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IOS Services Geoscientifiques/Laval University electron microprobe analysis (Garnrg, Ilmerg, Pyrorg, Olivpm)



IOS Services Geoscientifiques/Laval University electron microprobe analysis – analysis for major and minor oxides using the Garnrg, Ilmerg, Pyrorg and Olivpm routines.

General Methodology:

IOS Services Geoscientifiques/Laval University Electron Microprobe Analysis. Grains of interest are analyzed at Laval University using the Cameca SX-100 1998 Sun-based electron microprobe analyzer. Grains are analyzed as closely to the core as possible; away from cracks, inclusions exsolutions and alteration. Calibrations were done using pure oxides and verified with commercial standards. Microbe specifications and routines established by IOS in 1998 were mineral specific – the table below summarizes the operating conditions and the oxides analyzed with the different probe settings:

Program Operating Current Operating Voltage Probe Time Oxides Analyzed
Garnrg 50 nA 15 kV 20 sec

SiO2, TiO2, Al2O3, Cr2O3, Fe2O3, MgO, CaO, MnO, FeO, Na2O, K2O

Ilmerg 40 nA 15 kV 10 sec

SiO2, TiO2, Al2O3, Cr2O3, Fe2O3, Nb2O3, MgO, CaO, MnO, FeO, ZnO, Na2O

Pyrorg 50 nA 15 kV 10 sec

SiO2, TiO2, Al2O3, Cr2O3, Fe2O3, MgO, CaO, MnO, FeO, Na2O, K2O

 

 

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  6258     SiO2_Laval 
2  6259     TiO2_Laval 
3  6260     Al2O3_Laval 
4  6261     Cr2O3_Laval 
5  6262     Fe2O3_Laval 
6  6263     MgO_Laval 
7  6264     CaO_Laval 
8  6265     MnO-Laval 
9  6266     FeO_Laval 
10  10  6267     Na2O_Laval 
11  11  6268     K2O_Laval 
12  12  6269     ZnO_Laval 
13  13  6270     Nb2O5_Laval 
14  14  6271     Total_Laval 

Associated Analytical Packages:

IndexPackage IDPackage Name
1  199     IOS Services Geoscientifiques/Laval University Electron Microprobe Analysis (Garnrg, Ilmerg, Pyrorg, Olivpm)
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