CaO-MgO-Al2O3-SiO2
The hornblende end-member of HP90 has been removed from the data set and replaced with tschermakite. Using the mixing model described earlier, the experimental data on alumina content of amphiboles of Jenkins (1994) on both silica-saturated and -undersaturated assemblages (tr + di + an + q, tr + fo + sp) as well as the much higher pressure data of Hoschek (1995) on the assemblage (tr + q + ky + zo) are simultaneously satisfied (see Figure 5). Vesuvianite data are derived from the experiments of Hochella et al. (1980).
178) ts + 2di + 2q = tr + 2an (Jenkins, 1994)
ln_K x(CO2) P(kbar) T(C) H(low) H(high) miss calc 2sd summary
5.76 - 2.0 607 -23.42 -6.41 4.99 0.62 1 (-9.49 <-> -6.76)
5.47 - 2.0 698 -22.01 -6.06 4.88 0.56 cH = -9.28 (sd 2.27) 2
4.85 - 2.0 797 -16.57 -3.28 4.77 0.51 within bracket
3.93 - 4.5 674 -12.54 -3.54 4.09 0.58 uH = 0.45, d/s = 3.8, h = 0.23
3.81 - 4.5 776 -11.58 -2.58 4.06 0.52
2.93 - 7.0 650 -9.84 -3.91 3.24 0.59
3.10 - 7.0 750 -14.11 -0.72 3.32 0.53
179) ts + 2fo = tr + 2sp (Jenkins, 1994)
ln_K x(CO2) P(kbar) T(C) H(low) H(high) miss calc 2sd summary
1.56 - 5.9 789 -29.54 -25.39 1.40 0.50 1 (-26.41 <-> -25.49)
1.41 - 6.1 800 -28.31 -24.35 1.38 0.49 cH = -26.07 (sd 2.19) 2
1.25 - 8.0 827 -26.50 -22.67 1.41 0.48 within bracket
uH = 0.27, d/s = 2.0, h = 0.67
180) 5ts + 7q = 3tr + 7ky + 2zo + H2O (Hoschek, 1995)
ln_K x(CO2) P(kbar) T(C) H(low) H(high) miss calc 2sd summary
8.60 0 10.0 700 -68.46 -29.17 7.63 2.71 1 (-67.49 <-> -39.95)
13.96 0 15.0 720 -75.41 -38.98 12.00 2.66 cH = -41.00 (sd 10.98) 2
17.05 0 20.0 740 -80.98 -16.96 16.10 2.61 within bracket
uH = 2.41, d/s = 6.1, h = 0.13
181) clin + 2dol = 3fo + 2cc + sp + 4H2O + 2CO2 (Chernosky & Berman, 1986)
ln_K x(CO2) P(kbar) T(C) H(low) H(high) miss calc 2sd summary
-0.04 0.43 1.0 565 585 585.76 597.14 579 4 1 (586.68 <-> 596.22)
cH = 593.77 (sd 0.95) 2
within bracket
uH = 2.92, d/s = 2.0, h = 0.01
182) 3clin + 2cc = 2di + 5fo + 3sp + 2CO2 + 12H2O (Chernosky & Berman, 1986)
ln_K x(CO2) P(kbar) T(C) H(low) H(high) miss calc 2sd summary
0.09 0.20 1.0 588 608 1326.59 1350.63 608 2 1 (1328.55 <-> 1348.67)
cH = 1350.63 (sd 1.56) 2
too high but OK
uH = 6.12, d/s = 2.0, h = 0.00
183) 25pump = 29cz + 14gr + 5clin + 6q + 53H2O (Schiffman & Liou, 1980)
ln_K x(CO2) P(kbar) T(C) H(low) H(high) miss calc 2sd summary
-0.26 0 5.0 360 380 3809.74 3859.71 -15 345 6 4 (3746.78 <-> 3790.19)
-0.26 0 6.0 359 365 3760.85 3776.12 362 6 cH = 3768.50 (sd 11.24)
-0.26 0 8.0 377 395 3720.19 3759.27 5 400 8 within bracket
uH = 13.04, d/s = -1.9, h = 1.00
184) 2vsv + 6q = 11gr + 4di + wo + 9H2O (Hochella et al., 1980)
ln_K x(CO2) P(kbar) T(C) H(low) H(high) miss calc 2sd summary
0 0 1.0 375 390 462.97 464.92 377 4 2 (462.10 <-> 464.51)
0 0 2.0 400 415 460.79 463.64 413 6 cH = 463.31 (sd 0.82)
within bracket
uH = 0.87, d/s = 0.4, h = 1.00
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