AFM compositions of 23 aphyric Skye lavas. AFM diagrams formed from the relative proportions of A: alkali or Na2O + K2O, F: Fe2O3, and M: MgO, are common in geochemistry.
data(SkyeAFM)AFM compositions of 23 aphyric Skye lavas. AFM diagrams formed from the relative proportions of tive proportions of A: alkali or Na2O + K2O, F: Fe2O3, and M: MgO. Adapted from Thompson, Esson and Duncan: Major element chemical variations in the Eocene lavas of the Isle of Skye, Scotland. All row percentage sums to 100.
Aitchison, J. (1986) The Statistical Analysis of Compositional Data, (Data 6) pp12.
Thompson, Esson and Duncan: Major element chemical variations in the Eocene lavas of the Isle of Skye, Scotland. 1972, J.Petrology, 13, 219-235.