SOILS, STREAM AND LAKE BOTTOM SEDIMENTS, HEAVY MINERALS
Soil, stream and lake bottom sediments are dried at lower temperatures to avoid loss of volatile elements. Sample preparation is done based on specific method requests.
| Code | Details |
|---|---|
| Code S1 | Drying (60°C) and sieving (-177 µm) save all portions |
| Code S1 DIS | Drying (60°C) and sieving (-177 µm), discard oversize |
| Code S1-230 | Drying (60°C) and sieving (-63 µm), save oversize |
| Code S1-230 DIS | Drying (60°C) and sieving (-63 µm), discard oversize |
| Code S2 | Lake bottom sediment preparation crush & sieve (-177 µm) |
| Code S3 | Alternate size fractions and bracket sieving, add |
| Code S4 | Selective Extractions drying (40°C) & sieving (-177 µm) |
| Code SGH-1 | SGH drying (40°C) & sieving (-177 µm) |
| Code S5 | Wet or damp samples submitted in plastic bags, add |
| Code S6 | Separating -2 micron material |
| Code S7mi | Methylene iodide heavy mineral separation specific gravity can be customized (100 grams) |
| Code S7w | Sodium polytungstate heavy mineral separation specific gravity can be customized (100 grams) |
| Code S8 | Sieve analysis (4 sieve sizes) coarser than 53 µm |
| Code S9 | Particle size analysis (laser) |
