XLFRAC: a program for the interactive testing of magmatic differentiation models
- 1 January 1978
- journal article
- Published by Elsevier BV in Computers & Geosciences
- Vol. 4 (2), 143-159
- https://doi.org/10.1016/0098-3004(78)90083-3
Abstract
XLFRAC is a simple program which solves linear least-squares mass-balance equations, makes “subtraction diagram” calculations and can trace the composition of derivative magmas as phases are added or subtracted from an initial magma. Because the program is designed for interactive use, these calculations can be run in any order selecting the necessary data from a terminal using the results of one calculation to guide the selection of the next problem. Because of its relative simplicity and low cost to run, it has been determined useful for computer-assisted instruction as well as research projects in petrology.Keywords
This publication has 5 references indexed in Scilit:
- Volcanic Evolution of the Southern Slate Belt of Georgia and South Carolina: A Primitive Oceanic Island ArcThe Journal of Geology, 1978
- Late Cenozoic Transitional Alkali Olivine–Tholeiitic Basalt and Andesite from the Margin of the Great Basin, Southwest UtahGSA Bulletin, 1973
- Mineralogy and Petrology of the Raton-Clayton Volcanic Field, Northeastern New MexicoGSA Bulletin, 1972
- A Linear Programming and Least Squares Computer Method for Solving Petrologic Mixing ProblemsGSA Bulletin, 1970
- Estimating Proportions in Petrographic Mixing Equations by Least-Squares ApproximationScience, 1969