Results 141 to 150 of about 314 (187)

Magmatism of Kunashir island (Kuril island arc) from aerogeophysical evidence

Russian Journal of Pacific Geology, 2007
The existence of a lateral volcanic zoning in the Kuril island arc (KIA) was confirmed by the analysis of the 1: 50 000 scale maps of the abundances of natural radioactive elements (NRE). Trends of the NRE ratios were calculated for the magmatic complexes of the KIA, and their relation to fluidization processes was proved. Based on aerogeophysical data
exaly   +2 more sources

Gas Emissions From Volcanoes of the Kuril Island Arc (NW Pacific): Geochemistry and Fluxes [PDF]

Geochemistry, Geophysics, Geosystems, 2018
The Kuril Island arc extending for about 1,200 km from Kamchatka Peninsula to Hokkaido Island is a typical active subduction zone with 40 historically active subaerial volcanoes, some of which are persistently degassing.
Ilya Chaplygin, Dmitry Melnikov, Tobias Fischer   +2 more
exaly   +4 more sources

THE EVOLUTION OF MAGMATISM IN THE LESSER KURIL RIDGE OF THE KURIL ISLAND-ARC SYSTEM

International Geology Review, 1986
A A Tsvetkov
exaly   +2 more sources

The Raikoke Volcanic Massif, Kuril Island Arc

Journal of Volcanology and Seismology, 2021
This study is concerned with the Raikoke volcanic massif, part land, part undersea, situated in the northern Central Kuriles. It consists of Raikoke volcano-island and the Quaternary undersea volcano 3.18. The eruption of June 2019 did considerable damage to the fauna and flora of Raikoke Island, changing its aspect one more time.
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   +1 more source

Granitoids in the basement of the Kurile island arc system

Doklady Earth Sciences, 2014
The Kurile island arc system consists of three large structural elements: the frontal zone, the Greater Kurile Ridge, and the backrc zone adjacent to the latter on the side of the Sea of Okhotsk in the form of submarine volcanic ridges. The frontal zone includes the Pacific slope of the Kurile arc consisting of the underwater Vityaz Ridge and islands ...
E. P. Lelikov, T. A. Emel’yanova
openaire   +1 more source

Melt Inclusions in Minerals of Allivalites of the Kuril–Kamchatka Island Arc [PDF]

, 2001
Frolova, T., Plechov, P., Tikhomirov, P., Churakov, S.   +3 more
openaire   +3 more sources

Geochemistry of Thermal Waters of Ketoi Island, Kuril Island Arc

Journal of Volcanology and Seismology, 2018
The data obtained during the fieldworks in July 2016 were used for the geochemical description of thermal manifestations of Ketoi and Pallas Peak volcanoes on Ketoi Island in the middle of the Kuril Island arc. It is shown that the older edifice of Ketoi Volcano hosts a high temperature hydrothermal system whose surface manifestations are concentrated ...
E. G. Kalacheva, Yu. A. Taran, E. V. Voloshina, T. A. Kotenko   +3 more
openaire   +1 more source

Kurile island-arc volcanism: structural and petrological aspects

Tectonophysics, 1991
Abstract This study discusses the structural and spatial characteristics of all known Kurile island-arc Quaternary volcanoes, which include 105 that are subaerial and 96 submarine. Volcanic activity in the island arc is distributed in two zones parallel to the Kurile-Kamchatka deep-sea trench. The depth to the seismo-focal zone in the frontal zone is
G.P. Avdeiko, O.N. Volynets, A.Yu. Antonov, A.A. Tsvetkov   +3 more
openaire   +1 more source

Mineralogy, geochemistry and petrogenesis of Kurile island-arc basalts

Contributions to Mineralogy and Petrology, 1989
Whole-rock (major- and trace-element) and mineral chemical data are presented for basaltic rocks from the main evolutionary stages of the Kurile island arc, NW Pacific. An outer, inactive arc contains a Cretaceous-Lower Tertiary sequence of tholeiitic, calcalkaline and shoshonitic basalts.
Bailey, J. C., Frolova, T. l., Burikova, I. A.   +2 more
openaire   +1 more source

Chemical Composition of the Surface and Ground Waters of Matua Island, the Kurile Island Arc

Geochemistry International, 2020
Abstract—The contents of ions of basic salt composition (Na+, K+, Mg2+, Ca2+, $${\text{C}}{{{\text{l}}}^{ - }}{\text{,}}$$$${\text{SO}}_{{\text{4}}}^{{{\text{2}} - }}{\text{,}}$$$${\text{HCO}}_{{\text{3}}}^{ - }$$), dissolved nutrients (Si, P), and trace elements (Li, Rb, Cs, Sr, Ba, B, V, Ge, As, Mo, Mn, Fe, Co, Cu, Zn, Cd, Sb, Tl, Pb, Al, Ga, Ti, Zr,
A. V. Savenko, A. N. Ivanov, V. S. Savenko, O. S. Pokrovsky   +3 more
openaire   +1 more source