Analytical Sample Bundle Metadata


GSC/TSD-1996-Point Lake 86H Till Canamera HMC and grain separation Diamond Indicator Processing HMC and grain separation

Type: lab data

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Bundle Description

47 till samples from the Point Lake mapsheet (NTS 86H) were processed by Canamera Geological Services, North Vancouver, BC, to obtain heavy mineral separates.  Samples were screened into two grain size fractions (0.25-0.5 mm and 0.5-1 mm).  Each fraction was then separated into magnetic/paramagnetic and non-magnetic fractions using a Permaroll separator.  The magnetic/paramagnetic fraction was then separated into light and heavy fractions using a Magstream separator.

The 47 samples were then sent to Diamond Indicator Processing of Thunder Bay, Ontario.  The samples were run through a magnetic separator to remove the magnetite, and then put through a heavy liquid separation using methyl iodide diluted with acetone (S.G 3.2).

Samples were collected in 1994 and processed in 1995.  Sample processing weights are reported in Appendix 2 of GSC Open File 3341.  Data are reported only for the 0.25-0.5 mm size fraction.

Sample Classification (Analytical)

IndexSample CountSurveySample TypePrep Lab MaterialControl RefUnknown SourceDuplicates count
47  Till sampling survey, Point Lake area, NTS 86H, Northwest Territories and Nunavut, 1994. (more) Till HMC separation (Canamera/DIP) No  No 

Analytical Package Description

Laboratory: Canamera Geological Ltd/Diamond Indicator Processing

Name: Canamera Geological Ltd. + Diamond Indicator Processing Sample processing and HMC separation (2 size fractions) (more)

Canamera Geological Ltd. Permaroll and Magstream separation of samples for paramagnetic/non-magnetic and light and heavy mineral fractions. Further processing of samples by Diamond Indicator Processing (Thunder Bay, Ontario) using a magnetic separator for magnetite removal and methylene iodide for mica removal using dilute methylene iodide (specific gravity 3.2) (0.25-0.5mm and 0.5-0.1 mm fractions).

Analytical Suites:

1  Canamera and Diamond Indicator Processing grain screening and Heavy Mineral Concentrates (0.25-0.5 mm, 0.5-1.0 mm).

Analytical Methods:

IndexColumn NameSuite OrderMethod OrderSuite RepeatQuantityUnitsDetermination Limit
1  Sample_Weight    Wt  grams  
2  Wt_Split_25_50    Wt  grams  
3  Wt_NFM_NPM_25_50    Wt  grams  
4  Wt_FM_PM_25_50    Wt  grams  
5  Wt_Lt_FM_PM_25_50    Wt  grams  
6  Wt_Hvy_FM_PM_25_50    Wt  grams  
7  Wt_Conc_Exam_25_50    Wt  grams  
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