Abstract
Based on the interpretation of seismic sections via seismic reflection method, the lines of which intersect the positive magnetic anomalies in the St. Anna Trough and on the North Kara Shelf, the authors have substantiated the position of the Early Cretaceous dike belt in the north of the Barents-Kara platform for the first time. They traced the belt from the arch-block elevation of arch. Franz Josef Land, which belongs to the Svalbard platе through the Saint Anna Trough and further into the Kara platе to arch. Severnaya Zemlya. The distinguished dyke belt has discordant relationships with the structural-tectonic plan of the region under consideration. The authors illustrate the manifestations of dyke magmatism in the marked tectonic elements in seismic sections, and conclude that the dyke belt relates to the formation of the structural system of the Arctic basin.
Highlights
В. Возраст и состав базальтов центральной и юго-западной частей архипелага Земля ФранцаИосифа // Тектоника и геодинамика складчатых поясов и платформ фанерозоя
Based on the interpretation of seismic sections via seismic reflection method, the lines of which intersect the positive magnetic anomalies in the St
Anna Trough and on the North Kara Shelf, the authors have substantiated the position of the Early Cretaceous dike belt in the north of the Barents-Kara platform for the first time
Summary
В. Возраст и состав базальтов центральной и юго-западной частей архипелага Земля ФранцаИосифа // Тектоника и геодинамика складчатых поясов и платформ фанерозоя. В. Баренцевоморская магматическая провинция: геолого-геофизические свидетельства и новые результаты определения 40Ar/39Ar возраста // Докл. А. О тектоно-геодинамических взаимоотношениях Евразийского бассейна и хребта Ломоносова с континентальной окраиной Сибири по новым сейсмическим данным // Аркт ика: экология и экономика.
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