Analytical Sample Bundle Metadata


GSC/TSD -1994-Lac de Gras 76D Till Esker: GSC Microprobe “Spinel”

Type: lab data

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Bundle Description

Indicator mineral grains picked by I and M Morrison of Delta BC from Lac De Gras (NTS 76D) samples collected in 1992 and 1993 were analysed by electron microprobe with the SPINEL routine at the GSC to confirm their mineral identities.

These data are published in GSC Open File 3079.

The 0.25-0.5 mm fraction of the 1992 samples were analysed before the GARNET routine was developed, thus the 0.25 mm to 0.5 mm samples from GSC Open Files 3079 and 3080 use the SILPYROX and SPINEL routines for mineral identification.

Sample Classification (Analytical)

IndexSample CountSurveySample TypePrep Lab MaterialControl RefUnknown SourceDuplicates count
116  Till sampling survey, Lac de Gras area, NTS 76D, Northwest Territories, 1992 and 1993. (more) Till Grain Mount: 0.25 – 0.50 mm No  No  115 

Analytical Package Description

Laboratory: GSC: Microprobe Laboratory, Geological Survey of Canada, Ottawa

Name: GSC electron microprobe (13 oxides) “SPINEL” (more)

GSC electron microprobe “SPINEL” routine

Analytical Suites:

1  GSC electron microprobe – “SPINEL” routine

Analytical Methods:

IndexColumn NameSuite OrderMethod OrderSuite RepeatQuantityUnitsDetermination Limit
1  Al2O3    Al2O3  percent 0.001  
2  CaO    CaO  percent 0.001  
3  CoO    CoO  percent 0.001  
4  Cr2O3    Cr2O3  percent 0.001  
5  FeO    FeO  percent 0.001  
6  MgO    MgO  percent 0.001  
7  MnO    MnO  percent 0.001  
8  NiO    NiO  percent 0.001  
9  SiO2    SiO2  percent 0.001  
10  SO3  10    SO3  percent 0.001  
11  TiO2  11    TiO2  percent 0.001  
12  V2O3  12    V2O3  percent 0.001  
13  ZnO  13    ZnO  percent 0.001  
14  Total  14    Total Oxides  percent  
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