Igneous Volcanic Slide Show
Click on any picture to begin the slide show.
Mafic pillow lava, B.C.. Ash flow sheet, Bishop Tuff, CA. Specimens showing a range of welding, Long Valley Caldera, Bishop Tuff, CA. Pyroclastic surge layer within Bishop Tuff, CA. Intracanyon flow filling paleovalley in layered pyroclastic rocks, OR.
John Day ash beds, OR. Mazama ash from the 7000 B.C. eruption of Crater Lake, exposed near Keremeos, B.C.. Mt. St. Helens post 1981 eruption. Ash flows, near Bend, OR. Basaltic aa flow, OR.
Chisel marks on basalt column, B.C.. Mantle and crustal xenoliths in a young basalt flow, Summit Lake, B.C.. Pillow lava, B.C.. Intracanyon flow, OR. The Barrier, B.C..
Obsidian flow at Newberry Caldera, OR. Pyroclastic flow and fall deposit, OR. Pillow lava, CA. Columnar flow, B.C.. Pillow lava, San Juan Island, WA.
Pillow lava, WA. Pahoehoe from Hawaii. Altered volcanic rocks in Yellowstone Canyon, WY. Mammoth Hot Springs, Yellowstone National Park, WY. A peralkaline shield volcano, Rainbow Range, B.C..
Chilcotin Group basalts at Painted Chasm, B.C.. Tiered basalt flow, B.C. Mt. St. Helens, September 15, 1981. Inside crater at Mt. St. Helens, note dome to the right. Dacite dome in crater, Mt. St. Helens, WA.
Basalt flows along Stikine River, B.C.. Young lava flow causing dammed up lake, Nass Valley, B.C.. Young lava flow, Nass Valley, B.C..
First 31 slides by Dr. ML.Bevier. Last 2 by Carol Evenchick.
Copyright © 2002 Dept. Earth and Ocean Sciences,
The University of British Columbia.