Hydrogen partitioning between stishovite and hydrous phase δ: implications for water cycle and distribution in the lower mantle

Progress in Earth and Planetary Science

Table 2 Water and alumina contents of recovered stishovites

Run #	Grain #	Water content (ppm)	Al₂O₃ content* (wt%)	H content (mol%)	Thickness (μm)
H5276	1	972	0.59(4)		70
	2	960	0.62(5)		90
	3	1036	0.63(5)		105
	4	940	0.63(5)		80
	5	1059	0.62(6)		70
	6	944	0.63(5)		80
	7	1046	0.65(5)		70
	8	1011	0.65(3)		140
	9	1004	0.66(4)		75
	10	964	0.68(4)		105
	Average	994(44)^§	0.64(3)	0.66(3)
H5324	1	426	0.64(3)		140
	2	483	0.64(3)		120
	3	489	0.62(3)		120
	4	463	0.64(4)		100
	5	421	0.60(4)		100
	Average	456(32)^§	0.63(4)	0.30(2)
H5365	1	540	0.66(1)		103
	2	475	0.64(2)		150
	3	481	0.66(2)		150
	4	458	0.63(2)		150
	5	545	0.62(3)		120
	6	448	0.64(2)		150
	Average	491(41)^§	0.64(2)	0.33(2)
I1130	1	504	0.65(6)		176
	2	511	0.59(4)		176
	3	538	0.63(2)		154
	4	558	0.62(5)		154
	5	558	0.64(5)		154
	Average	534(25)^§	0.62(2)	0.35(2)

^§The errors are expressed as one standard deviation of the mean
*Detailed chemical compositions of recovered stishovite single crystals were shown in Additional file 1: Table S1