Estimating proportions in petrographic mixing equations by least-squares approximation
Bryan WB, Finger LW, Chayes F. 1969. Estimating proportions in petrographic mixing equations by least-squares approximation. Science. 163(3870):926-927
Petrogenetic hypotheses involving fractional crystallization, assimilation, or mixing of magmas may be expressed and tested as problems in least squares approximation. The calculation uses all of the data and yields a unique solution for each model, thus avoiding the ambiguity inherent in graphical or trial-and-error procedures. The compositional change in the 1960 lavas of Kilauea Volcano, Hawaii, is used to illustrate the method of calculation.
- Type
- Journal Article
- Authors
- Bryan, W.; Finger, L.; Chayes, F.
- Units
- HAVO
- Keywords
- 1960, East Rift Zone, Kilauea Volcano, Method, Petrology