Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Evgenii Sharkov"'
Publikováno v:
Minerals, Vol 13, Iss 10, p 1318 (2023)
The Middle Paleoproterozoic (1.99 Ga) Tiksheozero ultramafic‒alkaline‒carbonatite complex in Northern Karelia is one of the Earth’s oldest alkaline complexes. The major and trace-element compositions of minerals were used to decipher the geneti
Externí odkaz:
https://doaj.org/article/de239d0bf1684b228f51ab6526ce5735
Publikováno v:
Minerals, Vol 11, Iss 6, p 570 (2021)
This article reports new geochemical, Sr-Nd-Hf-Pb and Re-Os data on the rocks of the Middle Paleoproterozoic (1.99 Ga) Tiksheozero ultramafic-alkaline-carbonatite complex confined to the northeastern margin of the Karelian Craton. We focus on the poo
Externí odkaz:
https://doaj.org/article/a0aade6e32f14e3fa80d3867c6fbd973
Autor:
V. V. Shchiptsov, Boris Belyatsky, P. V. Frolov, Evgenii Sharkov, A. V. Chistyakov, Maria Bogina
Publikováno v:
Petrology. 29:475-501
The paper reports first comprehensive geological, petrographic, mineralogical, and geochemical data on one of the world’s oldest Tiksheozero ultramafic‒alkaline‒carbonatite complex (~1.99 Ga), which belongs to the Mid-Paleoproterozoic igneous p
Autor:
Evgenii Sharkov
Publikováno v:
Journal of Volcanology and Seismology. 14:373-378
One of the main natural disasters is explosive volcanic eruptions, often lasting 2–4 months. It is obvious that such eruptions of volcanoes cause simultaneous mass release of gas bubbles from the melts of their shallow peripheral chambers, which mu
Autor:
Evgenii Sharkov
Most researchers believe that large igneous provinces (LIPs) are formed by adiabatic melting of heads of ascending mantle plumes. Because the LIPs have existed throughout the geological history of the Earth (Ernst, 2014), their rocks can be used to p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0af9b5e6f6da46a3c9929153f7a998c1
https://doi.org/10.5194/egusphere-egu22-968
https://doi.org/10.5194/egusphere-egu22-968
Publikováno v:
Journal of Volcanology and Seismology. 14:327-340
The study of the evolution of large igneous provinces showed that the Archean and Early Paleoproterozoic mantle plumes were formed by high-Mg ultramafic rocks and looked like thermal plumes. However, this situation experienced a cardinal change in th
Autor:
S. G. Skolotnev, N. S. Bortnikov, T. F. Zinger, Evgenii Sharkov, Fernando Bea, S. А. Silantiev, Pilar Montero
Publikováno v:
Доклады Академии наук. 489:483-489
U-Pb age, oxygen and hafnium isotopic ratios in zircon from rocks of ocean core complexes at Mid-Atlantic Ridge have been studied using SHRIMP and MC-LA-ICP-MS techniques. U-Pb dating revealed four group of zircons: 1) 0,6-1,7 Ma, 2) 6,7-11,2 Ma, 3)
Autor:
N. S. Bortnikov, Sergei Silantyev, Pilar Montero, Evgenii Sharkov, T. F. Zinger, S. G. Skolotnev, Fernando Bea
Publikováno v:
Doklady Earth Sciences. 489:1396-1401
The U–Pb age and oxygen and hafnium isotope ratios of zircon from rocks of oceanic core complexes along the Mid-Atlantic Ridge have been studied using SHRIMP and MC-LA-ICP-MS techniques. The U–Pb dating revealed four groups of zircon: (1) 0.6–1
Publikováno v:
Minerals
Volume 11
Issue 6
Minerals, Vol 11, Iss 570, p 570 (2021)
Volume 11
Issue 6
Minerals, Vol 11, Iss 570, p 570 (2021)
This article reports new geochemical, Sr-Nd-Hf-Pb and Re-Os data on the rocks of the Middle Paleoproterozoic (1.99 Ga) Tiksheozero ultramafic-alkaline-carbonatite complex confined to the northeastern margin of the Karelian Craton. We focus on the poo
Autor:
O. A. Bogatikov, Maria Bogina, V. V. Shchiptsov, Boris Belyatsky, A. V. Chistyakov, P. V. Frolov, Evgenii Sharkov
Publikováno v:
Doklady Earth Sciences. 486:638-643
The Tiksheozero ultramafic–alkaline–carbonatite intrusive complex, like numerous carbonatite-bearing complexes of similar composition, is a part of a large igneous province related to the ascent of a thermochemical mantle plume. The geochemical a