STSD-1 to STSD-4 are discontinued and no longer available for purchase.
Certified Reference Material: Stream Sediment
Printable version of the certificate (PDF, 59.20 kb)
First issued: 1990
STSD-1 to STSD-4 were chosen to represent typical stream sediments from various geochemical environments in Canada. Efforts were made to incorporate a range of concentrations for a substantial number of elements. Collection was carried out by the Geological Survey of Canada using shovels and by hand. The samples were prepared, blended and bottled at CANMET. Information on each sample follows. The National Topographic System (NTS) for identifying maps in Canada is used.
STSD-1: This sample is a single lot from Lavant Creek (31F) in Ontario.
STSD-2: This sample is a mixture of a lot from Hirok Stream (104P) and a composite lot from 93A and 93B; both lots are from British Columbia. Composites were produced by mixing unused portions of regional survey samples collected in the corresponding NTS sheets.
STSD-3: This sample is made from the same lots as STSD-2 with the addition of a lot from Lavant Creek (31F) in Ontario.
STSD-4: This sample is made from a mixture of a lot which is a composite sample from 31F in Ontario and a lot from the same composite from British Columbia used for STSD-2.
Thirty-five laboratories provided analytical data and provisionally recommended values are given for 65 elements. Besides “total” values, the samples were also characterized for values relating to specific types of partial extraction wherein the sample is not totally dissolved, particularly the silicate components. Geochemists and environmental scientists frequently perform this type of analysis, and these reference samples should prove useful to them.
CanmetMINING has prepared this reference material and statistically evaluated the analytical data of the interlaboratory certification program to the best of its ability. The purchaser, by receipt hereof, releases and indemnifies the CanmetMINING from and against all liability and costs arising out of the use of this material and information.
A publication giving complete details on these stream sediment reference materials is available upon request.
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