Bearden, 2023 Figure 3.1: "Field photos of volcano #1 [of the Maclaren River volcanic field] and photomicrographs. (A-D) Photos of blocky volcano #1 lavas. (E) Photomicrograph of an olivine phenocryst with a swallowtail morphology. (F) Photomicrograph of a groundmass biotite microlite (denoted by the red arrow). Field photos courtesy of Dr. Jeff Benowitz."