Table T1. Trace element composition of USGS rock powders from INAA analyses.

USGS standard
rock powder
Sc
(µg/g)
Cr
(µg/g)
Fe
(mg/g)
Co
(µg/g)
Zn
(µg/g)
As
(µg/g)
Rb
(µg/g)
Sr
(µg/g)
Sb
(µg/g)
Cs
(µg/g)
Ba
(µg/g)
La
(µg/g)
Ce
(µg/g)
Sm
(µg/g)
Eu
(µg/g)
Tb
(µg/g)
Yb
(µg/g)
Lu
(µg/g)
Hf
(µg/g)
Ta
(µg/g)
Th
(µg/g)
BHVO-1 basalt 32.7 284 84.7 45.1 109 0.4 16 420 0.18 <0.6 128 16.5 36 6.02 2.36 0.86 1.95 0.27 1.2
BHVO-1 basalt 31.5 288 88.3 45.2 115 <1 10 446 0.16 <0.3 143 15.9 34 6.00 2.04 0.83 1.91 0.26 4.4 1.22 1.3
BHVO-1 basalt 31.5 306 87.4 46.1 103 0.6 15 474 0.15 <0.3 151 16.0 40 6.21 2.27 0.94 1.92 0.28 4.3 1.02 1.3
BHVO-1 recommended 31.8 289 85.5 45 105 0.4 11 403 0.16 0.13 139 15.8 39 6.2 2.06 0.96 2.02 0.291 4.38 1.23 1.1
G-2 granite 3.5 8 18.7 5.5 86 <0.9 173 465 0.14 1.31 1927 96.6 152 7.40 1.52 0.60 0.75 0.11 7.6 0.76 25.8
G-2 granite 3.3 8 18.2 5.2 78 <0.6 167 496 0.1 1.34 1856 87.4 142 7.11 1.28 0.48 0.69 0.09 7.8 0.76 25.0
G-2 granite 3.3 7 18.4 5.2 77 <0.6 169 488 0.096 1.34 1848 90.6 165 7.41 1.46 0.45 0.75 0.11 7.9 0.85 24.9
G-2 recommended 3.5 9 18.6 4.6 86 0.25 170 478 0.07 1.34 1882 89 160 7.2 1.4 0.48 0.8 0.11 7.9 0.88 24.7

Notes: recommended values for BHVO-1 basalt and G-2 granite are given by Govindaraju (1989). — = no data.