GEOL 101 Lecture 5 Dr. J. Steven Kite West Virginia University Volcanoes “ Volcano Volcano” 1979 1979 Songs You Know by Heart Songs You Know by Heart Jimmy Jimmy Buffett Buffett Spring Study Abroad Fair Office of International Programs invites students to WVU’s 2009 Spring Study Abroad Fair 10 a.m.-4 p.m. Jan. 28 Mountainlair ballrooms. The fair will feature study abroad programs, and faculty leaders and OIP staff will be on hand to answer questions. There will be door prizes
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
GEOL 101 Lecture 5Dr. J. Steven Kite
West Virginia University
Volcanoes
““VolcanoVolcano””
19791979 Songs You Know by HeartSongs You Know by Heart
Jimmy Jimmy
BuffettBuffett
Spring Study Abroad Fair
Office of International Programs invites students to
WVU’s 2009 Spring Study Abroad Fair10 a.m.-4 p.m. Jan. 28
Mountainlair ballrooms.The fair will feature study abroad programs,
and faculty leaders and OIP staff will be on hand to answer questions. There will be door prizes
Start Working on Test Questions are available on my web
sitehttp://www.geo.wvu.edu/~kite/teaching.htm
Bring “Magma Chamber”(Lava Lamp)
Volcanoes:• Composition of Magma:
Important To Nature of Volcanic Eruptions and Resulting Landforms.
3 Eruption Types:
• Gaseous: Few Landforms• Explosive: Viscous Magma -• Effusive: Fluid Magma -Basaltic - Lava
3 Eruption Types:
• Gaseous: Few Landforms
Explosive Eruption:
Pyroclastics
Pinatubo, Philippines
1991
Fluid BasalticLava FlowMauna Loa, March 1983
Magma Viscosity Analog
2 Types of Eruption Apertures:
•Fissures•Vents
Basaltic Fissure Eruption, Hawaii 1983
Popocatepetl, Mexico: 1994
Fissure Eruptions• Basaltic: Fluid Lava
– Flood Basalts With Many Feeder Dikes; Basalt Plateaus
Plutons• Batholith - Huge• Stock - Big• Dike - Across Country Rock Layering• Sill - Parallel Country Rock Layering• Laccolith - Igneous “Blister”• Pipe or Neck- Feeder Tube
Igneous Plutons
Igneous Dikes
Finger Mountain Sill Jurassic “Basalt”
Upper Taylor Glacier, Antarctica ~ 200 m thick
intruded into Sandstone
Photo: Bernard M.Gunn, 1959www.geokem.com/images/pix/G-FDOL.jpg