Journal of Volcanology and Seismology最新文献

{"title":"The Conditions for Epithermal Mineralization in the Kyplatap Volcanic Field, Central Chukotka","authors":"A. V. Volkov, A. G. Pilitsyn, V. Yu. Prokofiev, A. A. Dolomanova-Topol, K. Yu. Murashov","doi":"10.1134/s0742046323700252","DOIUrl":"https://doi.org/10.1134/s0742046323700252","url":null,"abstract":"","PeriodicalId":56112,"journal":{"name":"Journal of Volcanology and Seismology","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135705788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tephra Sampled from the Intraplate-Oceanic Island Volcano, Cumbre Vieja: The 2021 Eruption","authors":"V. I. Silaev, G. A. Karpov, A. S. Shuisky, A. F. Khazov, G. V. Ignatiev, S. N. Shanina, B. A. Makeev, I. V. Smoleva, D. V. Kiseleva","doi":"10.1134/s0742046323700288","DOIUrl":"https://doi.org/10.1134/s0742046323700288","url":null,"abstract":"","PeriodicalId":56112,"journal":{"name":"Journal of Volcanology and Seismology","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135705783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Fundamentals of a Phenomenological Theory of Earthquakes","authors":"A. V. Guglielmi, B. I. Klain, A. D. Zavyalov, O. D. Zotov","doi":"10.1134/s0742046323700239","DOIUrl":"https://doi.org/10.1134/s0742046323700239","url":null,"abstract":"","PeriodicalId":56112,"journal":{"name":"Journal of Volcanology and Seismology","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135705787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Character of Magmatism, Hydrothermal-Metasomatic, and Filtration-Transport Processes in Uranium-Bearing Volcanic-Related Structures","authors":"V. A. Petrov, O. V. Andreeva, V. V. Poluektov","doi":"10.1134/s0742046323700306","DOIUrl":"https://doi.org/10.1134/s0742046323700306","url":null,"abstract":"","PeriodicalId":56112,"journal":{"name":"Journal of Volcanology and Seismology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135708122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Geological Structure and Rock Compositions of Kronotsky Volcano, the Largest Stratovolcano in the Frontal Zone of the East Volcanic Belt of Kamchatka","authors":"N. V. Gorbach, A. N. Rogozin","doi":"10.1134/s074204632370029x","DOIUrl":"https://doi.org/10.1134/s074204632370029x","url":null,"abstract":"","PeriodicalId":56112,"journal":{"name":"Journal of Volcanology and Seismology","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135705786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Model of Seismic Rupture Surface of the Chignik Earthquake (Alaska, USA) July 29, 2021 Based on Satellite Radar Interferometry and GNSS","authors":"A. M. Konvisar, V. O. Mikhailov, M. S. Volkova, V. B. Smirnov","doi":"10.1134/s0742046323700276","DOIUrl":"https://doi.org/10.1134/s0742046323700276","url":null,"abstract":"","PeriodicalId":56112,"journal":{"name":"Journal of Volcanology and Seismology","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135705782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Mechanisms Responsible for Translating Impulses from Depth to the Outer Shells of the Modern Earth: The Late Cenozoic Global Tectonomagmatic Increase in Activity on Our Planet","authors":"E. V. Sharkov,&nbsp;M. M. Bogina,&nbsp;A. V. Chistyakov","doi":"10.1134/S0742046323700215","DOIUrl":"10.1134/S0742046323700215","url":null,"abstract":"<p>We know that tectonomagmatic activity periodically increased during the Earth’s history without any visible external factors to cause these occurrences. This is obviously related to the evolution of petrological processes at depth that produce events in the outer shells of the modern Earth (the tectonosphere). However, the essence of these processes and the mechanisms that translate them to the tectonosphere remain little known. We have examined this problem for the particular case of the Late Cenozoic (Neogene to Quaternary) global activation. We know that the modern Earth is a cooling body with a solidifying liquid iron core. The process must be accompanied by a number of thermodynamic, physical, and physicochemical effects, and it is these which might cause the inner activation of our planet. We have tried to shed some light on these problems using available modern geological, petrological, geochemical, and geophysical data on the activation that is just now occurring before our eyes. We have shown that the main active element on the modern Earth must be a thin crystallization zone that is constantly rising; that zone is between the wholly solidified part of the core (the solid inner core) and its completely liquid part (the outer liquid core). It is this zone which harbors various phase transitions in a cooling melt as the melt is passing bifurcation points. The phase transitions are both of the type like a change in released solid phases that accrete to the inner core and as retrograde boiling producing drops of core fluids. It is shown that the drops are rising in a high-Fe host melt and are accumulated at the base of the mantle. Once there, they participate in the generation of mantle plumes which are the chief translators of deep impulses to the outer geospheres, and leave the core for good simultaneously with impulses. It is supposed that at one such point, fluid solubility experienced a sharp drop in the cooling high-iron liquid of the outer core. This must have led to a simultaneous intensification of retrograde boiling of this melt throughout the entire surface of the core crystallization zone, that is to say, on a global scale. It is this phenomenon which must have supplied the excess of core fluids necessary for mass generation of mantle plumes and have served as a trigger for processes involved in the Late Cenozoic global tectonomagmatic activation of the Earth.</p>","PeriodicalId":56112,"journal":{"name":"Journal of Volcanology and Seismology","volume":"17 4","pages":"306 - 319"},"PeriodicalIF":0.7,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4848926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Isotope Composition of Helium in the Late Cenozoic Southern Baikal Volcanic Area and Southern Khangai Volcanic Area","authors":"K. M. Rychkova,&nbsp;O. I. Kalnaya","doi":"10.1134/S0742046323700227","DOIUrl":"10.1134/S0742046323700227","url":null,"abstract":"<p>This paper deals with the isotope composition of helium (³Не/⁴Не = R) in the groundwater of the Southern Baikal volcanic area (SBVA) and Southern Khangai volcanic area (SKhVA) during the Late Cenozoic Period. We have found differences in the behavior and value of that parameter. It was found that the differences in the concentrations of ³Не/⁴Не in the SBVA and the SKhVA resulted from mantle reservoirs that have different isotope compositions of helium. This confirms that the Late Cenozoic volcanism in the SBVA and SKhVA is controlled by mantle sources related to mantle plumes of the Central Asian hot mantle field.</p>","PeriodicalId":56112,"journal":{"name":"Journal of Volcanology and Seismology","volume":"17 4","pages":"294 - 305"},"PeriodicalIF":0.7,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4853859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The 2022 Activity of Ebeko Volcano: The Mechanism and Ejecta","authors":"T. A. Kotenko,&nbsp;S. Z. Smirnov,&nbsp;T. Yu. Timina","doi":"10.1134/S0742046323700264","DOIUrl":"10.1134/S0742046323700264","url":null,"abstract":"<p>This paper provides information on the 2022 eruptive activity of Ebeko Volcano. Phreatic explosions had been occurring in the crater lake from January 22 to June 13 due to water seepage through a plug in the upper part of the magma conduit with subsequent boiling. Vulcanian type explosions started since June 14 and dried the lake. The ash particle-size distribution changed toward smaller sizes. Petrographic, mineralogical, and geochemical studies of the tephra define this period as a phreatomagmatic eruption based on the presence of fresh juvenile material. Interaction between magma and waters of the Ebeko hydrothermal system results in its depletion in alkali and enrichment in silica. We hypothesize that the formation of amorphous water-bearing silica in the form of numerous segregations and its subsequent dehydration can favor the volcano’s explosive activity.</p>","PeriodicalId":56112,"journal":{"name":"Journal of Volcanology and Seismology","volume":"17 4","pages":"259 - 277"},"PeriodicalIF":0.7,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4845937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plume Geometry and Rheology: General Patterns in Probabilistic Gravity Models","authors":"A. M. Petrishchevsky","doi":"10.1134/S0742046323700161","DOIUrl":"10.1134/S0742046323700161","url":null,"abstract":"<p>This study examines and compares 3D distributions of crustal and upper mantle density contrast with a set of geological and geophysical data for the heads of six plumes (Yellowstone, Emeishan, Cathaysia, Sea-of-Okhotsk, Maya–Selemdzha, and Indigirka–Kolyma plumes) down to 200 km depth. According to our data, the asthenospheric parts of the plumes have mushroom shapes, while the asthenospheric magmas are spreading out beneath the lithosphere bottom, less frequently beneath the crustal bottom. The plume heads become narrower at distances of 250–300 km from the central conduit to decrease to diameters of 200–300 km at depths of 100–120 km. In most of the cases, the plume lithospheric and crustal fragments are convex toward the ground surface. The uplifts are occasionally complicated with local depressions in the upper crust, which can be explained by subsidence of the domes of the structures above magma chambers in the subcrustal viscous layer and asthenosphere. Plumes are frequently associated with zones of lithosphere tension (rifts), resulting in linear zones of lower viscosity being mapped in the lower lithospheric and crustal cross sections of the plumes. The structural settings of the plumes under consideration here are controlled by boundaries of lithosphere plates and large segments of the second order. The identity of geometry and rheology in the plumes that were formed at different times (Triassic to Neogene), and in regions far removed from each other (Northeast Russia, Amur region, northwestern United States, South China, and Sea of Okhotsk), provide evidence of the universality of the tectonic settings that favor the penetration of mantle flows into the upper tectonic shells of the Earth. The foremost among these are tension zones in the lithosphere, especially areas where differently directed lithospheric faults intersect.</p>","PeriodicalId":56112,"journal":{"name":"Journal of Volcanology and Seismology","volume":"17 4","pages":"320 - 337"},"PeriodicalIF":0.7,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4849003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}