1. T-X CO2 diagrams 0.6 Cc + 0.12 Do + 0.2 Qtz + 0.05 Fluid (CO 2 :H 2 O=1:4)

2. Step 1: make T-X CO2 diagram Bulk composition: molesMgCaSiCH Calcite0.60-0.60-0.60- Dolomite0.150.150.15-0.30- Quartz0.20--0.20-- 0 MG(0.15)CA(0.75)SI(0.2)C(0.9) O(?) * T-X CO2 diagrams

3. Pseudobinary T-X CO2 Phasediagram Temperature [°C] 400 800 600 MG(0.15) CA(0.75) SI(0.2) MG(0.15) CA(0.75) SI(0.2) + 10000 H 2 O+ 10000 CO 2 T-X CO2 diagrams

4. DatabaseJUN92.bs X-axisBIN 0 1 Y-axisTC 400 800 calculation type. labeling of reactions1 400 2000 0 MG(0.15)CA(0.75)SI(0.2) H(1)C(1) O(?) * 0 MG(0.15)CA(0.75)SI(0.2) H(20000) O(?) * 0 MG(0.15)CA(0.75)SI(0.2) C(10000) O(?) * THERIN: domino T-X CO2 diagrams guzzlerexplot

5. Atg=antigorite aQz=quartz Cc=calcite Di=diopside Do=dolomite Fo=forsterite Mo=monticellite Mw=merwinite Pe=periclase Tc=talc Wo=wollastonite T-X CO2 diagrams Store e.g. as plotTX.ps

6. Step 2: path 400-800 °C, 2 kBar molesMgCaSiCH Calcite0.60-0.60-0.60- Dolomite0.150.150.15-0.30- Quartz0.20--0.20- Fluid0.05---0.010.08 Fluid: CO 2 : H 2 O = 1 : 4 T-X CO2 diagrams 0 MG(0.15)CA(0.75)SI(0.2)C(0.9) C(0.01) H(0.08) O(?) * THERIN

7. T-X CO2 diagrams 400 2000 0 MG(0.15)CA(0.75)SI(0.2)C(0.9) C(0.01) H(0.08) O(?) * THERIN TP 400 2000 TP 800 2000 100 inin theriak DatabaseJUN92.bs Type of calculationinin

8. T-X CO2 diagrams plotxy Input fileloop_table X-axis75+76 Y-axis3 X-min X-max0 1 Y-min Y-max guzzler explot File namexyplot Size of labels option / 0 File nameclean 3: Temperature 75: x_CO2_[CO2] 76: x_CO2_[H2O]

9. T-X CO2 diagrams Store e.g. as plotTX005.ps

10. T-X CO2 diagrams plotxy Input fileloop_table X-axis45,46,47,48,54,55,58,56+57 Y-axis3 X-min X-max0 0.675 7 Y-min Y-max guzzler explot File namexyplot Size of labels option File nameclean Width = 7 cm 3: Temperature 45: n_Cc 46: n_Di 47: n_Do 48: n_Fo 54: n_Tc 55: n_Tr 56: n_[CO2] 57: n_[H2O] 58: n_aQz

11. T-X CO2 diagrams Store e.g. as plotTXmin.ps

12. T-X CO2 diagrams

15. ***** SuLUTION DATA ***** H2O-CO2 (IDEAL) STEAM CARBON-DIOXIDE ***** SOLUTION DATA ***** H2O-CO2 (EXT) REF Kerrick & Jacobs(1981) STEAM CARBON-DIOXIDE in JUN92.bs ideal solution non-ideal solution T-X CO2 diagrams

16. 04min 51s00min 04s H 2 O-CO 2 Kerrick & Jacobs (1981) ideal H 2 O-CO 2 T-X CO2 diagrams

17. DatabaseJUN92.bs X-axisA(CO2) 0 1 Y-axisTC 400 800 calculation type. labeling of reactions1 domino guzzlerexplot T-X CO2 diagrams

18. 00min 02s 00min 04s 10000 H 2 O - 10000 CO 2 activity T-X CO2 diagrams

21. Only 10 moles of fluid