Analytical Sample Bundle Metadata


GSC/TSD-1997- Contwoyto Lake 76E South Till:  GSC ODM Gold Grain Counts

Type: lab data

Bundle Download

Download analytical data for this bundle in one of three formats, depending on the desired convention for treating values below the lower detection limit:

Bundle Description

27 till samples collected in 1994 from Contwoyto Lake (NTS 76E South) were picked for gold grains by Overburden Drilling Management, Ottawa, Ontario in 1995. Samples were disaggregated in water and sieved to < 0.25 mm. Heavy minerals were concentrated using a shaking table. The HMC concentrate was panned and gold grains were counted and classified based on their shape.

Gold grain data are available in GSC Open File 3387.

Sample Classification (Analytical)

IndexSample CountSurveySample TypePrep Lab MaterialControl RefUnknown SourceDuplicates count
27  Till sampling survey, Contwoyto Lake area, NTS 76E, Northwest Territories and Nunavut, 1994. (more) Till HMC separation (ODM; details not reported) No  No 

Analytical Package Description

Laboratory: Overburden Drilling Management, Ottawa, Ontario (ODM)

Name: ODM VG counts and estimated concentrations (more)

Overburden Drilling Management visible gold grain counts.  Gold grains are recovered by panning, and gold concentrations in the heavy mineral concentrate are estimated.

Analytical Suites:

1  ODM VG count
2  ODM – calculated gold concentrations

Analytical Methods:

IndexColumn NameSuite OrderMethod OrderSuite RepeatQuantityUnitsDetermination Limit
1  VG_tot    VG Tot  count  
2  VG_reshaped    VG Reshaped  count  
3  VG_modif    VG Modified  count  
4  VG_pristin    VG Pristine  count  
5  VG_HMC_Wt    Wt  grams  
6  VG_tot_ppb    Au  ppb  
7  VG_reshaped_ppb    Au  ppb  
8  VG_modif_ppb    Au  ppb  
9  VG_pristin_ppb    Au  ppb  
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