Mechanism of magma ascent and deep feeding channels of island arc volcanoes
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dc.contributor.author | Fedotov S.A. | |
dc.date.accessioned | 2019-08-30T06:25:50Z | |
dc.date.available | 2019-08-30T06:25:50Z | |
dc.date.issued | 1975 | |
dc.identifier | http://repo.kscnet.ru/1859/ | |
dc.identifier | http://link.springer.com/article/10.1007/BF02597830 | |
dc.identifier | 10.1007/BF02597830 | |
dc.identifier.citation | Fedotov S.A. (1975) Mechanism of magma ascent and deep feeding channels of island arc volcanoes // Bulletin Volcanologique. Vol. 39. No. 2. pp. 241-254. doi: 10.1007/BF02597830. | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/5016 | |
dc.description.abstract | The paper discusses the mechanism of deep magma activity beneath island are volcanoes and similar structures on the basis of data from geophysical investigations in Kamchatka; the analyses of forces that cause the ascent of magma; and related phenomena that are due to hydrostatic forces.It is shown that the ascent of magma through the astnenosphere occurs most likely in magma columns with a diameter of approximately 700–2,000 m and with a velocity of about 0.8–3 m/year. A regular line of such columns spaced in Kamchatka at a distance of about 30 km gives rise to a chain of separate Etrge volcanoes or volcanic centers. Ultrabasic magmas are most likely accumulated near the M discontinuity, whereas the apparent place of andesitic magma accumulation is in the earth’s crust near the boundary between the basement and sediments. | |
dc.language.iso | en | |
dc.publisher | F. Giannini | |
dc.subject | 38.37.19 Магматизм и магматические горные породы | |
dc.subject | 38.37.25 Вулканология | |
dc.subject | Вулканы Камчатки | |
dc.title | Mechanism of magma ascent and deep feeding channels of island arc volcanoes | |
dc.type | Статья |
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