The forearc extension in the Central Kuril Islands and the trench rollback
- Authors: Baranov B.V.1, Lobkovsky L.I.1, Dozorova K.A.1
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Affiliations:
- Shirshov Institute of Oceanology
- Issue: Vol 469, No 1 (2016)
- Pages: 762-765
- Section: Geophysics
- URL: https://journals.rcsi.science/1028-334X/article/view/188681
- DOI: https://doi.org/10.1134/S1028334X16070217
- ID: 188681
Cite item
Abstract
On the basis of bathymetric and seismic data, obtained during cruises 37 (2005) and 41 (2006) of R/V Akademik M.A. Lavrentiev, a new structural scheme of transverse faults in the forearc of the Central Kuril Islands was compiled, the fault kinematics was studied, and a model of the extension zone in the structural pattern of the study area was proposed. According to this model, the trench rollback and development of back-arc basins resulted from the continuous supply of material into the upper mantle convection cell owing to subduction and an increase in the dynamic pressure that pushes the subducting plate, causing it to migrate toward the ocean.
About the authors
B. V. Baranov
Shirshov Institute of Oceanology
Author for correspondence.
Email: bbaranov@ocean.ru
Russian Federation, Nakhimovskii pr. 36, Moscow, 117218
L. I. Lobkovsky
Shirshov Institute of Oceanology
Email: bbaranov@ocean.ru
Russian Federation, Nakhimovskii pr. 36, Moscow, 117218
K. A. Dozorova
Shirshov Institute of Oceanology
Email: bbaranov@ocean.ru
Russian Federation, Nakhimovskii pr. 36, Moscow, 117218