volcanic vent

USGS PHOTO GLOSSARY OF VOLCANIC TERMS
See: vent

Glossary of volcanic terms. - University of Wisconsin Oshkosh. . 2001.

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  • vent — ALASKA VOLCANO OBSERVATORY GLOSSARY An opening in the Earth s surface through which magma erupts or volcanic gases are emitted. GLOSSARY OF VOLCANIC TERMS A surface opening through which volcanogenic materials are erupted (Davidson and DeSilva,… …   Glossary of volcanic terms

  • volcanic complex — ALASKA VOLCANO OBSERVATORY GLOSSARY A persistent volcanic vent area that has built a complex combination of volcanic landforms …   Glossary of volcanic terms

  • Volcanic ash — consists of small tephra, which are bits of pulverized rock and glass created by volcanic eruptions,United States Geological Survey. [http://volcanoes.usgs.gov/Hazards/What/Tephra/tephra.html Tephra: Volcanic Rock and Glass Fragments.] Retrieved… …   Wikipedia

  • volcanic dome — USGS PHOTO GLOSSARY OF VOLCANIC TERMS Volcanic domes are rounded, steep sided mounds built by very viscous magma, usually either dacite or rhyolite. Such magmas are typically too viscous (resistant to flow) to move far from the vent before… …   Glossary of volcanic terms

  • Volcanic blocks — are fragments of rock which measure more than 64mm in size and are erupted in a solid condition. Blocks are formed from material from previous eruptions or from country rock and are therefore mostly accessory or accidental in origin. Blocks also… …   Wikipedia

  • Vent — Vent, n. [OE. fent, fente, a slit, F. fente a slit, cleft, fissure, from fendre to split, L. findere; but probably confused with F. vent wind, L. ventus. See {Fissure}, and cf. Vent to snuff.] 1. A small aperture; a hole or passage for air or any …   The Collaborative International Dictionary of English

  • Vent feather — Vent Vent, n. [OE. fent, fente, a slit, F. fente a slit, cleft, fissure, from fendre to split, L. findere; but probably confused with F. vent wind, L. ventus. See {Fissure}, and cf. Vent to snuff.] 1. A small aperture; a hole or passage for air… …   The Collaborative International Dictionary of English

  • Vent field — Vent Vent, n. [OE. fent, fente, a slit, F. fente a slit, cleft, fissure, from fendre to split, L. findere; but probably confused with F. vent wind, L. ventus. See {Fissure}, and cf. Vent to snuff.] 1. A small aperture; a hole or passage for air… …   The Collaborative International Dictionary of English

  • Vent piece — Vent Vent, n. [OE. fent, fente, a slit, F. fente a slit, cleft, fissure, from fendre to split, L. findere; but probably confused with F. vent wind, L. ventus. See {Fissure}, and cf. Vent to snuff.] 1. A small aperture; a hole or passage for air… …   The Collaborative International Dictionary of English

  • volcanic gas — USGS PHOTO GLOSSARY OF VOLCANIC TERMS Magma contains dissolved gases that are released into the atmosphere during eruptions. Gases are also released from magma that either remains below ground (for example, as an intrusion) or rises toward the… …   Glossary of volcanic terms

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