Table S1.

Tungsten isotope compositions of terrestrial metal standard NIST129c determined by MC-ICPMS

Standard ID	ε182W (6/3)meas.*, ±2 SE	ε182W (6/4)meas.*, ±2 SE	ε183W (6/4)meas.*, ±2 SE	ε184W (6/3)meas.*, ±2 SE
S04	0.07 ± 0.04	0.03 ± 0.04	−0.03 ± 0.04	0.02 ± 0.03
S04	0.04 ± 0.04	−0.01 ± 0.04	−0.04 ± 0.03	0.03 ± 0.02
S04	−0.04 ± 0.04	−0.06 ± 0.04	−0.02 ± 0.03	0.01 ± 0.02
S04	0.00 ± 0.04	0.02 ± 0.04	0.01 ± 0.04	−0.01 ± 0.02
S04	−0.01 ± 0.08	−0.02 ± 0.09	−0.01 ± 0.07	0.00 ± 0.05
S04	−0.04 ± 0.08	−0.02 ± 0.09	0.01 ± 0.08	−0.01 ± 0.05
S04	0.03 ± 0.07	0.08 ± 0.08	0.04 ± 0.06	−0.02 ± 0.04
S04	0.02 ± 0.09	0.05 ± 0.09	0.02 ± 0.07	−0.01 ± 0.05
S04	0.09 ± 0.07	0.06 ± 0.09	−0.02 ± 0.07	0.01 ± 0.05
S04	−0.01 ± 0.08	−0.03 ± 0.08	−0.01 ± 0.07	0.01 ± 0.05
S04	−0.02 ± 0.07	−0.01 ± 0.08	0.01 ± 0.07	−0.01 ± 0.05
S04	0.02 ± 0.07	−0.01 ± 0.08	−0.03 ± 0.06	0.02 ± 0.04
S04	−0.01 ± 0.07	−0.09 ± 0.08	−0.06 ± 0.06	0.04 ± 0.04
S04	0.05 ± 0.07	0.00 ± 0.08	−0.04 ± 0.07	0.03 ± 0.04
S04	0.06 ± 0.07	0.01 ± 0.08	−0.04 ± 0.06	0.03 ± 0.04
S04	−0.03 ± 0.07	0.05 ± 0.08	0.06 ± 0.06	−0.04 ± 0.04
S04	0.02 ± 0.07	0.05 ± 0.09	0.03 ± 0.07	−0.02 ± 0.05
T07	−0.01 ± 0.06	0.02 ± 0.06	0.03 ± 0.06	−0.02 ± 0.04
T07	−0.01 ± 0.06	−0.01 ± 0.07	0.00 ± 0.06	0.00 ± 0.04
T07	0.06 ± 0.06	0.04 ± 0.07	−0.01 ± 0.06	0.01 ± 0.04
T07	0.08 ± 0.07	0.07 ± 0.06	−0.01 ± 0.06	0.01 ± 0.04
T07	0.18 ± 0.06	0.08 ± 0.07	−0.07 ± 0.06	0.05 ± 0.04
Z08	0.04 ± 0.05	0.05 ± 0.06	0.01 ± 0.05	0.00 ± 0.04
Z08	0.08 ± 0.05	−0.05 ± 0.06	−0.09 ± 0.05	0.06 ± 0.03
Z08	0.06 ± 0.05	0.02 ± 0.06	−0.03 ± 0.05	0.02 ± 0.03
Z08	−0.01 ± 0.05	0.00 ± 0.06	0.00 ± 0.05	0.00 ± 0.03
Z08	0.09 ± 0.05	0.08 ± 0.06	−0.01 ± 0.05	0.00 ± 0.03
Z08	0.10 ± 0.05	0.02 ± 0.06	−0.06 ± 0.05	0.04 ± 0.03
Z08	0.03 ± 0.06	0.08 ± 0.05	0.04 ± 0.05	−0.03 ± 0.04
Z08	−0.04 ± 0.05	−0.09 ± 0.06	−0.04 ± 0.05	0.02 ± 0.03
Z08	0.00 ± 0.05	−0.10 ± 0.06	−0.07 ± 0.05	0.05 ± 0.03
AG04	0.01 ± 0.07	0.01 ± 0.07	0.00 ± 0.07	0.00 ± 0.04
AG04	0.07 ± 0.08	0.00 ± 0.07	−0.05 ± 0.07	0.03 ± 0.04
AG04	0.15 ± 0.06	0.06 ± 0.08	−0.07 ± 0.07	0.05 ± 0.04
AG04	0.02 ± 0.07	0.10 ± 0.07	0.06 ± 0.07	−0.04 ± 0.04
AG04	0.00 ± 0.07	0.00 ± 0.07	0.00 ± 0.07	0.00 ± 0.04
SG	0.02 ± 0.05	0.00 ± 0.07	−0.01 ± 0.05	0.01 ± 0.03
SG	0.01 ± 0.05	−0.01 ± 0.07	−0.01 ± 0.05	0.01 ± 0.03
SG	−0.02 ± 0.05	−0.05 ± 0.07	−0.02 ± 0.05	0.01 ± 0.03
SG	−0.05 ± 0.05	0.03 ± 0.08	0.06 ± 0.05	−0.04 ± 0.03
SG	0.02 ± 0.05	0.02 ± 0.07	0.00 ± 0.05	0.00 ± 0.03
BW09	0.02 ± 0.06	−0.07 ± 0.07	−0.07 ± 0.05	0.04 ± 0.03
BW09	0.03 ± 0.06	0.02 ± 0.07	−0.01 ± 0.05	0.00 ± 0.03
BW09	0.10 ± 0.06	0.02 ± 0.08	−0.06 ± 0.05	0.04 ± 0.03
BW09	0.12 ± 0.06	0.02 ± 0.08	−0.07 ± 0.05	0.05 ± 0.03
BW09	0.08 ± 0.08	0.04 ± 0.08	−0.03 ± 0.06	0.02 ± 0.04
CF10	0.15 ± 0.06	−0.03 ± 0.06	−0.13 ± 0.05	0.09 ± 0.03
CF10	0.06 ± 0.06	−0.01 ± 0.07	−0.05 ± 0.06	0.03 ± 0.04
CC10	0.11 ± 0.06	0.04 ± 0.06	−0.05 ± 0.07	0.03 ± 0.04
CC10	−0.02 ± 0.05	0.06 ± 0.06	0.06 ± 0.05	−0.04 ± 0.04
CC10	0.06 ± 0.05	0.07 ± 0.06	0.01 ± 0.06	0.00 ± 0.04
CC10	0.06 ± 0.05	0.02 ± 0.06	−0.03 ± 0.06	0.02 ± 0.04
Mean, n = 53
±2 SD	0.04 ± 0.11	0.01 ± 0.09	−0.02 ± 0.08	0.01 ± 0.05
±95% conf. limit	0.04 ± 0.01	0.01 ± 0.01	−0.02 ± 0.01	0.01 ± 0.01

Uncertainties represent 2 SE obtained from within-run statistics.

^*Internally normalized to ¹⁸⁶W/¹⁸³W = 1.98594 or to ¹⁸⁶W/¹⁸⁴W = 0.92767.