Global Volcanism Program
Por um escritor misterioso
Descrição
Volcán Copahue is an elongated composite cone constructed along the Chile-Argentina border within the 6.5 x 8.5 km wide Trapa-Trapa caldera that formed between 0.6 and 0.4 million years ago near the NW margin of the 20 x 15 km Pliocene Caviahue (Del Agrio) caldera. The eastern summit crater, part of a 2-km-long, ENE-WSW line of nine craters, contains a briny, acidic 300-m-wide crater lake (also referred to as El Agrio or Del Agrio) and displays intense fumarolic activity. Acidic hot springs occur below the eastern outlet of the crater lake, contributing to the acidity of the Río Agrio, and another geothermal zone is located within Caviahue caldera about 7 km NE of the summit. Infrequent mild-to-moderate explosive eruptions have been recorded since the 18th century. Twentieth-century eruptions from the crater lake have ejected pyroclastic rocks and chilled liquid sulfur fragments.
Smithsonian Institution - Global Volcanism Program: Worldwide Holocene Volcano and Eruption Information
Global Volcanism Program, Sheveluch
Timeline of eruption history based on the Global Volcanism Program
Timeline of eruption history based on the Global Volcanism Program
Number of unique volcanic hazard maps in the database sorted by Global
Global Volcanism Program Eruptions, Earthquakes & Emissions
Global Volcanism Program - GVP information balloon for Colima as seen in the Google Earth volcano layer.
Global Volcanism Program Krýsuvík-Trölladyngja
Global Volcanism Program
Global Volcanism Program
Pin on Volcanes
Global Volcanism Program
Global Volcanism Program
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