Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Pavel Kepezhinskas"'
Autor:
Pavel Kepezhinskas, Nikolai Berdnikov, Nikita Kepezhinskas, Natalia Konovalova, Valeria Krutikova, Ivan Astapov
Publikováno v:
Geosciences, Vol 13, Iss 2, p 31 (2023)
The Paleozoic volcano-sedimentary rocks within the structural basement of the horst-and-graben system of the Catalan Coastal Ranges (CCR) are composed of black shale, volcaniclastic sediments, lava flows, sills and lithocrystalloclastic tuffs. Paleoz
Externí odkaz:
https://doaj.org/article/0002fa3ac8f742b5a3a3de8b03603f86
Publikováno v:
Geosciences, Vol 12, Iss 3, p 126 (2022)
Gold is typically transported by mafic and evolved magmas into the upper crust to be deposited in shallow oxidized porphyry and epithermal environments. However, the magmatic behavior of gold is still poorly understood and warrants further attention.
Externí odkaz:
https://doaj.org/article/b1faadfcdfe2436db7fd3db795d0e557
Publikováno v:
Geosciences, Vol 12, Iss 1, p 29 (2022)
Adakites are Y- and Yb-depleted, SiO2- and Sr-enriched rocks with elevated Sr/Y and La/Yb ratios originally thought to represent partial melts of subducted metabasalt, based on their association with the subduction of young ( 20 ppm) arc basalts in a
Externí odkaz:
https://doaj.org/article/224a0cdeb31e42c2bd7d9b8b6e851b8f
Publikováno v:
Minerals; Volume 13; Issue 7; Pages: 878
The Ildeus mafic–ultramafic complex represents plutonic roots of a Triassic magmatic arc tectonically emplaced into the thickened uppermost crust beneath the Mesozoic Stanovoy collided margin. The mafic–ultramafic complex cumulates host Ni-Co-Cu-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::08aebb958aedcb2c94f8fcd12e0340c2
Autor:
Konovalova, Nikolai Berdnikov, Pavel Kepezhinskas, Valeria Krutikova, Nadezhda Kozhemyako, Natalia
Publikováno v:
Minerals; Volume 13; Issue 6; Pages: 819
Igneous rocks from the Russian Far East contain Cu-Ag-Au microspherules with distinct exterior and interior structures, compositions and assemblages of Cu-rich micro-inclusions. Natural microspherules are compared in this study with technogenic Cu-Ag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::75cf2d7a9e016d0083f98da1abec3195
Publikováno v:
Geosciences, Vol 11, Iss 2, p 103 (2021)
While gold partitioning into hydrothermal fluids responsible for the formation of porphyry and epithermal deposits is currently well understood, its behavior during the differentiation of metal-rich silicate melts is still subject of an intense scien
Externí odkaz:
https://doaj.org/article/04c824609874435a8a9f558402747c85
Publikováno v:
Geological Society of America Abstracts with Programs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97a65a789d697b8fce88c3eaa3ab05fb
https://doi.org/10.1130/abs/2021am-363519
https://doi.org/10.1130/abs/2021am-363519
Publikováno v:
Lithos. :106610
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b0d4992acfa3551b2d228aa4a78d938
https://doi.org/10.1016/j.lithos.2022.106610
https://doi.org/10.1016/j.lithos.2022.106610
Publikováno v:
Geological Society of America Abstracts with Programs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e3d97a2e8449cd33b94c90a446f75f1
https://doi.org/10.1130/abs/2020se-344318
https://doi.org/10.1130/abs/2020se-344318
Publikováno v:
E3S Web of Conferences, Vol 98, p 08009 (2019)
A magnesian low-Ti shoshonite dike intruding Archean Norwegian Terrane includes numerous grains of black, blue and gray moissanite (SiC). Moissanite contains inclusions of native Si, Fe and Al, Fe-Cr carbides, Fe-Cr-Mn alloys and diamond. The range o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eacae5fc7b2371dda411af8de03f256e
https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_08009.pdf
https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_08009.pdf