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.

CodeDetails
Code S1Drying (60°C) and sieving (-177 µm) save all portions
Code S1 DISDrying (60°C) and sieving (-177 µm), discard oversize
Code S1-230Drying (60°C) and sieving (-63 µm), save oversize
Code S1-230 DISDrying (60°C) and sieving (-63 µm), discard oversize
Code S2Lake bottom sediment preparation crush & sieve (-177 µm)
Code S3Alternate size fractions and bracket sieving, add
Code S4Selective Extractions or SGH drying (40oC) & sieving (-177 µm)
Code S5Wet or damp samples submitted in plastic bags, add
Code S6Separating -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 S8Sieve analysis (4 sieve sizes) coarser than 53 µm
Code S9Particle size analysis (laser)