I encounter persistent difficulties in analysing the Fe-Ca-Mn garnets
(about 1/3 of each component) that are common on the NZ Southern Alps
(usually I get about 103% totals). I suspect that the problem is in
the matrix correction factors, but that is not easy for me to sort
out.
I wonder if using a garnet standard of similar composition might help...
(I don't have such a standard)
Any suggestions as to how I might deal with the problem would be appreciated.
The probe (a 20+ year-old JEOL JXA-733 SuperProbe, using Moran
Scientific software) works wonderfully except for this.
Julie Vry
--
Dr. Julie Vry
Senior Lecturer - Geology (metamorphic petrology)
School of Earth Sciences
Victoria University
PO Box 600
Wellington, New Zealand
phone, office: 64 4 463 6432 (please do NOT leave messages here)
please leave messages at: 025 644 5598
fax 64 4 463 5186
email: [log in to unmask]
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