Homogenization Experiments of Crystal-Rich Inclusions in Spodumene from Jiajika Lithium Deposit, China, under Elevated External Pressures in a Hydrothermal Diamond-Anvil Cell

Table 1

Results of homogenization experiments of CIs in spodumene from Jiajika deposit under external pressures in HDAC.

Number	Number of FIA or ICI	(%)	(°C)	(°C)		(°C)	(°C)	(MPa)
1	1	25	295.7	290		430	660	404
2		25	295.7	290		451	650	393
3	2	20	275.8	276	CT	415	622	425
4		20	275.8	292	CT	415	640	446
5	3	5	268.8	278		428	530	334
6		5	268.8	276	CT	—	535	340
7		5	268.8	289	CT	415	542	349
8	4	5	268.7	272	CT	421	533	338
9		5	268.7	283		400	525	328
10	5	40	268.7	273	CT	418	650	480
11		40	268.7	274	CT	408	657	489
12	6	40	268.8	282		419	705	545
13	7	25	278.0	300		421	620	415
14	8	30	278.0	304		430	660	461
15	9	30	275.8	298	CT	415	680	492
16	10	30	271.5	280	CT	430	650	471
17	11	5	276.1	360	CT	424	510	290
18	12	5	270.6	267	CT	—	530	315
19	13	10	276.1	281	CT	424	650	456
20	14	40	261.1	286	CT	408	646	501
21	15	5	295.7	277	CT	460	592	331
22	16	35	269.8	283		460	601	418
23	17	15	224.5	287		442	608	571
24	18	5	272.1	287	CT	480	560	362
25	20	10	264.0	287	CT	480	560	385
26	21	10	266.4	292		470	608	437
27	22	30	294.0	294		390	720	472
28	23	15	294.0	280		—	530	269
29	24	15	295.4	288		—	560	298
30	25	25	231.3	295		—	572	499
31	26	30	250.0	—		420	635	524
32	27	10	250.0	—		430	500	345
33	28	50	275.1	291		415	600	401

Number of CIs; number of fluid inclusion assemblages of CIs or isolated CIs; : volume proportion of solid phases in CIs at room temperature; : disappearance temperature of H₂O vapor bubble in HDAC cell; : homogenization temperature of fluid phase in CIs; : state of the homogenized fluid in CIs; : initial dissolution temperature of daughter minerals in CIs; : total dissolution temperature of daughter minerals in CIs; : pressure in HDAC at the (i.e., external pressure of CIs at ); calculated from densities obtained from using the equation of state of H₂O formulated by Zhang and Duan [27], which is more accurate than that by Haar et al. [28] based on recent calibrations using α-β quartz phase transition [29]; : liquid H₂O; : liquid CO₂; CT: critical phase of H₂O and CO₂; or was not obvious or not observed during heating.