This dataset includes results from trace element concentrations from zircon rims (outermost crystal face) and crystal interiors (polished sections) of the last four explosive silicic eruptions from Ilopango caldera (TBJ, TB2, TB3, and TB4) in El Salvador. Zircon crystals were analyzed employing Secondary Ion Mass Spectrometry at Heidelberg University.
Accuracy relative to REE reference working values of zircon 91500 from Wiedenbeck et al. 2004 and Ti from Szymanowski et al., 2018: Ti = 3.12%; Y = 3.04%; Nd = 13.33%; Sm = 8.47% and Hf = 14.25%