The Ischia volcanic complex forms a rectangular,
6 x 9 km island immediately SW of the Campi
Flegrei area at the western side of the Bay of
Naples. The eruption of the trachytic Green Tuff
ignimbrite about 56,000 years ago was followed
by caldera formation. The high point on the
island, 789-m-high Monte Epomeo, is a volcanic
horst composed of the Green Tuff ignimbrite
deposit that was submerged after its eruption and
then uplifted. Volcanism on the island has been
significantly affected by tectonism that formed a
series of horsts and grabens; at least 800 m of
uplift has formed as a result of resurgent doming
during past 33,000. Volcanism during the
Holocene produced a series of pumiceous tephras, tuff rings, lava domes, and lava flows, and a
major collapse of Mount Epomeo produced a large submarine debris-avalanche deposit. The latest
eruption of Ischia, in 1302 AD, produced a spatter cone and the Arso lava flow, which reached the
NE coast. (Global Volcanism Program)
click on pictures to enlarge
HOME
April / May 2007
Golf di Napoli
Location: 40°47´N, 17°10´E
6 x 9 km island immediately SW of the Campi
Flegrei area at the western side of the Bay of
Naples. The eruption of the trachytic Green Tuff
ignimbrite about 56,000 years ago was followed
by caldera formation. The high point on the
island, 789-m-high Monte Epomeo, is a volcanic
horst composed of the Green Tuff ignimbrite
deposit that was submerged after its eruption and
then uplifted. Volcanism on the island has been
significantly affected by tectonism that formed a
series of horsts and grabens; at least 800 m of
uplift has formed as a result of resurgent doming
during past 33,000. Volcanism during the
Holocene produced a series of pumiceous tephras, tuff rings, lava domes, and lava flows, and a
major collapse of Mount Epomeo produced a large submarine debris-avalanche deposit. The latest
eruption of Ischia, in 1302 AD, produced a spatter cone and the Arso lava flow, which reached the
NE coast. (Global Volcanism Program)
click on pictures to enlarge
HOME
April / May 2007
Golf di Napoli
Location: 40°47´N, 17°10´E