Middle-Late Paleozoic Duplex Rifting of the Barents Continental Margin and the Role Played in Formation of the East Barents Megabasin

Shipilov E. V.; Shkarubo S. I.; Lobkovskiy L. I.

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Middle-Late Paleozoic Duplex Rifting of the Barents Continental Margin and the Role Played in Formation of the East Barents Megabasin

机译：巴伦支大陆边缘的中晚期古生代双重裂谷及其在东巴伦支巨型盆地的形成中的作用

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Based on analysis and interpretation of seismic and other geological-geophysical data, duplex rifting is identified in the Paleozoic evolution of the South Barents Basin. Its first, pre-Late Devonian, phase was manifested on the southeastern side zone that limited the Pechora Plate structures. After a certain pause, a second, pre-Late Carboniferous phase involved the western Barents Sea region, including the slope of the Central Barents Rise and the western South Barents Basin. Thus, Late Paleozoic riftogenic structures in the western and southeastern South Barents Basin formed at different times. All this caused an asymmetric structure profile and asynchronicity of evolution of the rift system sides. In the Mesozoic, under the effect of formation of the Novaya Zemlya fold-and-thrust structure, the asymmetry of the riftogenic trough became even more contrasting.

机译：基于对地震和其他地质-地球物理数据的分析和解释，在南巴伦支盆地的古生代演化中发现了双重裂谷作用。它的第一个晚泥盆世前期出现在限制佩乔拉板块构造的东南侧带。经过一定的停顿后，第二个晚期石炭纪阶段涉及西部的巴伦支海地区，包括中巴伦支海隆起的斜坡和南巴伦支盆地的西部。因此，南巴伦支盆地西部和东南部的晚古生代裂谷构造在不同的时间形成。所有这些都导致了裂谷系统侧的结构轮廓不对称和演化的异步性。在中生代，在Novaya Zemlya褶皱和冲断结构形成的影响下，裂谷槽的不对称性更加鲜明。

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《Doklady Earth Sciences》 |2018年第2期|1288-1292|共5页
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Shipilov E. V.; Shkarubo S. I.; Lobkovskiy L. I.;
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Marine Arctic Geol Expedit, Murmansk 183038, Russia;

Russian Acad Sci, Shirshov Inst Oceanol, Moscow 117218, Russia;

Russian Acad Sci, Polar Geophys Inst, Kola Sci Ctr, Murmansk 183010, Russia;

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Middle-Late Paleozoic Duplex Rifting of the Barents Continental Margin and the Role Played in Formation of the East Barents Megabasin

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