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Problem title: Task 2 - Al2SiO5 Plot                                                   

Thermodynamic data base from: Holland & Powell '02 + Connolly & Kerric

Independently constrained potentials:

   T(K)     P(bar)  

Components with unconstrained potentials:

   AL2O3   SIO2 

Phases and (projected) mol fraction SIO2 :

  and      0.500  ky       0.500  sill     0.500  q        1.000
  trd      1.000  crst     1.000  coe      1.000  stv      1.000
  cor      0.000  silL     0.500  qL       1.000  sio2     1.000
  al2o3    0.000  qGL      1.000  coGL     0.000  sil8L    0.500
  q8L      1.000

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the stable assemblages at:

                         T(K)     =  473.000    
                         P(bar)   =  1000.00    

are (variance flag in parentheses):

cor     -ky      (1)   ky      -q       (1)


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The T(K)    -P(bar)   loci of (pseudo-) univariant fields follow:

NOTE: For each field the values of the dependent  extensities are output
for the first equilibrium condition, in general these properties vary with
the independent potentials.


Reaction equations are written such that the high T(K)    
assemblage is on the right of the = sign


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 (     1-1)  1.00 ky 9.32 S(j/k) =  1.00 and 0.742 -V(j/b)

  550.651      1000.00       562.604      1150.00       574.572      1300.00    
  586.554      1450.00       598.552      1600.00       610.566      1750.00    
  622.596      1900.00       634.642      2050.00       646.706      2200.00    
  658.786      2350.00       670.883      2500.00       682.998      2650.00    
  695.131      2800.00       707.282      2950.00       719.450      3100.00    
  731.637      3250.00       743.842      3400.00       756.066      3550.00    
  768.308      3700.00       774.436      3775.00       777.501      3812.50    
  779.035      3831.25       779.801      3840.62       780.091      3844.17    

the equilibrium extends to invariant point (     1)


                       ------
equilibria about invariant point (     1):

   cor ky and sill 

are listed below:

 (     2-1)  1.00 ky 11.9 S(j/k) =  1.00 sill 0.560 -V(j/b)

  780.091      3844.17       787.127      3994.17       794.158      4144.17    
  801.185      4294.17       808.208      4444.17       815.225      4594.17    
  822.238      4744.17       829.246      4894.17       836.249      5044.17    
  843.246      5194.17       850.239      5344.17       857.226      5494.17    
  864.207      5644.17       871.183      5794.17       878.154      5944.17    
  885.118      6094.17       892.077      6244.17       899.029      6394.17    
  905.975      6544.17       912.916      6694.17       919.849      6844.17    
  926.777      6994.17       927.046      7000.00    

 (     3-1)  1.00 and 0.183 -V(j/b) 2.85 S(j/k) =  1.00 sill

  780.091      3844.17       789.782      3694.17       799.550      3544.17    
  809.394      3394.17       819.315      3244.17       829.313      3094.17    
  839.388      2944.17       849.542      2794.17       859.773      2644.17    
  870.083      2494.17       880.471      2344.17       890.937      2194.17    
  901.481      2044.17       912.104      1894.17       922.806      1744.17    
  933.586      1594.17       944.444      1444.17       955.380      1294.17    
  966.395      1144.17       977.054      1000.00    

                       ------
Network traced, resuming boundary search.


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(pseudo-) invariant points are summarized below:

 (     1-1) cor ky and sill 
               occurs at:
                         T(K)    = 780.091    
                         P(bar)  = 3844.17    

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(pseudo-) invariant points are summarized below:

 (     1-1) cor      ky       and      sill    


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(pseudo-) univariant equilibria are summarized below:

 (     1-1)  1.00 ky 9.32 S(j/k) =  1.00 and 0.742 -V(j/b)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
 (     2-1)  1.00 ky 11.9 S(j/k) =  1.00 sill 0.560 -V(j/b)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
 (     3-1)  1.00 and 0.183 -V(j/b) 2.85 S(j/k) =  1.00 sill                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               


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