![]() ![]() ![]() This is different than boiling seawater to salty liquid brine. When lava has contact with seawater, the supplied heat is enough to boil the seawater completely dry. New research sheds light on the thermal and chemical processes occurring at the lava entry. ![]() Flocks of seabirds gathered to eat the boiled fish, which floated up to the ocean's surface near the lava entry. At Stromboli, lava flows entered the sea during 2003 and sent up billowing white steam clouds. So far, an area the size of 30 football fields has been tacked on to the shoreline. Lava enters the ocean occasionally-the last time was in August 2004.Īt present, an eruption of Montagu Island in the South Atlantic (which began in September 2005) is pouring lava into the ocean. It erupts a similar kind of basalt lava to Kīlauea and Mauna Loa volcanoes. Part of Reunion Island is made up of the volcano Piton de la Fournaise, which is currently active. This process, over long periods of geological time, forms a chain of volcanic islands.Īn example of an Ocean Island Chain extends from India to Reunion Island, in the Indian Ocean. These are volcanic islands generated by the movement of the Earth's crust over a stationary mantle plume, which causes magma to punch through the crust at intervals. Ocean island volcanoes are in this small category. ![]() Only a small fraction of basaltic volcanoes are on land and are close to the shoreline. Although basalt is the most abundant magma type, most of it erupts beneath the sea, at mid-ocean ridges. It is not the only place in the world where lava flows into the sea, but even so, lava entries of this type are scarce. Kīlauea Volcano is well known for its entries of lava into the ocean. Lava-ocean entries at (top) Piton de la Fournaise Volcano, Indian Ocean (photograph from Imaz Press, Reunion) (middle) Stromboli Volcano, Italy, photograph from Stromboli Online ( ) and (bottom) Kīlauea Volcano, Hawai`i (photograph by Don Swanson). ![]()
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