Table 2: Limits and constraints used for the retrieval of D fH° and S°
for kaolinite and pyrophyllite

Limits:

239.8 > S°Prl > 239.0, -5593896 > D fPrl > -5706904 (in Joules/mole)

202.25 > S°Kln > 185.0, -4174936.0 > D fKln < -4039304.0 (in Joules/mole)

Constraints:

For each reaction, assemblages on the right hand side of the ">" sign are stable at the P and T conditions specified. Italicized constraints were only used in obtaining the unique solution at S°Kln = 187.44 (with Mc-2' used instead of Mc-2), but were not used to obtain the area of feasible solutions indicated in the text.

Label

T (°C)

P (bars)

Reaction

Ze-1

25

500

Kln + lAb < 2 a Qz + Pg + H2O

Ze-2

90

1000

Kln + lAb < 2 a Qz + Pg + H2O

Ze-3

200

1000

Kln + lAb > 2 a Qz + Pg + H2O

C84-1

400

3000

Prl < 4 a Qz + Cor + H2O

C84-2

435

5000

Prl < 4 a Qz + Cor + H2O

C84-3

450

7000

Prl < 4 a Qz + Cor + H2O

C84-4

485

10625

Prl < 4 a Qz + Cor + H2O

C84-5

475

3000

Prl > 4 a Qz + Cor + H2O

C84-6

510

5000

Prl > 4 a Qz + Cor + H2O

C84-7

562

10000

Prl > 4 a Qz + Cor + H2O

HH73-1

390

3625

Prl < And + 3 a Qz + H2O

HH73-2

410

4875

Prl < And + 3 a Qz + H2O

HH73-3

450

7185

Prl < And + 3 a Qz + H2O

HH73-4

420

3500

Prl > And + 3 a Qz + H2O

HH73-5

440

4685

Prl > And + 3 a Qz + H2O

N72-1

400

9625

4 Lw + 2 a Qz < 6 H2O + 2 Zo + Prl

N72-2

360

7180

4 Lw + 2 a Qz < 6 H2O + 2 Zo + Prl

N72-3

440

6800

4 Lw + 2 a Qz > 6 H2O + 2 Zo + Prl

N72b1

460

6800

12 Lw > Prl + 6 Zo + 2 Ky + 20 H2O

N72b2

375

3870

12 Lw > Prl + 6 Zo + 2 Ky + 20 H2O

N72b3

375

7180

12 Lw < Prl + 6 Zo + 2 Ky + 20 H2O

N72b4

400

9680

12 Lw < Prl + 6 Zo + 2 Ky + 20 H2O

Hem-1

285

1000

Kln + 2 a Qz > Prl + H2O

Mc-1

330

5000

Kln + 2 a Qz > Prl + H2O

Mc-2'

300

5550

Kln + 2 a Qz < Prl + H2O

Th-1

330

1000

Kln + 2 a Qz > Prl + H2O

Th-2

350

2000

Kln + 2 a Qz > Prl + H2O

Th-4

390

4000

Kln + 2 a Qz > Prl + H2O