Thin section descriptions for Heard Island rocks

Thin sections were prepared at the University of Tasmania. Rocks were washed, cut and dried. 30 micron thick polished thin sections were prepared. The thin sections were described with a microscope at the University of Tasmania. Mineral types and abundances were characterised for each thin section. The composition of the rocks are listed in the description. The composition was determined through XRF analysis (see XRF data sheet for these samples).