Authors / CoAuthors
Webber, E.
Abstract
Homogeneity Tests for a Rotary Sample Divider Two rock types, a coarse-grained granite and a finer-grained volcanic rock, were used to test a Rotary Sample Divider attached to a Rocklabs Boyd Crusher for homogeneity. Approximately 3kg of each rock type were broken down by a jaw crusher, and then processed through a Boyd Crusher with splits taken using the attached rotary sample divider. The formula 10/(100-(10*n))-where n=the number of the split-was used to process the entire sample, i.e., 10% of the first split was taken and remainder returned to the Boyd crusher; 11% of the second split taken and remainder returned to the crusher; 12.5% of the 3rd one taken and remainder returned to the Boyd crusher etc., until all the sample was used and there were 10 roughly equal splits. Each split was halved and each half pulverised for 3 minutes in a Tungsten Carbide ring mill for 3 minutes. Pressed powder pellets and Lithium Borate glasses were made and analysed using a PW2404 XRF spectrometer. Results of major and trace element analysis shows that there is no apparent bias between either individual splits or from the first split to the last split, indicating homogeneity was achieved using the rotary sample divider.
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nonGeographicDataset
eCat Id
74096
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
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2601
Australia
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- GA PublicationPoster/Image
- ( Theme )
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- geochemistry
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
Publication Date
2012-05-15T00:00:00
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geoscientificInformation
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