ODP Legacy > Operations > Laboratory methods > Thin sections >
Basalt from Hole 856H, Middle Valley, Juan de Fuca Ridge, Leg 169. Field of view 2.5 mm, cross-polarized light. Plagioclase phenocrysts in basaltic glass show hopper-car, boxy, and acicular habits.
Gabbro from Hole 894G, Hess Deep, Leg 147. Field of view 5 mm, cross-polarized light. Minerals are plagioclase (gray tones) and clinopyroxene (brown to blue tones).
Peridotite from Hole 895D, Hess Deep, Leg 147. Field of view 5 mm, cross-polarized light. Fractured but relatively fresh olivine crystals.
Massive colloform pyrite from the TAG hydrothermal mound, Leg 158. Field of view 5 mm, reflected light.
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