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Project > Geological History of Sites > The Volcanic History
The Volcanic History
The Basal Volcanic Complex (ca. 160,000 to 100,000 years) The First Caldera Phase (?30,000 to 20,000 years ?)The island of Nisyros had grown to a mature stratovolcano over a long time
span, including a small central caldera and several satellite craters. It accumulated
a large volume of magma at shallow depth of several kilometres. As the result,
a hydrothermal system was generated, manifested by fumarolic activity in the
craters.
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