Table 4.

Li isotopic compositions of standard reference materials.

Sample ID	Sample type	δ7Li (%0)	2SD (%0)	95% c.i. (%0)	n
JG-2	Granite	0.30	0.20	0.12	5
JR-2	Rhyolite	4.23	0.34	0.21	5
BHVO-2	Basalt	4.46	0.42	0.26	5
BCR-2	Basalt	3.88	0.36	0.29	4
JB-2	Basalt	4.70	0.15	0.12	4
JA-2	Andesite	1.25	0.10	0.08	4
AGV-2	Andesite	6.76	0.64	0.33	6
IAPSO	Seawater	31.62	0.22	0.18	4
JCp-1	Aragonite	16.74	0.71	0.44	5

n corresponds to “number of measurements”.