作者: Frank S. Spear
DOI: 10.1007/BF00375184
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摘要: A procedure is described whereby the effect of “extra” components on plotting positions minerals in projected phase diagrams may be accounted for rigorously. The method employs equilibrium constraints mineral assemblage to extrapolate compositions where values approach 0. same also used natural assemblages over isothermal, isobaric composition or polythermal, polybaric diagrams.