This dataset contains the chemical composition of volcanic rocks sampled from the lava lake at Kilauea Iki (Hawaii). The data represents major oxide concentrations in fractional form.
kilauea_ikiA data frame with 17 observations and 11 variables:
Silicon dioxide (fraction)
Titanium dioxide (fraction)
Aluminium oxide (fraction)
Ferric oxide (fraction)
Ferrous oxide (fraction)
Manganese oxide (fraction)
Magnesium oxide (fraction)
Calcium oxide (fraction)
Sodium oxide (fraction)
Potassium oxide (fraction)
Phosphorus pentoxide (fraction)
Richter, D.H., & Moore, J.G. (1966). Petrology of Kilauea Iki lava lake, Hawaii. *Geological Survey Professional Paper* 537-B.
The variability in the oxide concentrations is attributed to magnesic olivine fractionation, starting from a single magmatic mass as suggested by Richter & Moore (1966).