David Waltham

From Sand Grains to Solar Systems

  • Home
  • Lucky Planet
  • Maths For Geologists
  • Free Software
  • Blog
  • About
  • Contact
  • E-mail

Website by Callia Web

Plotting Spreadsheets

Excel spreadsheets provide many basic graphing facilities but lack common geological plots such as triangular diagrams and stereonets. These spreadsheets allow you to do those kinds of plots. Please feel free to use and modify them in any way you wish.

Spreadsheet Description
Polar.xls Plotting of data onto an equal area or equal angle plot.
Triangle.xls Plotting of data onto a ternary diagram.
Decompact.xls Decompaction algorithm for plotting subsidence history from well data on lithology and thickness.