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.
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Official URL: http://link.springer.com/article/10.1007/BF0259783...
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.
Item Type: | Article |
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Title: | Mechanism of magma ascent and deep feeding channels of island arc volcanoes |
Language: | English |
Journal or Publication Title: | Bulletin Volcanologique |
ISSN Print: | 0366-483X |
ISSN Online: | 1432-0819 |
Subjects: | State scientific and technical information rubricator (ГРНТИ) > 38 ГЕОЛОГИЯ > 38.37 Петрография > 38.37.19 Магматизм и магматические горные породы State scientific and technical information rubricator (ГРНТИ) > 38 ГЕОЛОГИЯ > 38.37 Петрография > 38.37.25 Вулканология Volcanoes > 1 Volcanoes of the Kurile-Kamchatka Region > 1.1 Kamchatka > _ Volcanoes of Kamchatka |
Depositing User: | С.Э. Васильев |
Date Deposited: | 08 Oct 2014 03:09 |
Last Modified: | 08 Oct 2014 03:09 |
URI: | http://repo.kscnet.ru/id/eprint/1859 |
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