Results 161 to 170 of about 27,288 (232)

Patterns of the Seismic Cycle in the Kuril Island Arc from GPS Observations

Pure and Applied Geophysics, 2020
The 2006–2007 Simushir earthquakes started a new episode in the rupture history of the Kuril-Kamchatka subduction zone. This earthquake doublet terminated the seismic silence in the Central Kurils, which had lasted for almost a century. The analysis of seismologic, geologic and GPS data over the Kuril Islands region allows us to reveal the patterns of ...
Irina S. Vladimirova, Leopold I. Lobkovsky, Yurii V. Gabsatarov, Grigory M. Steblov, Nikolay F. Vasilenko, Dmitry I. Frolov, Alexander S. Prytkov   +6 more
openaire   +2 more sources

Geochemistry and petrogenesis of volcanic rocks in the Kuril island arc

Petrology, 2010
Newly obtained precise analytical data on trace elements and radiogenic Sr, Nd, and Pb isotopes testify to anomalous geochemical characteristics of mafic and intermediate Quaternary lavas in Paramushir (in the north of the Kuril arc), Kunashir and Iturup (in the south) islands, which are the largest three islands of the Kuril island arc. The high K and
Yu. A. Martynov, A. I. Khanchuk, J. -I. Kimura, A. V. Rybin, A. Yu. Martynov   +4 more
openaire   +2 more sources

Pleistocene basaltic volcanism of Kunashir Island (Kuril island arc): Mineralogy, geochemistry, and results of computer simulation

Petrology, 2017
New mineralogical, geochemical, and isotope data in combination with numerical modeling were used to reconstruct the physicochemical and geodynamic conditions of the formation of Pleistocene basalts of Kunashir Island. Although they are petrologically close to the Holocene basalts of Tyatya Volcano, their eruption occurred during a brief period of ...
A. Yu. Martynov, Yu. A. Martynov
openaire   +2 more sources

Ore Elements and Minerals in The Elements of Alaid Volcano (Kuril Island Arc)

Вулканология и сейсмология
Sublimates tested in 2013–2020 were studied. in the near-crater zone and on the slopes of the Alaid volcano, located in the Kuril Island arc. It has been established that in the near-crater zone there are native metals confined to zones of acid leaching, within which the original lavas and tuffs have been transformed into opal-like formations or rocks ...
V. V. Petrova, V. A. Rashidov, A. B. Perepelov, V. I. Silaev, L. P. Anikin, N. V. Gorkova, V. V. Mikheev   +6 more
openaire   +2 more sources

Geochemistry of granitoids from the basement of the Kuril island arc system

Geochemistry International, 2014
This paper reports the characteristics of granitoids from the Pacific slope of the Kuril island arc system, which were discovered by the authors during geological and geophysical operations in three cruises of the R/V Akademik M. Lavrent’ev. The major and trace element compositions of these rocks were determined, their role in the formation of the ...
E. P. Lelikov, T. A. Emelyanova
openaire   +2 more sources

Te- and Se-bearing epithermal Au-Ag mineralization, Prasolovskoye, Kunashir Island, Kuril island arc

Economic Geology, 1995
Au-Ag-Te-Se-bearing epithermal mineralization at Prasolovskoye, northwest Kunashir Island Kurils, occurs along fault zones developed within a circular intrusive zone in Miocene to Quaternary age volcanic rocks. The ores show complex textures and mineralogy and can be divided into three stages based on tectonic fracturing and mineral associations ...
Chil-Sup So, Vitaly Ya. Dunchenko, Seong-Taek Yun, Maeng-Eon Park, Seon-Gyu Choi, Kevin L. Shelton   +5 more
openaire   +2 more sources

Magmatism of the submarine Vityaz Ridge (Pacific slope of the Kuril Island Arc)

Oceanology, 2008
Original results of igneous rock studies are presented. The rocks were dredged during a marine expedition (cruise 37 of R/V Akademik M.A. Lavrent’ev in August–September, 2005) in the region of the submarine Vityaz Ridge and Kuril Arc outer slope. Several age complexes (Late Cretaceous, Eocene, Late Oligocene, Miocene, and Pliocene-Pleistocene) are ...
E. P. Lelikov, T. A. Emel’yanova, B. V. Baranov   +2 more
openaire   +2 more sources

Partial melting under shallow-crustal conditions: a study of the Pleistocene caldera eruption of Mendeleev volcano, southern Kuril Island Arc

Journal of Petrology, 2023
The southern part of the Kuril Island Arc is one of the world’s most active modern volcanic zones, with widespread felsic caldera volcanism, but it has been less well studied compared with other arcs.
Alexey Kotov, S. Smirnov, I. Nizametdinov, M. Uno, N. Tsuchiya, I. Maksimovich   +5 more
semanticscholar   +1 more source

Integrated Geological and Geophysical Surveys of the Lisyansky Submarine Volcano, Kuril Island Arc

Journal of Volcanology and Seismology, 2022
Yu. I. Blokh, V. I. Bondarenko, A. S. Dolgal, P. N. Novikova, V. V. Petrova, O. V. Pilipenko, V. A. Rashidov, A. A. Trusov   +7 more
openaire   +2 more sources

Genesis and Nd Isotope Composition of Ferromanganese Deposits of the Sea of Okhotsk and the Kuril Island Arc

Russian Geology and Geophysics, 2021
—The Nd isotope composition of ferromanganese deposits (FMD) from the central part of the Sea of Okhotsk and the Kuril island arc has been studied.
P. Mikhailik, I. Vishnevskaya, E. Mikhailik, M. Blokhin, M. V. Chervyakovskaya, V. A. Rashidov, X. Ren   +6 more
semanticscholar   +1 more source