Glossary of landform and geologic terms. 2013.
welded tuff — Petrol. ignimbrite. * * * rock composed of compacted volcanic ejecta (see tuff). * * * … Universalium
welded tuff — noun : a tuff deposit sufficiently thick and hot at the time of emplacement that the fragments soften and coalesce to form a rock which simulates rhyolite or obsidian * * * Petrol. ignimbrite … Useful english dictionary
welded tuff — GLOSSARY OF VOLCANIC TERMS A hard pyroclastic rock compacted by internal heat and pressure from overlying pyroclastic deposits … Glossary of volcanic terms
Tuff — (from the Italian tufo ) is a type of rock consisting of consolidated volcanic ash ejected from vents during a volcanic eruption. Tuff should not be confused with tufa , another type of rock. Volcanic ashThe products of a volcanic eruption are… … Wikipedia
tuff — tuff1 /tuf/, adj. Slang. tough (def. 13). tuff2 tuffaceous /tu fay sheuhs/, adj. /tuf/, n. Geol. a fragmental rock consisting of the smaller kinds of volcanic detritus, as ash or cinder, usually more or less stratified. Also called volcanic tuff … Universalium
Bishop Tuff — The Bishop Tuff is located in the Owens Valley, southeast of Mammoth Lakes, California. It is a welded tuff that formed 760,000 years ago as a rhyolitic pyroclastic flow during the eruption that created the Long Valley Caldera.The Bishop Tuff… … Wikipedia
Lava Creek Tuff — is a tuff formation created when the Yellowstone Caldera erupted about 640,000 years ago.ref|ageThe Lava Creek Tuff distributed in a radial pattern around the caldera and is formed of convert|1000|km3|cumi|abbr=off|lk=off of ash in pyroclastic… … Wikipedia
Ignimbrite — is a volcanic pyroclastic rock, often of dacitic or rhyolitic composition. Ignimbrite is the deposit of a pumice rich pyroclastic density current, or pyroclastic flow , a hot suspension of particles and gases that flows rapidly from a volcano,… … Wikipedia
Glennies Creek Dam — Infobox lake lake name = Lake St Clair image lake = caption lake = image bathymetry = caption bathymetry = location = New South Wales coords = coord|32|21|S|151|17|E|type:waterbody region:AU|display=inline,title type = reservoir inflow = Glennies … Wikipedia
Yucca Mountain nuclear waste repository — Yucca Mountain The proposed design … Wikipedia
