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Table T10. Mean values for limestone reference materials analyzed by LiBO2 flux method, Expedition 321. (See table notes.)
|
Analyte
|
Wavelength
(nm)
|
CRM 393
reference
value
|
CRM 393
mean
(N = 7)
|
CRM 393
standard
deviation
|
CRM 393
RSD %
(1σ)
|
NIST 1c
reference
value
|
NIST 1c
mean
(N = 10)
|
NIST 1c
standard
deviation
|
NIST 1c
RSD %
(1σ)
|
|
Major element oxide (%):
|
|
SIO2
|
251.611
|
0.7
|
0.528
|
0.0124
|
2.36
|
6.84
|
7.93
|
0.366
|
4.62
|
|
Al2O3
|
308.215
|
0.12
|
0.152
|
0.00496
|
3.26
|
1.3
|
1.26
|
0.0184
|
1.46
|
|
Fe2O3 T
|
259.94
|
0.045
|
BD
|
|
|
0.55
|
0.675
|
0.0749
|
11.1
|
|
MnO2
|
257.61
|
0.01
|
0.00792
|
0.000505
|
6.37
|
0.025
|
0.0223
|
0.00468
|
21.0
|
|
MgO
|
285.213
|
0.15
|
0.137
|
0.00446
|
3.25
|
0.42
|
0.383
|
0.00997
|
2.60
|
|
CaO
|
317.933
|
55.4
|
53.9
|
0.839
|
1.56
|
50.3
|
50.3
|
1.70
|
3.39
|
|
Na2O
|
589.592
|
|
|
|
|
0.02
|
BD
|
|
|
|
K2O
|
769.897
|
0.02
|
BD
|
|
|
0.28
|
0.285
|
0.0252
|
8.85
|
|
TiO2
|
337.28
|
0.009
|
BD
|
|
|
0.07
|
0.0320
|
0.0150
|
46.7
|
|
P2O5
|
214.914
|
0.006
|
BD
|
|
|
0.04
|
0.0488
|
0.0195
|
39.9
|
|
Trace element (ppm):
|
|
Ba
|
455.403
|
53
|
BD
|
|
|
78
|
BD
|
|
|
|
Cr
|
267.716
|
|
|
|
|
17.4
|
BD
|
|
|
|
Sr
|
407.771
|
160
|
155
|
2.91
|
1.88
|
258
|
273
|
5.45
|
2.00
|
|
Y
|
360.073
|
|
|
|
|
4.1
|
BD
|
|
|
|
Zr
|
339.198
|
2.4
|
BD
|
|
|
23
|
27.5
|
4.14
|
15.1
|
Notes: Reference values are certified or preferred values from GeoREM database. RSD = relative standard deviation. BD = below detection.
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