Photos of volcanic rocks displaying features found only in volcanic rocks. Click on any photo for a larger image. Some of the larger images may be on other web sites and will open in a new window.

volcanic folds in gneiss

volcanic-hs_001. Texured surfaces of aa (left) and pahoehoe (right) lava flows from Kilauea Volcano, Hawaii, USA. The field of view is about 3 meters across at the front of the photo.



Folded Biotite Zone Schist

volcanic-hs_002. Layered, air-fall tephra sandwiched by two basalt lava flows, Puu Kukui Volcano, Maui, Hawaii, USA.



Stretched Pebble Outcrop

volcanic-hs_003. Colorful, wind-blown reticulite from Kilauea Volcano, Hawaii, USA. The field of view is about 8 cm across.



Folded Coticule Gneiss

volcanic-hs_004. Rusty-colored, dacite volcanic ejecta showing flow features from eruption as a fluid, Mauna Kea Volcano, Hawaii, USA. The large bomb is about 15 cm wide.