English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Резюме Rus PDF Recent knowledge of active oceanic margins with using of geodynamic simulations under constraints of gravity anomalies is analysed in this work. The aim of the analytical review is estimation of density and viscosity distribution in the subduction zones of the well investigated deep trenches of Pacific Ocean. The comparative analysis allows to apply these parameters estimations to the Kuril subduction zone. For the deep structure of the Kuril trench subduction zone the average excess of descending slab density versus the mantle layers at the same depths in the range for 0.02–0.05 g/cm can be expected. The mantle viscosity varies in the range from maximum 1023 Pa s within the lower layers to 1019 Pa s inside the low viscosity wedge. The viscosity of the descending slab decreases with the depth. The astenosphere viscosity is probably by 10 factor higher than low viscosity wedge. Low viscosity wedge of the Kuril transition zone should be big enough to be the cause of back-arc spreading and the Kuril deep-sea basin forming. The geoid anomalies are the significant additional informative source for investigation of the deep structure of the transition zones.

geosistemy perehodnyh zon

Density and rheological inhomogeneities in the mantle of the active oceanic margins of western part of Pacific Ocean and the Kuril deep-sea trench area