Results 161 to 170 of about 2,903 (189)

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
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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
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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
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MINERAL ZONING OF THE QUATERNARY LAVAS OF THE KURILE ISLAND ARC

International Geology Review, 1990
(1990). MINERAL ZONING OF THE QUATERNARY LAVAS OF THE KURILE ISLAND ARC. International Geology Review: Vol. 32, No. 2, pp. 128-142.
O. N. Volynets, G. P. Avdeyko, A. A. Tsvetkov, A. Yu. Antonov, I. A. Markov, T. M. Filosofova   +5 more
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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
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Geochemistry of quaternary volcanic rocks from the Kurile-Kamchatka island arc

Journal of Volcanology and Geothermal Research, 1982
Abstract The distribution of trace and minor elements in Quaternary volcanic rocks of the Kurile-Kamchatka region was investigated. Studies carried out within this region made it possible to distinguish the rock series with low, moderate and high contents of K, Rb, Be, La and other lithophile elements.
E.I. Popolitov, O.N. Volynets
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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
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SPECIFIC FEATURES OF RECENT TECTONISM ALONG THE KURIL ISLANDS ARC

International Geology Review, 1962
Recent movements, volcanism, seismology, gravimetry and deep seismic sounding data along the belt of the Kuril Islands are considered. It is established that the central portion of the arc, restricted by the Bussol and Krusenstern strait fractures, is characterized by a high speed of recent downwarpings, still increased by recent volcanic activity, and
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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
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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
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