navidad lonquimay volcano, chile dylan rothenberg and caelin weiss department of geology, colby...
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NavidadLonquimay Volcano, Chile
Dylan Rothenberg and Caelin WeissDepartment of Geology, Colby College
http://www.karin-michael.net/Home/Blog/Entries/2013/4/14_Helmut_+_Adela_+_Volcanos.html
Location
• Araucanía region of Chile, in Parque Nacional Nalcas.
• Latitude- 38.377°S. Longitude- 71.58°W.
• Caused by the subduction of the oceanic Nazca plate beneath the South American plate.
• Earthquake and seismic activity.
https://feww.wordpress.com/2010/09/28/nazca-plate-subduction-probably-accelerating/
http://shleyfergeog2012.blogspot.com/
http://commons.wikimedia.org/wiki/File:Lonquimay.png
http://www.belupress.com/en/carte2.html
• Navidad is a cone located on the stratovolcano Lonquimay.
• Summit of 2,865 meters.• 5 volcanic sequences of
the Lonquimay volcano.• Navidad is a pyroclastic,
asymmetrical cone.• It now sits about 210
meters high and 700 meters in diameter at the base. http://flickrhivemind.net/Tags/lonquimay,nalcas/Interesting
Forms and Dimensions
http://www.mountain-forecast.com/peaks/Lonquimay
The Navidad Eruption
• Began on December 25, 1988 following weeks of seismic activity.
• Stombolian eruptions (the first in 100 years!).
• Gas emissions, Strombolian eruptions, magmatic degassing, lava flows, vent-clearing emissions.
• Ended on January 25, 1990.
http://enlonquimay.com/2013/12/25/volcan-lonquimay-erupcion/
Hazards and Contributions
• Fatal gas emissions.• Far-reaching ashfall impact.• Loss of economically
valuable livestock and forests.
• Seismic activity and ashfall- collapse of buildings and infrastructure.
• Volcano as a tourist attraction.
http://flickrhivemind.net/Tags/lonquimay,volcan/Interesting
Basaltic Andesite
Andesite
Dacite
Volcanic Deposits
Rock Types• Sedimentary and Igenous• Calc-Alkaline Rocks are common.
Navidad Today
• There are ski slopes nearby• No mining at Navidad• Geothermal energy is utilized in
Chile
• Consistently monitored• Allows scientists to understand the birth of a
volcano (similar to Surtsey)
Monitoring Navidad
• http://earthquake.usgs.gov/hazards/products/foreign/• http://www.volcano.si.edu/volcano.cfm?vn=357100• http://www.extremescience.com/plate-boundaries.htm• http://www.volcano.si.edu/volcano.cfm?vn=357100&vtab=Bulletin• http://www.volcanolive.com/lonquimay.html• http://enlonquimay.com/2013/12/25/volcan-lonquimay-erupcion/• http://www.volcanodiscovery.com/lonquimay-eruptions.html#er196• http://ludens.cl/andin/lonqui/lonqui.html• http://www.volcanolive.com/lonquimay.html• http://www.iavcei.org/documents/pucon04/c2.pdf• http://www.volcano.si.edu/volcano.cfm?vn=357100• http://www.summitpost.org/volc-n-lonquimay/815349
Bibliography