Publication
Scales of recent submarine volcanism
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Authors
Advisor(s)
Abstract(s)
Submarine volcanic activity is confined to (1) rift zones of mid-ocean ridges (MOR) and transform faults, (2) hot spots (HS) and belts of hot spots («hot lines »), (3) systems of island arcs (IA) and (4) marginal seas (MS). Volcanic activity may occur on the oceanic flanks of deep sea trenches and marginal swells between trenches and the ocean floor.
Rift zones of MOR exhibit the deep-sea fissure eruptions of low-potassium oceanic tholeiites with some variations of mineralogical and chemical compositions. They produce pillow and ropy flows, volcanic cones generally being not formed. As a result of these eruptions, more than 1 X 10¹⁰ t of lava per year pour out on the ocean floor.
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Description
International Symposium on the Activity of Oceanic Volcanoes. Ponta Delgada, 4-9 August 1980.
Keywords
Petrology Volcanism
Pedagogical Context
Citation
Avdeiko, G. P. (1982). Scales of recent submarine volcanism. "Arquipélago. Série Ciências da Natureza", 3: 41-42.