Extended Data Fig. 3: 40Ar/39Ar age spectra for samples B1908, B703, B1641 and B1036.
From: Sampling the volatile-rich transition zone beneath Bermuda
40Ar/39Ar step-heating data for silica-undersaturated lavas from Bermuda. The phlogopite phenocrysts age spectrum records a magmatic age of approximately 30.9 Myr.
