Navidad Lonquimay Volcano, Chile Dylan Rothenberg and Caelin Weiss Department of Geology, Colby...
Transcript of Navidad Lonquimay Volcano, Chile Dylan Rothenberg and Caelin Weiss Department of Geology, Colby...
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