R: AFM compositions of 23 aphyric Skye lavas

SkyeAFM {compositions} | R Documentation

## AFM compositions of 23 aphyric Skye lavas

### Description

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.

### Usage

    data(SkyeAFM)

### Details

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.

### Note

Courtesy of J. Aitchison

### Source

Aitchison: CODA microcomputer statistical package, 1986, the file name SKYEAFM.DAT, here included under the GNU Public Library Licence Version 2 or newer.

### References

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.

### See Also

`Skye`

[Package compositions version 2.0-4 Index]