Table 1.

Oxygen isotope data (SMOW-SLAP scaled) of evaporation experiment waters and natural samples.

		Sample	δ′17O	±(1 sd)	δ′18O	±(1 sd)	17O-excess	±(1 sd)	n	cond.	TDS
			(‰)	(‰)	(‰)	(‰)	(per meg)	(per meg)		(mS/cm)	(g/l)
		experiments
tap water		exp L0	−6.682	0.165	−12.677	0.322	11	6	4	—	0.2
		exp L1	−4.446	0.116	−8.440	0.237	10	9	4	—	0.2
		exp L2	−3.492	0.189	−6.606	0.388	−3	16	4	—	0.3
		exp L3	−1.040	0.100	−1.957	0.201	−7	6	4	—	0.3
		exp L4	−0.832	0.270	−1.561	0.513	−7	5	7	—	0.4
		exp L5	1.455	0.203	2.807	0.380	−26	7	6	—	0.4
low-TDS water		exp LS0 (pond 8)	−2.011	0.658	−3.809	1.261	0	7	12	37.2	22.5
		exp LS1	−0.155	0.015	−0.282	0.024	−7	2	4	—	31.0
		exp LS2	0.182	0.045	0.364	0.097	−10	7	4	—	33.3
		exp LS3	1.910	0.049	3.686	0.107	−36	7	4	—	43.6
		exp LS4	1.928	0.147	3.735	0.282	−44	5	6	—	43.9
		exp LS5	4.260	0.202	8.195	0.385	−67	7	5	—	58.5
high-TDS water		exp HS0 (pond 1)	5.117	0.842	9.826	1.580	−72	6	10	174.1	186
		exp HS1	5.353	0.195	10.292	0.394	−81	14	4	—	213
		exp HS2	4.938	0.007	9.541	0.044	−100	16	4	—	249
		exp HS3	6.018	0.080	11.592	0.176	−102	12	4	—	292
		exp HS4	4.981	0.044	9.638	0.088	−108	2	4	—	286
		exp HS5	6.367	0.188	12.284	0.376	−118	13	7	—	392
	natural waters
	group	pond
		pond 8	−2.011	0.658	−3.809	1.261	0	7	12	37.2	22.5
		pond 11	−1.685	0.025	−3.205	0.030	7	10	4	24.2	16.4
	I	average	−1.848	0.231	−3.507	0.427	4	5
	II	pond 7	−0.579	0.084	−1.086	0.153	−5	3	4	48.4	32.3
		pond 6	0.671	0.148	1.303	0.270	−17	6	4	63.1	47.7
		pond 9	1.082	0.005	2.087	0.020	−20	6	4	55.8	42.7
		pond 10	0.515	0.044	1.006	0.065	−16	10	4	58.5	38.8
	III	average	0.756	0.293	1.465	0.558	−18	2
		pond 4	2.209	0.039	4.232	0.080	−26	3	4	90.5	65.7
		pond 5	1.716	0.020	3.307	0.013	−30	13	4	74.9	59.4
	IV	average	1.962	0.348	3.769	0.654	−28	3
		pond 2	3.463	0.093	6.655	0.189	−51	10	6	158.8	141
		pond 3	3.655	0.004	7.022	0.004	−53	6	4	130.7	108
	V	average	3.559	0.136	6.838	0.259	−52	1
	VI	pond 1	5.117	0.842	9.826	1.580	−72	6	10	174.1	186
		average salar water	2.703	1.069	5.208	2.022	−48	10			131
		site 12 (groundwater)	−3.328	0.155	−6.315	0.255	7	21	4	5.8	4.18
		rain	−2.840	0.059	−5.418	0.119	20	6	2	—	—