Особенности проявления ультрамедленного спрединга в конвергентных зонах

А. В. Кохан; Е. П. Дубинин; Н. М. Сущевская

Vol. 30 No. 2 (2016),

Vol. 30 No. 2 (2016)

Peculiarities of manifestation of ultra-slow spreading in convergent zones

Published 2016-06-30

А. В. Кохан⁺⁻
Е. П. Дубинин⁺⁻
Н. М. Сущевская⁺⁻

А. В. Кохан

Е. П. Дубинин

Н. М. Сущевская

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Keywords

ultraslow spreading
convergent zones
Scotia sea
Mariana trough

Section

Results of the Scientific Researches

Abstract

Geodynamic environments in convergent zones on active continental margins, in which the conditions favorable for manifestations of ultra-slow spreading may occur, are reviewed in this article. As a rule, the ultra-slow spreading in these areas is observed in the zones of back-arc extension: a) under conditions of back-arc rifting (Bransfield strait rift), b) under back-arc inter-subduction spreading (northern Fiji basin, Ayu and Sorol troughs), c) under disperse or diffuse spreading in back-arc areas (central basin of the Scotia sea and modern diffuse spreading in the south-eastern part of the Scotia sea); d) under inter-arc rifting/spreading (Mariana trough).

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