Analytical Suite Metadata

I and M Morrison grain picking and visual mineral identification (microprobe counts)



I and M Morrison grain picking and visual mineral identification. The size fraction is picked for several indicator minerals including pyrope garnet, eclogitic garnet, chrome diopside, magnesian ilmenite.  Surfaces of grains are examined for kelyphite rims and resorption surfaces.

Note: the reported mineral identifications are based on subsequent electron microprobe analyses, not the original visual identification.

General Methodology:

I and M Morrison received heavy mineral concentrates in one or more size fractions.  Possible size fractions are dependent on the laboratory that did the heavy mineral separation and include

  • 0.25 - 0.5 mm
  • 0.5 - 0.84 mm
  • 0.5 - 1.0 mm
  • 1 - 2 mm

The smallest (0.25-0.5 mm) fraction is always picked for indicator minerals.  Larger size fractions may be picked, depending on the project.  Picking of the larger size fractions may be dependent on the picking results of the smaller fraction for a given field sample.  If no indicator minerals are retrieved from the smaller size fraction then picking of the larger size fraction may be foregone.

The mineral grains are examined for kelyphite rims and resorption surfaces.

 

Instrument: unstated

Sample material: solid

Sample weight: unstated


Analytical Technique:

Hierarchical classification

Technique >> Physical techniques >> Mineral identification >> Visual >> Binocular microscope

Children

None


Analytical Decomposition:

Hierarchical classification

Decomposition >> None

Children

None


Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  6056     Prp 
2  6057     Alm 
3  6058     Sps 
4  6059     Grs 
5  6060     Adr 
6  6061     St 
7  6062     Hi_Cr_Di 
8  6063     Cr_Di 
9  6064     Lo_Cr_Di 
10  10  6065     Amp 
11  11  6066     Tur 
12  12  6067     Hem 
13  13  6068     Rt 
14  14  6069     Lcx 
15  15  6070     Ilm 
16  16  6071     Mg_Ilm 
17  17  6072     Chr 
18  18  6073     Spl 
19  19  6074     Ti_Mag 
20  20  6288     Ap 
21  21  6289     Pph 
22  22  6290     Aug 
23  23  6291     Crn 
24  24  6292     Qz 
25  25  6293     En 
26  26  6111     Pl 
27  27  6112     Zo 
28  28  6101     Mln 
29  29  6100     Clb 
30  30  6355     Hd 
31  31  6148     Mnz 
32  32  6107     Ol 
33  33  6105     Di 
34  34  6108     Zrn 
35  35  6109     Ep 
36  36  6294     Unidentified 
37  37  6295     Missed_Grain 
38  38  6075     Total 
39  39  6076     KIM_Total 

Associated Analytical Packages:

IndexPackage IDPackage Name
1  166     I and M Morrison mineral identification 0.25-0.5 mm fraction; conditional 0.5-1.0 mm fraction identification
2  167     I and M Morrison mineral identification 0.25-0.5 mm fraction; conditional 0.5-1 mm and 1-2 mm fraction identification
3  169     I and M Morrison mineral identification 0.25-0.5 mm fraction, occasional 0.5-1 mm fraction identification
4  173     I and M Morrison mineral identification. 0.25-0.5 mm fraction
5  176     I and M Morrison mineral identification. 0.25-0.5 mm, 0.5-1 mm fraction
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