise Dam Gold Mine

Louise Fisher

Synchrotron XRF mapping

Geochemical mapping of 1 mm thick rock slices using the XFM beamline at the Australian Synchrotron


XFM Beamline, Australian Synchrotron

Mark Pearce

Louise Fisher

Chris Ryan

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