According to Sakai-Ohmoto's theory regarding the evolution of sulfur isotope in hydrothermal system, by using new data on chemical reaction equilibrium constants,equilibrium isotopic fractionation factors as well ...According to Sakai-Ohmoto's theory regarding the evolution of sulfur isotope in hydrothermal system, by using new data on chemical reaction equilibrium constants,equilibrium isotopic fractionation factors as well as on individual ion activity coeffidents of sulfur species the following diagrams of lgfo2-pH are constructed: a) Mole fraction of aqueous sulfur species (Xt), b) Stable field for some minerals in Fe-S-O system, c) diagram depicting the rate of oxidation-reduction state of aqueous sulfur species(R'), and d) Isotopic composition of sulfur compounds (δSt^34).展开更多
On the basis of the 25 9-point closed-net-diagrams given by Guo Qiti, the 8-point straight-line-net-diagrams of binary 6-phase (n+4)multisystems have been derived. Any 8-point straight-line-net-diagram constitutes par...On the basis of the 25 9-point closed-net-diagrams given by Guo Qiti, the 8-point straight-line-net-diagrams of binary 6-phase (n+4)multisystems have been derived. Any 8-point straight-line-net-diagram constitutes part of its corresponding 9-point closed-net-diagram. It means that the removal of one appropriate invariant point from a 9-point closed-netdiagram would result in an 8-point straight-line-net-diagram. If there exists neither concave triangle(s) nor concave quadrilateral(s)in the residual part of a 9-point closed-net-展开更多
The 9-point closed-net-diagrams of binary 6-phase multisystems contain 2 basic types ofnon-straight-line portions. Only the removal of an invariant point which is shared by all thenon-straight-line portions in a 9-poi...The 9-point closed-net-diagrams of binary 6-phase multisystems contain 2 basic types ofnon-straight-line portions. Only the removal of an invariant point which is shared by all thenon-straight-line portions in a 9-point closed-net-diagram can generate an 8-point straight-line-net-diagram. All together 67 distinct 8-point straight-line-net-diagrams have been derived forbinary 6-phase multisystems. They correspondingly belong to 31 distinct 8-point straight-line-nets (namely, 31 distinct 8-point sets), showing that the previous conclusion that there existsonly one 8-point straight-line-net-diagram for binary 6-phase multisystems is incorrect.展开更多
This paper first discusses the algorithm for balancing reactions of the combination of n + 2 phases around an invariant point on a P-Tdiagram, and then emphatically develops a new algorithm for the arrangement of univ...This paper first discusses the algorithm for balancing reactions of the combination of n + 2 phases around an invariant point on a P-Tdiagram, and then emphatically develops a new algorithm for the arrangement of univariant reaction lines, using a signum matrix V·F or S·F, where V and S are diagonal matrixes of signum of △V and △S in n+2 univariant reactions respectively, and F is a signum matrix of stoichiometric coefficients of phases in reactions. Using this new algorithm greatly simplifies relative computer programs, brings out the automatic construction of equilibrium P-T curves of combination of n +2 phases, and further makes it possible to construct a whole petrogenetic grid automatically展开更多
Based on the theory of physically real nets, the 8- point straight-line nets of bi-nary 6- phase (n + 4) multisystems (31 in toto) have been derived directly from the l-point straight-line nets. This result is in comp...Based on the theory of physically real nets, the 8- point straight-line nets of bi-nary 6- phase (n + 4) multisystems (31 in toto) have been derived directly from the l-point straight-line nets. This result is in complete agreement with that derived fromthe theory of closed nets, indicating the incorrectness of the previous conclusion thatthere is only one 8-point straight-line net which corresponds to only one 8- pointstraight-line-net-diagram for binary 6- phase multisystems.展开更多
文摘According to Sakai-Ohmoto's theory regarding the evolution of sulfur isotope in hydrothermal system, by using new data on chemical reaction equilibrium constants,equilibrium isotopic fractionation factors as well as on individual ion activity coeffidents of sulfur species the following diagrams of lgfo2-pH are constructed: a) Mole fraction of aqueous sulfur species (Xt), b) Stable field for some minerals in Fe-S-O system, c) diagram depicting the rate of oxidation-reduction state of aqueous sulfur species(R'), and d) Isotopic composition of sulfur compounds (δSt^34).
文摘On the basis of the 25 9-point closed-net-diagrams given by Guo Qiti, the 8-point straight-line-net-diagrams of binary 6-phase (n+4)multisystems have been derived. Any 8-point straight-line-net-diagram constitutes part of its corresponding 9-point closed-net-diagram. It means that the removal of one appropriate invariant point from a 9-point closed-netdiagram would result in an 8-point straight-line-net-diagram. If there exists neither concave triangle(s) nor concave quadrilateral(s)in the residual part of a 9-point closed-net-
文摘The 9-point closed-net-diagrams of binary 6-phase multisystems contain 2 basic types ofnon-straight-line portions. Only the removal of an invariant point which is shared by all thenon-straight-line portions in a 9-point closed-net-diagram can generate an 8-point straight-line-net-diagram. All together 67 distinct 8-point straight-line-net-diagrams have been derived forbinary 6-phase multisystems. They correspondingly belong to 31 distinct 8-point straight-line-nets (namely, 31 distinct 8-point sets), showing that the previous conclusion that there existsonly one 8-point straight-line-net-diagram for binary 6-phase multisystems is incorrect.
文摘This paper first discusses the algorithm for balancing reactions of the combination of n + 2 phases around an invariant point on a P-Tdiagram, and then emphatically develops a new algorithm for the arrangement of univariant reaction lines, using a signum matrix V·F or S·F, where V and S are diagonal matrixes of signum of △V and △S in n+2 univariant reactions respectively, and F is a signum matrix of stoichiometric coefficients of phases in reactions. Using this new algorithm greatly simplifies relative computer programs, brings out the automatic construction of equilibrium P-T curves of combination of n +2 phases, and further makes it possible to construct a whole petrogenetic grid automatically
文摘Based on the theory of physically real nets, the 8- point straight-line nets of bi-nary 6- phase (n + 4) multisystems (31 in toto) have been derived directly from the l-point straight-line nets. This result is in complete agreement with that derived fromthe theory of closed nets, indicating the incorrectness of the previous conclusion thatthere is only one 8-point straight-line net which corresponds to only one 8- pointstraight-line-net-diagram for binary 6- phase multisystems.
