Analytical Suite Metadata

GSC electron microprobe-Low-Cr Diopside Analysis

GSC electron microprobe Low-Cr Diopside analysis. Grains are analysed for 13 major and minor element oxides.

General Methodology:

Mineral analyses were acquired on a Cameca SX-50 microprobe fitted with 4 wavelength-dispersive spectrometers, with a take-off angle of 40 degrees.  The operating conditions were 20kV accelerating voltage and 10nA current, using a focused beam.  Count times were 10 seconds on peak and 5 seconds off-peak. A ZAF matrix correction program of Armstrong (1988) was used to process the raw data.  Reference standards used were a mixture of natural and synthetic pure metals, simple oxides and simple compounds.

A variable number of oxides were measured:

SiO2, TiO2, Al2O3, Cr2O3, FeO, MnO, NiO, MgO, CaO, BaO, Na2O, K2O, V2O3

Description taken from Open File 5692.


Armstrong, J.T. (1988). Quantitative analysis of silicates and oxide minerals: Comparison of Monte-Carlo, ZAF and Phi-Rho-Z procedures.  Microbeam Analysis, p 239-246.

Instrument: unstated

Sample material: solid

Sample weight: unstated

Analytical Technique:

Hierarchical classification

Technique >> Spectroscopy >> Electromagnetic radiation >> X-ray >> Emission >> Microprobe >> Electron



Analytical Decomposition:

Hierarchical classification

Decomposition >> None



Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  6079     Al2O3 
2  6084     CaO 
3  6080     Cr2O3 
4  6081     FeO 
5  6086     K2O 
6  6083     MgO 
7  6082     MnO 
8  6085     Na2O 
9  6090     NiO 
10  10  6077     SiO2 
11  11  6078     TiO2 
12  12  6088     V2O3 
13  13  6220     BaO 

Associated Analytical Packages:

IndexPackage IDPackage Name
1  234     GSC electron microprobe laboratory (13 oxides)
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