Data for: HYDROGEN ISOTOPE INVESTIGATION OF AMPHIBOLE AND BIOTITE PHENOCRYSTS IN SILICIC MAGMAS ERUPTED AT LASSEN VOLCANIC CENTER, CALIFORNIA

This raw data includes the electron microprobe analyses, and other chemical and hydrogen isotopic content for phenocrysts for the samples used in this paper. In the hydrogen isotope file, the raw data for a similar study of amphiboles in Mount Saint Helens (Washington State, USA) are also included because the isotopic standards are included in those runs.