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Nisyros Volcano - The Kos - Yali - Nisyros Volcanic Field (Hardcover, 1st ed. 2018)
Loot Price: R5,420
Discovery Miles 54 200
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Nisyros Volcano - The Kos - Yali - Nisyros Volcanic Field (Hardcover, 1st ed. 2018)
Series: Active Volcanoes of the World
Expected to ship within 12 - 17 working days
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This book presents the first compilation of scientific research on
the island of Nisyros, involving various geoscientific disciplines.
Presenting a wealth of illustrations and maps, including a
geological map of the volcano, it also provides valuable insights
into the geothermal potential of Greece. The island of Nisyros is a
Quaternary volcano located at the easternmost end of the South
Aegean Volcanic Arc. The island is nearly circular, with an average
diameter of 8 km, and covers an area of approximately 42 km2. It
lies above a base of Mesozoic limestone and a thin crust, with the
mantle-crust transition located at a depth of approximately 27 km.
The volcanic edifice of Nisyros comprises a succession of
calc-alkaline lavas and pyroclastic rocks, as well as a summit
caldera with an average diameter of 4 km. Nisyros marks the most
recent volcano in the large prehistoric volcanic field between
Kos-Yali-Strongyli-Pyrgousa-Pachia-Nisyros, where the largest
eruption ("Kos Plateau Tuff") in the history of the eastern
Mediterranean devastated the Dodecanese islands 161,000 years ago.
Although the last volcanic activity on Nisyros dates back at least
20,000 to 25,000 years, it encompasses an active hydrothermal
system underneath the volcano with temperatures of roughly 100
DegreesC at the Lakki plain, the present-day caldera floor and 350
DegreesC at a depth of 1,550 m. A high level of seismic unrest,
thermal waters and fumarolic gases bear testament to its continuous
activity, which is due to a large volume of hot rocks and magma
batches at greater depths, between 3,000 and 8,000 m. Violent
hydrothermal eruptions accompanied by major earthquakes occurred in
1873 and 1888 and left behind large, "world-wide unique" explosion
craters in the old caldera. Through diffuse soil degassing, the
discharge of all hydrothermal craters in the Lakki plain releases
68 tons of hydrothermal-volcanic derived CO2 and 42 MW of thermal
energy per day. This unique volcanic and hydrothermal environment
is visited daily by hundreds of tourists.
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