Mechanism of magma ascent and deep feeding channels of island arc volcanoes
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...
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ftinstvs:oai:repo.kscnet.ru:1859 2023-12-24T10:18:10+01:00 Mechanism of magma ascent and deep feeding channels of island arc volcanoes Fedotov S.A. 1975 text http://repo.kscnet.ru/1859/ http://repo.kscnet.ru/1859/1/BF02597830.pdf http://link.springer.com/article/10.1007/BF02597830 https://doi.org/10.1007/BF02597830 en eng http://repo.kscnet.ru/1859/1/BF02597830.pdf Fedotov S.A. </view/creators/Fedotov=3AS=2EA=2E=3A=3A.html> (1975) Mechanism of magma ascent and deep feeding channels of island arc volcanoes // Bulletin Volcanologique. Vol. 39, Iss. 2. pp. 241-254. doi:10.1007/BF02597830 <https://doi.org/10.1007/BF02597830>. doi:10.1007/BF02597830 38.37.19 Магматизм и магматические горные породы 38.37.25 Вулканология _ Вулканы Камчатки Статья PeerReviewed 1975 ftinstvs https://doi.org/10.1007/BF02597830 2023-11-28T01:10:06Z 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. Text Kamchatka КАМЧАТК* Institute of Volcanology and Seismology, Petropavlovsk-Kamchatsky: IVS FEB RAS Repository Bulletin Volcanologique 39 2 241 254 |
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Institute of Volcanology and Seismology, Petropavlovsk-Kamchatsky: IVS FEB RAS Repository |
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ftinstvs |
language |
English |
topic |
38.37.19 Магматизм и магматические горные породы 38.37.25 Вулканология _ Вулканы Камчатки |
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38.37.19 Магматизм и магматические горные породы 38.37.25 Вулканология _ Вулканы Камчатки Fedotov S.A. Mechanism of magma ascent and deep feeding channels of island arc volcanoes |
topic_facet |
38.37.19 Магматизм и магматические горные породы 38.37.25 Вулканология _ Вулканы Камчатки |
description |
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. |
format |
Text |
author |
Fedotov S.A. |
author_facet |
Fedotov S.A. |
author_sort |
Fedotov S.A. |
title |
Mechanism of magma ascent and deep feeding channels of island arc volcanoes |
title_short |
Mechanism of magma ascent and deep feeding channels of island arc volcanoes |
title_full |
Mechanism of magma ascent and deep feeding channels of island arc volcanoes |
title_fullStr |
Mechanism of magma ascent and deep feeding channels of island arc volcanoes |
title_full_unstemmed |
Mechanism of magma ascent and deep feeding channels of island arc volcanoes |
title_sort |
mechanism of magma ascent and deep feeding channels of island arc volcanoes |
publishDate |
1975 |
url |
http://repo.kscnet.ru/1859/ http://repo.kscnet.ru/1859/1/BF02597830.pdf http://link.springer.com/article/10.1007/BF02597830 https://doi.org/10.1007/BF02597830 |
genre |
Kamchatka КАМЧАТК* |
genre_facet |
Kamchatka КАМЧАТК* |
op_relation |
http://repo.kscnet.ru/1859/1/BF02597830.pdf Fedotov S.A. </view/creators/Fedotov=3AS=2EA=2E=3A=3A.html> (1975) Mechanism of magma ascent and deep feeding channels of island arc volcanoes // Bulletin Volcanologique. Vol. 39, Iss. 2. pp. 241-254. doi:10.1007/BF02597830 <https://doi.org/10.1007/BF02597830>. doi:10.1007/BF02597830 |
op_doi |
https://doi.org/10.1007/BF02597830 |
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Bulletin Volcanologique |
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39 |
container_issue |
2 |
container_start_page |
241 |
op_container_end_page |
254 |
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1786206908308258816 |