Sample:
|
Site 321 average
|
201-1231B-14X-1,
0-2 cm |
Standard BIR1
|
SRM reported value
|
---|---|---|---|---|
Major element oxide (wt%): |
|
|
|
|
SiO2 | 50.32 | 48.73 | 47.93 | 47.96 |
TiO2 | 2.37 | 2.64 | 0.98 | 0.96 |
Al2O3 | 12.86 | 14.1 | 15.43 | 15.5 |
Fe2O3* | 14.54 | 15.72 | 11.25 | 11.3 |
MnO | 0.18 | 0.21 | 0.16 | 0.18 |
MgO | 5.91 | 5.11 | 9.24 | 9.7 |
CaO | 10.4 | 9.96 | 13.05 | 13.3 |
Na2O | 2.5 | 2.49 | 1.71 | 1.82 |
K2O | 0.17 | 0.53 | 0.02 | 0.03 |
P2O5 |
|
0.27 | 0.02 | 0.02 |
LOI |
|
3 | 2 |
|
Total | 99.25 | 99.76 | 99.79 | 100.77 |
Trace element (ppm): |
|
|
|
|
Ba |
|
18 | 7 | 7 |
Ni |
|
41 | 147 | 170 |
Sc |
|
43 | 40 | 44 |
Cr |
|
89 | 356 | 370 |
Cu |
|
70 | 116 | 125 |
Dy |
|
9.85 | 2.61 | 4 |
Ce |
|
18.1 | 3.7 | 1.9 |
Co |
|
37.9 | 56.1 | 52 |
Eu |
|
2.04 | 0.49 | 0.55 |
Gd |
|
8.42 | 1.98 | 1.8 |
Hf |
|
4.7 | <0.5 | 0.6 |
Nd |
|
17.8 | 2.7 | 2.5 |
La |
|
7.3 | 0.8 | 0.63 |
Li |
|
|
|
|
Sr |
|
103.3 | 108.7 | 110 |
V |
|
472 | 337 | 310 |
Y |
|
60.3 | 17.1 | 16 |
Zn |
|
119 | 51 | 70 |
Zr |
|
151.5 | 13.7 | 18 |
SRM informational values (ppm): |
|
|
||
As |
|
1.5 | 0.6 | 0.44 |
B |
|
|
|
|
Be |
|
|
|
|
Cl |
|
|
|
|
F |
|
|
|
|
Ga |
|
20.8 | 16.1 | 16 |
Lu |
|
0.92 | 0.27 | 0.26 |
Nb |
|
4.5 | <0.5 | 0.6 |
Pb |
|
0.8 | 4.5 | 3 |
Sb |
|
0.1 | 0.5 | 0.58 |
Sm |
|
6.7 | 1.2 | 1.1 |
Additional elements (ppm): |
|
|
|
|
C |
|
0.04 |
|
|
S |
|
<0.01 |
|
|
Mo |
|
0.3 | <0.1 |
|
Cd |
|
<0.1 | <0.1 |
|
Bi |
|
<0.1 | <0.1 |
|
Ag |
|
<0.1 | <0.1 |
|
Au (ppb) |
|
6.8 | 2.4 |
|
Hg |
|
<0.01 | <0.01 |
|
Tl |
|
0.1 | <0.1 |
|
Cs |
|
0.5 | <0.1 |
|
Rb |
|
11.5 | <0.5 |
|
Sn |
|
2 | <1 |
|
Ta |
|
0.4 | <0.1 |
|
Th |
|
0.4 | <0.1 |
|
U |
|
0.5 | <0.1 |
|
W |
|
<0.1 | <0.1 |
|
Pr |
|
3.21 | 0.41 |
|
Ho |
|
2.18 | 0.6 |
|
Tb |
|
1.49 | 0.37 |
|
Er |
|
6.65 | 1.78 |
|
Tm |
|
0.97 | 0.27 |
|
Yb |
|
6.32 | 1.61 |
|
Notes: SRM = standard reference material., BIR-1 = USGS Icelandic basalt SRM, Leg 112 analyses are reported in Bunch and LaBorde (1976). Leg 201 analysis were conducted by inductively coupled plasma (ICP)-atomic emission spectrophotometry (major element oxides and Ba, Ni, Sc, and Cr) and ICP-mass spectrophotometry (all other trace elements). Leg 201 analysis were performed by Acme Labs, Vancouver, BC. The SRM was included in analytical suite as an unknown.