Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 47092 ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ Petrophysical properties of Quaternary lavas of Spitsbergen Petrophysical properties of Quaternary lavas of Spitsbergen Ladygin V M Ladygin V M Frolova Ju V Frolova Ju V Genshaft Yu S Genshaft Yu S Moscow State University, Moscow, Russia ru Moscow State University, Moscow, Russia ru Moscow State University, Moscow, Russia ru Moscow State University, Moscow, Russia ru Schmidt United Institute of Physics of the Earth, Russian Academy of Sciences ru Schmidt United Institute of Physics of the Earth, Russian Academy of Sciences ru 5 4 291 298 10 11 2021 https://rjes.ru/en/nauka/article/47092/view

The chemical and mineralogical composition, structure and petrophysical properties of volcanic rocks, composing three Quaternary volcanoes of Spitsbergen island - Sverrefjellet, Halvdanpiggen and Sigurdfjellet - have been studied and compared. The sharp tendency of basalts elastic properties' change in a row of volcanism "rejuvenation'' - Sigurdfjellet - Halvdanpiggen - Sverrefjellet has been obtained. The same links between petrophysical characteristics have been defined for all studied volcanoes. This paper reveals the benefits of petrophysical properties - density r, porosity P, velocity of longitudinal waves Vp, strength Rc - for the definition of lava flows within basaltic outcrops. The petrophysical peculiarities of Spitsbergen basalts have been shown in comparison with basalts from various tectonic unites of the Earth - rifts, island arcs and foldbelts.

The chemical and mineralogical composition, structure and petrophysical properties of volcanic rocks, composing three Quaternary volcanoes of Spitsbergen island - Sverrefjellet, Halvdanpiggen and Sigurdfjellet - have been studied and compared. The sharp tendency of basalts elastic properties' change in a row of volcanism "rejuvenation'' - Sigurdfjellet - Halvdanpiggen - Sverrefjellet has been obtained. The same links between petrophysical characteristics have been defined for all studied volcanoes. This paper reveals the benefits of petrophysical properties - density r, porosity P, velocity of longitudinal waves Vp, strength Rc - for the definition of lava flows within basaltic outcrops. The petrophysical peculiarities of Spitsbergen basalts have been shown in comparison with basalts from various tectonic unites of the Earth - rifts, island arcs and foldbelts.

 Spitsbergen basalts petrophysical properties. Spitsbergen basalts petrophysical properties.

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