Analytical Suite Metadata

GSC electron microprobe (12 or 15 oxides)



Geological Survey of Canada electron microprobe analysis-Samples are analysed for a number of different 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 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:

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

15: SiO2, TiO2, Al2O3, Cr2O3, V2O3, FeO, MnO, NiO, MgO, CaO, Nb2O5, CoO, ZnO, SO3, As2O3

The 15 oxide routine was used for chromite analyses.

 

Instrument: unstated

Sample material: solid

Sample weight: unstated


Analytical Technique:

Hierarchical classification

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

Children

None


Analytical Decomposition:

Hierarchical classification

Decomposition >> None

Children

None


Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  6079     Al2O3 
2  6127     As2O3 
3  6084     CaO 
4  6129     CoO 
5  6080     Cr2O3 
6  6081     FeO 
7  6086     K2O 
8  6083     MgO 
9  6082     MnO 
10  10  6085     Na2O 
11  11  6128     Nb2O5 
12  12  6090     NiO 
13  13  6077     SiO2 
14  14  6089     SO3 
15  15  6078     TiO2 
16  16  6088     V2O3 
17  17  6087     ZnO 
18  18  6091     Total 

Associated Analytical Packages:

IndexPackage IDPackage Name
1  183     GSC electron microprobe (12 or 15 oxides)
Date modified: