Supplemental Material: Alteration, mass analysis, and magmatic compositions of the Sentinel Bluffs Member, Columbia River flood basalt province

Geosphere, February 2018, v. 14, p. 286-303, doi:10.1130/GES01188.1, Supplemental File 4. Spreadsheet used to calculate MI 100 baselines using an iterative regression method. Sample data in this spreadsheet are for Sentinel Bluffs Member series I-IV samples; these data and the input parameters were used in determining the MI 100 baseline for these samples. Instructions on the use of this spreadsheet are given in Supplemental File 3.