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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


https://doi.org/10.4225/08/57C8E0EE76B4E


14 Jun 2012


24 Oct 2014


Mark Pearce
Mark.Pearce@csiro.au

Maia detector element maps GeoPIXE Sunrise Dam Gold Mine


Collection:

Other colour combinations from GQ1943_3

Attribution

GQ1943_3_GeoPIXE_images_README.txt


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. https://doi.org/10.4225/08/57C8E0EE76B4E


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


WGS84


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


Analysis


XFM Beamline, Australian Synchrotron


Mark Pearce


Louise Fisher


Chris Ryan


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