Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Oleg Melnik"'
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
The origin of deep long-period earthquakes beneath active volcanoes that are sometimes considered as precursors to eruptions remains not fully understood. Here the authors show that these earthquakes can be generated by the rapid degassing in respons
Externí odkaz:
https://doaj.org/article/6178a9d529374323be53d9a3cfaec47e
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Magma extrusion, lava dome growth, collapse of domes, and associated pyroclastic flow hazards are among important volcanological studies. In this paper, we analyze the influence of the magma viscosity and discharge rates on the lava dome morphology a
Externí odkaz:
https://doaj.org/article/b3b70ce461954e8ba45335a27eef4124
Autor:
Jon Blundy, Andrey Afanasyev, Brian Tattitch, Steve Sparks, Oleg Melnik, Ivan Utkin, Alison Rust
Publikováno v:
Royal Society Open Science, Vol 8, Iss 6 (2021)
The transition to a low-carbon economy will increase demand for a wide range of metals, notably copper, which is used extensively in power generation and in electric vehicles. Increased demand will require new, sustainable approaches to copper explor
Externí odkaz:
https://doaj.org/article/497869653f1d4b3fa3b6520c725e540b
Autor:
Thomas D. Hessilt, Sander Veraverbeke, Emily Ogden, Jason Paul, Merritt Turetsky, Max van Gerrevink, Raquel Alfaro-Sanchez, Oleg Melnik, Rebecca C. Scholten, Jennifer Baltzer
Fire is a major disturbance in the boreal forests of the high northern latitude. Fire extent and severity have been increasing in recent decades, and the occurrence of overwintering ‘zombie’ fires has been linked to recent fire extremes. Overwint
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cada19ac1a5442fceb0b1f955b721067
https://doi.org/10.5194/egusphere-egu23-17450
https://doi.org/10.5194/egusphere-egu23-17450
Fagradalsfjall eruption showed a remarkable pulsatory magma discharge activity in Jul-Aug 2021, with a characteristic timescale of ~36 hours (with cycles varying from 17 to 76 hours) and a duration of lava outflow from the crater of 10 to 70 hours. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9c9eda3e101da7b261641ea50d56b5c
https://doi.org/10.5194/egusphere-egu23-7505
https://doi.org/10.5194/egusphere-egu23-7505
Lava domes form during effusive eruptions due to an extrusion of highly viscous magmas from volcanic vents. We present here a study of the lava dome growth at Volcán de Colima, Mexico during 2007-2009 using numerical modelling. The mathematical mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d914ff5398b98dc98d44559af9f83462
https://publikationen.bibliothek.kit.edu/1000160457
https://publikationen.bibliothek.kit.edu/1000160457
Autor:
Alexander Korotkii, I. S. Starodubtsev, Alik Ismail-Zadeh, Igor Tsepelev, Yu. V. Starodubtseva, Oleg Melnik
Publikováno v:
Journal of volcanology and seismology, 15 (3), 159–168
J. Volcanol. Seismol.
Journal of Volcanology and Seismology
J. Volcanol. Seismol.
Journal of Volcanology and Seismology
Lava domes form when a highly viscous magma erupts on the surface. Several types of lava dome morphology can be distinguished depending on the flow rate and the rheology of magma: obelisks, lava lobes, and endogenic structures. The viscosity of magma
Publikováno v:
Izvestiya, Physics of the Solid Earth. 57:257-265
—Volcanic eruptions belong to the extreme events that change the Earth’s landscape and affect global climate and environment. Although special attention is given to super-eruptions, the non-explosive rhyolitic (highly viscous) eruptions and large
Publikováno v:
Geophysical Journal International. 223:1597-1609
SUMMARY Lava domes form when highly viscous magmas erupt on the surface. Several types of lava dome morphology can be distinguished depending on the flow rate and the rheology of magma. Here, we develop a 2-D axisymmetric model of magma extrusion on
Autor:
Nicolas D. Greber, Oleg Melnik, Ivan Utkin, Dylan P. Colón, Ilya N. Bindeman, Leif Karlstrom, A. S. Artyomova
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Scientific Reports
Bindeman, I. N; Greber, N. D.; Melnik, O. E.; Artyomova, A. S.; Utkin, I. S.; Karlstrom, L.; Colón, D. P. (2020). Pervasive Hydrothermal Events Associated with Large Igneous Provinces Documented by the Columbia River Basaltic Province. Scientific reports, 10(1) Springer Nature 10.1038/s41598-020-67226-9
Scientific Reports
Bindeman, I. N; Greber, N. D.; Melnik, O. E.; Artyomova, A. S.; Utkin, I. S.; Karlstrom, L.; Colón, D. P. (2020). Pervasive Hydrothermal Events Associated with Large Igneous Provinces Documented by the Columbia River Basaltic Province. Scientific reports, 10(1) Springer Nature 10.1038/s41598-020-67226-9
The degree and extent of crustal hydrothermal alteration related to the eruption of large igneous provinces is poorly known and not easily recognizable in the field. We here report a new δ18O dataset for dikes and lavas from the Columbia River Basal