LKSD-1 to LKSD-4 Certificate of Analysis

LKSD-1 to LKSD-4 are discontinued and no longer available for purchase.

Certified Reference Material: Lake Sediment Samples

Printable version of the certificate (PDF, 137.21 kb)

First Issued : April 1990
Version: April 1990

Source

LKSD-1 to LKSD-4 were chosen to represent typical lake sediments from various locations within the Canadian Shield. 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 various dredges and sampling devices both in winter and summer and normally from the centre lake bottom. 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.

Description

LKSD-1: This sample is a mixture of lots from Joe Lake (31F) and Brady Lake (31M) in Ontario.

LKSD-2: This sample is a mixture of a lot from Calabogie Lake (31F) in Ontario and a composite from 86K and 86L in the North West Territories. Composites were produced by mixing unused portions of regional survey samples collected in the corresponding NTS sheets.

LKSD-3: This sample is a mixture of a lot from Calabogie Lake (31F) in Ontario, a composite from 64L and 64M in Manitoba, and a composite from 31M, 31N, 32C, 32D, 41P, and 42A in Ontario.

LKSD-4: This sample is a composite from Big Gull Lake (31C) in Ontario and Key and Sea Horse Lakes (74H) in Saskatchewan.

Certified values

Thirty-five laboratories provided analytical data and provisionally certified values are given for 65 elements. Besides "total" values, the samples were also characterized for values relating to specific types of partial extractions wherein the sample is not totally dissolved, particularly the silicate components.

 

Provisional Values for Major and Minor Elements
Expressed as Per Cent Oxides
Constituent LKSD 1 LKSD 2 LKSD 3 LKSD 4
SiO2 40.1 58.9 58.5 41.6
Al2O3 7.8 12.3 12.5 5.9
Fe2O3 4.1 6.2 5.7 4.1
MgO 1.7 1.7 2.0 0.9
CaO 10.8 2.2 2.3 1.8
Na2O 2.0 1.9 2.3 0.7
K2O 1.1 2.6 2.2 0.8
MnO 0.1 0.3 0.2 0.1
TiO2 0.5 0.6 0.5 0.4
P2O5 0.2 0.3 0.2 0.3
LOI (1000°C) 29.9 13.6 13.4 43.6
SO4* 1.6 - - -
Sum 99.9 100.6 99.8 100.2

* One laboratory only.

Lake Sediments LKSD-1 to LKSD-4
Provisional Values for "Total" Elements µg/g (except where noted)
Constituent LKSD 1 LKSD 2 LKSD 3 LKSD 4 
Ag 0.6 0.8 2.7 <0.5
As 40 11 27 16
Au (ng/g) 5 3 3 2
B 49 65 25 22
Ba 430 780 680 330
Be 1.1 2.5 1.9 1.0
Br 11 18 16 49
C (%) 12.3 4.5 4.5 17.7
Ce 27 108 90 48
Co 11 17 30 11
Cr 31 57 87 33
Cs 1.5 3.0 2.3 1.7
Cu 44 37 35 31
Dy 3.4 7.3 4.9 3.7
Eu 0.9 1.9 1.5 1.1
F 300 590 490 260
Fe (%) 2.8 4.3 4.0 2.8
H2O (%) 2.92 2.23 2.07 6.55
Hf 3.6 7.0 4.8 2.8
La 16 68 52 26
Li 7 20 25 12
LOI (500°C) (%) 23.5 12.3 11.8 40.8
Lu 0.4 0.6 0.4 0.5
Mn 700 2020 1440 500
Mo 10 <5 <5 <5
Nb 7 8 8 9
Nd 16 58 44 25
Ni 16 26 47 31
Pb 82 44 29 91
Rb 24 85 78 28
S (%) 1.57 0.14 0.14 0.99
Sb 1.2 1.1 1.3 1.7
Sc 9 13 13 7
Sm 4 11 8 5
Sn 16 5 3 5
Sr 250 220 240 110
Ta 0.3 0.8 0.7 0.4
Tb 0.6 1.4 1.0 1.2
Th 2.2 13.4 11.4 5.1
Ti 3010 3460 3330 2270
U 9.7 7.6 4.6 31.0
V 50 77 82 49
W < 4 < 4 < 4 < 4
Y 19 44 30 23
Yb 2.0 4.0 2.7 2.0
Zn 331 209 152 194
Zr 134 254 178 105

 

Provisional Values for Partial Extraction Elements
Concentrated HNO3 - Concentrated HCl - µg/g (except where noted)
Constituent LKSD 1 LKSD 2 LKSD 3 LKSD 4
Ag 0.6 0.8 2.4 0.2
As 30 9 23 12
Cd 1.2 0.8 0.6 1.9
Co 9 17 30 11
Cr 12 29 51 21
Cu 44 36 34 30
Fe (%) 1.8 3.5 3.5 2.7
Hg (ng/g) 110 160 290 190
Mn 460 1840 1220 430
Mo 12 2 2 2
Ni 11 23 44 32
Pb 84 40 26 93
Sb 1.2 1.2 1.4 1.5
V 27 48 55 32
Zn 337 200 139 189

 

Provisional Values for Partial Extraction Elements
Dilute HNO3 - Dilute HCl - µg/g (except where noted)
Constituent LKSD 1 LKSD 2 LKSD 3 LKSD 4
Ag 0.6 0.8 2.8 0.2
Cd 1.2 0.6 0.4 1.9
Co 8 16 30 9
Cu 44 36 34 31
Fe (%) 1.8 3.7 3.6 2.6
Mn 410 1840 1300 420
Ni 12 23 46 31
Pb 83 34 21 91
Zn 335 205 151 195

For further information

A publication giving complete details on these lake sediment reference materials is available on request.

CCRMP, CanmetMINING
555 Booth Street
Ottawa, ON  K1A 0G1
Canada

Telephone: 613-995-4738
Facsimile: 613-943-0573
E-mail: Contact CCRMP

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