BASALTOID MAGMATISM AND THE PROBLEM OF THE GAS POTENTIAL OF THE EAST-BARENTS MEGABASIN

The manifestations of Jurassic–Cretaceous basaltic magmatism in the sedimentary cover of the Barents Sea continental margin have been fixed by various methods of geological and geophysical studies. Anomalous seismic horizons related to basaltic sills hosted in terrigenous sequences are traced in plan view as a tongue from Franz Josef Land Archipelago far to the south along the East Barents Trough System close to its depocentral zone with the transformed thinned earth’s crust. The Barents Sea igneous province has been contoured. The results of seismic stratigraphy analysis and timing of basaltic rock occurrences indicate with a high probability that the local structures of the hydrocarbon fields and the Stockman–Lunin Saddle proper were formed and growth almost synchronously with intrusive magmatic activity.

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