Table 5 Chemical compositions of phases in run products
From: Melting phase relations in the MgSiO3–CaSiO3 system at 24 GPa
Run no. | SMa | Phaseb | MgO | CaO | SiO2 | Total (wt.%) | Mg | Ca | Si | ∑Cationc | Mg/(Mg + Ca) |
|---|---|---|---|---|---|---|---|---|---|---|---|
OS3097 | Mg90 | S-Bdg (48) | 37.56(101) | 3.07(121) | 62.12(76) | 102.74(112) | 0.915(19) | 0.054(21) | 1.016(4) | 1.984(4) | 0.945(22) |
Mg75 | S-Bdg (32) | 36.45(93) | 3.35(86) | 61.46(72) | 101.25(130) | 0.901(16) | 0.060(15) | 1.020(4) | 1.980(4) | 0.938(16) | |
OS3099 | Mg90 | Melt (9) | 33.57(42) | 8.49(28) | 57.33(86) | 99.39(86) | 0.864(12) | 0.157(6) | 0.990(6) | 2.010(6) | 0.846(5) |
L-Bdg (44) | 38.25(106) | 2.12(79) | 61.04(100) | 101.42(171) | 0.943(15) | 0.038(14) | 1.010(3) | 1.990(3) | 0.962(14) | ||
S-Bdg (34) | 38.26(100) | 1.99(60) | 60.84(106) | 101.09(181) | 0.946(13) | 0.035(11) | 1.009(4) | 1.991(4) | 0.964(11) | ||
S-CaPv (28) | 4.89(63) | 40.58(67) | 52.85(67) | 98.32(85) | 0.140(18) | 0.834(17) | 1.013(5) | 1.987(5) | 0.143(17) | ||
Mg75 | L-CaPv (29) | 5.34(75) | 40.30(83) | 52.72(84) | 98.36(97) | 0.153(22) | 0.827(17) | 1.010(8) | 1.990(8) | 0.155(21) | |
S-CaPv (33) | 5.68(57) | 39.90(78) | 52.97(64) | 98.55(87) | 0.161(16) | 0.816(16) | 1.011(7) | 1.989(7) | 0.165(16) | ||
S-Bdg (44) | 39.05(66) | 1.80(31) | 61.89(74) | 102.74(121) | 0.949(8) | 0.031(6) | 1.010(3) | 1.990(3) | 0.968(6) | ||
OS3095 | Mg90 | Melt (13) | 35.49(38) | 5.29(13) | 58.47(44) | 99.24(84) | 0.904(4) | 0.097(2) | 0.999(2) | 2.000(2) | 0.903(2) |
Mg75 | Melt (15) | 31.47(46) | 10.35(16) | 57.63(57) | 99.46(112) | 0.812(4) | 0.192(2) | 0.998(2) | 2.002(2) | 0.809(2) | |
L-CaPv (31) | 4.39(36) | 42.59(58) | 53.01(65) | 100.00(81) | 0.124(10) | 0.865(13) | 1.005(4) | 1.995(4) | 0.125(10) | ||
OS3150 | Mg50 | Melt (21) | 28.27(72) | 14.57(90) | 56.85(40) | 99.70(67) | 0.737(16) | 0.273(18) | 0.995(2) | 2.005(2) | 0.730(17) |
L-CaPv (37) | 3.42(43) | 43.32(59) | 53.52(31) | 100.25(48) | 0.096(12) | 0.878(13) | 1.013(3) | 1.987(3) | 0.099(12) |