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Dr Mark Aylmore, recently appointed to take on the role of Applied Mineralogist in the Jd LC, chaired the workshop that included presentations from: • Dr Kamran Khajehpour (AXT), who gave an overview of automated mineralogy and supported by Esben Kjaer (Struers) who gave a brief overview on sample preparation techniques. • Prof Brent Mc Innes (Curtin Jd LC), who demonstrated the applications of the TIMA to Archeology, Petrology, Geochemical Mapping, and the Characterisation of Mineral & Petroleum Systems. Potassium is a common element found in many materials, such as micas, clay minerals, tephra, and evaporites.In these materials, the decay product Ar is able to escape the liquid (molten) rock, but starts to accumulate when the rock solidifies (recrystallizes).Welcome to the first edition of Wavelength – A quarterly newsletter dedicated to highlighting the latest news and research produced from Curtin’s X-ray characterisation facilities, namely the X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and small angle X-ray scattering (SAXS) facilities. As a special first edition feature, we have included an entire page that highlights the basic instrument capabilities of each facility.

Thus, the ratio of argon-40 and potassium-40 and radiogenic calcium-40 to potassium-40 in a mineral or rock is a measure of the age of the sample.Time since recrystallization is calculated by measuring the ratio of the amount of The quickly cooled lavas that make nearly ideal samples for K–Ar dating also preserve a record of the direction and intensity of the local magnetic field as the sample cooled past the Curie temperature of iron.The geomagnetic polarity time scale was calibrated largely using K–Ar dating.DOWNLOAD THE NEWSLETTER Curtin University researchers have for the first time been able to visualise where helium atoms are trapped within individual mineral grains, providing information that can help to determine the geological history of the Earth’s crust and assist in monitoring natural hazards like earthquakes and volcanic eruptions. November to demonstrate the application and benefits of automated mineralogy to the minerals industry and academic research. Ar (argon), the atom typically remains trapped within the lattice because it is larger than the spaces between the other atoms in a mineral crystal.But it can escape into the surrounding region when the right conditions are met, such as change in pressure and/or temperature.Around 35 people from various research institutions, service providers and the mining industry attended the workshop from across Australia. The day started with a tour of the John de Laeter Centre (Jd LC) facilities incorporating the Tescan integrated mineral analyser (TIMA; ), which was the key instrument of relevance to the workshop. Adulteration includes, but is not limited to, lipstick, stickers, white out, perfumes, and other unknown foreign substances.Issues that the appointing authority considers, before recommending discipline, which may justify lesser or greater discipline for a particular offense.

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