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PETRO.CALC.PLOT, Microsoft Excel macros to aid petrologic interpretation

Authors
Journal
Computers & Geosciences
0098-3004
Publisher
Elsevier
Publication Date
Volume
20
Issue
6
Identifiers
DOI: 10.1016/0098-3004(94)90040-x
Keywords
  • Macros
  • Recalculation
  • Petrology
  • X-Ygraphs
  • Ternary Diagrams
Disciplines
  • Earth Science

Abstract

Abstract PETRO.CALC.PLOT is a package of macros which normalizes whole-rock oxide data to 100%, calculates the cation percentages and molecular proportions used for normative mineral calculations, computes the apices for ternary diagrams, determines sums and ratios of specific elements of petrologic interest, and plots 33 X-Y graphs and five ternary diagrams. PETRO.CALC.PLOT also may be used to create other diagrams as desired by the user. The macros run in Microsoft Excel 3.0 and 4.0 for Macintosh computers and in Microsoft Excel 3.0 and 4.0 for Windows. Macros provided in PETRO.CALC.PLOT minimize repetition and time required to recalculate and plot whole-rock oxide data for petrologic analysis.

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