Вулкан Ключевской. Библиография
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Ivanov B.V., Chirkov A.M., Dubik Y.M., Khrenov A.P., Dvigalo V.N., Razina A.A., Stepanov V.V., Chubarova O.S. Active Volcanoes of Kamchatka and Kuril Islands: Status in 1982 // Volcanology and Seismology. 1988. Vol. 6. № 4. P. 623-634.
Ivanov B.V., Gavrilenko G.M., Dvigalo V.N., Ovsyannikov A.A., Ozerov A.Yu., Razina A.A., Tokarev P.I., Khrenov A.P., Chirkov A.M. Activity of Volcanoes in Kamchatka and the Kuril Islands in 1983 // Volcanology and Seismology. 1988. Vol. 6. № 6. P. 959-972.
Ivanov B.V., Gorelchik V.I., Andreev V.N., Maksimov A.P., Stepanov V.V., Chirkov A.M. The 1972-1974 eruption of Klyuchevskoy volcano, Kamchatka // Bulletin Volcanologique. 1981. Vol. 44. Vol. 1. P. 1-10. doi: 10.1007/BF02598184.
   Аннотация
A new Klyuchevskoy volcano eruptive cycle encompasses terminal (March 30, 1972 to August 23, 1974) and lateral (August 23, 1974 to December, 1974) eruption stages. The terminal eruption stage resulted in lava flows and parasitic cones that formed on the south-western flank of the volcano.
Eruption products are moderately alkalic high-alumina olivine-bearing andesite-basalts. The terminal eruption stage was accompanied by volcanic earthquakes and volcanic tremor. The lateral eruption was accompanied by explosive earthquakes. Volcanic tremor was the most useful prognostic sign indicating the onset of the lateral eruption. Eruptive mechanisms are discussed.
Jiang Guoming, Zhao Dapeng, Zhang Guibin Seismic tomography of the Pacific slab edge under Kamchatka // Tectonophysics. 2009. Vol. 465. № 1–4. P. 190 - 203. doi: 10.1016/j.tecto.2008.11.019.
   Аннотация
We determine a 3-D P-wave velocity structure of the mantle down to 700 km depth under the Kamchatka peninsula using 678 P-wave arrival times collected from digital seismograms of 75 teleseismic events recorded by 15 portable seismic stations and 1 permanent station in Kamchatka. The subducting Pacific slab is imaged clearly that is visible in the upper mantle and extends below the 660-km discontinuity under southern Kamchatka, while it shortens toward the north and terminates near the Aleutian–Kamchatka junction. Low-velocity anomalies are visible beneath northern Kamchatka and under the junction, which are interpreted as asthenospheric flow. A gap model without remnant slab fragment is proposed to interpret the main feature of high-V anomalies. Combining our tomographic results with other geological and geophysical evidences, we consider that the slab loss may be induced by the friction with surrounding asthenosphere as the Pacific plate rotated clockwise at about 30 Ma ago, and then it was enlarged by the slab-edge pinch-off by the asthenospheric flow and the presence of Meiji seamounts. As a result, the slab loss and the subducted Meiji seamounts have jointly caused the Pacific plate to subduct under Kamchatka with a lower dip angle near the junction, which made the Sheveluch and Klyuchevskoy volcanoes shift westward.
Kersting Annie B., Arculus Richard J. Pb isotope composition of Klyuchevskoy volcano, Kamchatka and North Pacific sediments: Implications for magma genesis and crustal recycling in the Kamchatkan arc // Earth and Planetary Science Letters. 1995. Vol. 136. № 3–4. P. 133 - 148. doi: 10.1016/0012-821X(95)00196-J.
   Аннотация
Pb isotope data are used to constrain the chemical contribution of the subducted components in the recycling beneath Klyuchevskoy volcano, the most active volcano in the Kamchatkan arc. The Pb isotope ratios of Klyuchevskoy basalts (206Pb/204Pb= 18.26–18.30, 207/Pb204Pb= 15.45–15.48, 208/Pb204Pb= 37.83–37.91) define a narrow range that falls within the Pacific mid-ocean ridge basalt (MORB) field and are among the least radiogenic island arc basalts measured to date. These data are similar to data from three other Quaternary Kamchatkan volcanoes: Tolbachik, Kumroch-Shish, and Maly Semiachik. In contrast, North Pacific sediments (primarily siliceous oozes) collected parallel to the Kamchatkan trench during Ocean Drilling Program Leg 145, have Pb isotope ratios (206Pb/204Pb= 18.51–18.78, 207Pb/204Pb= 15.56–15.64, 208Pb/204Pb= 38.49–38.75) that are more radiogenic than either the Klyuchevskoy basalts or Pacific MORB. Incorporation of even a small amount of sediment in the source of the Klyuchevskoy magmas would shift the Pb isotope ratios of the erupted basalts from the MORB field to more radiogenic values. The absence of 10Be and elevated Pb isotope ratios in the Kamchatkan volcanic lavas, despite the presence of distinctively radiogenic Pb in the North Pacific sediments makes it unlikely that sediments or sediment-derived fluids are involved in the source magmas beneath Kamchatka. The Kamchatkan arc thus represents an “end-member” whereby little or no sediment is involved in terms of elemental recycling and arc magma genesis. The major and trace elements, Pb, Sr and Nd isotope data of the Kamchatkan basalts are most consistently explained if derived from a fluid-fluxed, peridotitic mantle wedge source, wherein the fluid composition is dominantly controlled by dehydration of altered oceanic crust, imparting a radiogenic 87Sr/86Sr, and MORB-like Pb isotope signature to the mantle source. The erupted Klyuchevskoy lavas preserve a slab signature derived from incompatible elements that are strongly partitioned into the fluid. The 30 km of arc crust through which the Klyuchevskoy magmas traverse prior to eruption is not composed of older crust, but must be juvenile, similar in isotopic composition to MORB.
Khrenov A.P., Anan'ev V.V., Baluev E.Yu., Litasov N.E., Ozerov A.Yu. Petrology of Products Erupted from Klyuchevskoi Volcano (Predskazannyi Eruption, 1983) // Volcanology and Seismology. 1988. Vol. 7. № 1. P. 63-94.
Khrenov A.P., Ozerov A.Yu., Litasov N.E., Slezin Yu.B., Murav’ev Ya.D., Zharinov N.A. Parasitic eruption of Klyuchevskoy volcano (Predskazanny eruption, 1983) // Volcanology and Seismology. 1988. Vol. 7. P. 1-24.
Khubunaya S.A., Gontovaya L.I., Sobolev A.V., Khubunaya V.S. On the Magma Chambers beneath Klyuchevskoi Volcano, Kamchatka // Journal of Volcanology and Seismology. 2018. Vol. 12. № 2. P. 14-30. doi: 10.1134/80742046318020045.
   Аннотация
AAbstract—Numerous summit and parasitic eruptions of moderate potassium magnesian and high-alumina basalts and basaltic andesites, their mineralogic and geochemical features, and the composition of in situ chilled melt inclusions in the olivine of cinder lapilli discharged by Klyuchevskoi Volcano all provide evidence of the presence of magma chambers beneath the volcano. This is also supported by a dualism in the variation of CaO and A1203 concentrations in olivine and clinopyroxene during crystallization. The mineralogic features in the high-alumina basalts that were discharged by all parasitic eruptions of Klyuchevskoi provide evidence of magnesian magma being emplaced from a deeper chamber into a shallow high-alumina chamber. The distribution of incoherent elements in the volcano's magnesian and aluminiferous rocks shows that they came from a single mantle source. The geochemical and mineralogic data are in good agreement with the results of geophysical surveys that concern the structure and properties of the lithosphere beneath Klyuchevskoi.
Khubunaya S.A., Gontovaya L.I., Sobolev A.V., Nizkous I.V. Magma Chambers beneath the Klyuchevskoy Volcanic Group // Journal of Volcanology and Seismology. 2007. Vol. 1. № 2. P. 98-118. doi: 0.1134/S0742046307020029.
   Аннотация
A 3D velocity model of the Earth's crust beneath the Klyuchevskoy volcanic group has been constructed using the seismic tomography method. Anomalies of the velocity parameters related to the zones of magma supply to active volcanoes have been distinguished. Petrological data on the composition, temperature, and pressure of generation and crystallization of primary melts of Klyuchevskoy volcano magnesian basalts have been obtained. The primary melt corresponds to picrite (MgO = 13-14 wt %) with an ultimate saturation of SiO2 (49-50 wt %), a high H2O content (2.2-2.9%), and incompatible elements (Sr, Rb, Ba, Hf). This melt is formed at pressures of 15-20 kbar and temperatures of 1280--1320С . Its further crystallization proceeds in intermediate magma chambers at two discrete pressure levels (i.e., greater than 6, and 1-2 kbar). The results of the petrological studies are in good agreement with the seismotomographic model.
Kirianov V.Yu. Assessment of Kamchatkan Ash Hazard to Airlines // Volcanology and Seismology. 1993. Vol. 14. № 3. P. 246-269.