Volcanic glass has been discovered at more than 500 archaeological sites in western Canada. Geologically-speaking, it shouldn’t be there. Now, researchers may have answered how these artifacts ...

Volcanic glass has been discovered at more than 500 archaeological sites in western Canada. Geologically speaking, it shouldn’t be there. Now, researchers may have answered how these artifacts ...

The lava is made of obsidian, or volcanic glass. Researchers visiting Chile's Puyehue-Cordón Caulle volcano in January 2013 found the obsidian flow was moving, ...

Archaeologists use obsidian to determine how far people traveled on ancient trade routes across Wyoming. Each obsidian flake ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Mark Stelten, research geologist ...

The red hot ash cloud from the explosion cooled quickly in the atmosphere, forming glass similar in composition to obsidian. Skip to main content Skip to main content. Register for more free ...

Fluorescent in situ hybridization (FISH) and 16S rDNA analysis were used to characterize the endolithic colonization of silica-rich rhyolitic glass (obsidian) in a barren terrestrial volcanic ...

Geokhimiya Vulkanicheskikh Stekol i Istochniki Arkheologicheskogo Obsidian na Kamchatke (Dalny Vostok Rossii) [Geochemistry of Volcanic Glasses and Sources of Archaeological Obsidian on Kamchatka ...